The Tilburg Pregnancy Distress Scale revised (TPDS-R): Psychometric aspects in a longitudinal cohort study.

Pregnant women may be specifically prone to experience pregnancy-specific distress, which has been associated with adverse maternal, pregnancy and child outcomes. Accurately identifying pregnancy-specific distress is thus crucial. The Tilburg Pregnancy Distress Scale (TPDS) - translated into many different languages - was previously developed to measure pregnancy-specific distress, resulting in a 16-item screening scale with a partner involvement dimension (PI) and a negative affect dimension (NA). A critical evaluation of the psychometric properties of the TPDS-NA items and feedback from pregnant women over the last decade has led to the need to revise the TPDS. Therefore, in the current study, we describe the procedure for revision and evaluate the psychometric properties of the revised TPDS (TPDS-R). More specifically, we describe the revision of the TPDS-R-PI (4 items) and the TPDS-R-NA (10 items: five-item pregnancy and five-item childbirth subcomponent). A sample of 1081 pregnant women participating in the Brabant Study completed the TPDS-R at 12, 20 and 28 weeks of pregnancy. An exploratory factor analysis and confirmatory factor analysis, descriptive statistics and repeated measures ANOVA demonstrated good test-retest reliability, concurrent validity, internal consistency, and construct validity of the TPDS-R. The TPDS-R provides a robust screening tool to accurately identify pregnant women at risk of pregnancy-specific distress.