The hospitalisation days and expenses of paediatric burn patients in different age, cause of burn injuries and surgical intervention groups
| N | Hospitalisation days | χ2 | P value | Hospitalisation expense | χ2 | P value | |
| Age | 7.241 | 0.065 | 13.807 | 0.003 | |||
| <1 year old | 366 | 9 (5, 16) | 8364.905 (4726.540, 15 865.008) | ||||
| 1–2 years old | 4715 | 8 (5, 13) | 7651.290 (4340.300, 13 849.540) | ||||
| 3–5 years old | 1158 | 9 (6, 14) | 8197.555 (4563.660, 15 960.208) | ||||
| 6–15 years old | 502 | 8 (5, 15) | 7604.705 (4308.363, 16 412.910) | ||||
| Cause of burn injuries | 84.825 | <0.001 | 101.697 | <0.001 | |||
| Hydrothermal scald | 5431 | 9 (6, 14) | 8087.280 (4544.11, 14 745.15) | ||||
| Flame | 206 | 10 (6, 22) | 11 333.825 (5341.2275, 32 354.395) | ||||
| Electric | 85 | 7 (3, 19) | 8295.440 (4180.000, 20 183.535) | ||||
| Chemical | 84 | 6 (3, 15) | 7360.185 (2867.095, 23 227.935) | ||||
| Others | 100 | 8 (4, 12) | 6683.780 (3974.323, 11 361.275) | ||||
| Unknown | 835 | 7 (5, 11) | 5905.230 (3829.800, 10 576.620) | ||||
| Surgical intervention | 552.466 | <0.001 | 1375.611 | <0.001 | |||
| Yes | 1090 | 15 (9, 26) | 24 529.945 (12 745.078, 42 988.745) | ||||
| No | 5651 | 8 (5, 12) | 6647.910 (4026.300, 11 183.100) |
Bold p values in the table indicate significant differences.