Table 1.

Baseline Characteristics of Participants; The B.A.B.Y. Study, 2007–2010

Variables	Total (n = 110)		Exercise arm		Health & wellness arm		P-valueb
	na	%	n	%	n	%
Age (years)
16–24	57	51.8	34	58.6	23	44.2	0.39
25–29	23	20.9	11	19.0	12	23.1
30–35	21	19.1	8	13.8	13	25.0
35–40	9	8.2	5	8.6	4	7.7
Ethnicity
Non-Hispanic white	41	39.8	24	44.4	17	34.7	0.31
Hispanic	62	60.2	30	55.6	32	65.3
BMI (kg/m2)
<18.5	0	0.0	0	0.0	0	0.0	0.20
18.5 to <25	2	1.8	2	3.4	0	0.0
25 to <30	44	40.4	20	34.5	24	47.1
≥30	63	57.8	36	62.1	27	52.9
Education
Less than high school	23	20.9	9	15.5	14	26.9	0.26
High school graduate	42	38.2	22	37.9	20	38.5
Post high school	45	40.9	27	46.6	18	34.6
Household income
≤$15,000	47	56.6	23	52.3	24	61.5	0.43d
>$15,000–$30,000	13	15.7	9	20.5	4	10.3
>$30,000	23	27.7	12	27.3	11	28.2
Marital status
Single/separated/divorced/widowed	82	74.5	40	69.0	42	80.8	0.19
Married	28	25.5	18	31.0	10	19.2
Live with spouse/partner
No	39	35.5	16	27.6	23	44.2	0.07
Yes	71	64.5	42	72.4	29	55.8
Prepregnancy cigarette smoking
No	75	68.8	41	71.9	34	65.4	0.46
Yes	34	31.2	16	28.1	18	34.6
Early pregnancy cigarette smoking
No	95	88.0	50	89.3	45	86.5	0.66
Yes	13	12.0	6	10.7	7	13.5
Adults (≥18 yrs) in householdc
1	24	22.0	8	14.0	16	30.8	0.11
2	53	48.6	30	52.6	23	44.2
≥3	32	29.4	19	33.3	13	25.0
Children (<18 yrs) in householdc
0	23	21.1	13	22.8	10	19.2	0.44
1	48	44.0	28	49.1	20	38.5
2	29	26.6	13	22.8	16	30.8
≥3	9	8.3	3	5.3	6	11.5

^aNumbers may not total to 110 due to missing data.

^bP-values from Chi-square tests for categorical variables or Fisher’s Exact test if the expected cell count was <5 (ie, age, marital status, early pregnancy smoking, and children in household).

^cIncluding the participant as appropriate: if <18 yrs, include as a child; if > 18 yrs, included as an adult.

^dCalculated after excluding participants who reported ‘Do not know.’