Postpartum depression in the NICU: an examination of the factor structure of the Postpartum Depression Screening Scale.

Autor:	Blucker RT; Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City (Drs Blucker, Cherry, McCaffree, and S. R. Gillaspy, and Mss Hetherington and Kyler); Department of Psychology and Counseling, University of Central Arkansas, Conway (Dr J. A. Gillaspy); and Department of Psychology, University of Windsor, Ontario, Canada (Dr Jackson)., Gillaspy JA Jr, Jackson D, Hetherington C, Kyler K, Cherry A, McCaffree MA, Gillaspy SR
Jazyk:	angličtina
Zdroj:	Advances in neonatal care : official journal of the National Association of Neonatal Nurses [Adv Neonatal Care] 2014 Dec; Vol. 14 (6), pp. 424-32.
DOI:	10.1097/ANC.0000000000000135
Abstrakt:	Purpose: The purpose of this research was to examine the construct validity of scores from the Postpartum Depression Screening Scale administered to mothers of infants in a neonatal intensive care unit. Subjects: Two samples (n = 385 and n = 110) of mothers with infants in a neonatal intensive care unit in the south-central region of the United States completed the Postpartum Depression Screening Scale 2 weeks postpartum. Both samples were similar in race and education level but differed according to marital status. Design: Study 1 was retrospective and descriptive, whereas study 2 was prospective and descriptive. Methods: In study 1, confirmatory factor analysis was used to evaluate the originally proposed 7-factor structure and a 1-factor model. Because of overly high correlations between 3 of the factors, a revised 5-factor model was also tested. In study 2, confirmatory factor analysis was again used to test the construct validity or goodness of fit of the 7-factor and 5-factor models. Main Outcome Measures: Goodness-of-fit indices and factor pattern coefficients. Principal Results: In study 1, high correlations between 3 of the factors in the 7-factor model did not converge. Thus, a 5-factor model was also tested. This model had reasonable fit: χ= 1339.70 (550); P < 0.01; comparative fit index = 0.85; root mean square error of approximation = 0.06; and 90% confidence interval for root mean square error of approximation = 0.058 to 0.067. In study 2, confirmatory factor analysis was again used to test the construct validity or goodness of fit of the 7-factor and 5-factor models. Results for the 7-factor model indicated unacceptable fit: χ (539) = 959.10; P < 0.01; comparative fit index = 0.76; and root mean square error of approximation = 0.09. The 5-factor model was also poor: χ (550) = 992.95; P < 0.01; comparative fit index = 0.75; and root mean square error of approximation = 0.09. Conclusions: Although the construct validity of the 7-factor model of the PDSS was not supported for this sample of mothers, additional factor analytic work was used to develop and provide initial validation of a 5-factor model. Future research should continue to explore the unique experiences of mothers in the NICU who experience postpartum depression.
Databáze:	MEDLINE
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