Table 5.
Logistic regression to assess the factors associated with O. volvulus mf density reduction of <80% following ivermectin treatment in the four study sites.
| Factors | Coeff | 95% CI | p-Value | |
|---|---|---|---|---|
| Female gender | −0.058 | −0.568 | 0.453 | 0.825 |
| Male gender (reference) | ||||
| Age (years) | −0.097 | −0.192 | −0.002 | 0.044 |
| Age*age (years) | 0.001 | 0.001 | 0.003 | 0.045 |
| Height in cm | −0.019 | −0.048 | 0.010 | 0.207 |
| Number of previous CDTI rounds in site | 0.282 | 0.080 | 0.484 | 0.006 |
| Follow-up skin snip at month 3 | −6.943 | −10.064 | −3.822 | <0.001 |
| Follow-up skin snip at month 4 | −1.101 | −1.850 | −0.351 | 0.004 |
| Follow-up skin snip at month 5 (reference) | ||||
| Pre-ivermectin microfilarial density # | 0.202 | 0.012 | 0.392 | 0.037 |
#: Log-transformed; Coeff = Logistic regression model coefficients, CI = Confidence interval; Age*age = Quadratic effect of age.