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Childbirth as a Trauma: Psychometric Properties of the Impact Event Scale in Japanese Mothers of Neonates
Psychology and Behavioral Sciences
Volume 3, Issue 2, April 2014, Pages: 46-50
Received: Jan. 31, 2014; Published: Mar. 20, 2014
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Mizuki Takegata, Department of Midwifery and Women’s Health, the University of Tokyo, Tokyo, Japan; Kitamura Institute of Mental Health Tokyo, Tokyo, Japan
Toshinori Kitamura, Kitamura Institute of Mental Health Tokyo, Tokyo, Japan; Department of Psychiatry, Nagoya University, Nagoya, Japan
Megumi Haruna, Department of Midwifery and Women’s Health, the University of Tokyo, Tokyo, Japan
Kyoko Sakanashi, Department of Women’s Health/Mother-Child Nursing, Faculty of Life Science, Kumamoto University, Kumamoto, Japan
Tomoko Tanaka, Aso Public Health Center, Kumamoto, Japan
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Introduction:The purpose of this study was to evaluate the psychometric properties of the Impact of Event Scale (IES) among Japanese women after childbirth. Methods: Self-reported questionnaires were distributed to pregnant women in Kumamoto prefectureconsecutivelyon three occasions: late pregnancy (N = 642)andfive days (N = 416) and one month (N = 226) after delivery. Results:An exploratory factor analysis of the IES items at day 5 after childbirth yielded a two-factor structure (Intrusion and Avoidance) that was cross-validated by a confirmatory factor analysis. The IES subscale scores were correlated with other psychological measures rated at the same time, including postpartum depressive symptoms assessed with the Edinburgh Postnatal Depression Scale (EPDS) and perceived difficulty of childbirth experience. The Cronbach’salphacoefficients were .83 for Intrusion and .86 for Avoidance. Test–retest reliability between day 5 and one month after childbirth was .74 for Intrusion and .71 for Avoidance. Discussion: The results provide support for the IES as a valid and reliable measure of postnatal traumatic symptoms among Japanese women.
Impact of Event Scale, Japanese, Postnatal Women, Translation, Traumatic Stress
To cite this article
Mizuki Takegata, Toshinori Kitamura, Megumi Haruna, Kyoko Sakanashi, Tomoko Tanaka, Childbirth as a Trauma: Psychometric Properties of the Impact Event Scale in Japanese Mothers of Neonates, Psychology and Behavioral Sciences. Vol. 3, No. 2, 2014, pp. 46-50. doi: 10.11648/j.pbs.20140302.12
E.Olde,O.Van.Der.Hart,R.Kleber,andM.Van.Son,"Posttraumatic stress following childbirth: A review,"Clin. Psychol. Rev,vol.26, pp.1-16, 2006.
J.Czarnocka, and P.Slade,"Prevalence and predictors of post-traumatic stress symptoms following childbirth,"Br. J. Clin. Psychol, vol.39,pp.35-51, 2000.
D.K. Creedy, I.M. Shochet, and J. Horsfall,"Childbirth and the development of acute trauma symptoms: Incidence and contributing factors,"Birth, vol. 27, pp.104-111, 2000.
S.Ayers, and A.D.Pickering,"Do women get posttraumatic stress disorder as a result of childbirth? A prospective study of incidence,"Birth, vol. 28, pp.111–118, 2002.
S. Ayers, "Commentary on Post-traumatic stress following childbirth: a review of the emerging literature and directions for research and practice," Psychol. Heal. Med, vol. 8, pp. 159-168, 2003.
S, Ayers,"Assessing psychopathology in pregnancy and postpartum,"J. Psychosom. Obstet. Gynaecol, vol. 22, pp. 91-102, 2001.
C.G. Ballard, A.K. Stanley,I.F. Brockington, "Post-traumatic stress disorder (PTSD) after childbirth," Br. J. Psychiatry, vol. 166, pp.525-528, 1995.
S.Allen,"A qualitative analysis of the process, mediating variables and impact of traumatic childbirth," J. Reprod. Infant Psychol, vol.16, pp.107-131, 1998.
C.T. Beck, "Post-traumatic stress disorder due to childbirth: The aftermath,"Nurs. Res,vol.53, pp. 216-224, 2004.
T.Saisto, K.Salmela-Aro, J.E.Nurmi,T.Könönen, and E. Halmesmäki,"A randomized controlled trial of intervention in fear of childbirth," Obstet. Gynaecol, vol. 98, pp. 820–826, 2001.
E.L.Ryding,A.Persson, C.Onell, and L.Kvist,"An evaluation of midwives’ counseling of pregnant women in fear of childbirth," Acta Obstet. Gynecol. Scand.vol. 82, pp. 10-17,2003.
N.Yokote, "Women’s experiences of labor, surgery and first postnatal week by an emergency Caesarean section(in Japanese),"J. Japan Acad. Midwifery,vol. 22, pp. 37–48, 2008.
M.Horowitz, N.Wilner, and W.Alvarez,"Impact of Event Scale: A measure of subjective stress,"Psychosom. Med, 41, pp. 209-218,1979.
S.Garthus-Niegel,T.Von.Soest, M.E.Vollrath, andM. Eberhard-Gran,"The impact of subjective birth experiences on post-traumatic stress symptoms: A longitudinal study," ArchWomens Ment Heal, vol. 16, pp. 1-10, 2013.
J.L.Cox, J.M.Holden, and R.Sagovsky,"Detection of postnatal depression. Development of the 10-item Edinburgh Postnatal Depression Scale,"Br. J. Psychiatry,vol.150, pp.782-786.
T.Okano,T.Murata, A.Masuji, A.Tamaki, J.Nomura, and K. Miyaoka, et al,"Validation and reliability of Japanese version of Edinburgh Postnatal Depression Scale (in Japanese),"Seisinka-Shindangaku. vol, 7, pp. 523-533, 1996.
M.T.Spurrell,andA.C.McFarlane, "Life-events and psychiatric symptoms in a general psychiatry clinic: The role of intrusion and avoidance,"Br. J. Med. Psychol, vol. 68, pp. 333-340.
R.F.DeVellis,Scale development: Theory and applications, 3rded.,New York: Sage Publications, 2003, pp.171.
B.M.Byrne, Structural equation modeling with AMOS: Basic concepts, applications, and programming,Mahwah: Lawrence Erlbaum Associates, 2001, pp. 365–367.
J.C.Nunnally, and I.H.Bernstein, The theory of measurement error. Psychometric Theory,New York: McGraw Hill, 1994, pp. 209–247.
J.Cohen,Statistical power analysis for the behavioral sciences, Mahwah: Lawrence Erlbaum Associates; 1988, pp. 567.
J.J. Bartko, "The intraclass correlation coefficient as a measure of reliability,"Psychol. Report, vol. 19, pp. 3-11,1966.
I.H.Sloan, R.H.Rozensky, L.Kaplan, and S.M.Saunders,"A shooting incident in an elementary school: Effects of worker stress on public safety, mental health, and medical personnel," J. Trauma. Stress, vol. 7, pp. 565-574, 1994.
B.Kelly,B.Raphael, and M.Smithers, etal.,"Psychological responses to malignant melanoma. An investigation of traumatic stress reactions to life-threatening illness. " Gen. Hosp. Psychiatry, vol. 17, pp. 126-134, 1995.
D.S.Weiss, and C.R.Marmar, The Impact of Event Scale - Revised.2nd eddition. Assessing Psychological Trauma and PTSD, New York: Guilford Press, 1997, pp.399–411.
Tham V, Christensson K, and Ryding EL. Sense of coherence and symptoms of post-traumatic stress after emergency caesarean section. Acta Obstet. Gynecol. Scand. 2007;86(9):1090–1096.
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