Table 1. Clinical characteristics of BU cases confirmed by IS2404 PCR.
| Characteristics | No. Cases | Confirmed N (%) |
Cat I N (%) |
Cat II N (%) |
Cat III N (%) |
Not stated N (%) |
|---|---|---|---|---|---|---|
| Sex | ||||||
| Male | 1117 | 502 (49.2) | 137 (27.3) | 74 (14.7) | 172 (34.3) | 119 (23.7) |
| Female | 1086 | 518 (50.8) | 133 (25.7) | 84 (16.2) | 185 (35.7) | 116 (22.4) |
| Age | ||||||
| 0–15* | 880 | 406 (46.1) | 141 (34.7) | 70 (17.2) | 113 (27.8) | 82 (20.2) |
| 16–30 | 398 | 188 (47.2) | 45 (23.9) | 34 (18.1) | 73 (38.8) | 36 (19.2) |
| 31–45 | 342 | 158 (46.2) | 32 (20.3) | 29 (18.4) | 63 (39.8) | 34 (21.5) |
| 46–60 | 246 | 115 (46.7) | 27 (23.5) | 10 (8.7) | 53 (46.1) | 25 (21.7) |
| 61 + | 239 | 108 (45.2) | 20 (18.5) | 14 (12.9) | 45 (41.7) | 29 (26.9) |
| Not stated | 98 | 45 (45.9) | 5 (11.1) | 1 (2.2) | 7 (15.6) | 32 (71.1) |
| Lesion | ||||||
| Ulcer | 1637 | 744 (45.4) | 182 (24.5) | 111 (14.9) | 251 (33.7) | 200 (26.8) |
| Nodule | 250 | 96 (38.4) | 62 (64.5) | 9 (9.4) | 9 (9.4) | 16 (16.7) |
| Plaque | 65 | 30 (46.2) | 11 (36.7) | 9 (30.0) | 7 (23.3) | 3 (10.0) |
| Edema | 42 | 22 (52.4) | 5 (22.7) | 2 (18.2) | 13 (59.1) | 2 (18.2) |
| Osteomyelitis | 26 | 11(42.3) | 1(9.1) | 4 (36.4) | 5 (45.5) | 1(9.1) |
| Ulcer/Edema | 84 | 63(72.4) | 20 (31.7) | 14 (22.2) | 28 (44.4) | 1(1.6) |
| Ulcer/Plaque | 77 | 43(55.8) | 11(25.6) | 9 (20.9) | 19 (44.2) | 4 (9.3) |
| Ulcer/osteomyelitis | 22 | 11(50.0) | 1(9.1) | 2 (18.2) | 7 (63.6) | 1(9.1) |
| Sample type | ||||||
| Swab | 1892 | 852 (83.5) | 192 (22.5) | 132 (15.5) | 319 (37.4) | 209 (24.5) |
| FNA | 384 | 160 (15.7) | 78 (48.7) | 26 (16.3) | 29 (18.1) | 27 (16.9) |
| Biopsy | 11 | 8 (0.8) | 0 (0) | 0 (0) | 6 (75.0) | 2 (25.0) |
* Significant variation among ≤15 year group and any other age groups confirmed for BU (p<0.001)