The article presents the results of a study of 256 pregnant women between the ages of 28 to 40 years old with gestational age from 28 to 41 weeks. All the women had overweight varying severity: overweight (BMI 25-29.9-kg/m 2 ) - at 18, obesity 1st degree (BMI 30-34.9 kg/m 2 ) - at 67, obesity 2nd degree (BMI 35-39.9 kg/m 2 ) - at 96, obesity 3rd degree (BMI - ≥34.9 kg/m 2 ) - at 75 patients. Had conducted a study of the diagnostic and prognostic significance of risk factors for complications. Were conducted replace of group of diagnostic parameters for one integral indicator of high information content. Thus, based on a survey prena-tal pregnant women with overweight and obesity should be based on an integrated system of multivariate prediction of the risk of complications. The integrated system of multivariate forecasting the risk of compli-cations during delivery and anesthesia in patients with obesity allows a high degree of reliability to establish individual risk, timely to conduct the complex therapeutic and preventive measures, to determine the optimal obstetric and anesthetic tactics, eliminate possible tactical mistakes.