Table 1.

Demographic Characteristics of Study participants (n=301)

Maternal age, years, mean ± SD	27.7 ± 5.3
Maternal self-reported race/ethnicity, n (%)
White	77 (25.6)
Black	72 (23.9)
Hispanic	102 (33.9)
Asian/Pacific Islander	50 (16.6)
Maternal BMI status, n (%)
<25.0	188 (63.7)
25.0–29.9	76 (25.8)
≥30.0	31 (10.5)
Trimester specific rate of GWG, kg/wk, mean ± SD
1st Trimester	0.22 ± 0.18
2nd Trimester	0.30 ± 0.16
3rd Trimester	0.37 ± 0.16
Placental weight in grams, median (Q1-Q3)	423.00 (360.0–488.0)
Placental length in cm, median (Q1-Q3)	20.00 (18.5–22.0)
Placental width in cm, median (Q1-Q3)	17.00 (15.0–18.5)
Birth weight in grams, mean ± SD	3165.2 ± 450.5
Gestational age at delivery, weeks, mean ± SD	39.5 ± 1.1
Deliver Mode, n (%)
Vaginal	205 (68.1)
Cesarean section	96 (31.9)
Offspring sex, n (%)
Male	152 (50.5)
Female	149 (49.5)
Alcohol
Nondrinkers, n (%)	298 (99.0)
Drinkers, n (%)	2 (1.0)