Overweight and Obese Pet Owners: Respondent and Pet Characteristics in the Rural Midwestern United States

The obesity epidemic has impacted both people and pets in the rural Midwestern United States (MWUS). Tailoring health advice to the socio-demographic characteristics and dietary patterns of owners and their pets can help promote adherence to health behavior changes for owners and foster health improvements for both owners and pets. The authors completed this cross-sectional study in the rural MWUS with the objective of describing health-related characteristics of non-over-weight/obese versus overweight/obese [NOO vs. OO] cat and dog owners and their pets. The primary aim was to detect differences that could inform health recommendations. For both cat and dog owners, dietary and lifestyle profiles differed between those who were non-overweight/obese and those who were overweight/obese. NOO dog owners trended toward fewer health problems, took fewer medications (p < 0.02), took more supplements (p < 0.03), and ate less fast food (p < 0.03) and more fish (p < 0.001) than OO owners. Dogs owned by NOO owners had more owner-initiated activity (M ± SD: 44.6 ± 63.0 vs. 27.2 ± 26.4 min/d) and were on more supplements (p < 0.003). NOO cat owners were younger (p < 0.03), had fewer health problems (p < 0.04), took fewer medications (p < 0.04), engaged in more exercise (p < 0.02), and ate less fast food (p < 0.03) than OO cat owners. The only significant difference between cats of NOO vs. OO owners was their predominant gender: 57% vs. 74% female (p < 0.01). These findings have implications for marketing, education, and health care for both owners and pets. Further investigation of the relationship between pet ownership and health is warranted.     

Examining Differences between Homebound Older Adult Pet Owners and Non-pet Owners in Depression,Systemic Inflammation,and Executive Function

Homebound older adults are prone to depression, which is linked to systemic inflammation that promotes executive function decline. A companion animal may reduce the negative biobehavioral processes asso- ciated with depression, inflammation, and reduced executive function in homebound older adults. The primary aim of this study was to examine dif- ferences between homebound older adult pet owners and non-pet owners in depression, salivary C-reactive protein (CRP), and executive function. The secondary aim was to determine if the level of attachment to pets was as- sociated with depression, salivary CRP, and executive function. The study was cross-sectional and investigated homebound older adult pet owners and non-pet owners (n = 88) using psychometrically reliable and valid instru- ments (Geriatric Depression Scale Short Form and CLOX 1). Salivary CRP was assessed with immunoassay. Level of attachment to pets was measured using a Likert scale (0–10). Mean age for the total sample was 75 years (SD = 9). Forty-eight (55%) participants owned pets (56% dogs, 25% cats, 4% other pets, 15% both cats and dogs). Pet owners reported a high level of attachment to pets (Median = 10). Pet owners had significantly higher ex- ecutive function than non-pet owners (t = –2.07; p = 0.04) but there were no significant differences in executive function between cat owners and dog owners (t = 1.53; p = 0.14). Pet owners and non-pet owners were similar in depression (t = –1.80, p = 0.08) and salivary CRP levels (t = 0.27, p = 0.79). Level of attachment to pets was significantly and positively correlated with executive function (r = 0.30; p = 0.04) but was not significantly correlated with depression (r = 0.04, p = 0.77) or salivary CRP (r = –0.04, p = 0.80). Compared with non-pet owners, pet owners had better executive function but similar depression and salivary CRP levels. Reasons for these findings are unclear. Significant positive correlation be- tween pet attachment and executive function suggests further investigation in this area. Future studies with larger samples and a longitudinal design are needed to investigate the biobehavioral changes over time in relation to pet ownership, level of attachment to pets, and executive func- tion in homebound older adults.     

The physiologic complexity of beat-to-beat blood pressure is associated with age-related alterations in blood pressure regulation

The fluctuations in resting-state beat-to-beat blood pressure (BP) are physiologically complex, and the degree of such BP complexity is believed to reflect the multiscale regulation of this critical physiologic process. Hypertension (HTN), one common age-related condition, is associated with altered BP regulation and diminished system responsiveness to perturbations such as orthostatic change. We thus aimed to characterize the impact of HTN on resting-state BP complexity, as well as the relationship between BP complexity and both adaptive capacity and underlying vascular characteristics. We recruited 392 participants (age: 60–91 years), including 144 that were normotensive and 248 with HTN (140 controlled- and 108 uncontrolled-HTN). Participants completed a 10-min continuous finger BP recording during supine rest, then underwent measures of lying-to-standing BP change, arterial stiffness (i.e., brachial-ankle pulse wave velocity), and endothelial function (i.e., flow-mediated vasodilation). The complexity of supine beat-to-beat systolic (SBP) and diastolic (DBP) BP was quantified using multiscale entropy. Thirty participants with HTN (16 controlled-HTN and 14 uncontrolled-HTN) exhibited orthostatic hypotension. SBP and DBP complexity was greatest in normotensive participants, lower in those with controlled-HTN, and lowest in those in uncontrolled-HTN (p < 0.0005). Lower SBP and DBP complexity correlated with greater lying-to-standing decrease in SBP and DBP level (β = −0.33 to −0.19, p < 0.01), greater arterial stiffness (β = −0.35 to −0.18, p < 0.01), and worse endothelial function (β = 0.17–0.22, p < 0.01), both across all participants and within the control- and uncontrolled-HTN groups. These results suggest that in older adults, BP complexity may capture the integrity of multiple interacting physiologic mechanisms that regulate BP and are important to cardiovascular health.     

Biopsychosocial Factors and Cognitive Function in Cat Ownership and Attachment in Community-dwelling Older Adults

ABSTRACT

Few studies consider the health benefits of pet ownership from a biopsychosocial perspective, and a paucity of studies investigate cat ownership. The current study was designed to determine if psychosocial factors (stress, loneliness, and depression), biological levels of stress and inflammation (salivary cortisol, interleukin-1β, and C-reactive protein [CRP]), and cognitive function were associated with companion cat ownership/attachment in community-dwelling older adults. Community-dwelling older adults (n = 96, mean age = 76.6 years) who either owned a cat and no dog (n = 41) or owned neither a cat nor a dog (n = 55) completed questionnaires (Perceived Stress Scale, Revised–UCLA Loneliness Scale, Geriatric Depression Scale-Short Form, Montreal Cognitive Assessment, and Lexington Attachment to Pets Scale) and provided saliva specimens which were assayed for stress and inflammatory biomarkers. The majority of participants screened positive for mild cognitive impairment, reported low levels of stress, loneliness, and depression, and the biomarkers reflected fairly low levels of stress and inflammation. Binary logistic regression analysis revealed that psychosocial factors, salivary biomarkers, and cognitive function were not significantly associated with cat ownership. Age was the only significant predictor of cat ownership (OR = 0.92, p < 0.01) with the odds of cat ownership decreasing by 8.3% per year of advancing age. On average, cat owners were “somewhat attached” to their cats; however, 26% were “strongly attached” to their cats. Correlation analyses revealed the level of attachment to cats was not associated with study outcomes. These results show that cat ownership declined with each advancing year, which lessens the opportunity for older adults to form attachment bonds. The level of pet attachment supports the consideration of cats as a source of an attachment relationship for older adults, including those with cognitive impairment.     

Sociality Motivation and Anthropomorphic Thinking about Pets

Sociality motivation, the need to feel socially connected with others, has been proposed as an important determinant of individual variation in anthropomorphic thinking. Specifically, it has been suggested that people who are socially isolated or disconnected will tend to infer more human-like mental states in animals and other nonhuman agents (computers, robots, metaphysical beings, etc.), than those who have higher levels of contact with other people. We investigated this hypothesis in a community-based sample of cat and dog owners, measuring degree of anthropomorphism by asking them which emotions they believed their pet was capable of experiencing, how likely they were to rely on it for social support, and how attached they were to it. Structural measures of social disconnection, including the number of other adults living in the household and the number of social contacts outside the home, were not generally associated with the tendency to think anthropomorphically about pets. However, owners living in households with no children (under the age of 16 years) reported higher levels of attachment to their pet than did those with children (B = 1.678, p < 0.001), and felt that they derived relatively more social support from it than they did from humans (F_(1,244) = 4.997, p < 0.05, partial η² = 0.020). In addition, a trait-based indicator of social disconnection (self-reported anxiety about human social relationships) was associated with a heightened tendency for owners to report turning to their pet for support (F_(1,244) = 19.617, p < 0.001, partial η² = 0.074), and attributing more human-like emotions to it (F_(1,244) = 8.354, p < 0.005, partial η² = 0.033). These findings support a link between social disconnection and anthropomorphic thinking in a community setting; they also suggest that different forms of social disconnection (structural and trait-based) may generate different types of sociality motivation, and thereby influence different facets of anthropomorphic thinking.     

Pet Ownership,Type of Pet and Socio-Emotional Development of School Children

ABSTRACT

The current study was designed to compare the socio-emotional characteristics of school children pet owners and children without pets and to examine whether the type of pet is a variable which can differentiate the socio-emotional development of their owners. The subjects, 425 girls and 401 boys, were students of fourth (n=265), sixth (n=295) and eighth (n=266) grade of elementary schools from the metropolitan area of Zagreb, Croatia. Socio-emotional variables assessed in the study were: child attachment to pet, child prosocial orientation, empathy, loneliness, perception of family climate and social anxiety. The data showed that 54.4% of children in the sample were pet owners (26.2% of children in the study had a dog, 9.2% had a cat, and 19.0% had some other pet). In order to answer the main research question, several analyses of variance (gender by grade by pet ownership) were computed for each criterion of socio-emotional development. Significant main effects were obtained for empathy, prosocial orientation and pet attachment, with dog owners being more empathic and prosocially oriented than non-owners, and dog owners and cat owners being more attached to their pets than owners of other kinds of pets. Additional analyses of variance were computed in order to examine the role of attachment in the socio-emotional functioning of the children. Subjects were divided in three sub-groups: non-owners, lower then average attached owners, and higher than average attached owners. Children who scored higher than average on the attachment to pets scale showed significantly higher scores on the empathy and prosocial orientation scales than non-owners and children who scored lower than average on the attachment to pets scale. It was also found that children with higher levels of attachment to pets rated their family climate significantly better than children who had lower attachment to pets.     

Pet Loss and Grief: Identifying At-risk Pet Owners during the Euthanasia Process

Pet owners often experience complex and profound grief reactions when their animals are euthanized. Veterinary staff are increasingly being called upon to be aware of and to respond to the grief reactions of pet owners at this critical time. The objectives of this study were to identify pet owners who are most at risk of grief and to suggest veterinary interventions during the euthanasia process. A convenience sample of 409 pet owners whose animals had been euthanized in the past year took part in a survey. Variables of interest included pet and pet-owner demographics, pet-death characteristics, attachment to pet, and bereavement reactions. Stepwise multiple regression analyses were conducted to identify factors related to the three grief reaction subtypes: sorrow, anger, and guilt. Results indicated that attachment to pets was a strong predictor of feelings of grief/sorrow (p < 0.001) and anger (p < 0.001). Sudden death was also related to feelings of anger (p < 0.05). Cancer diagnosis was negatively related to feelings of anger (p < 0.05) and guilt (p < 0.01). The findings from this study provide additional insight into the complexity of grief following pet euthanasia. For veterinary staff, anticipating the needs of pet owners and supporting them through the grief process is an integral role. Understanding which pet owners are at greatest risk of grief is an important initial step, followed by empathic communications, sensitive interactions, and the provision of grief support.     

Reasons for Relinquishment and Return of Domestic Cats (Felis Silvestris Catus) to Rescue Shelters in the UK

ABSTRACT

Significant numbers of cats enter rescue and re-homing facilities each year, over half of which are relinquished directly by owners. Identifying the reasons why owners decide to give up their pet is an important step in the development of education strategies to encourage retention of cats by their owners. In addition, identifying why adopting owners fail to retain their new cats is important in the refinement of homing policies. Characteristics of 6,089 cats relinquished and returned to 11 rescue facilities in the UK were recorded over a year. In addition, information was collected on the reason why owners gave up, or brought back, their pet. Sixty percent of cats and kittens entering shelters were relinquished by owners, with 19% being due to owner circumstances, such as moving to rented accommodation or changes in family circumstances. Seven percent were for behavioral reasons, and 5% because of the occurrence of allergy or asthma in owners. Returned cats were significantly more likely to be older (Mann Whitney U, Z = –9.167, p < 0.001) and neutered (Pearson χ² = 110.0, df = 2, p < 0.001) than the general relinquished population. The reasons for original relinquishment and return of owned cats were also significantly different (Pearson χ² = 84.4, df = 6, p < 0.001), with 38% of cats being returned for behavioral reasons, and 18% because of allergy or asthma. The commonest behavioral reason for both relinquishment and return was aggression between cats in the household.     

Test-retest reliability of 24-hour ambulatory blood pressures

The test-retest reliability of 24-hour ambulatory blood pressures (ABP) was examined using correlational analyses as well as idiographic and nomothetic time-series regression analyses. Thirty normotensives (equal males and females) underwent ABP monitoring on three occasions, each of which was separated by a week. When analyzing the data, various postural positions, activities, and locations were controlled for in order to differentially assess the effects of these variables independently. Correlational analyses found the overall test-retest reliability of the ABPs to be quite good (SBP r =.84–.88, DBP r =.83–.86, HR r =.91–.95). Correlations examined within specific postural positions, activities, and locations were also significant. The time-series regression analyses used confirmed the reproducibility of the ABPs, with no greater than 20% of the subjects showing significant changes in ABPs over the three monitoring periods. Gender effects were also examined. In general, males had significantly higher systolic ABPs overall, although there was no influence of gender in terms of the test-retest reliability of the ABPs.     

Sympathovagal Balance,Nighttime Blood Pressure,and QT Intervals in Normotensive Obese Women

Objective : We describe associations among the heart‐rate‐corrected QT (QTc) interval, QTc dispersion (QTc‐d), circadian BP variation, and autonomic function in obese normotensive women and the effect of sustained weight loss. Research Methods and Procedures : In 71 obese (BMI = 37.14 ± 2.6 kg/m²) women, 25 to 44 years of age, circadian BP variations (24‐hour ambulatory BP monitoring), autonomic function (power spectral analysis of RR interval oscillations), and cardiac repolarization times (QTc‐d and QTc interval) were recorded at baseline and after 1 year of a multidisciplinary program of weight reduction. Results : Compared with nonobese age‐matched women (n = 28, BMI = 23 ± 2.0 kg/m²), obese women had higher values of QTc‐d (p < 0.05) and QTc (p < 0.05), an altered sympathovagal balance (ratio of low‐frequency/high‐frequency power, p < 0.01), and a blunted nocturnal drop in BP (p < 0.01). In obese women, QTc‐d and the QTc interval correlated with diastolic nighttime BP (p < 0.01) and sympathovagal balance (p < 0.01). Waist‐to‐hip ratio, free fatty acids, and plasma insulin levels correlated with QT intervals and reduced nocturnal drops in both systolic and diastolic BP and sympathovagal balance (p < 0.01). After 1 year, obese women lost at least 10% of their original weight, which was associated with decrements of QTc‐d (p < 0.02), the QTc interval (p < 0.05), nighttime BP (p < 0.01), and sympathovagal balance (p < 0.02). Discussion : Sustained weight loss is a safe method to ameliorate diastolic nighttime BP drop and sympathetic overactivity, which may reduce the cardiovascular risk in obese women.     

Sociodemographics of Pet Ownership among Adolescents in Great Britain: Findings from the HBSC Study in England,Scotland, and Wales

The aim of this study was to assess the prevalence of pet ownership among adolescents in Great Britain and identify any sociodemographic differences between pet owners and non-pet owners. A total of 14,328 11-to 15-year-old adolescents from England, Scotland, and Wales were included in the analysis. Results revealed 15-year-old adolescents were significantly more likely than 11-year-old adolescents to own dogs (OR = 1.146, p < 0.001) but less likely to own fish, reptiles, or amphibians (OR = 0.629, p < 0.001), and small mammals (OR = 0.630, p < 0.001). Thirteen-year-olds were significantly more likely than 11-year-olds to own dogs (OR = 1.240, p = 0.021) and birds (OR = 1.299, p = 0.010), but significantly less likely to own fish, reptiles, or amphibians (OR = 0.795, p < 0.001). No gender differences were found. White adolescents were more likely than non-white adolescents to own all pet types. Those living in single-parent families were significantly more likely than those living with two parents to own dogs (OR = 1.186, p = 0.013) and cats (OR = 1.319, p < 0.001). Furthermore, those who reported living in stepfamilies were also more likely to own cats (OR = 1.428, p < 0.001). Adolescents with siblings were more likely to own cats (OR = 1.391, p = 0.001), fish, reptiles, or amphibians (OR = 1.220, p = 0.037) than adolescents without siblings. Adolescents with employed parents (both or one) were significantly more likely than those with unemployed parents to own dogs (OR = 1.414, p = 0.002) and birds (OR = 1.523, p = 0.018). Adolescents from high-affluence families were less likely than adolescents from low-affluence families to own dogs (OR = 0.888, p = 0.037), small mammals (OR = 0.832, p = 0.005), and birds (OR = 0.801, p = 0.046). Furthermore, family affluence differences were found in different pet types. Differences in all pet types and siblings were also found in a proxy measure of attachment to pets. This study provides evidence that pet ownership is related to several sociodemographic factors. These are relevant to take into account when performing HAI studies on adolescents.     

Meetings

ABSTRACT

This exploratory study builds on existing research on the physiological stress response to human–animal interactions in a non-clinical sample of adult dog-owners interacting with their own or an unfamiliar therapy dog under similar conditions. Participants were therapy-dog owners (TDO group; n = 5) interacting with their own dogs and dog owners interacting with an unfamiliar therapy dog (AAA group; n = 5). Following a 30minute baseline period, participants completed a stress task followed by a 30-minute dog interaction and then watched a neutral video for 60 minutes. The outcome variable of interest was the bio-behavioral stress response, measured by systolic and diastolic blood pressure (SBP, DBP), heart rate (HR), salivary cortisol, salivary alpha-amylase, and self-report. Trait anxiety and attitudes toward pets were assessed as moderating variables. Results revealed consistent physiological patterns, showing modest increases with the stressor and decreases from baseline following the intervention, for salivary cortisol, SBP, DBP, HR, and self reported anxiety and stress for both groups. In general, although the TDO group tended to perceive less stress and anxiety during the intervention than the AAA group, greater reductions in physiological measures were observed in the AAA group. Positive attitudes toward pets in the total sample of dog owners were associated with decreased levels of self-reported stress (p < 0.05), salivary cortisol, and SBP, while higher levels of trait anxiety were associated with higher levels of salivary cortisol (p < 0.05). In addition, higher levels of trait anxiety were associated with lower levels of autonomic nervous system indicators of stress (HR; SBP, p < 0.05; DBP, p < 0.05). Results support a buffering effect on the stress response associated with owners interacting with their dogs that may extend to interactions with unfamiliar therapy dogs in AAA, and supports the need for replication studies with larger sample sizes.     

An Experience Sampling Approach to Investigating Associations between Pet Presence and Indicators of Psychological Wellbeing and Mood in Older Australians

ABSTRACT

In this study we examined associations between pet ownership and presence and indicators of psychological wellbeing in older Australians, using an innovative, experience sampling methodology and a community-living sample of 68 adults, including 41 pet owners, all aged over 65 years. In response to randomized prompts the participants provided information about their location, social companions, activities, and mood state six times daily for seven consecutive days. They also completed a number of surveys measuring various aspects of wellbeing. There were no significant differences in our outcome measures between pet owners and those who did not own at least one pet, and few of our pet owners reported engaging in pet-focused human– animal activities, such as walking their dog or playing with their cat. However, frequency of pet presence during activities of daily living was associated with, and statistically predictive of, several measures of wellbeing and mood. From our results we tentatively conclude that more frequent presence of a pet, particularly a dog, may be associated with greater psychological wellbeing in this cohort. More importantly, we confirm that the intensive experience sampling methodology provides a novel means of examining human–pet interactions, enabling a closer analysis of moment-by-moment pet presence than has been possible using alternative approaches.     

The Effects of a Therapy Dog on the Blood Pressure and Heart Rate of Older Residents in a Nursing Home

The aim of the present project was to investigate whether repeated visits by a therapy dog to nursing homes might affect the older residents’ systolic blood pressure and heart rate. A secondary aim was to investigate and compare effects (differences in responses) in older people with high and normal systolic blood pressure. The project consisted of two consecutive studies; the dog study (two researchers and a therapy dog with a handler visited the residents at three nursing homes, n = 13), and the control study (the two researchers alone visited the residents at three different nursing homes, n = 13). The studies were divided into three periods; period 1 (weeks 1–2), period 2 (weeks 3–4), and period 3 (weeks 5–6) and included two visits per week. The dog and her handler visited during periods 2 and 3 in the dog study. Participants’ heart rate and blood pressure were measured at 0 and 20 minutes at each visit. The data were analyzed using Friedman's two- way analysis of Variance by Rank with post-hoc analysis using Wilcoxon signed-rank tests with a Bonferroni correction, and also with the Mann-Whitney U test for independent samples. In the dog study, participants’ heart rate decreased significantly (p = 0.006) from period 1 to period 3. Participants with an initial systolic blood pressure ≥ 130 mmHg had a significant decrease in both systolic blood pressure (p = 0.009) and heart rate (p = 0.009). In the control study, participants’ heart rate and systolic blood pressure did not change significantly. The participants in the dog study had a significantly lower systolic blood pressure during period 3 (p = 0.016) compared with those in the control study. In conclusion, repeated visits by a therapy dog–handler team decreased the older adults’ heart rate, and for those with high initial systolic blood pressure, blood pressure also decreased. In addition, systolic blood pressure decreased significantly in the dog group when compared with the control group.     

Waist Circumference and Cardiovascular Risk Factors in Prepubertal Children

Objective: Intra‐abdominal fat has been identified as being the most clinically relevant type of fat in humans. Therefore, an assessment of body‐fat distribution could possibly identify subjects with the highest risk of adverse lipid profile and hypertension. Few data on the relationship between body‐fat distribution and cardiovascular risk factors are available in children, especially before puberty. Research Methods and Procedures: This cross‐sectional study was undertaken to explore the relationship between anthropometric variables, lipid concentrations, and blood pressure (BP) in a sample of 818 prepubertal children (ages 3 to 11 years) and to assess the clinical relevance of waist circumference in identifying prepubertal children with higher cardiovascular risk. Height, weight, triceps and subscapular skinfolds, waist circumference, and BP were measured. Plasma levels for triacylglycerol, total cholesterol, high‐density lipoprotein (HDL) cholesterol, low‐density lipoprotein cholesterol, apolipoprotein A1 (ApoA1), and apolipoprotein B (ApoB) were determined. Results: Females were fatter than males (5.8 [3.5] vs. 4.8 [3.3] kg of fat mass; p < 0.01). Males had higher HDL cholesterol and ApoA1/ApoB plasma concentrations than females (p < 0.001 and p < 0.01, respectively). Waist circumference had a higher correlation with systolic and diastolic BP (r = 0.40 and 0.29, respectively; p < 0.001) than triceps (r = 0.35 and 0.21, respectively; p < 0.001) and subscapular (r = 0.28 and 0.16, respectively; p < 0.001) skinfolds and relative body weight (0.33 and 0.23, respectively; p < 0.001). Multivariate linear model analysis showed that ApoA1/ApoB, HDL cholesterol, total cholesterol/HDL cholesterol, and systolic as well as diastolic BP were significantly associated with waist circumference and triceps and subscapular skinfolds, independently of age, gender, and body mass index. Discussion: Waist circumference as well as subscapular and triceps skinfolds may be helpful parameters in identifying prepubertal children with an adverse blood‐lipids profile and hypertension. However, waist circumference, which is easy to measure and more easily reproducible than skinfolds, may be considered in clinical practice. Children with a waist circumference greater than the 90th percentile are more likely to have multiple risk factors than children with a waist circumference that is less than or equal to the 90th percentile.     

Administration Time‐Dependent Effects of Valsartan on Ambulatory Blood Pressure in Elderly Hypertensive Subjects

Previous results have indicated that valsartan administration at bed‐time, as opposed to upon wakening, improves the diurnal/nocturnal ratio of blood pressure (BP) toward a normal dipping pattern, without loss of 24 h efficacy. This ratio is characterized by a progressive decrease with aging. Accordingly, we investigated the administration time‐dependent antihypertensive efficacy of valsartan, an angiotensin blocking agent, in elderly hypertensive patients. We studied 100 elderly patients with grade 1–2 essential hypertension (34 men and 66 women), 68.2±4.9 years of age, randomly assigned to receive valsartan (160 mg/d) as a monotherapy either upon awakening or at bed‐time. BP was measured for 48 h by ambulatory monitoring, at 20 min intervals between 07∶00 to 23∶00 h and at 30 min intervals at night, before and after 3 months of therapy. Physical activity was simultaneously monitored every minute by wrist actigraphy to accurately determine the duration of sleep and wake spans to enable the accurate calculation of the diurnal and nocturnal means of BP for each subject. There was a highly significant BP reduction after 3 months of valsartan treatment (p<0.001). The reduction was slightly larger with bed‐time dosing (15.3 and 9.2 mm Hg reduction in the 24 h mean of systolic and diastolic BP, respectively) than with morning dosing (12.3 and 6.3 mm Hg reduction in the 24 h mean of systolic and diastolic BP, respectively). The diurnal/nocturnal ratio, measured as the nocturnal decline of BP relative to the diurnal mean, was unchanged in the group ingesting valsartan upon awakening (?1.0 and ?0.3 for systolic and diastolic BP; p>0.195). This ratio was significantly increased (6.6 and 5.4 for systolic and diastolic BP; p<0.001) when valsartan was ingested at bed‐time. The reduction of the nocturnal mean was doubled in the group ingesting valsartan at bed‐time, as compared to the group ingesting it in the morning (p<0.001). In elderly hypertensive patients, mainly characterized by a diminished nocturnal decline in BP, bed‐time valsartan dosing is better than morning dosing since it improves efficacy during the nighttime sleep span, with the potential reduction in cardiovascular risk that has been associated with a normalized diurnal/nocturnal BP ratio.     

Children with pets do not show higher empathy: A challenge to current views

Abstract

A group of children (n=137) were surveyed with respect to pet ownership and pet preferences to explore the link between the human–animal bond and empathy. The most notable findings—and contrary to our predictions—were: (1) there was no difference in empathy (Bryan Empathy Index) between pet owners and non-owners; (2) there was no correlation between empathy and attachment to pets (Companion Animal Bonding Scale); and (3) higher empathy scores were not related to pet-preference indicators. A more fine-grained examination of the pet-owning group only revealed differences with respect to type of animal owned. Higher empathy was evident with dog ownership as opposed to other pet types. However, this needs to be tempered by the equally interesting observation that lower empathy was related to cat ownership. Regardless of how ownership groups are configured, there is consistent evidence that differentiates cat owners (lower empathy) from dog owners (higher empathy). When pet ownership and pet preference are combined to form new groupings, again, the cat effects and dog effects are evident. Implications extend to the need: (1) for future research on the nature of the human–animal bond; (2) to explore the relationship between personality and animal bonding; and (3) to refine the questions surrounding the animal-based links to empathy, as well as other related constructs such as prosocial behaviour, compassion, self-esteem, self-control, autonomy, affection, stress, responsibility, and perhaps even emotional intelligence, career paths and community service.     

Living with Wild Dogs: Personality Dimensions in Captive Dingoes (Canis dingo) and Implications for Ownership

Despite the commonly held belief that wild canines do not make “good” household companions, many people choose to live with them. The aim of the present study was to investigate owner-rated personality in a population of dingoes living as companion animals. Owners recruited from a registered dingo organization assessed the personality of 40 dingoes using the Monash Canine Personality Questionnaire- Revised (MCPQ-R). The dingoes (22 female; 18 male) ranged in age from 6 months to 11 years (M = 3.6 years, SD = 2.4); weighed an average of 19.07 kg (SD = 3.41); were mostly entire (i.e., not de-sexed or spayed or neutered; 62.5%) and lived in multiple dingo households (72.5%). Results show that dingoes were rated significantly higher than domestic dogs (n = 455; various breeds from a previous Australian study) for the dimension Motivation/Self-Assuredness (p < 0.001), and significantly lower than dogs for Training Focus (p < 0.001). Many of the personality traits of dingoes reside outside what is considered “ideal” characteristics important for a successful and rewarding dog–owner relationship. It is possible that dingo personality rests within the realms of what is “acceptable” pet canine behavior, at least for some owners, and that they may have adjusted their perception and attitudes to meet their expectations of the species. Motivations for dingo ownership and the applicability of using a domestic dog personality questionnaire on wild canids are discussed.     

Sterilization of Companion Animals: Exploring the Attitudes and Behaviors of Latino Students in South Texas

A sample of 131 Latino students attending a university in south Texas near the United States–Mexico border completed a self-administered questionnaire regarding their companion animals (pets). Compared with dog caregivers (owners) (n = 106), cat caregivers (n = 25) were significantly more likely to favor early spay/neuter of pets and to report that the primary benefit received from their own pet was relational (for example, companionship) rather than functional (for example, sense of safety). The rate of sterilization was significantly higher for cats (60%) than for dogs (26.4%). Sterilization rates were significantly higher for cats whose owners favored early spay/neuter and had accurate knowledge about sterilization of female cats and dogs. Sterilization rates were significantly higher for dogs whose owners had a veterinarian, favored early spay/neuter, and valued relational benefits of guardianship more than functional benefits. Approximately 41% of owners whose pets were not sterilized reported that they wanted puppies or kittens, and 25% reported that the cost of the procedure was the primary barrier. Sterilization programs must include both education about the benefits of sterilization and low-cost spay/neuter services.     

Plasma Leptin and Blood Pressure in Men: Graded Association Independent of Body Mass and Fat Pattern

Objective: The role of leptin in the association between body mass, central adiposity, and blood pressure (BP) is controversial. This study evaluated the relationship between leptin and BP in relation to body mass index (BMI) and fat distribution in a large sample of untreated male adults. Research Methods and Procedures: The study population was made up of 457 untreated male employees of the Olivetti factory in Naples. Plasma leptin, complete anthropometry, BP, and relevant biochemical variables were measured. Results: Log‐transformed plasma leptin levels were directly associated with BMI (r = 0.661, p < 0.001) and waist circumference (r = 0.630; p < 0.001). Leptin also correlated with systolic (r = 0.258) and diastolic (r = 0.277) BP (p < 0.001). The association between leptin and BP was maintained after accounting for age, BMI (or waist circumference), log‐insulin, and serum creatinine (p < 0.01); this association was stronger than that with BMI. Logistic regression analysis showed that an increased prevalence of hypertension (BP ≥ 140 and/or 90 mm Hg) was associated with high plasma leptin levels when controlling for age and waist circumference (odds ratio, 1.99; 95%CI, 1.06 to 3.72) or for age and BMI (odds ratio, 1.92; 95%CI, 1.02 to 3.61). Discussion: A graded positive relationship between plasma leptin levels and BP was observed in this sample of untreated male adults. This association was independent of age, BMI, abdominal adiposity, and fasting plasma insulin. Moreover, elevated plasma leptin concentrations were associated with greater probability of hypertension, again independently of potential confounders.