Table 5 The means and the ranges of concentration index for outpatient and inpatient utilization from 1993 to 2008 (%)
| Â | 1993 | 1998 | 2003 | 2008 |
|---|---|---|---|---|
The probability of outpatient visit | 8.09 | 9.13 | 7.93 | 8.46 |
(−0.919, 0.919) | (−0.909, 0.909) | (−0.921, 0.921) | (−0.915, 0.915) | |
The probability of inpatient visit | 3.33 | 3.07 | 3.37 | 6.16 |
|  | (−0.967, 0.967) | (−0.969, 0.969) | (−0.966, 0.966) | (−0.938, 0.938) |