| Age, yr | | 0.02 | | 0.01 |
| 20-34 | 1.38 (1.02-1.88) | | 1.44 (1.05-1.97) | |
| 35-49 | 1.20 (0.94-1.52) | | 1.30 (1.02-1.64) | |
| 50-64 | 1.12 (0.90-1.38) | | 1.14 (0.93-1.40) | |
| 65-79 (reference) | 1.00 | | 1.00 | |
| ≥ 80 | 0.99 (0.73-1.35) | | 1.09 (0.82-1.43) | |
| Sex | | | | |
| Male (reference) | 1.00 | | 1.00 | |
| Female | 1.00 (0.84-1.19) | | 0.99 (0.83-1.17) | |
| Adjusted Clinical Groups Resource Utilization Bands | | 0.15 | | 0.22 |
| None | 0.94 (0.66-1.35) | | 0.92 (0.64-1.32) | |
| Low | 0.56 (0.37-0.84) | | 0.78 (0.53-1.15) | |
| Moderate | 0.95 (0.77-1.18) | | 0.93 (0.76-1.14) | |
| High | 1.08 (0.86-1.36) | | 1.07 (0.86-1.33) | |
| Very high (reference) | 1.00 | | 1.00 | |
| Special care hours | | 0.001 | | 0.002 |
| 0 | 1.57 (1.21-2.03) | | 1.49 (1.15-1.92) | |
| 1-99 | 1.10 (0.78-1.56) | | 1.15 (0.83-1.57) | |
| 100-399 | 1.13 (0.91-1.40) | | 1.11 (0.89-1.37) | |
| ≥ 400 (reference) | 1.00 | | 1.00 | |
| Psychiatric/behavioural comorbidity | | | | |
| Absent (reference) | 1.00 | | 1.00 | |
| Present | 1.12 (0.93-1.34) | | 1.10 (0.92-1.32) | |
| Fiscal year | | 0.06 | | 0.06 |
| 2002/03 | 1.29 (0.97-1.72) | | 1.23 (0.93-1.62) | |
| 2004/05 | 1.34 (1.01-1.78) | | 1.31 (1.00-1.71) | |
| 2006/07 | 1.07 (0.82-1.40) | | 1.13 (0.87-1.46) | |
| 2008/09 | 1.18 (0.92-1.52) | | 1.06 (0.84-1.34) | |
| 2010/11-2011/12 (reference) | 1.00 | | 1.00 | |