Prevalence* of EOA in the general population (n=3430) and several subpopulations, stratified age categories
| Prevalence of EOA, all | All ages | 55–64 years | 65–74 years | 75–84 years | > 85 years |
|---|---|---|---|---|---|
| General population | 2.8 (2.3-3.4) | 1.8 (1.3-2.6) | 3.8 (2.9-5.0) | 3.4 (1.8-5.7) | 3.6 (0.1–18.4) |
| 96/3430 | 31/1681 | 51/1339 | 13/382 | 1/28 | |
| Mild radiographic HOA† | 5.0 (4.0–6.0) | 4.0 (2.7–5.6) | 6.1 (4.6–7.9) | 4.7 (2.5–7.9) | 5.3 (0.1–26.0) |
| 96/1916 | 31/777 | 51/842 | 13/278 | 1/19 | |
| Extensive radiographic HOA‡ | 8.0 (6.4–10.0) | 7.9 (5.1–11.8) | 9.3 (6.8–12.4) | 5.2 (2.4–9.6) | 0 |
| 74/922 | 22/277 | 43/461 | 9/174 | 0/10 | |
| Hand pain | 6.9 (4.9–9.3) | 3.8 (1.9–7.0) | 10.5 (6.6–14.5) | 6.1 (1.3–16.9) | 0 |
| 38/551 | 10/260 | 25/237 | 3/49 | 0/5 | |
| Symptomatic HOA§ | 10.2 (7.2–13.3) | 6.6 (3.2–11.8) | 14.3 (9.1–19.5) | 7.3 (1.5–19.9) | 0 |
| 38/371 | 10/151 | 25/175 | 3/41 | 0/4 |
↵* In per cent (95% CI), no. of people with EOA/all.
↵† Defined as having at least one joint (DIP, PIP, IPJ or 1st CMCJ) with KL grade ≥2.
↵‡ Presence of KL grade ≥2 in two out of three groups of hand joints (DIPJs/IPJs, PIPJs and 1st CMCJs) of each hand.
↵§ People with hand pain and signs of mild radiographic HOA.
CMCJ, carpometacarpal joint; DIPJ, distal interphalangeal joint; EOA, erosive hand osteoarthritis; HOA, hand osteoarthritis; IPJ, interphalangeal joint; KL, Kellgren and Lawrence; PIPJ, proximal interphalangeal joint.