Objective: To determine the effect and rate of adverse obstetrical and perinatal out-comes   due to occupational factors and effects of sociodemographic factors, work characteristics, and type of occupation on obstetrical and perinatal outcomes in pregnant working women. Study design: A Hospital-based observational study, conducted over one year and six months at a tertiary care center, AIIMS Rishikesh among pregnant women who were working at AIIMS Rishikesh.  Results: Out of 90 working women, 9 (10%) had an abortion, 7 (8.6%) developed anemia,  15 (18.5%) developed hypothyroidism, 15 (18.5%) had intrahepatic cholestasis of pregnancy  (IHCP), 12 (14.8%) had pregnancy-induced hypertension (PIH), 9 (11.1%) had gestational  diabetes Mellitus (GDM), 7 (8.6%) had intrauterine growth retardation (IUGR), 6 (7.4%) had    oligohydramnios, 12 (14.8%) had a preterm birth (PTB), 16 (19.8%) had small for gestational  age (SGA), 5 (6.2%) had antepar-tum hemorrhage (APH), 9 (11.1%) had premature rupture  of membrane (PROM), 1 (1.2%) had a stillbirth and 17 (21%) had low birth weight (LBW).   Elderly gravida, preobese/obese, urban, and stressed women were at high risk for PIH,  FGR, SGA, and  GDM. Conclusion: In working women,  adverse pregnancy outcomes such as  abortion, PIH, GDM, PTB, SGA, etc.
were reported. The main occupational  predictors among health professionals  for adverse pregnancy outcomes were
advanced age, higher BMI, urban  residency, upper or upper-middle socioeconomic class, long working hours, shift
duties including night, more physical  activity, and moderate stress levels