Mills S D, Azizoddin D, Racaza G Z, Wallace D J, Weisman M H, Nicassio P M
1 San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, USA.
2 Department of Psychology, Loma Linda University, Loma Linda, USA.
Lupus. 2017 Oct;26(11):1218-1223. doi: 10.1177/0961203317701844. Epub 2017 Apr 13.
Objective Systemic lupus erythematosus (SLE) is a chronic, multisystem autoimmune disease characterized by periods of remission and recurrent flares, which have been associated with stress. Despite the significance of stress in this disease, the Perceived Stress Scale-10 has yet to be psychometrically evaluated in patients with SLE. Methods Exploratory factor analysis was used to examine the structural validity of the Perceived Stress Scale-10 among patients with SLE ( N = 138) receiving medical care at Cedars Sinai Medical Center. Cronbach's coefficient alpha was used to examine internal consistency reliability, and Pearson product-moment correlations were used to examine convergent validity with measures of anxiety, depression, helplessness, and disease activity. Results Exploratory factor analysis provided support for a two-factor structure (comparative fit index = .95; standardized root mean residual = .04; root mean square error of approximation = .08). Internal consistency reliability was good for both factors (α = .84 and .86). Convergent validity was evidenced via significant correlations with measures of anxiety, depression, and helplessness. There were no significant correlations with the measure of disease activity. Conclusion The Perceived Stress Scale-10 can be used to examine perceived stress among patients with SLE.
目的 系统性红斑狼疮（SLE）是一种慢性多系统自身免疫性疾病，其特征为缓解期和复发期交替出现，且这些都与压力有关。尽管压力在该疾病中具有重要意义，但感知压力量表-10（Perceived Stress Scale-10）尚未在SLE患者中进行心理测量学评估。方法 采用探索性因素分析来检验感知压力量表-10在西达赛奈医疗中心接受治疗的SLE患者（N = 138）中的结构效度。使用克朗巴哈系数α来检验内部一致性信度，并使用皮尔逊积差相关来检验与焦虑、抑郁、无助和疾病活动度测量指标的收敛效度。结果 探索性因素分析为双因素结构提供了支持（比较拟合指数 = 0.95；标准化根均方残差 = 0.04；近似误差均方根 = 0.08）。两个因素的内部一致性信度都良好（α = 0.84和0.86）。通过与焦虑、抑郁和无助测量指标的显著相关性证明了收敛效度。与疾病活动度测量指标无显著相关性。结论 感知压力量表-10可用于检测SLE患者的感知压力。
