Factors in the incidence of childlessness in Canada: an analysis of census data

Due to the difficulties involved in attempting to determine the relative proportion of involuntary childlessness and of voluntary childlessness in a given population, many investigators insist that the problem can only be examined in small-scale studies using intensive psychological interviewing techniques. A method for assessing the causes of childlessness in a population using census materials is described. If a distinction is made between psychological and physiological causes, instead of between intentional and unintentional causes, it is possible to assess the relative importance of these causes using large-scale investigation techniques. Physiological causes include all physiological conditions which produce sterility. Psychological causes include both psychosomatic infertility and the voluntary decision not to have children. The method involves using the minimum rate of childlessness in a population group known to place a high value on fertility as an estimate of the rate of physiological childlessness in the population. This estimate is then subtracted from the childlessness rate observed in other population groups in the same society in order to determine the degree of psychological childlessness in these other population groups. This method was used to assess the causes of childlessness in Canada. Census materials were used to determine the minimum rate of childlessness among rural women in Quebec. Since this group is primarily Catholic and places a high value on children, its childlessness rate provides an estimate of the proportion of sterile couples in the population. This rate was then subtracted from the childlessness rates for urban Canadian women, and the remainder provided an estimate of psychological childlessness among urban women. Age of marriage was controlled for since rural women married at younger ages. Study findings were 1) the proportion of childlessness among urban women declined over the years as 15.2% of the women over 45 years old were childless while only 10.8% of the women, aged 30-44, were childless; 2) the proportion of physiological childlessness declined from 6.6% among women over 45 years old to 4.6% among women, aged 30-44; and 3) approximately 50% of the cases of childlessness among urban women were due to psychological factors. These findings do not support the contentions of some investigators that 10% of the population is sterile and that psychological childlessness is rare. Study findings were presented in tabular form.     

Factors in the incidence of childlessness in Canada: An analysis of census data

The impact of the 1918 influenza pandemic on human fertility has been subject to significant scholarly debate. The current study characterizes the inter-temporal association between excess deaths during the pandemic and the subsequent birth deficit by identifying the length of time between these two phenomena using cross-correlations of monthly death and birth data from Taiwan from 1906 to 1943. The analysis demonstrates a strong and negative correlation between deaths (d) at time t and births (b) at time t + 9 (r_db(9) = –0.68, p < .0001). In other words, a significant drop in births was observed nine months after pandemic mortality peaked. The findings suggest that the 1918 influenza pandemic impacted subsequent births primarily through the mechanism of reduced conceptions and embryonic loss during the first month of pregnancy rather than through late-first-trimester embryonic loss.     

Voluntary childlessness among American men and women in the late 1980's.

Most studies of childlessness in the United States have relied on unrepresentative, opportunistic samples collected in a variety of ways. Thus, the relationship of various correlates to childlessness is not well known. Some studies have focused on demographic variables, but have not examined attitudinal factors associated with childlessness--something the opportunistic samples have been able to do. In this paper we examine both attitudinal and demographic factors associated with childlessness in the United States. The data used in this paper are from the National Survey of Families and Households collected in 1987 and 1988. The data set includes both demographic data, perceived advantages and disadvantages of having children, and attitudinal data about related social issues. Overall, the rate of voluntary childlessness was not high. Only 3.5 per cent of the men and 2.8 per cent of the women reported that they were childless and did not expect to have children. Only one category of people (unmarried men and women over the age of 35) had rates that exceeded ten per cent. A combined variable of age and marital status was the best predictor of childlessness. A scale of reasons or justifications for having children was the next best predictor. In addition, attendance at religious services, number of hours the respondents desired to work and education (for women only) were related to childlessness. Those who scored highly on measures of support for traditional families and support of extended families also tended to have lower rates of childlessness. Occupational status, religious denomination, and race, on the other hand, were not significantly related to childlessness. Measures of gender equality, religious fundamentalism, and support for mothers working were also not related to childlessness.     

Socioeconomic status and the prevalence of fever in children under age five: evidence from four sub-Saharan African countries

ABSTRACT: BACKGROUND: The burden of fevers remains enormous in sub-Saharan Africa. While several efforts at reducing the burden of fever have been made at the macro level, the relationship between socioeconomic status and fever prevalence has been inconclusive at the household and individual levels. The purpose of this study was to examine how individual and household socioeconomic status influences the prevalence of fever among children under age five in four sub-Saharan African countries. METHODS: The study used data from the 2008 Demographic and Health Survey (DHS) from Ghana, Nigeria, Kenya and Sierra Leone with a total of 38,990 children below age five. A multi-level random effects logistic model was fitted to examine the socioeconomic factors that influence the prevalence of fever in the two weeks preceding the survey. Data from the four countries were also combined to estimate this relationship, after country-specific analysis. RESULTS: The results show that children from wealthier households reported lower prevalence of fever in Ghana, Nigeria and Kenya. Result from the combined dataset shows that children from wealthier households were less likely to report fever. In general, vaccination against fever-related diseases and the use of improved toilet facility reduces fever prevalence. The use of bed nets by children and mothers did not show consistent relationship across the countries. CONCLUSION: Poverty does not only influence prevalence of fever at the macro level as shown in other studies but also the individual and household levels. Policies directed towards preventing childhood fevers should take a close account of issues of poverty alleviation. There is also the need to ensure that prevention and treatment mechanisms directed towards fever related diseases (such as malaria, pneumonia, measles, diarrhoea, polio, tuberculosis etc) are accessible and effectively used.     

Socioeconomic status and incident type 2 diabetes mellitus: data from the Women's Health Study

Objectives

We prospectively examined whether socioeconomic status (SES) predicts incident type II diabetes (diabetes), a cardiovascular risk equivalent and burgeoning public health epidemic among women.

Methods

Participants include 23,992 women with Hb_A1c levels <6% and no CVD or diabetes at baseline followed from February 1993 to March 2007. SES was measured by education and income while diabetes was self-reported.

Results

Over 12.3 years of follow-up, 1,262 women developed diabetes. In age and race adjusted models, the relative risk of diabetes decreased with increasing education (<2 years of nursing, 2 to <4 years of nursing, bachelor''s degree, master''s degree, and doctorate: 1.0, 0.7 [95% Confidence Interval (CI), 0.6–0.8], 0.6 (95% CI, 0.5–0.7), 0.5 (95% CI, 0.4–0.6), 0.4 (95% CI, 0.3–0.5); p_trend<0.001). Adjustment for traditional and non-traditional cardiovascular risk factors attenuated this relationship (education: p_trend = 0.96). Similar associations were observed between income categories and diabetes.

Conclusion

Advanced education and increasing income were both inversely associated with incident diabetes even in this relatively well-educated cohort. This relationship was largely explained by behavioral factors, particularly body mass index.     

Reinstitutionalisation in mental health care: comparison of data on service provision from six European countries

Objective To establish whether reinstitutionalisation is occurring in mental health care and, if so, with what variations between western European countries.Design Comparison of data on changes in service provision.Setting Six European countries with different traditions of mental health care that have all experienced deinstitutionalisation since the 1970s—England, Germany, Italy, the Netherlands, Spain, and Sweden.Outcome measures Changes in the number of forensic hospital beds, involuntary hospital admissions, places in supported housing, general psychiatric hospital beds, and general prison population between 1990-1 and 2002-3.Results Forensic beds and places in supported housing have increased in all countries, whereas changes in involuntary hospital admissions have been inconsistent. The number of psychiatric hospital beds has been reduced in five countries, but only in two countries does this reduction outweigh the number of additional places in forensic institutions and supported housing. The general prison population has substantially increased in all countries.Conclusions Reinstitutionalisation is taking place in European countries with different traditions of health care, although with significant variation between the six countries studied. The precise reasons for the phenomenon remain unclear. General attitudes to risk containment in a society, as indicated by the size of the prison population, may be more important than changing morbidity and new methods of mental healthcare delivery.     

Discrepancies between men and women in reporting number of sexual partners: A summary from four countries

Abstract

Men and women in national surveys from four countries, the United States, Canada, Great Britain, and Norway, give mutually inconsistent reports of numbers of opposite‐gender sexual partners. In all cases the number of female partners reported by men exceeds the number of male partners reported by women. Gender difference in reporting bias seems to be the most plausible explanation for the discrepancies.     

Discrepancies between men and women in reporting number of sexual partners: a summary from four countries.

Men and women in national surveys from four countries, the United States, Canada, Great Britain, and Norway, give mutually inconsistent reports of numbers of opposite-gender sexual partners. In all cases the number of female partners reported by men exceeds the number of male partners reported by women. Gender difference in reporting bias seems to be the most plausible explanation for the discrepancies.     

Socioeconomic status, height, and obesity in children

The substantial increase in the prevalence of child obesity over recent decades and its association with a number of negative health and economic outcomes suggests its strong potential as an influence on the lifecourse development of health and productivity. This paper evaluates interactive effects between family socioeconomic status (SES) and height on child obesity in the United States. Using the 1999-2006 National Health and Nutrition Examination Surveys (NHANES), the results of this paper confirm previous findings that taller children exhibit greater propensity towards obesity as measured by body mass index (BMI) and that obesity is inversely related to family SES as measured by poverty status. The analysis adds to the existing literature by showing that the magnitude of the SES-obesity association is larger in taller children. Age and sex patterns are evaluated that suggest the SES-height interaction persists through childhood and adolescence in males but is only evident in females during adolescence. Interaction effects are also shown to be most evident in white males and Hispanic females. Policy implications are discussed and directions for future work are suggested.     

Consumer evaluation of meat quality from barrows,immunocastrates and boars in six countries

The practice of surgical castration of piglets and its alternatives is still under debate. Production of boars may impair meat quality due to boar taint and reduced tenderness compared to meat from surgically castrated male pigs, while immunocastration reduces boar taint and may improve meat quality but seems to be less accepted by the pig chain. In this study, we aimed to evaluate the consumer’s sensory appreciation of meat from barrows (BAs), immunocastrates (ICs) and boars (BOs) in six European countries, taking into account the selection of tainted carcass and consumers’ appreciation of boar taint. Loin chops of 30 BAs, 30 ICs and 30 BOs were evaluated by 752 consumers in six countries: Belgium, Czech Republic, Poland, Portugal, Romania and Spain. Consumers rated odour, flavour, tenderness, juiciness, overall liking and willingness to buy and sensitivity to and liking of androstenone (AND) and liking of skatole (SKA) was also tested. In each of the six countries, consumers liked the odour of the BO samples less than that of BA, and IC intermediate. For flavour, tenderness, juiciness, overall liking and willingness to buy, liking scores given by the Czech, Polish and Portuguese consumers significantly differed between the BA, BO and IC. Willingness to buy was highest for BA by Czech and Polish consumers and for BA and IC by Portuguese consumers. The frequency of the negative check all terms that apply terms also differed, with a higher frequency of disgusting for BO compared to BA and IC and of off-flavour, irritating, manure, sweat, disappointing compared to BA, and intermediate for IC. 31% of the consumers disliked the odour of AND (NEG_AND), and 36% of them were not sensitive; in contrast, 77% of the consumers disliked SKA (NEG_SKA). The decrease in flavour liking score for BO compared to BA and IC was more outspoken by the NEG_AND consumer, while NEG_SKA consumers gave an overall lower liking score independent of the type of male pig. The results of this study indicate that IC can be a valid alternative for surgical castration.     

Job strain and alcohol intake: a collaborative meta-analysis of individual-participant data from 140,000 men and women

Background

The relationship between work-related stress and alcohol intake is uncertain. In order to add to the thus far inconsistent evidence from relatively small studies, we conducted individual-participant meta-analyses of the association between work-related stress (operationalised as self-reported job strain) and alcohol intake.

Methodology and Principal Findings

We analysed cross-sectional data from 12 European studies (n = 142 140) and longitudinal data from four studies (n = 48 646). Job strain and alcohol intake were self-reported. Job strain was analysed as a binary variable (strain vs. no strain). Alcohol intake was harmonised into the following categories: none, moderate (women: 1–14, men: 1–21 drinks/week), intermediate (women: 15–20, men: 22–27 drinks/week) and heavy (women: >20, men: >27 drinks/week). Cross-sectional associations were modelled using logistic regression and the results pooled in random effects meta-analyses. Longitudinal associations were examined using mixed effects logistic and modified Poisson regression. Compared to moderate drinkers, non-drinkers and (random effects odds ratio (OR): 1.10, 95% CI: 1.05, 1.14) and heavy drinkers (OR: 1.12, 95% CI: 1.00, 1.26) had higher odds of job strain. Intermediate drinkers, on the other hand, had lower odds of job strain (OR: 0.92, 95% CI: 0.86, 0.99). We found no clear evidence for longitudinal associations between job strain and alcohol intake.

Conclusions

Our findings suggest that compared to moderate drinkers, non-drinkers and heavy drinkers are more likely and intermediate drinkers less likely to report work-related stress.     

Socioeconomic inequality in smoking in low-income and middle-income countries: results from the world health survey

Objectives

To assess the magnitude and pattern of socioeconomic inequality in current smoking in low and middle income countries.

Methods

We used data from the World Health Survey [WHS] in 48 low-income and middle-income countries to estimate the crude prevalence of current smoking according to household wealth quintile. A Poisson regression model with a robust variance was used to generate the Relative Index of Inequality [RII] according to wealth within each of the countries studied.

Results

In males, smoking was disproportionately prevalent in the poor in the majority of countries. In numerous countries the poorest men were over 2.5 times more likely to smoke than the richest men. Socioeconomic inequality in women was more varied showing patterns of both pro-rich and pro-poor inequality. In 20 countries pro-rich relative socioeconomic inequality was statistically significant: the poorest women had a higher prevalence of smoking compared to the richest women. Conversely, in 9 countries women in the richest population groups had a statistically significant greater risk of smoking compared to the poorest groups.

Conclusion

Both the pattern and magnitude of relative inequality may vary greatly between countries. Prevention measures should address the specific pattern of smoking inequality observed within a population.