Table 1. Logistic regression model showing adjusted and unadjusted associations between identified factors and oedematous Mycobacterium ulcerans lesions.
| Variable | n (%) in cohort | n (%)* oedematous lesions | Unadjusted OR (95%) | p-value | Adjusted OR (95% CI) | p-value |
| Age | ||||||
| <15 | 19 (8.0) | 2 (10.5) | 2.97 (0.50,17.50) | 0.19 | 2.48 (0.26,23.50) | 0.62 |
| 15–60 | 105 (44.1) | 4 (3.8) | 1 | 1 | ||
| >60 | 114 (47.9) | 11 (9.7) | 2.70 (0.83–8.75) | 1.76 (0.45,6.88) | ||
| Sex | ||||||
| Female | 116 (48.7) | 5 (4.3) | 1 | 0.09 | 1 | 0.51 |
| Male | 122 (51.3) | 12 (9.8) | 2.42 (0.83–7.10) | 1.55 (0.42,5.63) | ||
| Diabetes | ||||||
| No | 220 (92.4) | 14 (6.4) | 1 | 0.15 | 1 | 0.02 |
| Yes | 18 (7.6) | 3 (16.7) | 2.94 (0.76–11.4) | 9.42 (1.62,54.74) | ||
| Immunosuppression | ||||||
| No | 220 (3.3) | 15 (6.8) | 1 | 0.88 | - | - |
| Yes | 16 (6.7) | 1 (5.9) | 0.86 (0.11–6.92) | - | - | |
| Lesion Position | ||||||
| Hand | 13 (5.5) | 7 (53.9) | 59.11 (12.18–286.83) | <0.001 | 85.62 (13.69–535.70) | <0.001 |
| Elbow | 34 (14.3) | 4 (11.8) | 6.76 (1.44–31.74) | 7.83 (1.39–43.96) | ||
| Ankle | 36 (15.1) | 3 (8.3) | 4.61 (0.89–23.84) | 7.92 (1.28–49.16) | ||
| Other | 155 (65.1) | 3 (1.9) | 1 | 1 | ||
| Joint | ||||||
| No | 144 (60.5) | 8 (5.6) | 1 | 0.24 | - | - |
| Yes | 94 (39.5) | 9 (9.6) | 1.80 (0.69–4.85) | - | - | |
Percentages represent the proportion of the variable examined from the whole cohort with that variable.