Table 1.

Characteristics of study participants.

Characteristic	n	Mean	Median	SD	Minimum	Maximum
Age (years)	31	31.2	32.4	6.6	19.9	42.6
Height (cm)	28	65.1	65.0	2.8	60.0	70.0
Body mass (kg)	29	173.3	170.0	37.0	115.0	270.0
BMI (kg/m2)	26	28.4	28.7	5.4	18.8	40.5
Gravidity	31	2.75	3	2.32	0	10
Breastfeeding (months)*	30	3.9	0.0	7.8	0.0	30.0
Smoking**	31	41.9% no; 58.1% yes
Alcohol consumption**	31	64.5% no; 35.5% yes
Caffeine**	31	80.6% no; 19.4% yes

^*Total duration of breastfeeding summed across all pregnancies

^**Smoking, alcohol and caffeine consumption were dichotomized to 1 (no) or 2 (yes); see Materials & Methods for details.