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. 2013 Aug 12;12:58. doi: 10.1186/1475-9276-12-58

Table 5.

Distributions of actual need-predicted and need-standardized health care use for year 2006

Probability of using medical care
 
Probit with controls
Need-standardized
 
 
 
 
With controls
Without controls
Quintile Actual Need Predicted Difference= predicted-actual Probit OLS Probit OLS
Poorest 20%
0.256
0.330
−0.073
0.229
0.230
0.232
0.232
2nd poorest 20%
0.276
0.313
0.037
0.265
0.266
0.267
0.267
Middle
0.271
0.297
0.026
0.277
0.276
0.276
0.276
2nd richest 20%
0.332
0.293
0.040
.342
0.342
0.342
0.342
Richest 20%
0.389
0.281
0.108
0.411
0.410
0.408
0.408
Mean
0.305
0.303
0.002
0.305
0.305
0.305
0.305
Concentration
0.089
0.033
 
0.121
0.120
0.118
0.117
Index/HIwv
 
 
 
 
 
 
 
Standard error
0.013
0.004
 
0.013
0.013
0.013
0.013
t-ratio 6.644 −8.028   9.469 9.404 9.234 9.219

Survey: Satisfaction and Out-of-Pocket Payment Survey (2006).