军人的睡眠质量影响生活满意度:不执着与反刍思维的链式中介作用OA

Objective The military population,due to special occupational stress and high-intensity tasks,commonly experiences sleep problems,which may have a negative impact on life satisfaction;however,the underlying mechanism remains unclear.This study aims to explore the effect of sleep quality on life satisfaction among military personnel and the roles of non-attachment and rumination in the relationship between sleep quality and life satisfaction.Methods A cross-sectional study design was adopted without prospective grouping or intervention.A total of 1 352 military personnel from a certain unit were selected using convenience sampling.The survey instruments included the Pittsburgh Sleep Quality Index,the Satisfaction with Life Scale,the Non-Attachment Scale,and the Ruminative Response Scale.Statistical analyses included:descriptive statistics to analyze the demographic characteristics of variables;Spearman correlation analysis to examine the correlations among the variables;Linear regression was used to analyze the linear relationships of sleep quality with non-attachment,rumination,and life satisfaction;and PROCESS macro Model 6 in SPSS to estimate regression coefficients(β)and their 95％confidence intervals(CIs)using Bootstrap method,in order to test the chain mediating effect of non-attachment and rumination in the relationship between sleep quality and life satisfaction.Results Military personnel aged ≥29 years had significantly higher sleep quality scores than those aged 18 to 28 years(P＜0.05).Military personnel aged 18 to 23 years exhibited significantly higher rumination scores than those aged 24 years(P＜0.05).Military personnel with bachelor's degree or above had significantly higher sleep quality and rumination scores than those with college degree or high school and below(P＜0.01).In terms of non-attachment scores,military personnel with a bachelor's degree or above had significantly lower non-attachment scores than those with college degree or below(P＜0.01).Military personnel with bachelor's degree or above had significantly lower life satisfaction scores than those with college degree(P＜0.05).Correlation analysis revealed that sleep quality was significantly negatively correlated with non-attachment(r=-0.395,95％CI:-0.441 to-0.348,P＜0.001)and life satisfaction(r=-0.407,95％CI:-0.452 to-0.361,P＜0.001),and positively with rumination(r=0.440,95％CI:0.395 to 0.483,P＜0.001).Non-attachment was significantly negatively correlated with rumination(r=-0.508,95％CI:-0.547 to-0.466,P＜0.001)and positively with life satisfaction(r=0.515,95％CI:0.473 to 0.554,P＜0.001),and rumination was significantly negatively correlated with life satisfaction(r=-0.442,95％CI:-0.485 to-0.397,P＜0.001).The linear regression showed that sleep quality significantly negatively predicted life satisfaction(β=-0.456,P＜0.001);non-attachment significantly positively predicted life satisfaction(β=0.243,P＜0.001);rumination significantly negatively predicted life satisfaction(β=-0.184,P＜0.001).The total effect of sleep quality on life satisfaction was significant,with a total effect size of-0.868(95％CI:-0.977 to-0.759,P＜0.001).The mediating effects of non-attachment and rumination in the impact of sleep quality on life satisfaction were significant,with effect values of-0.172(95％CI:-0.232 to-0.122,P＜0.001)and-0.196(95％CI:-0.251 to-0.140,P＜0.001),respectively,accounting for 19.82％and 22.58％of the total effect,respectively.Non-attachment and rumination played chain mediating roles in the impact of sleep quality on life satisfaction,with an effect value of-0.044(95％CI:-0.061 to-0.029,P＜0.001),accounting for 5.07％of the total effect.Conclusion Sleep quality,non-attachment,rumination,and life satisfaction are closely related among military personnel,and sleep quality affects life satisfaction through the chain mediating effects of non-attachment and rumination.It is recommended that military psychological interventions focus on improving sleep quality,while reducing rumination and cultivating non-attachment attitudes through mindfulness training,to systematically enhance life satisfaction among military personnel.