NICU患儿母亲觉察压力对睡眠质量的影响及反刍思维的中介作用

Effect of perceived stress on sleep quality in mothers of patients in NICU and the mediating role of rumination

目的 探索NICU患儿母亲觉察压力对睡眠质量的影响,以及反刍思维在二者中的中介作用。方法 选取831例NICU患儿母亲,采用中文版觉察压力量表(CPSS)、反刍思维量表(RRS)、匹兹堡睡眠质量指数量表(PSQI)进行调查。结果 NICU患儿母亲睡眠质量、觉察压力、反刍思维总分分别为(7.23±2.12)分、(22.01±6.17)分、(47.76±7.92)分,49.8%母亲睡眠质量差。觉察压力、反刍思维与睡眠质量均呈正相关(r=0.611,0.593,均P<0.05),觉察压力与反刍思维呈正相关(r=0.638,P<0.05)。觉察压力对睡眠质量影响的直接效应值为0.393,通过反刍思维间接影响效应值为0.219,反刍思维的中介效应占总效应的35.8%。结论 NICU患儿母亲觉察压力能够直接影响睡眠质量,且通过反刍思维间接影响睡眠质量。

Objective To explore the effect of perceived stress on sleep quality in mothers of patients in NICU,and mediating role of rumination.Methods 831 mothers of patients in NICU were investigated with Chinese perceived stress scale(CPSS),ruminative responses scale(RRS)and Pittsburgh sleep quality index(PSQI).Results The total score of PSQI,perceived stress and rumination of mothers of patients in NICU were(7.23±2.12),(22.01±6.17)and(47.76±7.92)respectively.49.8%had poor sleep quality.Perceived stress,rumination and sleep quality were positively correlated(r=0.611,0.593,P<0.05).Perceived stress was positively correlated with rumination(r=0.638,P<0.05).The direct effect of perceived stress on sleep quality was 0.393,the indirect effect through rumination was 0.219.The mediating effect of rumination accounted for 35.8%of the total effect.Conclusion Perceived stress directly affects sleep quality,and indirectly affects sleep quality through rumination.