Fig. 4From: Prevalence and characteristics of somatic symptom disorder in the elderly in a community-based population: a large-scale cross-sectional study in ChinaBinary logistic regression models of risk factors of SSD in non-elderly and elderly participants. Male, no hypertension, no diabetes, no cardio/cerebrovascular disease, no other diseases and age 60–69 were set as the reference category (Ref. = 1)Back to article page