title: Measurement of Perceived Stress Among Pregnant Women: A Comparison of Two Different Instruments.
abstract: Assess the amount of agreement between the classification of stress from the Perceived Stress Scale (PSS) and the Assessment of Stress portion of the Prenatal Psychosocial Profile (PPP) among pregnant women. A secondary data analysis on a cross-sectional study of 301 pregnant women from the New Orleans and Baton Rouge areas who were exposed to Hurricane Katrina was conducted. Women with complete data (219) were analyzed. Women scoring in the third tertile of each instrument were compared. The kappa statistic was used to assess agreement between instruments. Additional comparisons were made with three instruments that measure other important psychosocial constructs that could be related to stress: the Edinburgh Depression Scale (EDS) and the Assessments of Support (partner and other support) and Self-Esteem from the PPP. No significant difference was found between the two tests. The PSS and the PPP were both statistically significantly correlated to each other (ρ = 0.71, p < 0.01). Thirty-five women were classified discordantly resulting in a Kappa Coefficient of 0.61 (95% CI 0.50-0.72, p < 0.01). No significant differences were found between these two instruments in correlation with the EDS (PPP, r = 0.76; PSS, r = 0.72; p < 0.01 for each), partner support (PPP, r = -0.47; PSS r = -0.46; p < 0.01 for each), other support (PPP, r = -0.31; PSS r = -0.32; p < 0.01 for each) and self-esteem (PPP, r = -0.41; PSS, r = -0.52; p < 0.01 for each), respectively. Given the similarities between the PSS and PPP, researchers are encouraged to choose and administer one instrument to participants, or to use the instruments in combination as an external reliability check.
authors: Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1400 Canal St. SL-18, New Orleans, LA, 70112-2715, USA, asolivan@tulane.edu.
authors: Amber E
authors: AE
authors: Solivan
authors: Xu
authors: X
authors: Xiong
authors: Emily W
authors: EW
authors: Harville
authors: Pierre
authors: P
authors: Buekens
mesh_terms: D003430:Cross-Sectional Studies; D055867:Cyclonic Storms; D005260:Female; D006801:Humans; D008145:Louisiana; D010465:Perception; D011247:Pregnancy; D037841:Pregnant People / Q000523:psychology*; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D013315:Stress, Psychological / Q000523:psychology*; D011795:Surveys and Questionnaires; D054928:Validation Studies as Topic
references: Am J Epidemiol. 2003 Jan 1;157(1):14-24
references: 12505886
references: Ann N Y Acad Sci. 1999;897:54-65
references: 10676435
references: J Health Soc Behav. 1983 Dec;24(4):385-96
references: 6668417
references: Br J Psychiatry. 1987 Jun;150:782-6
references: 3651732
references: J Pers Soc Psychol. 1988 Mar;54(3):486-95
references: 3361420
references: Res Nurs Health. 1994 Apr;17(2):127-35
references: 8127993
references: Am J Obstet Gynecol. 1996 Nov;175(5):1286-92
references: 8942502
references: Res Nurs Health. 1998 Jun;21(3):211-9
references: 9609506
references: Int J Gynaecol Obstet. 2013 Sep;122(3):207-11
references: 23820031
references: Br J Sports Med. 2014 May;48(9):761-7
references: 24563390
references: Am J Obstet Gynecol. 2005 May;192(5 Suppl):S30-5
references: 15891710
references: Ann N Y Acad Sci. 2004 Dec;1032:1-7
references: 15677391
references: Mayo Clin Proc. 2014 Jul;89(7):917-25
references: 24809759
references: Acta Obstet Gynecol Scand. 2006;85(3):277-85
references: 16553174
references: Acta Obstet Gynecol Scand. 2007;86(3):266-75
references: 17364299
references: Annu Rev Clin Psychol. 2005;1:293-319
references: 17716090
references: Eur J Pharmacol. 2008 Apr 7;583(2-3):174-85
references: 18282566
references: Paediatr Perinat Epidemiol. 2008 May;22(3):240-8
references: 18426519
references: Clin Obstet Gynecol. 2008 Jun;51(2):333-48
references: 18463464
references: Am J Med Sci. 2008 Aug;336(2):111-5
references: 18703903
references: Hum Reprod. 2009 Feb;24(2):429-37
references: 19054778
references: Am J Disaster Med. 2010 May-Jun;5(3):181-7
references: 20701175
references: Arch Gen Psychiatry. 2010 Oct;67(10):1012-24
references: 20921117
references: J Psychosom Res. 2011 Apr;70(4):385-9
references: 21414460
references: Early Hum Dev. 2011 May;87(5):373-80
references: 21420261
references: Am J Perinatol. 2011 Jun;28(6):443-8
references: 21136349
references: Prog Neurobiol. 2012 Nov;99(2):106-16
references: 22800930
references: Pediatrics. 2013 Apr;131(4):e1225-30
references: 23530181
references: Hypertension. 2013 Jul;62(1):183-9
references: 23608651
references: Am J Epidemiol. 2004 May 1;159(9):872-81
references: 15105180