Table 1.
Age and sex distribution of persons surveyed and patients identified based on abdominal ultrasonography
| Age (years) | No. examined (%) | No. positive (%) | No. of healthy controls (%) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Male | Female | Total | Male | Female | Total | Male | Female | Total | |
| < 10 | 175 | 182 | 357 | 4 (2.3) | 4 (2.2) | 8 (2.2) | 1 (0.6) | 2 (1.1) | 3 (0.8) |
| 10–19 | 358 | 428 | 786 | 14 (3.9) | 18 (4.2) | 32 (4.1) | 6 (1.7) | 7 (1.6) | 13 (1.7) |
| 20–29 | 201 | 245 | 446 | 7 (3.5) | 6 (2.5) | 13 (2.9) | 3 (1.5) | 3 (1.2) | 6 (1.3) |
| 30–39 | 289 | 302 | 591 | 10 (3.5) | 16 (5.3) | 26 (4.4) | 5 (1.7) | 7 (2.3) | 12 (2.0) |
| 40–49 | 151 | 161 | 312 | 13 (8.6) | 15 (9.3) | 28 (9.0) | 7 (4.6) | 7 (4.3) | 14 (4.5) |
| 50–59 | 95 | 104 | 199 | 4 (4.2) | 7 (6.7) | 11 (5.5) | 2 (2.1) | 4 (3.8) | 6 (3.0) |
| > 60 | 77 | 88 | 165 | 10 (13.0) | 6 (6.8) | 16 (9.7) | 5 (6.5) | 3 (3.4) | 8 (4.8) |
| Total | 1346 (47.1) | 1510 (52.9) | 2856 (100) | 62 (4.6) | 72 (4.8) | 134 (4.7) | 29 (2.2) | 33 (2.2) | 62 (2.2) |