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.