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. 2016 Nov 16;15:186. doi: 10.1186/s12939-016-0477-7

Table 7.

Decomposition of the Concentration Index for Negative Height-for-age Z scores (1996/97 & 2014)

Variables Coefficients & p-values Elasticities Concentration Index (C) Contributions to C (%)
1996/97 2014 1996/97 2014 1996/97 2014 1996/97 2014 Change
Child’s age 0.097 0.00 0.112 0.00 1.21 2.13 −0.006 −0.009 10.11 16.20 6.09
Child’s age squared −0.001 0.00 −0.002 0.00 −0.63 −1.53 −0.006 −0.016 −5.10 −21.35 −16.25
Birth Order 0.001 0.94 0.007 0.72 0.00 0.01 −0.042 −0.083 0.08 0.69 0.62
Antenatal visit to doctor −0.129 0.06 −0.144 0.00 −0.01 −0.05 0.364 0.199 5.66 9.42 3.76
Delivery at health facility 0.068 0.55 −0.082 0.09 0.00 −0.02 0.639 0.302 −1.09 5.32 6.41
Early initiation of breastfeeding −0.100 0.12 0.085 0.07 −0.01 0.03 0.062 −0.055 0.67 1.39 0.73
Maternal Schooling (years) −0.041 0.00 −0.025 0.02 −0.04 −0.10 0.408 0.188 23.28 15.79 −7.49
Paternal Schooling (years) −0.029 0.00 −0.012 0.11 −0.04 −0.04 0.343 0.260 20.27 9.73 −10.54
Maternal CED (Chronic Energy Deficiency) 0.162 0.00 0.126 0.02 0.04 0.02 −0.101 −0.246 5.18 3.94 −1.25
Maternal short stature (<145 cm) 0.543 0.00 0.649 0.00 0.04 0.05 −0.042 −0.150 2.59 7.04 4.45
Wealth Index −0.163 0.00 −0.120 0.00 −0.34 −0.39 0.074 0.105 36.07 35.48 −0.59
Total 97.71 83.64 −14.08

Note: N = 3288 for 1996/97 and 3884 for 2014. OLS regression. Standard errors used take into account sampling weights. In addition to the variables reported, all regressions control for division-specific fixed effects. Antenatal visit to doctor, delivery at health facility, early breastfeeding, and maternal CED and short stature are all dummy variables