中文摘要：

目的探索情感平衡在长寿人群健康状况与生活满意度之间的中介效应。方法研究对象为439例来自如皋长寿队列的长寿老人（≥95＋岁）。健康状况包括自评健康及客观健康（疾病严重程度）;生活满意度采用生活满意度指数A（Life Satisfaction Index A,LSIA）量表测量;情感平衡通过情感平衡量表（Affect Balance Scale,ABS）测量。采用Spearman相关分析和结构方程模型进行分析。结果客观健康、自评健康、情感平衡以及生活满意度两两之间均相关（P均〈0.05）;客观健康和自评健康对生活满意度的直接效应不显著（β=0.02,P=0.791;β=0.16,P=0.153）,客观健康和自评健康通过情感平衡对生活满意度的间接效应显著（β=-0.14,P〈0.05;β=0.45,P〈0.001）。结论在长寿人群中情感平衡是健康状况与生活满意度之间的中介变量。

英文摘要：

Objective To explore the mediating effect of affect balance in the relationship between health condition and life satisfaction in long-lived elders. Methods Overall 439long-lived individuals（aged 95＋ years）from the Rugao longevity cohort were included in the study.Health condition consisted of self-rated health and objective health（measured by disease severity）.Life satisfaction and affect balance were measured by Life Satisfaction Index A（LSIA）Scale and Affect Balance Scale（ABS） respectively. Spearman rank correlation and structure equation modeling were used for data analyses. Results The correlations between objective health,self-rated health,affect balance and life satisfaction were all significant（all P〈0.05）.Objective health and self-rated health had insignificant direct effects on life satisfaction（β=0.02,P=0.791;β=0.16,P=0.153）.Objective health and self-rated health showed significant indirect effects on life satisfaction through the mediating effect of affect balance（β=-0.14,P〈0.05;β=0.45,P〈0.001）. Conclusions Affect balance is a mediating variable linking health condition to life satisfaction in long-lived elders.