This population-based study using 2011-2012 Spanish National Health Survey data aimed to measure the impact of disease, health-related habits, and risk factors associated with informal caregiving. We included and matched self-reported informal caregivers [ICs] with controls (1:4) from the same survey. For each outcome, we analyzed associations between ICs and controls using linear regression or logistic regression models. ICs had 3.4 per cent more depression (OR: 1.33, 95 per cent confidence intervals [CI]:1.06, 1.68). ICs had lower social support (95 per cent CI: 1.64, 3.28), they did more housework alone (OR:3.6, 95 per cent CI:2.65, 4.89), and had greater stress (95 per cent CI:0.13, 0.83). Women ICs caring alone had more anxiety than other groups. We found no statistical association between caregivers and worse health-related habits or increased risk factors (less physical activity, smoking, drinking, and cholesterol). Our results provide evidence that health-care professionals and organizations should recognize the importance of caring for those who care.

Studies of the characteristics of informal caregivers and associated factors have focused on care-receiver disease or caregiver social and psychological traits; however, an integral description may provide better understanding of informal caregivers’ problems. A multicenter cross-sectional study in primary healthcare centers was performed in Barcelona (Spain). Participants were a random sample of informal caregivers of patients in a home-care program. Primary outcomes were health-related quality of life and caregiver burden, and related factors were sociodemographic data, clinical and risk factors, social support and social characteristics, use of healthcare services, and care receivers’ status. In total, 104 informal caregivers were included (mean age 68.25 years); 81.73% were female, 54.81% were retired, 58.65% had high comorbidity, and 48.08% of care receivers had severe dependence. Adjusted multivariate regression models showed health-related quality of life and the caregivers’ burden were affected by comorbidity, age, time of care, and dependency of care receiver, while social support and depression also showed relative importance. Aging, chronic diseases, and comorbidity should be included when explaining informal caregivers’ health status and wellbeing. The effectiveness of interventions to support informal caregivers should comprehensively evaluate caregivers when designing programs, centering interventions on informal caregivers and not care receivers’ conditions.