Table 2.

Birth parameters according to BMI categories.

		BMI categoriesa						p value
		1	2	3	4	5	6
Total	BW z-score	−0.36	−0.03	0.18	0.27	0.41	0.50	<0.001
	BL z-score	−0.24	−0.08	0.03	0.10	0.17	0.20	<0.001
	HC z-score	−0.34	−0.15	0.00	0.12	0.26	0.39	<0.001
GDM	BW z-score	−0.83	−0.12	0.26	0.46	0.55	1.03	<0.001
	BL z-score	−0.05	−0.09	0.26	0.20	0.29	0.54	<0.01
	HC z-score	−0.46	−0.14	0.04	0.19	0.33	0.69	<0.001
No GDM	BW z-score	−0.35	−0.03	0.18	0.25	0.39	0.43	<0.001
	BL z-score	−0.25	−0.08	0.02	0.09	0.15	0.16	<0.001
	HC z-score	−0.34	−0.15	0.00	0.12	0.25	0.35	<0.001

z-scores reported in means.

BW, birth weight; BL, birth length; HC, head circumference.

^aBMI category 1: <18.5 kg/m²; 2: 18.5–24.9 kg/m²; 3: 25–29.9 kg/m²; 4: 30–34.9 kg/m²; 5: 35–39.9 kg/m²; 6: ≥40 kg/m².