摘要
The present study investigates the effects of subjective well-being(SWB)on mortality risk using a large sample from the Chinese Longitudinal Healthy Longevity Study conducted in 1998,2000,2002,2005,2008,2011 and 2014.SWB is measured by life satisfaction,positive affect and negative affect.We found that positive affect,negative affect,life satisfaction and the change of life satisfaction significantly have predicted mortality risks of the older people with control of social demographic characteristics,physical health,social support,cognitive ability,and social participation.The higher the positive affect,the lower the negative affect,the improvement the life satisfaction,the lower the mortality risk.Marital status plays a decisive role in the influence of life satisfaction on the mortality risk.The married persons have lower mortality risk even if they rate their life bad.In further analyses,we found that the effects of SWB on mortality risk were underestimated in short-term study compared with those in long-term study.SWB is essentially a time-dependent variable and changes with age,so treating SWB as time-independent variable underestimated its impact on mortality risk.
