Table 4 Results of subgroup analysis based on sex
Attribute levels (reference level) | Male | Female | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
coefficient (s.e) | SD(s.e) | WTP (CNY) | 95% CI | coefficient (s.e) | SD(s.e) | WTP (CNY) | 95% CI | |||
Cost | −0.0006534* (0.0002826) | 0.000**(0.000) | – | – | – | −0.002**(0.000) | 0.000**(0.000) | – | – | – |
Waiting time (5 h) | ||||||||||
 3 h | 0.346*(0.149) | 0.504*(0.201) | 529.043 | −205.458 | 1263.545 | 0.535**(0.126) | 0.321 (0.207) | 253.751 | 143.354 | 364.147 |
 1 h | 1.005**(0.247) | 1.369**(0.297) | 1537.903 | 74.409 | 3001.397 | 0.762**(0.161) | 0.587*(0.262) | 361.501 | 181.124 | 541.879 |
Pain (Severe) | ||||||||||
 Mild | 0.608**(0.148) | 0.118 (0.308) | 929.791 | −76.306 | 1935.890 | 0.611**(0.169) | 0.319 (0.284) | 289.833 | 126.950 | 452.716 |
 No | 0.743**(0.233) | 1.480**(0.252) | 1137.867 | −66.606 | 2342.279 | 1.797** (0.273) | 1.587**(0.272) | 852.135 | 512.386 | 1191.885 |
Frequency (Once every three years) | ||||||||||
 Once every two years | 0.547** (0.154) | 0.125 (0.049) | 836.906 | −76.345 | 1750.158 | 0.384*(0.178) | 0.708**(0.218) | 182.299 | 17.751 | 346.846 |
 Once a year | 0.957**(0.176) | 0.629*(0.295) | 1465.312 | 54.404 | 2876.220 | 1.198**(0.212) | 1.058**(0.236) | 567.935 | 302.961 | 832.910 |
Sensitivity (35%) | ||||||||||
 65% | 0.661** (0.170) | 0.636** (0.214) | 1011.652 | 6.462 | 2016.842 | 0.233 (0.163) | 0.479**(0.183) | 110.634 | −54.142 | 275.411 |
 95% | 1.064**(0.221) | 0.978** (0.317) | 1628.547 | 85.857 | 3171.238 | 1.166**(0.229) | 1.353**(0.265) | 552.799 | 277.145 | 828.453 |
 log likelihood | − 914.59772 | − 1082.0553 | ||||||||
 Number of obs | 4185 | 5049 | ||||||||
 N | 155 | 187 | ||||||||