TABLE 2.

Baseline demographic and clinical characteristics by feeding group

	Control (n = 74)	sn-2 (n = 72)	sn-2+3g/L OF (n = 75)	sn-2+5g/L OF (n = 75)	HM (n = 73)
Infant characteristics
Age at enrollment, days*	11.3 ± 2.0‡	11.0 ± 2.0	10.9 ± 2.0	11.0 ± 2.1‖	10.3 ± 2.3
Gestational age, wk*	38.9 ± 1.0	38.9 ± 1.0	38.8 ± 1.1	39.0 ± 1.1	38.8 ± 1.1
Sex, % male	51	47	52	49	48
Maternal characteristics
Age, y*	27.2 ± 6.9	26.3 ± 5.9	26.9 ± 5.8	26.7 ± 6.1	26.5 ± 5.9
Marital status, % married¶	37	49	45	47	40
Education, % completed college§	18	17||	13	25‡	7
Occupation, % homemaker#	34†	33†	29†	31†	74

Comparisons between formula groups were conducted using analysis of variance (for continuous variables) or Fisher exact test/chi-square test (for categorical variables); comparisons between the HM group and each formula group were conducted using a series of independent t tests or Fisher exact test. Each formula group versus HM: ^†P < 0.001, ^‡P < 0.01, ^||P < 0.05. OF = oligofructose; sn-2 = high sn-2 palmitate infant formula.

^*Mean ± standard deviation.

^¶Group distribution across 4 marital status categories (eg, married, single, separated, widowed) used for statistical comparisons between groups.

^§Group distribution across 6 educational categories (eg, some high school, completed high school, some college) used for statistical comparisons between groups.

^#Group distribution across 11 occupational categories (eg, professional, technician/associate professional, service/shop/market sales) used for statistical comparisons between groups.