Table 4. Comparisons of OF and DCIP tests by tribe and sex.
| Test | Positive | Negative | χ2 | p-value | ||
|---|---|---|---|---|---|---|
| n | % | n | % | |||
| Total of OF and DCIP | 117 | 9.8 | 1,083 | 90.2 | N/A | N/A |
| OF test | 96 | 8.0 | 1,104 | 92.0 | N/A | N/A |
| Tribe | 10.19 | 0.070 | ||||
| Akha | 11 | 5.5 | 189 | 94.5 | ||
| Lahu | 14 | 7.0 | 186 | 93.0 | ||
| Hmong | 15 | 6.5 | 185 | 92.5 | ||
| Yao | 18 | 9.0 | 182 | 91.0 | ||
| Karen | 26 | 13.0 | 174 | 87.0 | ||
| Lisu | 12 | 6.0 | 188 | 94.0 | ||
| Sex | 0.55 | 0.458 | ||||
| Male | 45 | 7.5 | 555 | 92.5 | ||
| Female | 52 | 8.7 | 548 | 91.3 | ||
| DCIP test | 39 | 3.3 | 1,161 | 96.7 | N/A | N/A |
| Tribe | 8.82 | 0.116 | ||||
| Akha | 2 | 1.0 | 198 | 99.0 | ||
| Lahu | 6 | 3.0 | 194 | 97.0 | ||
| Hmong | 12 | 6.0 | 188 | 94.0 | ||
| Yao | 8 | 4.0 | 192 | 96.0 | ||
| Karen | 5 | 2.5 | 195 | 97.5 | ||
| Lisu | 6 | 3.0 | 194 | 97.0 | ||
| Sex | 9.56 | 0.002* | ||||
| Male | 10 | 1.7 | 590 | 98.3 | ||
| Female | 29 | 4.8 | 571 | 95.2 | ||
* Significance level at α = 0.05.