Department of Epidemiology and Reproductive Health at Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
Department of Community and Public Health Nursing, Faculty of Nursing, AJA University of Medical Sciences, Tehran, Iran.
Arch Iran Med. 2014 May;17(5):361-5.
Asthma is a major public health problem in the world, and recent findings suggest that stress influences asthma and asthma morbidity. The 10-item Perceived Stress Scale (PSS-10) is one of the most frequently used instruments to measure psychological stress. This study was conducted to evaluate the psychometric properties of the Persian versions of the PSS-10 in adults with asthma.
In this descriptive cross-sectional study as a methodological research, 106 asthmatic patients referring to several clinics in Sanandaj (western Iran) were selected through convenience sampling. The PSS-10 and the 21-item Depression anxiety and stress scale (DASS-21) were administrated to all patients. Cronbach's alpha was used to evaluate reliability of PSS-10, and confirmatory factor analysis (CFA) and convergent validity were used to evaluate its validity.
The results of confirmatory factor analysis indicated that a two-factor structure of PSS-10 provided a good fit to data. The Cronbach's alpha coefficients for negative factor, positive factor and total score (PSS-10) were 0.86, 0.83, and 0.90, respectively. The PSS-10 was positively correlated with the DASS-21 and its subscales, indicating an acceptable convergent validity. Female asthmatic patients scored higher on PSS-10 in comparison with male asthmatic patients.
The Persian version of PSS-10 is a valid and reliable instrument to measure perceived stress in adults with asthma.
哮喘是世界范围内的一个主要公共卫生问题，最近的研究结果表明压力会影响哮喘和哮喘发病率。10 项感知压力量表（PSS-10）是衡量心理压力最常用的工具之一。本研究旨在评估 PSS-10 的波斯语版本在哮喘成人中的心理测量特性。
在这项描述性的横断面研究中，作为一种方法学研究，我们通过方便抽样选择了 106 名来自 Sanandaj（伊朗西部）的几家诊所的哮喘患者。所有患者均接受 PSS-10 和 21 项抑郁焦虑和压力量表（DASS-21）的评估。Cronbach's alpha 用于评估 PSS-10 的信度，验证性因子分析（CFA）和收敛效度用于评估其效度。
验证性因子分析的结果表明，PSS-10 的两因素结构为数据提供了良好的拟合。PSS-10 的负性因子、正性因子和总分（PSS-10）的 Cronbach's alpha 系数分别为 0.86、0.83 和 0.90。PSS-10 与 DASS-21 及其分量表呈正相关，表明具有可接受的收敛效度。与男性哮喘患者相比，女性哮喘患者在 PSS-10 上的得分更高。
PSS-10 的波斯语版本是一种有效且可靠的工具，可用于衡量哮喘成人的感知压力。
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