ObjectiveTo identify the prevalence of orange (higher) risk referred to as orange risk) and distribution of orange risk factors among early pregnant of delivering women in Anhui province during 2021, in order to provide reference for strengthening pre-pregnancy and early pregnancy care and treatment.

MethodsAccording to geographic location, 4 of 16 cities in Anhui province were chosen.Pregnancy risk assessment and relevant information on delivering women in 2021 were collected from Anhui Maternal and Child Health Information System.

ResultsThere were 42 321 delivering women in 2021 with risk assessment results during early pregnancy.Among them, 5 092 were assessed as orange risk (12.03%).The prevalence of orange risk was 17.92% in the east, 14.26% in the south, 13.61% in the middle part and 6.21% in the north (P < 0.01).The women of first delivery were different from those with second and more delivery in terms of age, occupation, citizenship, location (P < 0.05 to P < 0.01).The distribution of the 3 types of orange risk factors among women of first delivery was different from those of second and upper delivery (P < 0.01).Among the 35 orange risk factors, 29 were detected (82.86%).The factors comprising more than 10% were, in order of prevalence: BMI≥28 kg/m² (47.05%), drug-treated diabetes mellitus, thyroid disease and prolactinoma (20.35%), uterus surgery ≥2 times (11.66%), and age ≥40 year-old (10.25%).

ConclusionsIn Anhui province, the detection rate of orange risk among early pregnancy of delivering women in 2021 is high, with significant regional differences, and the categories of orange risk factors in early pregnancy are inverted, with a high proportion of category 1 and category 2 factors and nearly half of obesity.Pre-pregnancy and early pregnancy health care and medical services should be strengthened to continuously reduce the number of women with category 1 and 2 orange risk factors in early pregnancy and effectively reduce the incidence of orange risk in early pregnancy.