From: Three methods to monitor utilization of healthcare services by the poor
Sample size | No. in the sample non-poor | Probability of detecting health facilities with 80% poor as adequate | Probability of detecting health facilities with 50% poor as inadequate | Provider Risk | Consumer Risk | Total classification error |
---|---|---|---|---|---|---|
(n) | (d) | (a) | (b) | (1-a) | (1-b) | (1-a)+(1-b) |
8 | 0 | 0.17 | 1 | 0.83 | 0 | 0.83 |
 | 1 | 0.50 | 0.96 | 0.50 | 0.04 | 0.54 |
 | 2 | 0.79 | 0.83 | 0.21 | 0.17 | 0.38* |
 | 3 | 0.94 | 0.64 | 0.06 | 0.36 | 0.42 |
12 | 0 | 0.07 | 1.00 | 0.93 | 0.00 | 0.93 |
 | 1 | 0.28 | 1.00 | 0.73 | 0.00 | 0.73 |
 | 2 | 0.56 | 0.98 | 0.46 | 0.02 | 0.48 |
 | 3 | 0.80 | 0.93 | 0.21 | 0.07 | 0.28 |
 | 4 | 0.93 | 0.81 | 0.07 | 0.19 | 0.27* |
 | 5 | 0.98 | 0.61 | 0.02 | 0.39 | 0.41 |
14 | 0 | 0.04 | 1 | 0.96 | 0 | 0.96 |
 | 1 | 0.20 | 1 | 0.80 | 0 | 0.80 |
 | 2 | 0.45 | 0.99 | 0.55 | 0.01 | 0.56 |
 | 3 | 0.70 | 0.97 | 0.30 | 0.03 | 0.33 |
 | 4 | 0.87 | 0.91 | 0.13 | 0.09 | 0.22* |
 | 5 | 0.96 | 0.79 | 0.04 | 0.21 | 0.25 |
19 | 0 | 0.01 | 1 | 0.99 | 0 | 0.99 |
 | 1 | 0.08 | 1 | 0.92 | 0 | 0.92 |
 | 2 | 0.24 | 1 | 0.76 | 0 | 0.76 |
 | 3 | 0.46 | 1 | 0.54 | 0 | 0.55 |
 | 4 | 0.67 | 0.99 | 0.33 | 0.01 | 0.34 |
 | 5 | 0.84 | 0.97 | 0.17 | 0.03 | 0.20 |
 | 6 | 0.93 | 0.92 | 0.07 | 0.08 | 0.15* |
 | 7 | 0.98 | 0.82 | 0.02 | 0.18 | 0.20 |
28 | 5 | 0.50 | 1 | 0.50 | 0 | 0.50 |
 | 6 | 0.68 | 1 | 0.32 | 0 | 0.32 |
 | 7 | 0.81 | 0.99 | 0.19 | 0.01 | 0.20 |
 | 8 | 0.91 | 0.98 | 0.09 | 0.02 | 0.11 |
 | 9 | 0.96 | 0.96 | 0.04 | 0.04 | 0.08* |
 | 10 | 0.99 | 0.90 | 0.01 | 0.10 | 0.11 |