Table 2.
Summary of the incidence of THA in patients with RA analysed by decade, continent, and diagnosis
| Category | Incidence per 1000 PYs (CI) |
|---|---|
| Overall rate 1980–2019 | 7 (6–9) |
| By decade | |
| 1990–1999 | 46 (29–68)a |
| 2000–2009 | 11 (7–16) |
| 2010–2019 | 7 (6–9) |
| By continent | |
| Europe | 8 (6–10) |
| North America | 6 (2–13)a |
| Asia | 6 (6–7)a |
| By diagnosis | |
| OA specifically excluded | 7 (3–12)a |
| OA not specifically excluded | 7 (5–9) |
aNot enough studies to meet the three studies required for quantitative analysis, and rate should be used and interpreted with caution as it may not be representative of the broader population