Table 1: Demographic characteristics of study participants ( ).

No. (%)

Mothers
Age (years)
 18–24130 (45.3)
 25–2995 (33.1)
 30–3442 (14.6)
 35–4520 (7.0)

Race/Ethnicity
 White5 (1.7)
 Latino278 (96.9)
 Other4 (1.4)

Education
 ≤6th grade121 (42.2)
 7–12th grade105 (36.6)
 ≥High School61 (21.3)

Income (% poverty)
 <100171 (59.6)
 100–200105 (36.6)
 >20011 (3.8)

Country of birth
 United States32 (11.1)
 Mexico251 (87.5)
 Other4 (1.4)

Time in the USA (years)
 ≤5156 (54.4)
 6–1069 (24.0)
 ≥1162 (21.6)

Parity
 0 91 (31.7)
 ≥1196 (68.3)

Smoking during pregnancy
 No271 (94.4)
 Yes16 (5.6)

Alcohol during pregnancy (≥one serving)
 No282 (98.3)
 Yes 5 (1.7)

Children
Sex
 Boy140 (48.8)
 Girl147 (51.2)

Birthweight (g)
 <2500 g 10 (3.5)
 2500–3500 g149 (51.9)
 >3500 g128 (44.6)

Gestational duration (weeks)
 <37 21 (7.3)
 37–42266 (92.7)
 >42 0 (0.0)