Table 1.

Description of the Control and ART groups

	Control group n = 44	ART group n = 44
Maternal age (years) (mean / SD)	33/3. 8	34. 5/4. 3
Paternal age (years) (mean / SD)	36/5. 3	37. 4/7
Maternal BMI (mean / SD)	24/4. 9	24. 6/4. 5b
Smoking status during pregnancy S/SSP/NSa	3/8/33	3/7/34
Obstetrical issues
Normal	33	32
Prematurity alone	6	1
Gestational diabetes (GD) alone	3	4
Pre-eclampsia alone	2	3
Pre-eclampsia + prematurity	0	3
Pre-eclampsia + GD	0	1
Delivery route (Vaginal/C section)	31/13	30/14
Gestational age (weeks) (mean / SD)	38. 7/1. 5	38. 6/1. 6
Infant sex (M/F)	23/21	24/20

^aS = smoking during pregnancy, SSP = stopping smoking before pregnancy, NS = no smoking.

^b3 BMI unknown.