Loneliness and social support in cardiovascular aging: a closer look at the reported positive correlation

This correspondence offers a methodological reflection on the cross-sectional study by Darabi and colleagues, which examines loneliness and social support in older Iranian adults with cardiovascular disease. The study addresses an important gap in Middle Eastern aging research. However, the reported positive correlation between loneliness and social support invites closer methodological consideration. We invite readers to consider four methodological aspects: whether shared method variance may have influenced the observed correlation, why subgroup findings do not follow the reported trends, whether the instruments perform similarly in a low-literacy population, and what the cross-sectional design can, and cannot, tell us about directionality. These considerations suggest the observed association might benefit from further investigation with longitudinal designs and objective measures. We hope these reflections support the continued study of social health in aging populations.