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Table 5 Decomposition of concentration indices for under-five stunting in the TDHS 2004/5, 2010 and 2015/6

From: Inequalities in stunting among under-five children in Tanzania: decomposing the concentration indexes using demographic health surveys from 2004/5 to 2015/6

Variables Stunting (height for age < 2 SD)
TDHS 2004/5 TDHS 2010 TDHS 2015/6
CIX % CIX % CIX %
Residence area −0.07 −2.66   −0.07 − 23.58 − 0.086 −13.65
Child age in (months) − 0.003 3.15   − 0.005 3.5 − 0.005 − 0.007
Child sex 0.0002 −0.04   −0.002 − 0.23 − 0.002 −0.4
Mother education (years) −0.18 9.51   0.19 21.97 0.21 36.63
Wealth index 0.27 93.3   0.27 88.86 0.28 71.48
Household size −0.04 −2.02   −0.004 − 0.13 − 0.08 −5.42
Skilled birth attendant 0.16 22.7   0.009 −0.25 0.18 17.55
Place of delivery 0.06 −3.5   0.07 22.76 0.07 16.2
Residuals −0.1781 −20.44   −0.476 −12.9 −0.663 − 22.38
Total 0.0193 100   −0.018 100 −0.096 100
  1. % represents the percentage contribution of each determinant’s CIX to the overall CIX
  2. TDHS represents Tanzania Demographic and Health Surveys