Factors Influencing Primary Cesarean Delivery after Trial of Labour-ปัจจัยที่มีผลต่อการผ่าตัดคลอดในหญิงตั้งครรภ์ครรภ์แรกหลังจากพยายามดำเนินการคลอด ทางช่องคลอด

Abstract

        This research was case-control study. The objective was to determine factors influencing the decision to perform primary cesarean section after trial of labor.  Medical records of 211 pregnant women, devivering their newborns at Pathum Thani hospital during October 1, 2006 September 30, 2007 were reviewed.  In data analysis, chi-square and odd-radio were employed.  Result of this research established 3 factors as associated with more chances to undergo cesarean section, fetal station at admission less than -2 (OR. 2.92, 95% CI 1.58, 5.40), difference of fetal station after admission less than 1 (OR. 20.44, 95% CI 2.68, 155.80) and infant birth weight over 3,500 gram (OR. 4.86, 95% CI 2.17,10.86)

Key words:   cesarean section, infant birth weight