Presence of shoulder ulcers (any score ≥ 1) n (%) | Absence of shoulder ulcers n (%) | Odds Ratio (95% Confidence Interval) | p-value | |
---|---|---|---|---|
Subgroup without rubber mat (n = 566) | ||||
At-risk group | 63 (62.4) | 38 (37.6) | 5.55 (3.51, 8.76) | <.0001 |
Non-at-risk group | 107 (23.0) | 358 (77.0) | 1.0 (Ref.a) | |
Subgroup under risk (n = 194) | ||||
Rubber mat group | 44 (47.3) | 49 (52.7) | 0.54 (0.31, 0.96) | 0.0358 |
No rubber mat group | 63 (62.4) | 38 (37.6) | 1.0 (Ref.a) |