Table 3.

Percentage Contribution (%) of variables to CI by outcome in the first and last wave.

	PHI	Medicine Use	PHI Expenditures	Medicine Expenditures	Total Expenditures
	12 M	12 M	12 M	12 M	12 M
Income/Asset Index	63.71	52.64	82.03	86.57	82.94
Health	−0.29	−45.42	−0.70	−32.66	−8.63
Mother's education	25.21	51.57	15.23	19.04	18.23
Need Others	5.65	−3.50	8.68	3.74	5.75
Non-Need Others	0.70	6.80	−4.09	6.07	−0.26
PHI	–	25.08	–	19.71	–
Residual	5.01	12.83	−1.16	−2.48	2.00
	72 M	72 M	72 M	48 M	48 M
Income/Asset Index	51.44	54.12	95.93	70.51	76.44
Health	−0.33	−66.26	−0.24	−20.61	−6.61
Mother's education	40.59	56.95	8.35	17.39	18.98
Need Others	7.33	−7.38	9.78	3.23	5.39
Non-Need Others	0.98	13.41	−5.20	4.84	−0.27
PHI	–	41.04	–	16.37	–
Residual	−0.01	8.12	−8.63	8.28	6.17

Notes: The groups correspond to the sum of percentage contributions of variables. Income/Asset index includes these two variables. Health includes reported health, wheezing chest, chronic disease, low birthweight, hospitalization, earache, pneumonia, and urinary infection. Mother's Education only includes mother's education. Need Others includes breastfeeding, mother's age, smoked during pregnancy, and sex. Non-Need Others includes mother's race and mother lives with a partner. PHI only includes private health insurance. The PHI variable was not included in the decomposition of total expenditures because this variable contains PHI expenditures in its composition.