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Table 4 Inequality decompositions for SBA and PNC (within 2 months after birth)

From: Equity of access to maternal health interventions in Brazil and Colombia: a retrospective study

  SBA PNC
Elasticities Concentration indices Contributions to C Contributions to C (%) P values Elasticities Concentration indices Contributions to C Contributions to C (%) P values
Mother’s age −0.0082 0.0429 −0.0004 −1.70% 0.618 0.5588 0.0422 0.0236 8.59% 0.006
Wanted pregnancy −0.0004 0.0702 0.0000 −0.13% 0.837 −0.034 0.068 −0.002 − 0.86% 0.295
Number of total children born alive 0.0088 −0.0774 0.0007 3.33% 0.020 −0.1018 −0.0769 0.0078 2.85% 0.114
Married or in union 0.0039 0.0396 0.0002 0.75% 0.397 −0.0293 0.0387 −0.0011 − 0.41% 0.711
Race (white, non-white) −0.0004 0.1924 −0.0001 −0.39% 0.769 0.0036 0.1912 0.0007 0.25% 0.876
Mother’s years of schooling 0.0051 0.1333 0.0007 3.30% 0.356 0.2170 0.1327 0.0288 10.49% 0.014
Wealth index 0.0193 0.2479 0.0048 23.44% 0.003 0.4136 0.2473 0.1023 37.29% 0.000
Private health insurance plan −0.0017 0.4892 −0.0008 −4.13% 0.341 0.0797 0.4817 0.0384 14.00% 0.000
Benficiary of cash-transfer program ‘bolsa familia’ 0.0026 −0.3469 −0.0009 −4.44% 0.004 −0.0140 − 0.3432 0.0048 1.76% 0.467
Delivery in private hospital 0.0060 0.5611 0.0034 16.40% 0.000      
Delivery by a doctor       0.2118 0.0623 0.0132 4.81% 0.035
Region 0.0096 0.2345 0.0023 11.06% 0.001 0.1730 0.2344 0.0405 14.78% 0.000
Living in urban area (1 = urban, 0 = rural) 0.0069 0.0875 0.0006 2.95% 0.043 0.1423 0.0883 0.0126 4.58% 0.013
Concentration Index w/micro data    0.0103      0.2692   
0.0204 50.4% 0.2743 98.12%
Total Contribution     50.44%     98.12%
Total Contribution (only statistically significant values     52.74%     94.53%
  1. “In both the logit and probit models all the regressors are involved in computing the changes in probability”
  2. “for the logit model the rate of change in the probability of an event happening is given by ßjPi (1-Pi), where ßj is the (partial regression) coefficient of the jth regressor. But in evaluating Pi, all the variables included in the analysis are involved”
  3. “In the probit model, the rate of change in the probability is somewhat complicated and is given by ßj f (Zi), where f (Zi) is the density function of the standard normal variable and Zi = ß1 + ß2X2i + ... + ßkXki, that is, the regression model used in the analysis”
  4. SBA skilled birth assistance, PNC postnatal care