Biomedical subjects

Carole Hart

Publications and source records attributed to Carole Hart.

8 recordsLinked to original sources

PubMed2005

Is subjective social status a more important determinant of health than objective social status? Evidence from a prospective observational study of Scottish men.

Both subjective and objective measures of lower social position have been shown to be associated with poorer health. A psychosocial, as opposed to material, aetiology of health inequalities predicts that subjective social status should be a stronger determinant of health than objective social position. In a workplace based prospective study of 5232 Scottish men recruited in the early 1970s and followed up for 25 years we examined the association between objective and subjective indices of social position, perceived psychological stress, cardiovascular disease risk factors and subsequent health. Lower social position, whether indexed by more objective or more subjective measures, was consistently associated with an adverse profile of established disease risk factors. Perceived stress showed the opposite association. The main subjective social position measure used was based on individual perceptions of workplace status (as well as their actual occupation, men were asked whether they saw themselves as "employees", "foremen", or "managers"). Compared to foremen, employees had a small and imprecisely estimated increased risk of all cause mortality, whereas managers had a more marked decreased risk. The strongest predictors of increased mortality were father's manual as opposed to non-manual occupation; lack of car access and shorter stature, (an indicator of material deprivation in childhood). In the fully adjusted analyses, perceived work-place status was only weakly associated with mortality. In this population it appears that objective material circumstances, particularly in early life, are a more important determinant of health than perceptions of relative status. Conversely, higher perceived stress was not associated with poorer health, presumably because, in this population, higher stress was not associated with material disadvantage. Together these findings suggest that, rather than targeting perceptions of disadvantage and associated negative emotions, interventions to reduce health inequalities should aim to reduce objective material disadvantage, particularly that experienced in early life.

Administrative Personnel↗

PubMed2003

Frequent job change and associated health.

The contemporary labour market is widely regarded as having become more "flexible". It is proposed that such flexibility is a characteristic of employment histories which will have effects on psychosocial status, health-related behaviour, and physical health. Recent increases in flexibility are unlikely to have accumulated over sufficient portions of individual employment histories for any effect on health to be apparent, but a "preview" of these effects may be gained from study of older cohorts. This cross-sectional study is based on data collected in the early 1970s from 5399 men and 945 women in paid work, recruited from 27 workplaces in the west of Scotland. A flexible employment history was defined as one encompassing a large number of changes between jobs. Perceived psychological stress, health behaviour (cigarette smoking, alcohol consumption, physical exercise), physiology (diastolic blood pressure, body mass index, forced expiratory volume, plasma cholesterol concentration) and current health (angina, myocardial ischaemia) were assessed. Those individuals who reported having experienced frequent job change were more likely to smoke, consume greater amounts of alcohol, and perhaps to exercise less. Similar findings were observed in both males and females, and for different age and socio-economic groups. We found no suggestion that this association was due to higher levels of psychosocial stress, and the expected consequences for health were not observed. Interpretation of these findings is not straightforward due to an uncertain direction of causation, and a possible selection bias. However, the observed relationship between frequent job changing and a higher incidence of health risk behaviours, in the absence of a relationship with poorer health, invites further research.

Adult↗

PubMed2003

Self-reported stress and subsequent hospital admissions as a result of hypertension, varicose veins and haemorrhoids.

BACKGROUND: This study examines a cohort in which individuals of privileged socio-economic position report greater psychological stress. We have previously shown in this cohort that stress is unrelated to coronary heart disease as measured by hospital discharge diagnosis and cause-specific death. In contrast, stress and hospitalization for cardiovascular conditions not requiring mandatory admission were associated. We hypothesized that psychosocial factors, in particular reporting tendency, are the likely mediator of this association, and the present study considers this further. METHODS: A total of 5,596 men underwent a health screening during which they completed the Reeder Stress Inventory. Details of hospital admissions were retrieved from the Scottish Morbidity Records over a 21 year follow-up. Relationships between stress and admission were evaluated using proportional hazards regression. RESULTS: Compared with low stress, reported high stress was found to be associated with increased numbers of admissions for each of three most common cardiovascular causes of non-mandatory admission: adjusted hazard ratios were 3.43 for essential hypertension (95 per cent confidence interval (CI) 1.36-8.65), 1.91 for lower limb varicose veins (95 per cent CI 1.12-3.24), and 2.01 for haemorrhoids (95 per cent CI 1.16-3.51). Stress and blood pressure at baseline were not associated. CONCLUSION: The association between stress and admissions as a result of hypertension appears unlikely to be mediated by blood pressure. More likely is a mechanism based upon the reporting of symptoms, or the recording of discharge diagnoses. There is no obvious medical explanation for associations between stress and hospitalization as a result of varicose veins or haemorrhoids, and again it is likely that psychosocial factors provide the mechanism.

Adult↗

PubMed2002

Psychological stress and cardiovascular disease: empirical demonstration of bias in a prospective observational study of Scottish men.

OBJECTIVES: To examine the association between self perceived psychological stress and cardiovascular disease in a population where stress was not associated with social disadvantage. DESIGN: Prospective observational study with follow up of 21 years and repeat screening of half the cohort 5 years from baseline. Measures included perceived psychological stress, coronary risk factors, self reported angina, and ischaemia detected by electrocardiography. SETTING: 27 workplaces in Scotland. PARTICIPANTS: 5606 men (mean age 48 years) at first screening and 2623 men at second screening with complete data on all measures. MAIN OUTCOME MEASURES: Prevalence of angina and ischaemia at baseline, odds ratio for incident angina and ischaemia at second screening, rate ratios for cause specific hospital admission, and hazard ratios for cause specific mortality. RESULTS: Both prevalence and incidence of angina increased with increasing perceived stress (fully adjusted odds ratio for incident angina, high versus low stress 2.66, 95% confidence interval 1.61 to 4.41; P for trend <0.001). Prevalence and incidence of ischaemia showed weak trends in the opposite direction. High stress was associated with a higher rate of admissions to hospital generally and for admissions related to cardiovascular disease and psychiatric disorders (fully adjusted rate ratios for any general hospital admission 1.13, 1.01 to 1.27, cardiovascular disease 1.20, 1.00 to 1.45, and psychiatric disorders 2.34, 1.41 to 3.91). High stress was not associated with increased admission for coronary heart disease (1.00, 0.76-1.32) and showed an inverse relation with all cause mortality, mortality from cardiovascular disease, and mortality from coronary heart disease, that was attenuated by adjustment for occupational class (fully adjusted hazard ratio for all cause mortality 0.94, 0.81 to 1.11, cardiovascular mortality 0.91, 0.78 to 1.06, and mortality from coronary heart disease 0.98, 0.75 to 1.27). CONCLUSIONS: The relation between higher stress, angina, and some categories of hospital admissions probably resulted from the tendency of participants reporting higher stress to also report more symptoms. The lack of a corresponding relation with objective indices of heart disease suggests that these symptoms did not reflect physical disease. The data suggest that associations between psychosocial measures and disease outcomes reported from some other studies may be spurious.

Adult↗

PubMed2002

Change in job satisfaction, and its association with self-reported stress, cardiovascular risk factors and mortality.

Many studies have suggested that occupational stress may be related to the development of cardiovascular disease (CVD), independently of other known risk factors. Despite the recognition of job satisfaction as a particular form of stress, however, few studies have examined its association with CVD. Those studies that have explored the associations between job satisfaction and CVD risk factors, or job satisfaction and CVD mortality, have been largely cross-sectional in approach and report contradictory findings. This study revisits the associations between job satisfaction, self-reported stress. CVD risk factors and CVD mortality using longitudinal data from a cohort of working Scottish men and women recruited between 1970 and 1973. Approximately half of the cohort was screened for a second time, 4-7yr after the baseline examination. Job satisfaction at baseline was strongly associated with low or moderate perceived stress at 2nd screening. Men and women reporting decreased satisfaction in their jobs between baseline and 2nd screening tended to report moderate or high perceived stress at 2nd screening. Job satisfaction was associated with own occupational class in different directions for men and women. Men in the manual social classes reported more satisfaction with their jobs than their peers, whilst it was women in the non-manual social classes who reported more satisfaction with their jobs than their peers. There was limited evidence of an association between job satisfaction and age-adjusted CVD risk factors (diastolic blood pressure; blood cholesterol; body mass index; forced expiratory volume in 1st amount of recreational exercise undertaken; cigarette smoking and alcohol consumption) for men, after adjustment for occupational class, but there was no evidence of any association for women. There was also no evidence to suggest that men or women reporting job dissatisfaction on one occasion or on two occasions several years apart, had a significantly greater risk of mortality from CVD.

Adult↗

PubMed2002

Sleep duration and mortality: The effect of short or long sleep duration on cardiovascular and all-cause mortality in working men and women.

BACKGROUND: There is evidence to suggest that insufficient sleep may have an adverse effect on physical and psychological health. Previous studies have reported that when adjusting for major risk factors for cardiovascular disease and a number of demographic and social variables, sleeping 7-8 h each night is associated with lower mortality. These studies, however, have excluded any consideration of stress, which is known to be related to a number of behavioural risk factors for disease and, like sleep, may influence neurochemical, hormonal and immunological functioning. METHODS: This study revisits the associations between sleep duration, cardiovascular disease risk factors and mortality, taking into account the perceived stress of individuals. The data come from a cohort of working Scottish men and women recruited between 1970 and 1973; approximately half of the cohort was screened for a second time, 4-7 years after the baseline examination. RESULTS: For both men and women, higher self-perceived stress was associated with a reduction in the hours of sleep reported. The pattern of mortality from all causes and the pattern of mortality from cardiovascular disease were consistent for both men and women. When sleep was measured on one occasion only, the risk of dying was reduced for men sleeping more than 8 h in every 24 h compared with those sleeping 7-8 h over the same period. This was after adjustment had been made for age, marital status, social class, cardiovascular risk factors and stress. The risk of dying was increased for women sleeping less than 7 h in every 24 h compared with those sleeping 7-8 h over the same period, after similar adjustments. When the data from the 1st and 2nd screening were considered longitudinally, both men and women who reported that they slept less than 7 h on both occasions that they were questioned, had a greater risk of dying from any cause than those who had reported sleeping 7-8 h at both screenings, after adjusting for age, marital status, social class and stress. CONCLUSIONS: Short sleep over a prolonged period may be associated with an increased risk of mortality: men and women who reported sleeping fewer than 7 h in 24 on two occasions between 4 and 7 years apart, had greater risk of dying from any cause over a 25 year period than those who reported sleeping 7-8 h on both occasions that they were questioned.

Journal Article↗

PubMed2002

Life-course socioeconomic and behavioral influences on cardiovascular disease mortality: the collaborative study.

OBJECTIVES: This study sought to demonstrate life-course influences on cardiovascular disease (CVD). METHODS: Data were derived from a prospective observational study in which the main outcome measure was death resulting from CVD. RESULTS: Combining 4 socioeconomic and behavioral risk indicators into a measure of life-course exposure produced 5 groups whose relative risks of CVD mortality ranged from 1.00 (the group with the most favorable life-course exposures) to 4.55 (the group with the least favorable life-course exposures). If the entire study population had had the CVD mortality risk of the subsample with the most favorable risk factor profile, approximately two thirds of cardiovascular deaths would not have occurred. CONCLUSIONS: CVD risk is influenced in a cumulative fashion by socioeconomic and behavioral factors acting throughout the life course.

Adult↗

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INTERHEART.

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Cross-Sectional Studies↗