Table 2

Baseline data according to study group
Control group Intervention group
n= 259 n= 193
Characteristics Frequency (%)a Frequency (%)a P
Final child’s age, months b c 19.74 ± 2.08 20.32 ± 1.70 0.002*
Sex of the child 0.373
 Male 134 (51.74) 108 (55.96)
 Female 125 (48.26) 85 (44.04)
Maternal education, years b 0.805
 0-5 56 (22.05) 44 (23.04)
 ≥ 6 198 (77.95) 147 (76.96)
Paternal education, years b 0.794
 0-5 88 (36.51) 66 (35.29)
 ≥ 6 153 (63.49) 121 (64.71)
Household wealth index c 49.43 ± 20.55 50.54 ± 19.14 0.559
Household income, minimum wage per month 0.123*
 1 201 (80.40) 138 (74.19)
 ≥ 2 49 (19.60) 48 (25.81)
Mother had worked in the last 12 months b d 86 (33.59) 88 (45.83) 0.009*
Permanent economic support from father b 193 (75.39) 152 (79.58) 0.296
Mother possesses “Comer es primero” card b e 38 (14.84) 32 (16.67) 0.599
National origin of the mother 0.819
 Dominican 230 (89.49) 174 (90.16)
 Haitian 27 (10.51) 19 (9.84)
Piped water inside the house (or outside, rural) 114 (44.02) 78 (40.41) 0.444
Waste disposed in a nearby dump, river or glen 80 (33.90) 42 (23.33) 0.019*
More than 2 children aged 0–4 in the household 30 (11.58) 19 (9.84) 0.557
Father lives in the house with mother b 171 (66.80) 133 (69.27) 0.579
Maternal height, cm c 159.12 ± 6.43 159.03 ± 6.06 0.894
Maternal BMI, kg/m2 f 22.46 ± 1.20 22.27 ± 1.20 0.648
Maternal age, years f 23.28 ± 1.26 24.08 ± 1.26 0.125*
First born child 71 (27.41) 55 (28.50) 0.799
Desire for pregnancy 0.702
 Wanted to become pregnant at the time 89 (34.36) 63 (32.64)
 Wanted to wait or did not want more children 170 (65.64) 130 (67.36)
Birthweight, kg c 3.20 ± 0.59 3.18 ± 0.55 0.742
Low birthweight (< 2.5 kg) 19 (7.36) 18 (9.38) 0.443

* Variables with p<0.20 (to take into account in the regression models).

a The percentages are based on the number of completed responses for each particular variable.

b This variable was also measured in the 2007 questionnaire, and those data were analyzed here.

c The values presented are: average ± standard deviation.

d Has worked outside of the home or in the home making money.

e This is the principal food aid program of the government. It transfers money to poor families to purchase food. This variable has been included because of its potential impact on child growth.

f The presented values are: geometric mean ± geometric standard deviation, because the logarithmic transformation of the variable was necessary.

Navarro et al.

Navarro et al. BMC Public Health 2013 13:212   doi:10.1186/1471-2458-13-212

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