The relation of social class to risk factors, rehabilitation, compliance and mortality in survivors of acute coronary heart disease

Effect of Socioeconomic Status on Propensity to Change Risk Behaviors Following Myocardial Infarction: Implications for Healthy Lifestyle Medicine

Failure to change risk behaviors following myocardial infarction (MI) increases the likelihood of recurrent MI and death. Lower-socioeconomic status (SES) patients are more likely to engage in high-risk behaviors prior to MI. Less well known is whether propensity to change risk behaviors after MI also varies inversely with SES. We performed a systematized literature review addressing changes in risk behaviors following MI as a function of SES. 2160 abstracts were reviewed and 44 met eligibility criteria. Behaviors included smoking cessation, cardiac rehabilitation (CR), medication adherence, diet, and physical activity (PA). For each behavior, lower-SES patients were less likely to change after MI. Overall, lower-SES patients were 2 to 4 times less likely to make needed behavior changes (OR's 0.25-0.56). Lower-SES populations are less successful at changing risk behaviors post-MI. Increasing their participation in CR/secondary prevention programs, which address multiple risk behaviors, including increasing PA and exercise, should be a priority of healthy lifestyle medicine (HLM).

Does job satisfaction predict early return to work after coronary angioplasty or cardiac surgery?

PURPOSE

Few studies have analyzed the relationship between job satisfaction and return to work (RTW) in cardiac patients. The aim of this paper was to investigate whether job satisfaction predicted early RTW in patients sick listed after cardiac invasive procedures.

METHODS

A 6-month prospective study was carried out in a sample of 83 patients in working age who had recently been treated with angioplasty or cardiac surgery. Job satisfaction was measured using the scale from the Occupational Stress Indicator during cardiac rehabilitation. Time to RTW was assessed at the 6-month occupational physician examination. Logistic regression analyses were used to study the association between job satisfaction at baseline and early RTW at follow-up, adjusted for socio-demographic, medical (type of cardiac intervention, ejection fraction) and psychological (depression, locus of control, illness perception) factors.

RESULTS

Participants with high job satisfaction were more likely to return early to work, with an odds ratio (OR) of 5.92 (95 % CI, 1.69-20.73) in the most-adjusted model, compared to participants with low job satisfaction. Satisfaction with organizational processes was the job satisfaction component most strongly associated with early RTW (OR, 4.30; 95 % CI, 1.21-15.03).

CONCLUSIONS

To the best of our knowledge, this is the first prospective study that investigated whether job satisfaction predicts time to RTW after cardiac interventions. The results suggested that when patients are satisfied with their job and positively perceived their work environment, they will be more likely to early RTW, independently of socio-demographic, medical and psychological factors.

Socioeconomic inequalities in the employment impact of ischaemic heart disease: a longitudinal record linkage study in Sweden

Aims: Low socioeconomic status is associated with increased risk of ischaemic heart disease (IHD) in many European and North American countries. We hypothesize that the adverse impact of having IHD may also be heavier in lower socioeconomic groups and may constitute a mechanism for generating or reinforcing social inequalities in health. Methods: Population registers of the 1.8 million residents of Stockholm County were used to assess the employment consequences over five years of having a diagnosis of IHD (600 cases) requiring hospital admission in 1996. We calculated annual age-standardized employment rates and age-adjusted odds of leaving employment during 1997—2001 by social class for in-patients and the general population. Results: Men and women who had an in-patient episode for IHD had lower age-standardized employment rates than the general population. Following hospital admission, the likelihood of patients with IHD leaving employment increased annually, and by 2001 their adjusted odds were almost four times greater (odds ratio 3.95, 95% confidence interval 3.23—4.83) than for the general population. The impact of IHD on employment was more severe with decreasing social class and patients employed in low-skilled manual occupations were significantly more likely to lose employment than professional workers with the same diagnosis. Within each social class patients had significantly higher odds of leaving employment than the general population. Conclusions: In spite of its progressive employment and rehabilitation policies, our study revealed considerable and socially differentiated employment consequences of IHD in Sweden. More account needs to be taken of such differential impact in health and social policy development.

Are there socioeconomic differences in myocardial infarction event rates and fatality among patients with angina pectoris?

BACKGROUND

Systematic socioeconomic differences in mortality have been reported among myocardial infarction (MI) patients in many countries, including Finland. The findings have been similar irrespective of country, study period, age group, or length of follow up, but few studies have examined the disparities among other groups of coronary patients. This study examined whether similar socioeconomic differences in outcomes exist among patients with angina pectoris (AP).

METHODS

The data were based on individual register linkages among a population based 40-79 year-old cohort of 61,350 patients with incident AP or MI during 1995-1998 in Finland. Two year coronary heart disease mortality and one year MI incidence and its 28 day case fatality was studied among AP patients using Cox's and logistic regression analysis, and the results compared with those of the MI patient group.

RESULTS

A clear socioeconomic pattern was found in two year coronary heart disease (CHD) mortality: the lower the socioeconomic group the higher the mortality risk. The socioeconomic patterning of mortality was similar to that found among MI patients. Controlling for comorbidity or disease severity did not change the results. Among AP patients a similar pattern was also found in MI incidence during the follow up, but no systematic socioeconomic differences were detected in its 28 day case fatality.

CONCLUSIONS

Socioeconomic differences in CHD outcomes also exist among angina patients. These results suggest that targeted measures of secondary prevention are needed among CHD patients with lower socioeconomic status to reduce socioeconomic disparities in fatal and non-fatal coronary events.

Long-term results of a three-week intensive cardiac out-patient rehabilitation program in motivated patients with low social status

The short-term benefits of cardiac rehabilitation (CR) are well established. In contrast, well-documented long-term results are rare. The objective of this longitudinal multi-centre observational study was to examine the effects of intensive out-patient CR in a larger patient cohort, especially for patients with low social status. We present the final results 24 months after CR.

METHODS

The study group of 327 patients (288 men, 39 women, aged 56.0+/-10.8 years, coronary artery disease in 295, other cardiac diseases in 32) participated in a 3- week CR programme followed by clinical re-evaluations 6 (III), 12 (IV) an 24 (V) months later.

RESULTS

The improvement in mean maximal performance of 100.5+/-31.4 to 123.1+/-36.2 W (p<0.01) achieved during CR was further improved to 128.7+/-40.9 W (p < 0,01) after 24 months. Of the patients, 61.2% reported regular physical activity during the 24 months of the study. The lipid management achieved by CR was maintained over 24 month. At I 65%, at II 84.4% and at V 82.4% of the patients with coronary artery disease (CAD) were undergoing lipid lowering therapy. BMI increased from 26.8+/-3.0 to 27.6+/-3.6 kg/m2 (p < 0.01) during follow-up. Of the patients, 23.2% were active smokers at V. Cardiovascular diagnosis remained unaltered in 74.3% of patients. The obtained results are interesting with respect to the social status of the patients since 68% were general laborers. The results confirm the long-term effectiveness of an intensive 3-week out-patient CR programme. Most of the benefits achieved by CR appear to be sustainable in this population for at least 2 years.

Work Resumption after Newly Diagnosed Coronary Heart Disease: Findings on the Importance of Paid Leave

OBJECTIVES

Studies have demonstrated the health benefits of work resumption for adults experiencing health problems, but there are important gaps in the research examining the factors that would help these individuals return to work. This study examines if working conditions predict whether women who experience angina or a myocardial infarction (MI) return to work.

METHODS

A sample of 289 employed women from the Nurses' Health Study was analyzed. Bivariate chi-square and logistic regression analyses were conducted to examine the relationship between working conditions and the likelihood of returning to work after experiencing an MI or angina.

RESULTS

Seventy-nine percent of women returned to work after experiencing an MI or angina. Women who had paid leave were substantially more likely to return to work after an MI or angina episode than women without this benefit (adjusted odds ratio [OR] 2.7, p = 0.04).

CONCLUSIONS

Public and corporate policies to promote paid leave for female workers who experience a serious health condition are likely to help these workers return to their jobs, thereby providing important health and economic benefits for both workers and society.

Social inequality in patients??? physical and psychological state and participation in rehabilitation after myocardial infarction in Germany

Several Anglo-American studies found that vertical social characteristics made a difference in the utilization of cardiac rehabilitation programmes. A social gradient was also demonstrated for prevalence of risk factors, psychological strain and psychosocial resources. This study investigated social differences for these factors in a group of 536 patients who had suffered from a myocardial infarction. In contrast to findings in other industrialized countries, German patients of higher status groups made less use of cardiac rehabilitative services than patients with a lower and middle class status. However, similar to Anglo-American findings, patients with a lower socio-economic status were more likely to be smokers and more likely to be obese than other patients. Also they had higher levels of comorbidity and depression and lower self-efficacy expectations. Thus while there were no social disadvantages in terms of participation in cardiac rehabilitation programmes, which seems to be largely due to the specific characteristics of the German health care system, patients of lower socio-economic status seem to have worse baseline conditions and as a result of this a specific need for rehabilitative support.

Swedish Council on Technology Assessment in Health Care (SBU). Chapter 8. Sick leave due to coronary artery disease or stroke

The assessment of the literature on sick-leave with cardiovascular diseases include only studies with sufficient scientific quality. These studies describe sick leave following stroke, myocardial infarction, coronary artery bypass grafting (CABG), or percutaneous coronary intervention (PCI). We found limited scientific evidence for the following results: After stroke, more than half of the patients of working age returned to work (RTW) during the first year following onset (higher rate for the younger patients). The consequences of brain damage, e.g. impaired ADL ability or cognitive capacity, play an important role in this respect. Also after myocardial infarction most patients RTW. PCI is a milder coronary artery intervention than CABG and RTW is more rapid. However, in the long run there are no differences in sick leave. People at higher ages or with physically demanding jobs return to work to a lesser degree. An international comparison shows that the duration of sick leave due to these conditions in Sweden is longer than in other countries although there is no scientific evidence to support this practice. It appears that the interest in research on sick leave in patients with cardiovascular diseases has waned in recent years. Developments in acute cardiological care should inspire renewed scientific involvement in this area of research.

Referral to occupational medicine clinics and resumption of employment after myocardial infarction

Rehabilitation after acute myocardial infarction (AMI) consists of education, exercise, and an encouragement to return to work (RTW). This study attempts to (1) determine whether the time interval between AMI and the visit at occupational medicine (OM) clinics predicts resumption of full employment, and (2) estimate the incidence of work-related recurrent AMI after RTW. We followed 216 consecutive AMI patients at a single OM clinic. The independent variables were clinical and personal data, physical workload and time between AMI, and first visit to the OM clinic. The outcome variables were full employment 24 months after the acute event and recurrent AMI during this period. Of all patients, 168 attempted RTW. Of these, 18 stopped working subsequently. Of the remaining 150 patients, 54 returned to part-time work and 96 were employed full-time after 2 years. Logistic regression indicated that a failure to resume full employment was independently associated with diabetes, older age, Q wave AMI, angina before AMI, heavy work, and a late visit to the OM clinic. For each month's delay in referral to the OM clinic, there was a 30% decrease in the chance for full employment 24 months after AMI. Six (4%) of the 150 patients who resumed employment sustained a recurrent AMI, two of them while at work. A delayed referral to the OM clinic was associated with work disability after AMI. Late referrals to OM clinics should receive a more intensive and sustained rehabilitation than early referrals. Whether an earlier referral to OM clinics will result in increased RTW rates is unknown. Patients who attempted to resume employment had a 1.2% risk of a recurrent ischemic event at their workplace.

Socioeconomic status, social environment, depression and postdischarge adjustment of the cardiac patient

In this study, we assess the adjustment achieved by patients following discharge from coronary care and the role of socioeconomic status (SES), social environment (SE), and depression in achieving that adjustment. Two hundred eighty-seven patients were enrolled. The SE into which the patients were to be discharged was rated significantly poorer for patients of lower SES, who also scored higher on depression. At 1, 6, and 12 months postdischarge, lower SES patients recorded significantly poorer levels of adjustment across a range of functioning. Predischarge depression, together with measures of SE and SES, determined 10% to 28% of the variance in 12-month postdischarge adjustment. These data suggest the importance of identifying patients at greater risk for less than optimal outcome (those lower in SES and higher in depression), and the need to address the nature of the SE in which the patient has to effect his/her recovery.

Variables related to obesity and body fat: avenues to change

Obesity and overweight constitute major health concerns in this country today. This article provides a description of the terms overweight and obese, variables contributing to diet and exercise adherence, and practice implications for nurse practitioners.

Social class and cardiovascular risk factors in Danish men

During the last 25 years, a series of epidemiological studies in North-Western Europe and U.S.A. have demonstrated a negative association between social class and the incidence of cardiovascular disease (CVD), that is, an increasing incidence the lower the social class. In studies where possible explanations of this negative gradient have been analyzed, it was concluded that the traditional individual risk factors, such as elevated blood pressure, high serum cholesterol, and smoking, could explain about one half of the differences demonstrated. In a prospective study of a cohort of 504 men from the County of Copenhagen, the participants were examined when 40 and 51 years old. At both examinations the social class of the participants was recorded in addition to a number of cardiovascular risk factors. The latter included both the traditional risk factors and some not previously analyzed in relation to social class. At the 51-year examination we found statistically significant negative associations between social class and the following risk factors: plasma fibrinogen (p less than 0.001), short height (p less than 0.001), smoking (p less than 0.05), physical inactivity in leisure time (p less than 0.01), shift work (p less than 0.05), job strain (p less than 0.05), living alone (p less than 0.01), and having a poor social network (p less than 0.05). Two factors showed a significant opposite association with social class: Type A behaviour (p less than 0.001) and physical inactivity at work (p less than 0.001). In the last 10-15 years, a tendency has been demonstrated in many countries towards a strengthened association between social class and cardiovascular risk factors. This tendency was not found in our cohort. It has been discussed whether some of the social inequalities observed could be due to selection, so that people with a favourable cardiovascular risk profile socially were upward mobile. We found no support for such a selection hypothesis in our study.

Coronary heart disease prevention: relationship between socio-economic status and knowledge, motivation and behaviour in a free-living male, adult population

A questionnaire concerning knowledge, motivation and behaviour connected with coronary heart disease (CHD) prevention was administered to 6074 men aged 46 yrs, residents of Rome. The aim of this analysis was to evaluate whether differences exsisted between three socio-economic (SE) classes arbitrarily defined as medium-high (MH), intermediate (I), and medium-low (ML). Knowledge on CHD and its prevention was more satisfactory in the MH class than in the ML class. The same was observed for attitudes toward prevention (the MH class demonstrated more attention to prevention than ML class). Data were less straightforward for behaviour, which seemed to be dependent on both economic status and education. In fact the MH class claimed to smoke less than ML class, to spend more leisure time in physical activity and to check blood pressure and serum cholesterol more often. Their diets, however, were more expensive and rich than those of the ML class. By contrast the ML class, when compared to MH class, seemed to drink more alcoholic beverages and to be heavier, but they walked more and their diet resembled more closely the Mediterranean one. Altogether, in this study population, the highest social class seemed to be associated with better behaviours toward CHD prevention.

Issues of control and responsibility in workers' health

The issues of responsibility for health and control of factors influencing health are discussed with regard to workplace health programs. The role of each of the parties involved - workers, unions, management, and the government - can best be understood in relation to the interests they hold in workers' health. A matrix is presented which divides influences on workers' health according to the degree to which they are controlled by employers and workers. This matrix is used to suggest that workplace health promotion and employee assistance programs may represent employer involvement in areas over which they lack legitimate control. These programs are also criticized for their emphasis on behavior and their neglect of work-related causes of ill health and unhealthy behavior. They should be considered supplemental to a work environment which is conducive to both physical and psychosocial health; they will be most effective and appropriate with a high degree of worker involvement and control. Evidence regarding the effects of occupation and class on health and health-related behavior is presented to support the need for a comprehensive, ecological approach to workers' health. Such an approach should take into account the full range of influences and recognize the limits of legitimate control.

Psychological response to an acute coronary event and its effect on subsequent rehabilitation and lifestyle change

We assessed anxiety, depression, body image, motivation, and coping ability in 264 patients admitted with a first myocardial infarction. They were followed over 1 year to determine the relationship between psychological factors and subsequent return to work, smoking cessation, weight reduction, and adoption of a leisure exercise program. Females showed a poorer reaction to illness than did males. The better-educated, and patients in white-collar occupations showed less depression and expressed greater motivation. Anxiety and poor body image, however, tended to be least common in the intermediate educational and occupational group. All psychological factors predicted leisure exercise change, and all but anxiety predicted smoking cessation. Poor body image was linked with failure to reduce weight. Low expressed motivation was the only factor predicting delayed return to work.