Self-reported weight before delivery minus self-reported prepregnancy weight
Total GWG (kg) (i) <6.8 (ii) 6.81–11.34 (iii) 11.35–15.88 (ref) (iv) 15.89–20.42 (v) ≥20.43
BMI -score based on measured height and weight Early-onset OW: BMI ≥95th PCTL persisted from 2 to 8 years Late-onset OW: BMI ≥95th PCTL starting at 8 years (CDC)
Maternal age, alcohol consumption during pregnancy, education, family net income0 and prepregnancy BMI, and smoking during pregnancy; child’s birth order, birth weight, birth year, breastfeeding, gestational age, race, and sex
Medical record retrieved last prenatal weight minus self-reported prepregnancy weight
Total GWG (kg) Net GWG (total GWG minus infant birth weight) IOM 1990 (i) Excessive (ii) Adequate (iii) Inadequate (ref)
BMI -score based on measured height and weight OW: BMI ≥95th PCTL (CDC)
Mother’s glucose tolerance, marital status, prepregnancy BMI, SES, smoking, and race; paternal BMI; and child breastfeeding duration, cesarean section, daily television viewing time, fast food and sugar beverage intake, gestational fetal growth, gestational length, and sex
Total GWG (lbs) IOM 1990 (i) Excessive (ii) Adequate (Ref) (iii) Inadequate
BMI -score based on self-reported height and weight OW: BMI 85th to ≤95th PCTL OB: BMI >95th PCTL (CDC)
Maternal age, education, SES, gestational diabetes, marital status, prepregnancy BMI, smoking, and paternal education; and child age in 1996, birth weight, breastfeeding, daily sugar sweetened beverage intake, fried food away from home, gestational age, maturity, hours of TV and video, physical activity, and race
Measured weight at last prenatal visit minus first measured weight in the first trimester
Net GWG (kg)
BMI -score based on self-reported height and weight OW: BMI 85th to <95th PCTL OB: BMI ≥95th PCTL (CDC)
Maternal overweight at early pregnancy, SES, smoking during pregnancy, and SES; child birth weight, breastfeeding for at least 6 months, and gestational age
Total GWG (lbs) (i) <10 (ii) 10–14 (iii) 15–19 (Ref) (iv) 20–29 (v) 30–40 (vi) >40
BMI based on measured height and weight OW: BMI ≥25 to <30 kg/m2 OB: BMI >30 kg/m2 (CDC)
Maternal age at child birth, prepregnancy BMI, maternal age at child’s birth, nausea and smoking during pregnancy, family history of diabetes, parental BMI and education level, and mother living with father at time of child’s birth; child birth weight and birth order
Measured weight at last prenatal visit minus measured weight at first prenatal visit
Rates of GWG (g/week) IOM 2009 (i) Excessive (ii) Adequate (Ref) (iii) Inadequate
BMI based on measured height and weight (IOTF)
Maternal age, delivery mode, parity, prepregnancy BMI, parity, smoking during pregnancy, SES, and GWG in the previous pregnancy; child birth weight and gestational age
Self-reported weight at delivery minus self-reported prepregnancy weight
Total GWG (kg) IOM (2009) (i) Excessive (ii) Adequate (Ref) (iii) Inadequate
BMI -score based on parent-reported or measured height and weight OW: BMI ≥85th PCTL (CDC)
Maternal age, education, poverty status, length of gestation, prepregnancy BMI, and race, smoking during pregnancy; child sex and year of birth; and weighted for sampling proportion
Total GWG (kg) (i) <6 (ii) 6–8 (iii) 9–10 (iv) 11-12 (v) 13–15 (vi) ≥16 kg The values of 5.5, 7.0, 9.5, 11.5, 14.0, and 16.5 were assigned mid-points to get continuous GWG
BMI -score based on measured height and weight (British 1990 growth chart)
Maternal age, edema during prepregnancy, marital status, SES, and smoking during pregnancy; parental education, prepregnancy BMI, and prematurity; and child birth weight, gestational age, and sex
Total GWG rates of GWG [kg in early (12–20 weeks) and mid-pregnancy (25–32 weeks)]
BMI -score based on parent-reported height and weight (IOTF)
Maternal age, parity, smoking during pregnancy, prepregnancy BMI, SES, and paternal BMI; child age, birth weight, breastfeeding, gestational age, weight at 5 and 12 months, and sex
Total GWG from birth certificates (81%) plus maternal report (19%) at 9-month postpartum
Total GWG (kg)
BMI -score based on measured height and weight OW: BMI 85th to <95th PCTL. OB: BMI ≥95th PCTL (CDC)
Maternal age, race, parity, marital status, education, participation in special supplement nutrition program for women and child, smoking at the last 3 months of pregnancy, and postpartum exercise habits; child’s exercise habit; and child birth weight, breastfeeding, gestational age, sugar-sweetened beverage intake, fast food intake, and TV viewing
Medical record retrieved last prenatal weight minus self-reported prepregnancy weight
Total GWG trimester-specific rates of GWG
BMI -score based on measured height and weight OW: BMI ≥85th PCTL (CDC)
Maternal age, education, marital status, parity, prepregnancy BMI, smoking during pregnancy, and race; paternal overweight; and child gestational age, and sex
Self-reported weight at 30-week pregnancy minus self-reported prepregnancy weight
GWG at 30-week gestation (kg)
BMI based on parent-reported height and weight
Maternal age, education, exercise habit, parity, prepregnancy BMI, smoking during pregnancy, and paternal BMI; child birth weight, breastfeeding at 6 month, types of day care, hours in screen-based activities, and sex
Self-reported weight at delivery minus self-reported prepregnancy weight
Net GWG (adjusted for gestational age) (kg) IOM 2009 (i) Excessive (ii) Adequate (Ref) (iii) Inadequate
BMI -score based on medical record retrieved height and weight (CDC)
Maternal age, gestational diabetes and hypertension, insurance status, marital status, parity, preeclampsia, prepregnancy BMI, diabetes, hypertension, race, and smoking during pregnancy; child age and child born to same mother
BMI = body mass index; CDC = Center for Disease Control and Prevention; GWG = gestational weight gain; IOM = Institute of Medicine; IOTF = International Obesity Task Force; mixed = mixed cohort; NW = normal weight; OB = obese; OW = overweight; PCTL = percentile; pros = prospective cohort; Ref = referent group; retro = retrospective cohort; SES = socioeconomic status; UW = underweight; and WHO = World Health Organization.