Twin Pregnancy; Body Mass Index; Weight Gain; Pregnancy Outcome
Conditions
Brief summary
Prepregnancy body mass index (BMI) and gestational weight gain (GWG) have Significant effects on the risk of pregnancy outcomes such as gestational hypertension disease and gestational diabetes mellitus in singleton pregnancies. This paper is to investigate the relationship between pre-pregnancy body mass index (BMI) and weight gain during pregnancy and pregnancy outcomes in women with twin pregnancy.
Interventions
a standardized and structured questionnaire that included information on age, residence, education, pregnancy history, disease history, height, and conception method, after obtaining the consent of all participants.
Sponsors
Study design
Eligibility
Inclusion criteria
* Age 18 \ 41 years old; * The gestational age of the first diagnosed twin pregnancy is ≤10weeks; * Double chorionic double amniotic sac pregnancy;
Exclusion criteria
* with heart disease, liver disease, kidney disease, complications (chronic hypertension, hyperthyroidism, diabetes and others ), genetic diseases, psychological and mental diseases; * with history of habitual abortion and cervical insufficiency;
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| the incidence of gestational diabetes mellitus, gestational hypertension and small for gestational age | 35 weeks to 40 weeks gestation | pregnant outcome |
Countries
China