Metatarsal head 1 (n = 288) | Metatarsal head 2 (n = 287) | Metatarsal head 3 (n = 287) | Metatarsal head 4 (n = 287) | Metatarsal head 5 (n = 284) | All metatarsal heads (n = 1433) | |
---|---|---|---|---|---|---|
Urate deposit in joint, n (%) (95 % CI) | 230 of 288 (79.9 %) (74.9–84.1 %) | 139 of 287 (48.4 %) (42.7–54.2 %) | 101 of 287 (35.2 %) (29.9–40.9 %) | 85 of 287 (29.6 %) (24.6–35.1 %) | 126 of 284 (44.4 %) (38.7–50.2 %) | 681 of 1433 (47.5 %) (45.0–50.1 %) |
Urate deposit in contact with bone, n (%) (95 % CI) | 169 of 230 (73.5 %) (67.4–78.8 %) | 64 of 139 (46.0 %) (38.0–54.3 %) | 38 of 101 (37.6 %) (28.8–47.4 %) | 27 of 85 (32 %) (23–42 %) | 72 of 126 (57.1 %) (48.4–65.5 %) | 370 of 681 (54.3 %) (50.6–58.0 %) |
Urate deposit on bone surface only, n (%) (95 % CI) | 40 of 169 (23.7 %) (17.9–30.6 %) | 39 of 64 (61 %) (49–72 %) | 27 of 38 (71 %) (52–83 %) | 14 of 27 (52 %) (34–69 %) | 23 of 72 (32 %) (22–43 %) | 143 of 370 (38.6 %) (33.8–43.7 %)a |
Urate deposit at site of erosion, n (%) (95 % CI) | 129 of 169 (76.3 %) (69.4–82.1 %) | 25 of 64 (39 %) (28–51 %) | 11 of 38 (28.9 %) (17–5 %) | 13 of 27 (48.1 %) (31–66 %) | 49 of 72 (68.1 %) (57–78 %) | 227 of 370 (61.4 %) (56.3–66.2 %)a |
True intra-osseous urate deposit, n (%) (95 % CI) | 0 of 169 (0 %) (0–2 %) | 0 of 64 (0 %) (0–6 %) | 0 of 38 (0 %) (0–9 %) | 0 of 27 (0 %) (0–13 %) | 0 of 72 (0 %) (0–4 %) | 0 of 370 (0 %) (0–1 %)a |