Psychometric Characteristics of the Pittsburgh Sleep Quality Index in English Speaking Non-Hispanic Whites and English and Spanish Speaking Hispanics of Mexican Descent

Abstract

Across groups, a 3-factor model of the PSQI more reliably assessed sleep quality than a single-factor global score. Results indicate that the 3-factor structure of the PSQI was uniform across English speaking NHW and English and Spanish speaking HMD.

The Pittsburgh sleep quality index as a screening tool for sleep dysfunction in clinical and non-clinical samples: A systematic review and meta-analysis

“…The samples represented a variety of clinical disorders, including cancer [35,36,50,72], schizophrenia, and chronic fatigue syndrome [63,68], as well as healthy participants of varying ages [40,41,49,51], sexes [46e80], and races and ethnicities [49,78].…”

“…Four studies [48,55,62,78] using factor analysis reported low factor loading for the SM sub-scale and another reported low factor loading for the DD sub-scale [70]. The authors reported that improved fit statistics could be obtained after removal of these items.…”

“…In studies using factor analysis, eight [48,54,55,62,63,70,72,78] out of eleven studies reported that a single-factor model fit the data poorly, and the PSQI is better represented in a two-or three-factor model. Different factor structure models were proposed.…”

Validation of the Sinhala version of the Pittsburgh Sleep Quality Index

“…Factor analytical studies of the PSQI have mostly found a single factor although some studies have reported a three factor model [12][13][14][15]. In many studies ''use of sleep medications'' did not load well into the one factor model.…”

Psychological Distress Mediates the Association between Food Insecurity and Suboptimal Sleep Quality in Latinos with Type 2 Diabetes Mellitus

“…Sleep quality was measured with the 3-factor version of the Pittsburgh Sleep Quality Index (PSQI), which assesses sleep quality during a 1-mo period (40,41). As validated by Tomfohr et al (40), we used 6 of the 7 PSQI subscales (Subjective Sleep Quality, Sleep Duration, Sleep Disturbance, Sleep Efficiency, Daytime Dysfunction, and Sleep Latency).…”