Analysis of the Relationship of Parasite Fertility with β-tubulin Genotype, Patient and Parasitological Independent Variables After Treatment.

Odds ratios (OR) and 95% confidence intervals (95% CI) for logistic regression of full fertility (vs. low- or non-fertility) of worms collected after ivermectin treatment on seven independent variables. Reference category for genotype: heterozygosity for β-tubulin gene. Reference category for treatment group: 150 µg/kg yearly. No. females/nod. = total number of females in the nodule; No. nod. 1994 = total number of palpable nodules in 1994; No. males = number of males in the nodule; CMFL = Community Microfilarial Load (reference category: 10-40 microfilariae per skin snip (mf/ss)).