Prevalence of characteristics used to develop the clusters within each cluster
| Younger GP managed cluster n=979 | Older GP managed cluster n=695 | Psychiatrist managed cluster n=320 | GP managed physiotherapy cluster n=159 | GP managed exercise physiology cluster n=133 | P value | |
| Age, mean (SD) | 43 (5.9) | 60 (5.7) | 45 (7.9) | 48 (10.4) | 53 (9.7) | <0.0001 |
| Male, % (95% CI) | 96 (95 to 97) | 97 (96 to 98) | 92 (89 to 95) | 94 (90 to 98) | 94 (90 to 98) | 0.007 |
| Psychiatrist claims, mean per person (SD) | 2 (3.6) | 2 (3.4) | 12 (11.5) | 4 (5.1) | 4 (5.2) | <0.0001 |
| GP claims, mean per person (SD) | 4 (3.5) | 7 (4.7) | 16 (8.1) | 10 (6.8) | 10 (6.1) | <0.0001 |
| PTSD hospitalisation, mean per person (SD) | 0 (0.6) | 0 (0.8) | 1 (2.2) | 0 (1.0) | 0 (1.3) | <0.0001 |
| Other hospitalisations for mental health, mean per person (SD) | 0 (0.4) | 0 (0.3) | 0 (1.1) | 0 (0.5) | 0 (0.5) | <0.0001 |
| Psychologist claims, mean per person (SD) | 1 (2.4) | 0 (1.8) | 5 (9.2) | 2 (5.2) | 2 (4.8) | <0.0001 |
| Physiotherapy claims, mean per person (SD) | 2 (5.6) | 3 (7.1) | 6 (10.1) | 61 (22.3) | 10 (15.7) | <0.0001 |
| Exercise physiologist claims, mean per person (SD) | 1 (4.8) | 2 (6.6) | 4 (9.8) | 11 (22.5) | 74 (25.4) | <0.0001 |
| Pain specialist consultation claims, mean per person (SD) | 0 (0.2) | 0 (0.3) | 0 (0.7) | 0 (0.4) | 0 (0.5) | <0.0001 |
GP, general practitioner; PTSD, post-traumatic stress disorder.