Table of Contents
ISRN Obstetrics and Gynecology
Volume 2012, Article ID 945628, 6 pages
http://dx.doi.org/10.5402/2012/945628
Clinical Study

Predisposing Individual Characteristics and Perinatal Outcomes of Women in the Tokyo Metropolitan Area Who Initiate Prenatal Care Late in Their Pregnancy: A Case-Control Study

1Department of Obstetrics and Gynecology, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
2Department of Pediatrics, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
3Department of Clinical Research and Informatics, National Center for Global Health and Medicine, Tokyo 162-8655, Japan

Received 2 May 2012; Accepted 26 June 2012

Academic Editors: M. C. Klein, A. Martin-Hidalgo, and C. J. Petry

Copyright © 2012 Jun Kakogawa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. The purpose of this study was to investigate the individual characteristics and perinatal outcomes of women who initiate prenatal care late in their pregnancy in the Tokyo metropolitan area. Methods. Retrospective study. The study enrolled all women at our hospital who initiated prenatal care after 22 weeks of gestation (late attenders) and control women who initiated prenatal care prior to 11 weeks of gestation participated in the study at the National Center for Global Health and Medicine between January 1, 2007 and June 30, 2011. We compared the maternal characteristics and perinatal outcomes of late attenders with those of the control group. Results. A total of 121 late attenders and 1,787 controls were enrolled. Late attenders had a higher incidence of unmarried compared with the control group ( 𝑃 < 0 . 0 1 ). There were no differences in the incidence of preterm delivery and low birth weight; however, babies of the late attenders had a higher incidence of admission to the neonatal intensive care unit compared with the control group ( 𝑃 < 0 . 0 1 ). Conclusions. Our results indicate that there is a pressing need for further steps to promote the importance of receiving prenatal care during pregnancy.