Patient demographics. Data are n (%) unless otherwise indicated.
| Characteristics | |
|---|---|
| No. cases | 248 |
| Newman’s criteria | |
| A | 162 (65.3) |
| B | 43 (17.3) |
| C | 43 (17.3) |
| Age, yrs, median (range) | 60 (16–97) |
| Male/female | 166/62 (66.9/33.1) |
| Ethnicity | |
| NZ European | 184 (74.2) |
| Other European | 22 (8.9) |
| NZ Maori | 21 (8.5) |
| Pacific islander | 11 (4.4) |
| Asian | 4 (1.6) |
| Other | 6 (2.4) |
| Charlson comorbidity index score | |
| 0 | 179 (72.2) |
| 1 | 21 (8.5) |
| 2 | 25 (10.1) |
| 3 and greater | 23 (9.3) |
| Joint | |
| Single | 229 (92.3) |
| Multiple | 19 (7.7) |
| Shoulder | 53 (21.4) |
| Knee | 52 (21) |
| Hand | 37 (14.9) |
| Hip | 26 (10.5) |
| Wrist | 20 (8.1) |
| Ankle | 18 (7.3) |
| Elbow | 17 (6.9) |
| Foot | 17 (6.9) |
| Sternoclavicular | 9 (3.6) |
| Sacroiliac joint | 8 (3.2) |
| Acromioclavicular | 7 (2.8) |
| Underlying inflammatory joint disease | |
| Gout | 37 (14.5) |
| CPPD | 21 (8.5) |
| Rheumatoid arthritis | 10 (4) |
| Connective tissue disorder | 4 (1.6) |
| Polymyalgia rheumatica | 2 (0.8) |
| Vasculitis | 1 (0.4) |
| Spondyloarthropathy | 1 (0.4) |
NZ: New Zealand; CPPD: calcium pyrophosphate disease.