Supplementary tables. Perceived Stress Scale: A tool to explore psychological stress in Mexican women

We present supplementary tables to an analysis that examined the factor structure of the Perceived Stress Scale-4 (PSS-4) and PSS-10 in a subsample of the Mexican Teachers Cohort Study. We performed Exploratory Factor Analysis (EFA) on a random sample of half the participants and Confirmatory Factor Analysis (CFA) on the second half. In addition, we examined the correlation between the Patient Health Questionnaire-9 (PHQ-9) and PSS-4 and PSS-10. Supplementary Table I shows the characteristics of respondents and non-respondents to PHQ-9. Supplementary Table II shows the characteristics of the EFA and CFA sub-samples.