Of the health indicators, cf-DNA, levels of fasting glucose, adiponectin, tumor necrosis factor (TNF)-alpha, interleukin (IL)-6, C-reactive protein (CRP), insulin, self-rated health (SRH), diabetes, CVD, respiratory disease, education level, vegetable consumption, smoking, alcohol consumption, and the frequency of intensive exercise were associated with mortality when adjusted for age and gender (p < 0.05, Supplementary Table S4). Here, IL6 is linked to respiratory system disorder.