医生组织支持感及心理资本与抑郁症状关系

目的 探讨医生组织支持感与抑郁症状关系,以及心理资本在两者关系中的中介作用.方法 采用整群抽样方法选择辽宁省三级甲等医院1300名医生进行问卷调查,运用SPSS17.0和Amos7.0软件进行数据分析;采用多元逐步回归分析方法验证组织支持感与抑郁症状关系及心理资本的中介作用,应用结构方程模型验证该中介作用的假设模型,分析组织支持感对抑郁症状的直接效应和间接效应.结果 医生组织支持感与抑郁症状呈明显负相关( β=-0.35,P<0.05),其对抑郁症状的变异解释度为12.0%;在加入心理资本后,组织支持感与抑郁症状的回归系数绝对值降低( β=-0.21,P<0.05),且心理资本与抑郁症状也呈负相关( β=-0.33,P<0.05),表明心理资本在组织支持感和抑郁症状之间起到中介作用;结构方程拟合效果显示,近似误差均方根(RMSEA)=0.05,比较拟合系数(CFI)=0.91,非标准拟合指数(TLI)=0.90,增量拟合系数(IFI)=0.91,χ²/df=3.64(2<χ²/df<5代表模型拟合较好);组织支持感对抑郁症状的直接效应系数为-0.15,间接效应系数为-0.11.结论 医生心理资本在组织支持感和抑郁症状关系中存在中介作用;组织支持感对抑郁症状影响包括直接效应与间接效应.

Relationships between perceived organizational support, psychological capital and depressive symptoms in Chinese doctors

Objective To explore the relationship between perceived organizational support and depressive symptoms and the mediating role of psychological capital in the relationship. Methods Stratified cluster sampling method was used to investigate doctors from six large general hospitals in Liaoning province.SPSS 17.0 and Amos 7.0 statistical software were applied to perform statistical analyses and to test study hypotheses. Results Perceived organizational support was inversely associated with depressive symptoms(β=-0.35,P<0.05) and explained 12.0% of variance of depressive symptoms.After adding psychological capital in the equation,the absolute value of regression coefficient decreased(β=-0.21,P<0.05) and psychological capital was negatively associated with depressive symptoms,which indicated that psychological capital played a mediating role.The final fitting indicators of structured equation model were:root mean square error of approximation(RMSEA)=0.05,comparative fit index(CFI)=0.91,Tucker-Lewis index(TLI)=0.90,incremental fit index(IFI)=0.91,χ2/df=3.64.The direct and indirect effect indices of perceived organizational support on depressive symptoms were-0.15 and-0.11,respectively. Conclusion Psychological capital plays a mediating role in the relationship between perceived organizational support and depressive symptoms.Perceived organizational support affects depressive symptoms in both direct and indirect ways.