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Table 3 Maternal characteristics for HBV DNA levels of HBsAg positive women

From: Association between maternal hepatitis B virus carrier and gestational diabetes mellitus: a retrospective cohort analysis

  < 103 IU/mL (n = 653) 103 − 106 IU/mL (n = 315) > 106 IU/mL (n = 282) P value
Age (years) 28.23 ± 3.59 26.93 ± 3.38 29.14 ± 4.11 < 0.05
 < 35 551 (80.5%) 277 (87.9%) 232 (82.1%) 0.82
 ≥ 35 102 (15.6%) 38 (12.1%) 50 (17.9%) < 0.05
Gravidity 1.68 ± 1.31 1.32 ± 1.12 1.17 ± 1.69 0.42
Parity 0.30 ± 0.78 0.39 ± 0.57 0.60 ± 0.45 0.07
Pre-pregnancy body mass index (kg/m2) 21.24 ± 4.02 22.35 ± 1.58 23.01 ± 1.59 0.05
Underweight (< 18.5) 221 (8.7%) 3725 (10.2%) 28 (9.8%) 0.59
Normal weight (18.5–23.9) 2128 (65.3%) 22,078 (60.5%) 167 (59.4%) 0.13
Overweight (24–27.9) 528 (18.1%) 8383 (23.0%) 64 (22.6%) < 0.05
Obesity (≥ 28) 162 (7.9%) 2314 (6.3%) 23 (8.2%) 0.71
GDM 48 (7.4%) 55 (9.5%) 53 (11.6%) < 0.05