Examining the Factor Structure of the Pittsburgh Sleep Quality Index in a Multi-Ethnic Working Population in Singapore

被引：16

作者：

Dunleavy, Gerard ^{[1
,2
]}

Bajpai, Ram ^{[1
,3
]}

Tonon, Andre Comiran ^{[4
,5
]}

Chua, Ai Ping ^{[6
]}

Cheung, Kei Long ^{[7
]}

Soh, Chee-Kiong ^{[8
]}

Christopoulos, Georgios ^{[9
]}

de Vries, Hein ^{[2
]}

Car, Josip ^{[1
,10
]}

机构：

[1] Nanyang Technol Univ Singapore, Lee Kong Chian Sch Med, Ctr Populat Hlth Sci, 11 Mandalay Rd, Singapore 308232, Singapore

[2] Maastricht Univ, CAPHRI Care & Publ Hlth Res Inst, Dept Hlth Promot, POB 616, NL-6022 MD Maastricht, Netherlands

[3] Keele Univ, Res Inst Primary Care & Hlth Sci, David Weatherall Bldg, Keele ST5 5BG, Staffs, England

[4] Porto Alegre Clin Hosp HCPA, Lab Cronobiol & Sono, R Ramiro Barcelos 2350, BR-90035007 Porto, Brazil

[5] Fed Univ Rio Grande Sul UFRGS, Postgrad Program Psychiat & Behav Sci, Av Paulo Gama 110, BR-90040060 Porto Alegre, RS, Brazil

[6] Natl Univ Hlth Syst, Dept Med, Jurong Hlth Campus,1 Jurong East St 21, Singapore 609606, Singapore

[7] Brunel Univ London, Coll Hlth & Life Sci, Dept Clin Sci, Kingston Lane, London UB8 3PH, Middx, England

[8] Nanyang Technol Univ Singapore, Coll Engn, Sch Civil & Environm Engn, 50 Nanyang Ave, Singapore 639798, Singapore

[9] Nanyang Technol Univ Singapore, Coll Business, Nanyang Business Sch, Div Leadership Management & Org, 50 Nanyang Ave, Singapore 639798, Singapore

[10] Imperial Coll London, Sch Publ Hlth, Dept Primary Care & Publ Hlth, London SW7 2AZ, England

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH | 2019年 / 16卷 / 23期

基金：

新加坡国家研究基金会;

关键词：

sleep quality; factor analysis; workplace health; 3-FACTOR MODEL; SAMPLE-SIZE; RELIABILITY; VALIDITY; HEALTH; LIGHT;

D O I：

10.3390/ijerph16234590

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The Pittsburgh Sleep Quality Index (PSQI) is a widely used measure for assessing sleep impairment. Although it was developed as a unidimensional instrument, there is much debate that it contains multidimensional latent constructs. This study aims to investigate the dimensionality of the underlying factor structure of the PSQI in a multi-ethnic working population in Singapore. The PSQI was administered on three occasions (baseline, 3 months and 12 months) to full-time employees participating in a workplace cohort study. Exploratory factor analysis (EFA) investigated the latent factor structure of the scale at each timepoint. Confirmatory factor analysis (CFA) evaluated the model identified by EFA, and additionally evaluated it against a single factor and a three-factor model. The EFA identified a two-factor model with similar internal consistency and goodness-of-fit across each timepoint. In the CFA, the two- and three-factor models were both superior to the unidimensional model. The two- and three-factor models of the PSQI were reliable, consistent and provided similar goodness-of-fit over time, and both models were superior to the unidimensional measure. We recommend using the two-factor model to assess sleep characteristics in working populations in Singapore, given that it performs as well as the three-factor model and is simpler compared to the latter.

引用

页数：12

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