Our findings were not consistent with a recent Cana- dian study .... Urinary. Bisphenol-A (BPA) was measured using liquid chromatography/electron cap-.
O-222 Wednesday, October 21, 2015 12:30 PM DISCRIMINANT ANALYSIS FORECASTING MODEL OF FIRST TRIMESTER PREGNANCY OUTCOME FOLLOWING 5054 INFERTILE PATIENTS AFTER IVF-ET. Y. Yi,a X. Li,b Y. Ouyang,c G. Lu.c a Institute of Reproduction & Stem Cell Engineering, Central South University, Changsha, China; bReproductive and Genetic hospital of CITIC-Xiangya, Chang-sha, China; cCentral South University, Changsha, China. OBJECTIVE: To investigate whether ultrasound indicators of embryo on 27th -29th day after IVF-ET are different between 1st trimester miscarriage group and ongoing pregnancy group and to build discriminant analysis forecasting model to predict 1st trimester pregnancy outcome. DESIGN: Prospective study. MATERIALS AND METHODS: 5054 single pregnancy female were recruited after IVF-ET over a period of 18 months. Maternal age, infertility duration and number of IVF cycles of these patients were collected. Transvaginal ultrasound was performed for these patients to observe MSD (Mean Sac Diameter ), CRL (Crown-Rump Length), YSD (Yolk Sac Diameter), embryonic cardiac activity and fluid collection around GS (Gestational Sac) on 27th -29th day after IVF-ET. Then 1st trimester pregnancy outcome of these patients were followed up. Characteristics and Ultrasound parameters of these patients were compared by Two Sample t Test or Chi-Squared Test between 1st trimester miscarriage group (n¼679) and ongoing pregnancy group (n¼4375). Forecasting model was built by discriminant analysis to predict 1st trimester pregnancy outcome. The difference was statistically significant when P < 0.05. RESULTS: Maternal age (32.575.06 VS 30.364.29 years ), infertility duration (6.014.13 VS 5.273.50 years) and number of cycle (1.330.81 VS 1.190.55) were all significant higher in 1st trimester miscarriage group than those in ongoing pregnancy group (P
