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. 2010 Jun 1;10:10. doi: 10.1186/1472-698X-10-10

Table 2.

Differences among selected sociodemographics and health indicators by income level (n = 744)1,2

Group 1 Group 2 Group 3
<1 USD/day 1-2 USD/day >2 USD/day
(n = 140) (n = 252) (n = 352)
Studied variables Mean (SD) Mean (SD) Mean (SD) p-value

Mean monthly household income (USD) 23.4 (6.6) 47.0 (8.8) 117.4 (72.5) <0.001a
Mother's education (yrs) 4.1 (3.1) 4.8 (3.0) 7.1 (3.8) <0.001a
Child height for age z-scores (HAZ) -1.51 (1.65) -1.42 (1.58) -0.09 (1.58) <0.001a
number and % <-2HAZ 52 (37.7%) 89 (34.5%) 86 (24.0%) <0.001b
Distance to the nearest health facility % % %
 <30 minutes on foot 42.9 39.5 60.6 <0.001b
 ≥ 30 minutes on foot 29.3 36 23.7
 Not walking distance 27.8 24.5 15.7

112 mothers did not answer about monthly income.

2We examined all other socio-demographics and child health status showed in Table 1.

Except above variables, others did not show any significant associations among 3 income groups.

aANOVA (analysis of variance)

bChi-square test