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Association between socioeconomic support and the risk of mortality, stratified by frailty status. Adjusted for age, sex, education, residence (urban/rural) and multimorbidity. (a) Robust population; (b) Prefrail population; (c) Frail population. CI, commercial insurance; NRCMS, New Rural Cooperative Medical Scheme; QoL, quality of life; UBMI, Urban Basic Medical Insurance.
