Endpiece: Three different talks

ObjectivesTo characterise the information needs of family doctors by collecting the questions they asked about patient care during consultations and to classify these in ways that would be useful to developers of knowledge bases.DesignObservational study in which investigators visited doctors for two half days and collected their questions. Taxonomies were developed to characterise the clinical topic and generic type of information sought for each question.SettingEastern Iowa.ParticipantsRandom sample of 103 family doctors.ResultsParticipants asked a total of 1101 questions. Questions about drug prescribing, obstetrics and gynaecology, and adult infectious disease were most common and comprised 36% of all questions. The taxonomy of generic questions included 69 categories; the three most common types, comprising 24% of all questions, were “What is the cause of symptom X?” “What is the dose of drug X?” and “How should I manage disease or finding X?” Answers to most questions (702, 64%) were not immediately pursued, but, of those pursued, most (318, 80%) were answered. Doctors spent an average of less than 2 minutes pursuing an answer, and they used readily available print and human resources. Only two questions led to a formal literature search.ConclusionsFamily doctors in this study did not pursue answers to most of their questions. Questions about patient care can be organised into a limited number of generic types, which could help guide the efforts of knowledge base developers.

Key messages

• Questions that doctors have about the care of their patients could help guide the content of medical information sources and medical training
• In this study of US family doctors, participants frequently had questions about patient care but did not pursue answers to most questions (64%)
• On average, participants spent less than 2 minutes seeking an answer to a question
• The most common resources used to answer questions included textbooks and colleagues; formal literature searches were rarely performed
• The most common generic questions were “What is the cause of symptom X?” “What is the dose of drug X?” and “How should I manage disease or finding X?”

     

The Norwegian naturalistic treatment study of depression in general practice (NORDEP)-I: randomised double blind study

ObjectiveTo evaluate the efficacy of emotional support and counselling combined with placebo or antidepressants with single or dual mechanism of action in the treatment of depression in primary care.DesignRandomised double blind study.SettingSeveral locations in Norway.Subjects372 patients with depression.Results Intention to treat analyses showed 47% remission in patients randomised to placebo compared with 61% remission in patients randomised to sertraline (odds ratio 0.56, 95% confidence interval 0.33 to 0.96) and 54% in patients randomised to mianserin (0.75, 0.44 to 1.27). Women responded better than men (1.86, 1.17 to 2.96). Subgroup analyses showed that subjects with recurrent depression (n=273) responded more frequently to sertraline than to placebo (0.43, 0.23 to 0.82) than those having their first episode of depression (1.18, 0.39 to 3.61). Statistically significant interactions between type of drug treatment and history of depression were not shown by logistic regression.Conclusion The combination of active drug and simple psychological treatment (counselling, emotional support, and close follow up over a 24 week period) was more effective than simple psychological treatment alone, in particular for those with recurrent depression. Overall, women may benefit more than men. If confirmed in future studies, the findings should lead to more differentiated treatment guidelines for depression in primary care.

Key messages

• The effectiveness of simple psychological treatment and active drug provided by general practitioners is comparable to treatment results reported by psychiatrists and clinical psychologists
• Treatment benefits women more than men
• There may be differences in response to treatment depending on the nature of depression
• A 6 month treatment period is necessary to evaluate effectiveness of treatments for depression in general practice
• The development of more differentiated treatment guidelines for depression in primary care is needed

     

Career destinations seven years on among doctors who qualified in the United Kingdom in 1988: postal questionnaire survey

ObjectiveTo report the career choices and career destinations in 1995 of doctors who qualified in the United Kingdom in 1988.DesignPostal questionnaire.SettingUnited Kingdom.SubjectsAll doctors who qualified in the United Kingdom in 1988.ResultsOf the 3724 doctors who were sent questionnaires, eight had died and three declined to participate. Of the remaining 3713 doctors, 2885 (77.7%) replied. 16.9% (608/3593; 95% confidence interval 16.1% to 17.8%) of all 1988 qualifiers from medical schools in Great Britain were not working in the NHS in Great Britain in 1995 compared with 17.0% (624/3674; 16.1% to 17.9%) of the 1983 cohort in 1990. The proportion of doctors working in general practice was lower than in previous cohorts. The percentage of women in general practice (44.3% (528/1192)) substantially exceeded that of men (33.1% (443/1340)). 53% (276/522) of the women in general practice and 20% (98/490) of the women in hospital specialties worked part time.ConclusionsConcerns about recruitment difficulties in general practice are justified. Women are now entering general practice in greater numbers than men. There is no evidence of a greater exodus from the NHS from the 1988 qualifiers than from earlier cohorts.

Key messages

• This study reports the career progress to September 1995 of doctors who qualified in 1988
• Loss from the British NHS, at 16.9% (95% confidence interval, 16.1% to 17.8%), was no greater than among earlier qualifiers at the same time after qualification
• The proportion of doctors working in general practice (38%) was lower than in earlier cohorts studied
• In this generation of doctors, women in general practice now outnumber men
• Fifty three per cent of the women in general practice and 20% of the women in hospital specialties were working on a part time or flexible basis

     

Career pathways and destinations 18 years on among doctors who qualified in the United Kingdom in 1977: postal questionnaire survey

ObjectiveTo determine the career destinations, by 1995, of doctors who qualified in the United Kingdom in 1977; the relation between their destinations and early career choice; and their intentions regarding retirement age.DesignPostal questionnaire.SettingUnited Kingdom.SubjectsAll (n=3135) medical qualifiers of 1977.ResultsAfter about 12 years the distribution of respondents by type of employment, and, for women, the percentage of doctors in part time rather than full time medical work, had stabilised. Of all 2997 qualifiers from medical schools in Great Britain, 2399 (80.0% (95% confidence interval 79.5% to 80.6%)) were working in medicine in the NHS in Great Britain 18 years after qualifying. Almost half the women (318/656) worked in the NHS part time. Of 1714 doctors in the NHS, 1125 intended to work in the NHS until normal retirement age, 392 did not, and 197 were undecided. Of the 1548 doctors for whom we had sufficient information, career destinations at 18 years matched the choices made at 1, 3, and 5 years in 58.9% (912), 78.2% (1211), and 86.6% (1341) of cases respectively.ConclusionsPlanning for the medical workforce needs to be supported by information about doctors’ career plans, destinations, and whole time equivalent years of work. Postgraduate training needs to take account of doctors’ eventual choice of specialty (and the timing of this choice).

Key messages

• A large scale national study in the United Kingdom followed doctors from qualification to mid-career and beyond
• Most doctors had made their choice of eventual career—at least in terms of broadly defined specialty—within 5 years of qualifying
• Eighteen years on, 80% of the doctors were working in the NHS and nearly half of women doctors were working part time
• Almost a quarter of NHS doctors planned to retire early

     

Descriptive study of cooperative language in primary care consultations by male and female doctors

ObjectiveTo compare the use of some of the characteristics of male and female language by male and female primary care practitioners during consultations.DesignDoctors’ use of the language of dominance and support was explored by using concordancing software. Three areas were examined: mean number of words per consultation; relative frequency of question tags; and use of mitigated directives. The analysis of language associated with cooperative talk examines relevant words or phrases and their immediate context.Subjects26 male and 14 female doctors in general practice, in a total of 373 consecutive consultations.SettingWest Midlands.ResultsDoctors spoke significantly more words than patients, but the number of words spoken by male and female doctors did not differ significantly. Question tags were used far more frequently by doctors (P<0.001) than by patients or companions. Frequency of use was similar in male and female doctors, and the speech styles in consultation were similar.ConclusionsThese data show that male and female doctors use a speech style which is not gender specific, contrary to findings elsewhere; doctors consulted in an overtly non-directive, negotiated style, which is realised through suggestions and affective comments. This mode of communication is the core teaching of communication skills courses. These results suggest that men have more to learn to achieve competence as professional communicators.

Key messages

• Standard teaching on medical communication promotes a cooperative approach to doctor-patient interaction
• In everyday life, however, cooperative language is more typical of female speech style, and this suggests that male doctors may find it harder to develop appropriate consulting styles; in a sample of 373 consultations, male and female general practitioners used examples of cooperative language equally
• Language based study of doctor-patient interaction can deepen understanding and provide useful insights

     

Reanalysis of epidemiological evidence on lung cancer and passive smoking

ObjectiveTo assess the epidemiological evidence for an increase in the risk of lung cancer resulting from exposure to environmental tobacco smoke.DesignReanalysis of 37 published epidemiological studies previously included in a meta-analysis allowing for the possibility of publication bias.ResultsIf it is assumed that all studies that have ever been carried out are included, or that those selected for review are truly representative of all such studies, then the estimated excess risk of lung cancer is 24%, as previously reported (95% confidence interval 13% to 36%, P<0.001). However, a significant correlation between study outcome and study size suggests the presence of publication bias. Adjustment for such bias implies that the risk has been overestimated. For example, if only 60% of studies have been included, the estimate of excess risk falls from 24% to 15%.ConclusionA modest degree of publication bias leads to a substantial reduction in the relative risk and to a weaker level of significance, suggesting that the published estimate of the increased risk of lung cancer associated with environmental tobacco smoke needs to be interpreted with caution.

Key messages

• A systematic review of epidemiological studies on passive smoking estimated the increased risk of lung cancer as 24%
• There is clear evidence of publication bias in these studies
• Reanalysis of the data allowing for the possibility of publication bias substantially lowers the estimate of relative risk

     

β Blockade after myocardial infarction: systematic review and meta regression analysis

ObjectivesTo assess the effectiveness of β blockers in short term treatment for acute myocardial infarction and in longer term secondary prevention; to examine predictive factors that may influence outcome and therefore choice of drug; and to examine the clinical importance of the results in the light of current treatment.DesignSystematic review of randomised controlled trials.SettingRandomised controlled trials.SubjectsPatients with acute or past myocardial infarction.Interventionβ Blockers compared with control.Mainoutcome measures All cause mortality and non-fatal reinfarction.ResultsOverall, 5477 of 54 234 patients (10.1%) randomised to β blockers or control died. We identified a 23% reduction in the odds of death in long term trials (95% confidence interval 15% to 31%), but only a 4% reduction in the odds of death in short term trials (−8% to 15%). Meta regression in long term trials did not identify a significant reduction in effectiveness in drugs with cardioselectivity but did identify a near significant trend towards decreased benefit in drugs with intrinsic sympathomimetic activity. Most evidence is available for propranolol, timolol, and metoprolol. In long term trials, the number needed to treat for 2 years to avoid a death is 42, which compares favourably with other treatments for patients with acute or past myocardial infarction.Conclusionsβ Blockers are effective in long term secondary prevention after myocardial infarction, but they are underused in such cases and lead to avoidable mortality and morbidity.

Key messages

• The first randomised trials of β blockade in secondary prevention after myocardial infarction were published in the 1960s
• β blockers were once heralded as a major advance, but their use for secondary prevention has declined in recent years
• Firm evidence shows that long term β blockade remains an effective and well tolerated treatment that reduces mortality and morbidity in unselected patients after myocardial infarction
• The benefits from β blockade compare favourably with other drug treatments for this patient group
• Most evidence is for propranolol, timolol, and metoprolol, whereas atenolol, which is commonly used, is inadequately evaluated for long term use

     

Preventing injuries in children: cluster randomised controlled trial in primary care

ObjectiveTo assess the effectiveness of safety advice at child health surveillance consultations, provision of low cost safety equipment to families receiving means tested state benefits, home safety checks, and first aid training on frequency and severity of unintentional injuries in children at home.DesignCluster randomised controlled trial.Setting36 general practices in Nottingham.SubjectsAll children aged 3-12 months registered with participating practices.InterventionsA package of safety advice at child health surveillance consultations at 6-9, 12-15, and 18-24 months; provision of low cost safety equipment to families on means tested state benefits; and home safety checks and first aid training by health visitors.ResultsAt baseline, both groups had similar risk factors for injury, sociodemographic characteristics, safety practices, possession and use of safety equipment, knowledge and confidence in dealing with first aid, and perceptions of risk. No significant difference was found in frequency of at least one medically attended injury (odds ratio 0.97, 95% confidence interval 0.72 to 1.30), at least one attendance at an accident and emergency department for injury (1.02, 0.76 to 1.37), at least one primary care attendance for injury (0.75, 0.48 to 1.17), or at least one hospital admission for injury (0.69, 0.42 to 1.12). No significant difference in the secondary outcome measures was found between the intervention and control groups. ConclusionsThe intervention package was not effective in reducing the frequency of minor unintentional injuries in children at home, and larger trials are required to assess the effect on more severe injuries.

Key messages

• A package of activities for preventing injuries, as suggested by the Health of the Nation, delivered to families with children aged under 3 in primary care did not reduce the frequency of minor injuries
• The findings were consistent with a reduction in the frequency of more severe injuries, and larger primary care based studies are required to test this hypothesis
• The effectiveness of each of the interventions, delivered singly, is not known

     

Congenital toxoplasmosis: systematic review of evidence of efficacy of treatment in pregnancy

ObjectiveTo summarise the evidence that treating toxoplasmosis in pregnancy reduces the risk of congenital toxoplasma infection and improves infant outcomes.DesignSystematic review of studies comparing at least two concurrent groups of pregnant women with proved or likely acute toxoplasma infection in which treatments were compared with no treatment and outcomes in the children were reported.SubjectsStudies were identified from Medline (1966-97), Pascal (1990-7), Embase (1993-7), and Biological abstracts (1993-5) plus contact with experts in the field, including the European Research Network on Congenital Toxoplasmosis.ResultsOut of 2591 papers identified, nine met the inclusion criteria. There were no randomised comparisons, and control groups were generally not directly comparable with the treatment groups. Congenital infection was common in treated groups. five studies showed that treatment was effective and four that it was not.ConclusionIt is unclear whether antenatal treatment in women with presumed toxoplasmosis reduces congenital transmission of Toxoplasma gondii. Screening is expensive, so the effects of treatment and impact of screening programmes need to be evaluated. In countries where screening or treatment is not routine, these technologies should not be introduced outside carefully controlled trials.

Key messages

• Pregnant women in France and Austria are routinely screened for toxoplasmosis, and women negative for antibodies are followed up at regular intervals
• The value of antenatal toxoplasmosis screening programmes depends on safe treatments that reduce the risk of congenital disease
• This systematic review found no good comparative data measuring the potential harms and benefits of antiparasitic drugs used for presumed antenatal toxoplasma infection
• Most control groups were not comparable, and incidence of congenital infection was high in the intervention groups
• Countries considering introducing screening should do so only in the context of a controlled trial

     

Qualitative study of decisions about infant feeding among women in east end of London

ObjectiveTo improve understanding of how first time mothers who belong to a socioeconomic group with particularly low rates of breast feeding decide whether or not to initiate breast feeding.DesignQualitative semistructured interviews early in pregnancy and 6-10 weeks after birth.SettingWomen’s homes in east end of London.Subjects21 white, low income women expecting their first baby were interviewed mostly at home, often with their partner or a relative. Two focus groups were conducted.ResultsWomen who had regularly seen a relative or friend successfully breast feed and described this experience positively were more confident about and committed to breast feeding. They were also more likely to succeed. Exposure to breast feeding, however, could be either a positive or a negative influence on the decision to breast feed, depending on the context. Women who had seen breast feeding only by a stranger often described this as a negative influence, particularly if other people were present. All women knew that breast feeding has health benefits. Ownership of this knowledge, however, varied according to the woman’s experience of seeing breast feeding.ConclusionsThe decision to initiate breast feeding is influenced more by embodied knowledge gained from seeing breast feeding than by theoretical knowledge about its benefits. Breast feeding involves performing a practical skill, often with others present. The knowledge, confidence, and commitment necessary to breast feed may be more effectively gained through antenatal apprenticeship to a breastfeeding mother than from advice given in consultations or from books.

Key messages

• Women who have seen successful breast feeding as part of their daily lives and perceive this as a positive experience are more likely to initiate breast feeding
• Embodied knowledge gained through seeing breast feeding may be more influential than theoretical knowledge about the health benefits for women of lower social class
• Listening to pregnant women talking about breast feeding could help clinicians assess the relative importance of theoretical and embodied knowledge for each woman
• Women hoping to breast feed but with little exposure to breast feeding may benefit from an antenatal apprenticeship with a breastfeeding mother
• Ideally apprenticeship would be with a breastfeeding mother from her social network to minimise the potential barriers of embarrassment and lack of confidence with strangers

     

Symptomatic gastro-oesophageal reflux disease: double blind controlled study of intermittent treatment with omeprazole or ranitidine. The European Study Group

ObjectiveTo assess intermittent treatment over 12 months in patients with symptomatic gastro-oesophageal reflux disease.DesignRandomised, multicentre, double blind, controlled study. Patients with heartburn and normal endoscopy results or mild erosive changes received omeprazole 10 mg or 20 mg daily or ranitidine 150 mg twice daily for 2 weeks. Patients remaining symptomatic had omeprazole 10 mg or ranitidine dose doubled for another 2 weeks while omeprazole 20 mg was continued for 2 weeks. Patients who were symptomatic or mildly symptomatic were followed up for 12 months. Recurrences of moderate or severe heartburn during follow up were treated with the dose which was successful for initial symptom control.SettingHospitals and primary care practices between 1994 and 1996.Subjects677 patients with gastro-oesophageal reflux disease.Results704 patients were randomised, 677 were eligible for analyses; 318 reached the end of the study with intermittent treatment without recourse to maintenance antisecretory drugs. The median number of days off active treatment during follow up was 142 for the entire study (281 for the 526 patients who reached a treatment related end point). Thus, about half the patients did not require treatment for at least 6 months, and this was similar in all three treatment groups. According to outcome, 378 (72%) patients were in the best outcome ranks (no relapse or one (or more) relapse but in remission until 12 months); 630 (93%) had three or fewer relapses in the intermittent treatment phase. Omeprazole 20 mg provided faster relief of heartburn. The results were similar in patients with erosive and non-erosive disease.ConclusionsIntermittent treatment is effective in managing symptoms of heartburn in half of patients with uncomplicated gastro-oesophageal reflux disease. It is simple and applicable in general practice, where most patients are seen.

Key messages

• Symptomatic gastro-oesophageal disease can be managed successfully in half of patients with intermittent treatment with antisecretory drugs
• Omeprazole 20 mg once daily gives more rapid relief of symptoms than either omeprazole 10 mg once daily or ranitidine 150 mg twice daily. However, the choice of antisecretory drug has little effect on the overall outcome
• Relapses are relatively infrequent and can be managed with short courses of repeat treatment
• Starting intermittent treatment with omeprazole 20 mg once daily is more cost effective than a dose titration approach with omeprazole 10 mg once daily or ranitidine 150 mg twice daily
• An intermittent treatment strategy is simple and applicable in general practice, where most of these patients are seen

     

Meta-analysis of effects and side effects of low dosage tricyclic antidepressants in depression: systematic review

ObjectiveTo compare the effects and side effects of low dosage tricyclic antidepressants with placebo and with standard dosage tricyclics in acute phase treatment of depression.DesignSystematic review of randomised trials comparing low dosage tricyclics (⩽100 mg/day) with placebo or with standard dosage tricyclics in adults with depression.Results35 studies (2013 participants) compared low dosage tricyclics with placebo, and six studies (551 participants) compared low dosage tricyclics with standard dosage tricyclics. Low dosage tricyclics, mostly between 75 and 100 mg/day, were 1.65 (95% confidence interval 1.36 to 2.0) and 1.47 (1.12 to 1.94) times more likely than placebo to bring about response at 4 weeks and 6-8 weeks, respectively. Standard dosage tricyclics failed, however, to bring about more response but produced more dropouts due to side effects than low dosage tricyclics.ConclusionsTreatment of depression in adults with low dose tricyclics is justified. However, more rigorous studies are needed to definitively establish the relative benefits and harms of various dosages.

What is already known on this topic

Tricyclics are still prescribed as often as selective serotonin reuptake inhibitors and other newer antidepressants worldwideExperts have often claimed that clinicians prescribe tricyclics at less than adequate dosages

What this study adds

Tricyclics at dosages below the recommended range are more effective than placeboThey may or may not be as effective as standard dosage tricyclics but result in fewer dropouts due to side effectsThe minimum effective dosage and ranges for antidepressants has not been established—a simple set of numbers that every practising doctor and patient would want to know     

Quantitative systematic review of randomised controlled trials comparing antibiotic with placebo for acute cough in adults

Objectives: To assess whether antibiotic treatment for acute cough is effective and to measure the side effects of such treatment. Design: Quantitative systematic review of randomised placebo controlled trials. Data sources: Nine trials (8 published, 1 unpublished) retrieved from a systematic search (electronic databases, contact with authors, contact with drug manufacturers, reference lists); no restriction on language. Main outcome measures: Proportion of subjects with productive cough at follow up (7-11 days after consultation with general practitioner); proportion of subjects who had not improved clinically at follow up; proportion of subjects who reported side effects from taking antibiotic or placebo. Results: Eight trials contributed to the meta-analysis. Resolution of cough was not affected by antibiotic treatment (relative risk 0.85 (95% confidence interval 0.73 to 1.00)), neither was clinical improvement at re-examination (relative risk 0.62 (0.36 to 1.09)). The side effects of antibiotic were more common in the antibiotic group when compared to placebo (relative risk 1.51 (0.86 to 2.64)). Conclusions: Treatment with antibiotic does not affect the resolution of cough or alter the course of illness. The benefits of antibiotic treatment are marginal for most patients with acute cough and may be outweighed by the side effects of treatment.

Key messages

• Acute cough, with or without sputum, is a common reason for consulting a general practitioner
• Although antibiotic treatment is common for this condition, its likely benefits and side effects have not been measured
• This systematic review reports the outcome of nine randomised controlled trials that compared antibiotic with placebo in patients with acute cough
• Resolution of cough and clinical improvement at follow up was no different in the two groups
• The benefits of antibiotic treatment seem to be marginal for most patients with acute cough and may be outweighed by the side effects of treatment

     

Cobalt derivatives as promising therapeutic agents

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Highlights► Cobalt is a versatile transition metal for drug development. ► The tunable physicochemical properties can be exploited by understanding the mechanism of bioactive cobalt complexes. ► The review highlights examples of mechanistic investigations of cobalt therapeutics.     

Explaining differences in English hospital death rates using routinely collected data

ObjectivesTo ascertain hospital inpatient mortality in England and to determine which factors best explain variation in standardised hospital death ratios.DesignWeighted linear regression analysis of routinely collected data over four years, with hospital standardised mortality ratios as the dependent variable.SettingEngland.SubjectsEight million discharges from NHS hospitals when the primary diagnosis was one of the diagnoses accounting for 80% of inpatient deaths.ResultsThe four year crude death rates varied across hospitals from 3.4% to 13.6% (average for England 8.5%), and standardised hospital mortality ratios ranged from 53 to 137 (average for England 100). The percentage of cases that were emergency admissions (60% of total hospital admissions) was the best predictor of this variation in mortality, with the ratio of hospital doctors to beds and general practitioners to head of population the next best predictors. When analyses were restricted to emergency admissions (which covered 93% of all patient deaths analysed) number of doctors per bed was the best predictor.ConclusionAnalysis of hospital episode statistics reveals wide variation in standardised hospital mortality ratios in England. The percentage of total admissions classified as emergencies is the most powerful predictor of variation in mortality. The ratios of doctors to head of population served, both in hospital and in general practice, seem to be critical determinants of standardised hospital death rates; the higher these ratios, the lower the death rates in both cases.

Key messages

• Between 1991-2 and 1994-5 average standardised hospital mortality ratios in English hospitals reduced by 2.6% annually, but the ratios varied more than twofold among the hospitals
• After adjustment for the percentage of emergency cases and for age, sex, and primary diagnosis, the best predictors of standardised hospital death rates were the numbers of hospital doctors per bed and of general practitioners per head of population in the localities from which hospital admissions were drawn
• England has one of the lowest number of physicians per head of population of the OECD countries, being only 59% of the OECD average
• It is now possible to control for factors outside the direct influence of hospital policy and thereby produce a more valid measure of hospital quality of care

     

Improving the health behaviours of elderly people: randomised controlled trial of a general practice education programme

ObjectivesTo establish the effect of an educational intervention for general practitioners on the health behaviours and wellbeing of elderly patients.DesignRandomised controlled trial with 1 year follow up.SettingMetropolitan general practices in Melbourne, Australia.Subjects42 general practitioners and 267 of their patients aged over 65 years.InterventionEducational and clinical practice audit programme for general practitioners on health promotion for elderly people.ResultsPatients in the intervention group had increased (a) walking by an average of 88 minutes per fortnight, (b) frequency of pleasurable activities, and (c) self rated health compared with the control group. No change was seen in drug usage, rate of influenza vaccination, functional status, or psychological wellbeing as a result of the intervention. Extrapolations of the known effect of these changes in behaviour suggest mortality could be reduced by 22% if activity was sustained for 5 years.ConclusionsEducation of the general practitioners had a positive effect on health outcomes of their elderly patients. General practitioners may have considerable public health impact in promotion of health for elderly patients.

Key messages

• Few educational interventions for doctors have shown benefit to the health of patients
• Elderly people were identified in the UK health initiatives as in need of additional attention, and levels of health protective behaviours were low in community surveys
• A multifaceted educational intervention for general practitioners was effective in improving walking behaviour, self rated health status, and the frequency of social contacts in elderly patients
• General practitioners are effective in improving health and health behaviours in their elderly patients

     

Metabolomics platforms for genome wide association studies—linking the genome to the metabolome

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Highlights► Genome-wide association studies with metabolomics constitute mGWAS. ► mGWAS provide insights into genetic and environmental impact on metabolic processes. ► We review essential strategies for mGWAS. ► Examples of mGWAS in large cohort studies are discussed.