| Characteristics | IgM | Total | χ2 | P-value | |
| Positive | Negative | ||||
| Age (years) |
|
|
|
|
|
| 15 - 24 | 11 (13.9) | 68 (86.1) | 79 (100.0) | 9.029 | 0.029* |
| 25 - 34 | 9 (4.7) | 181 (95.3) | 190 (100.0) |
|
|
| 35 - 44 | 14 (13.6) | 89 (86.4) | 103 (100.0) |
|
|
| >45 | 3 (10.7) | 25 (89.3) | 28 (100.0) |
|
|
| Total | 37 (9.3) | 363 (90.8) | 400 (100.0) |
|
|
| Gender |
|
|
|
|
|
| Male | 28 (8.0) | 320 (92.0) | 348 (100.0) | 3.585 | 0.032* |
| Female | 9 (17.3) | 43 (82.7) | 52 (100.0) |
|
|
| Total | 37 (9.3) | 363 (90.8) | 400 (100.0) |
|
|
| Marital status |
|
|
|
|
|
| Single | 17 (8.3) | 188 (91.7) | 205 (100.0) | 1.369 | 0.713 |
| Married | 20 (10.6) | 168 (89.4) | 188 (100.0) |
|
|
| Divorced | 0 (0.0) | 6 (100.0) | 6 (100.0) |
|
|
| Widowed | 0 (0.0) | 1 (100.0) | 1 100.0) |
|
|
| Total | 37 (9.3) | 363 (90.8) | 400 (100.0) |
|
|
| Occupation |
|
|
|
|
|
| Employed | 31 (9.10) | 308 (90.9) | 339 (100.0) | 1.748 | 0.417 |
| Unemployed | 1 (4.0) | 24 (96.0) | 25 (100.0) |
|
|
| Student | 5 (13.9) | 31 (86.1) | 36 (100.0) |
|
|
| Total | 37 (9.3) | 363 (90.8) | 400 (100.0) |
|
|
| Educational level |
|
|
|
|
|
| No formal education | 2 (10.5) | 17 (89.5) | 19 (100.0) | 0.777 | 0.855 |
| Basic | 13 (9.8) | 119 (90.2) | 132 (100.0) |
|
|
| Secondary | 14 (10.1) | 124 (89.9) | 138 (100.0) |
|
|
| Tertiary | 8 (7.2) | 103 (92.8) | 111 (100.0) |
|
|
| Total | 37 (9.3) | 363 (90.8) | 400 (100.0) |
|
|