Table 3 Working-age population prevalence of multimorbidity among those with musculoskeletal conditions (MSK) (lumped and split into subgroups)
|  | Multimorbidity prevalence  % (95% CIs) | ||
|---|---|---|---|
Survey-based definitiona | Policy-based definitiona | Research-based definitiona | |
1. Prevalence of two or more co-occurring conditions (2+ threshold) b | |||
Any MSK (n = 4555) | 92.2 (90.9, 93.3) | 38.3 (36.5, 40.1) | 20.2 (18.9, 21.6) |
 Osteoarthritis | 98.5 (97.3, 99.2) | 46.1 (41.3, 51.1) | 40.4 (36.2, 44.8) |
 Inflammatory arthritis | 98.2 (90.5, 99.7) | 53.1 (45.2, 61.0) | 45.3 (37.3, 53.5) |
 Other arthritis | 95.0 (93.2, 96.4) | 41.9 (38.1, 45.8) | 27.2 (23.4, 31.2) |
 Gout | 90.9 (87.0, 93.7) | 37.8 (32.8, 43.1) | 33.9 (29.1, 39.0) |
 Other musculoskeletal | 95.6 (88.0, 98.5) | 41.4 (28.0, 56.3) | 22.7 (12.4, 37.8) |
 Back pain | 91.7 (90.0, 93.2) | 39.8 (37.6, 42.0) | 15.8 (14.0, 17.8) |
 Soft tissue conditions | 95.9 (91.3, 98.1) | 46.9 (40.3, 53.6) | 25.4 (20.1, 31.5) |
 Osteoporosis | 99.0 (96.0, 99.8) | 50.4 (42.1, 58.7) | 27.4 (20.3, 36.0) |
2. Prevalence of three or more co-occurring conditions (3+ threshold) | |||
Any MSK | 75.4 (73.6, 77.0) | 11.4 (10.1, 12.8) | 5.9 (4.9, 7.0) |
 Osteoarthritis | 90.7 (88.0, 92.9) | 16.4 (13.2, 20.2) | 11.3 (8.6, 14.7) |
 Inflammatory arthritis | 88.0 (79.7, 93.2) | 23.0 (17.1, 30.2) | 14.7 (9.5, 22.0) |
 Other arthritis | 81.8 (78.5, 84.7) | 14.7 (12.0, 17.8) | 8.5 (5.8, 12.3) |
 Gout | 77.3 (72.4, 81.6) | 10.6 (8.1, 13.7) | 10.4 (7.8, 13.7) |
 Other musculoskeletal | 79.0 (66.8, 87.6) | 11.8 (6.0, 22.0) | 6.5 (2.9, 13.8) |
 Back pain | 76.0 (73.4, 78.3) | 11.7 (10.0, 13.7) | 5.1 (4.2, 6.4) |
 Soft tissue conditions | 82.9 (76.4, 87.9) | 18.07 (13.5, 23.8) | 7.6 (5.0, 11.4) |
 Osteoporosis | 89.1 (81.8, 93.7) | 17.3 (13.1, 22.5) | 9.0 (5.1, 15.5) |