Crude and adjusted odds of failing the City University Tritan Test by degree of skin snip positivity, in an onchocercal area, northern Nigeria
| Screening plates | Grading plates | |||||
|---|---|---|---|---|---|---|
|
Skin snip (mf/mg skin) |
Crude odds (95% CI) |
Adjusted odds (95% CI) |
Crude odds (95% CI) |
Adjusted odds (95% CI) | ||
| Negative | 1.00 | 1.00 | 1.00 | 1.00 | ||
| 1–10 | 2.36 (1.94–2.86) | 0.98 (0.70–1.39) | 3.18 (2.47–4.10) | 0.92 (0.46–1.83) | ||
| 11–50 | 3.63 (2.94–4.47) | 1.52 (1.05–2.20) | 4.76 (3.63–6.24) | 1.46 (0.72–2.95) | ||
| 51+ | 4.20 (3.10–5.70) | 1.90 (1.15–3.14) | 4.83 (3.28–7.12) | 1.71 (0.68–4.28) | ||
Adjustment after restriction to those with visual acuities of better than 3/60 for sex, age, ethnic group, education, occupation, religion, alcohol and diethylcarbamazine consumption, visual acuity, and diagnosis of cataract and optic nerve disease.