Table 4 Relationship of preBMI, AC, or ACHtR with gestational diabetes mellitus

PreBMI^a

1.13(1.12–1.15)

1.13 (1.12–1.15)

 < 18.5

164/2021 (8.1)

0.82(0.69–1.98)

0.99(0.83–1.20)

 ≥ 18.5 to < 24.0

1104/10382 (10.6)

1

1

 ≥ 24.0 to < 28.0

472/2456 (19.2)

1.87(1.66–2.10)

1.42 (1.22–1.65)

 ≥ 28.0

172/613 (28.1)

3.06 (2.53–3.70)

1.86 (1.45–2.38)

AC ^b (cm)

1.04 (1.03–1.05)

1.04 (1.04–1.05)

Q1 (< 74.0)

211/3270 (6.5)

0.58(0.50–0.68)

0.57(0.49–0.66)

Q2/Q3 (74.0–86.0)

1015/8687 (11.7)

1

1

Q4 (> 86.0)

686/3515 (19.5)

1.70(1.53–1.90)

1.72(1.54–1.91)

ACHtR

1.07 (1.06–1.07)*

N/A

Q1 (< 0.46)

253/3985 (6.3)

0.56(0.48–0.64)

N/A

Q2/Q3 (0.46–0.53)

929/7776 (11.9)

1

N/A

Q4 (> 0.53)

730/3711 (19.7)

1.68(1.51–1.90)

N/A