Table 3.

Pregnancy outcomes according to BMI category. Gestational age at birth (years), birth weight (grams) are expressed as mean (±SD) or sample size (%)

	Underweight	Normal weight	Overweight	Obese
	n = 98	n = 1061	n = 331	n = 117
BMI	17.5 (±0.855)	21.7 (±1.72)	26.9 (±1.36)	33 (±2.64)
Gestational age (years)	39 (±1.7)	39 (±1.6)	39 (±2)	39 (±2.2)
Birth weight (grams)	3177 (±522)	3277 (±492)	3296 (±591)	3355 (±488)
Apgar score at 1’	8.43 (±1.1)	8.54 (±0.9)	8.47 (±0.86)	8.33 (1±.11)
Apgar score at 5’	9.09 (±0.774)	9.07 (±0.965)	8.98 (±1.25)	9.01 (±0.704)
Delivery mode (n, %)
-Vaginal	59 (59.00 %)	520 (49.10 %)	152 (45.92 %)	62 (52.99 %)
-Caesarean	37 (37.00 %)	507 (47.87 %)	168 (50.75 %)	52 (44.44 %)
-Instrumental	4 (4.00 %)	32 (3.02 %)	11 (3.32 %)	3 (2.56 %)