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| Risk Factor | Sample value (> = 15) | ||
| N/Total (%) | RR(95% CI) | P-value* | |
| Sex | 0.364 | ||
| Male | 4/277 (1.4) | 1.91 | |
| Female | 2/265 (0.8) | (0.35–10.36) | |
| Residence | 0.039 | ||
| Rural | 5/215(2.3) | 7.60 | |
| Urban | 1/327 (0.3) | (0.89–64.64) | |
| Age Group | 0.001 | ||
| ≥65 | 5/102 (4.9) | 21.57 | |
| <65 | 1/440 (0.2) | (2.55–182.63) | |
: Fisher's Exact test.
