Study | Sample | Study design | BMI categories | Outcomes | Odd ratios (95% CI) | ||
---|---|---|---|---|---|---|---|
Underweight | Overweight | Obese | |||||
Lei et al. [56] | 5535 | Prospective cohort study | APS | PTB | 1.00(0.77, 1.30) | 1.54(1.14, 2.08) | 1.42(1.02, 1.97) |
SGA | 1.62(1.13, 2.34) | 0.71(0.38, 1.34) | 0.69(0.34, 1.37) | ||||
LGA | 0.65(0.52, 0.82) | 1.32(1.02, 1.71) | 2.35(1.81, 3.04) | ||||
Neonatal asphyxia | 1.60(0.80, 3.19) | 0.99(0.34, 2.85) | 2.38(1.06, 5.30) | ||||
Du et al. [57] | 3772 | Retrospective cohort study | WGOC | Macrosomia | 0.38(0.21, 0.68) | 2.90(1.99, 4.23) | 6.3(3.42, 11.47) |
SGA | 1.86(1.39, 2.50) | 0.43(0.25, 0.74) | 0.54(0.21, 1.40) | ||||
LGA | 0.41(0.27, 0.63) | 2.23(1.66, 2.99) | 3.99(2.41, 6.60) | ||||
Pan et al. [58] | 536,098 | Prospective cohort study | WGOC | PTB | 1.16 (1.08, 1.25) | 1.01(0.92, 1.10) | 1.18 (0.99, 1.4) |
LBW | 1.57 (1.4, 1.77) | 1.22 (1.05, 1.42) | 1.60 (1.2, 2.12) | ||||
Li et al. [59] | 48,867 | Retrospective cohort study | WHO | SGA | 1.66 (1.44, 1.91) | 0.73 (0.59, 0.91) | 1.09 (0.67, 1.77) |
LGA | 0.54 (0.47, 0.62) | 2.55 (2.32, 2.80) | 3.95 (3.20, 4.87) | ||||
Bao et al. [60] | 13,711 | Retrospective cohort study | WHO | Macrosomia | – | 2.17 (1.60, 2.94) | 5.81 (4.26, 7.92) |
Huang et al. [61] | 3081 | Prospective cohort study | WGOC | SGA | 1.67 (1.25, 2.23) | 0.91 (0.56, 1.47) | |
LGA | 0.61 (0.44, 0.83) | 1.50 (1.11, 2.04) | |||||
Jiang et al. [62] | 2241 | Retrospective cohort study | WGOC | PTB | – | 1.18 (0.41, 2.12) | 2.35 (0.89, 3.98) |
SGA | – | 0.76 (0.45, 0.99) | 1.02 (0.67, 1.76) | ||||
LGA | – | 1.56 (1.01, 2.31) | 1.71 (1.07, 3.20) | ||||
Fetal distress | – | 0.67 (0.34, 1.39) | 0.31 (0.08, 1.35) |