Dear Editor,Although cardiovascular disease (CVD) is most prevalent in theelderly, it often affects patients in their productive years prior toretirement age (65–70 years) [1]. In this case, almost always,medical and rehabilitative support has the objective to promotethe return to work (RTW) [2]. Previous studies have focused onvariables that can affect a more rapid and satisfactory RTW, andthese studies concluded that the RTW after CVD is a complex andmultidimensional process that is more influenced by psychosocialfactors (e.g., depression, work strain, job satisfaction, and workplacejustice) than by the patient's clinical status (e.g., left ventricularejection fraction) [3,4]. The RTW after a cardiovascular event is noteasy [5], and observational studies have reported that workers withCVD show increased rates of absenteeism and disability periodscompared with workers without CVD [6]. There is an abundance ofscientific literature demonstrating that lifestyle interventions inpatients with CAD can reduce the risk of new events, improve thesurvival and the quality of life [7,8]. Nevertheless, the influence ofwork on healthy lifestyle is relatively unknown and adverse jobconditions, characterized by high job strain, might increase thelikelihood of co-occurring health risk behaviors [9].Wethusanalyzed the data collected with the Italian survey on CardiacRehabilitation and Secondary prevention after cardiac revascular-ization (ICAROS) to verify patient adherence to a healthy lifestyle.ICAROS has already been described elsewhere [8,10].Inbrief,itisaprospective, longitudinal, multicenter registry with on-line datacollection that evaluates the achievement and maintenance ofrecommended lifestyle targets and risk control after completing acomprehensive inpatient or outpatient cardiac rehabilitation pro-gram aftercardiac revascularization. The lifestyle data collectionwasperformed by trained investigators at discharge from the CardiacRehabilitation program, as well as 6 months and 1 year later, using abrief questionnaire that analyzed smoking habits (smoking vs. nosmoking), diet (the consumption frequency of vegetables, fruit, fish,olive oil and cheese/butter was evaluated to obtain a Mediterraneandiet score, which was then categorized into good or bad diet), andphysical activity (never/rarely vs. ≥30 min/session of moderateintensity exercise per 3 times/week) [8,10]. The ethical committeefor each center approved the protocol, and informed consent wasobtained from each patient. To obtain a balanced sample for thisresearch,accordingtothecurrentincreasein meanretirementageinItaly, we extracted only working age patients (b70) from the ICAROSdatabase, and we divided them into two groups: workers and non-workers before CVD. Using these categories, we selected 789 of 1272patients; demographic and lifestyle profiles of the study populationsare reported in Table 1.Inoursample,thenumberofworkingpeopledecreasedovertime.Atthe moment of the index event workers were 51.5% of the studypopulation:6and12 monthsaftertheendofthesupervisedCRprogrampatient with a profitable work were 47 and 38.9%, respectively. Thus,9.6% of those that were working before CVD did not return to work6 months after discharge, and 17.3% of those that returned to work lefttheir jobs within the first 12 months after discharge.We performed 3 logistic regressions to assess the influence ofwork on smoking behavior, dietary habits and physical activity,controlling for the effects of time after discharge, other lifestylehabits, intervention type, age and sex (Table 2 ).The logistic regressionused to predict smoking behavior revealedthat the odds for smoking was 1.84 (95% CI = 1.13–2.99) timesgreater for workers compared with non-workers. Nevertheless, sex(male odds ratio (OR) = 2.75; 95% CI = 1.25–6.03) and, weakly, age(OR = 0.97; 95% CI = 0.94–0.99) also affected smoking behavior.The return to work did not have an effect on dietary habits andphysical activity. However, our data suggested that these lifestylebehaviors were linked. Indeed, bad dietary habits increased theprobability of smoking (OR = 1.81; 95% CI = 1.23–2.66), smokingbehavior decreased the probability of adopting a healthy diet(OR = 0.62; 95% CI = 0.39–1.00) and adopting a healthy dietincreased the probability of being physically active (≥3times/week), with an odds ratio of 1.98 (95% CI = 1.56–2.40).Our data highlighted three important aspects related to thereturn to work and lifestyle modification that, to the best of ourknowledge, were previously unexplored. First, a considerable groupof CVD patients returned to work but then, within the first yeardecided to retire; second, patients that returned to work had anincreased risk of not quitting. Finally patients with a defectivecontrol of one lifestyle risk factors are at higher risk for adoption ofan additional unhealthy lifestyle. Because the return to work for CVDpatients is psychologically stressful [4,6], it might be postulated thatsome patients decide to retire and that other patients resumesmoking after the RTW as a result of maladaptive coping strategies.In conclusion, this ancillary analysis of ICAROS highlights theimportance of considering in patients with CAD not only the RTWbut also their level of functioning once they are back at work [10].Inparticular, one question raised here is whether it is possible tobalance work life with a healthy lifestyle or if the RTW leads tosmoking and other unhealthy behaviors. From this perspective, wethink that our data open an interesting field of research and a newrole for cardiac rehabilitation.
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