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Table 2 Appearance and disappearance of the nodules after 3 years of treatment

From: Individuals living in an onchocerciasis focus and treated three-monthly with ivermectin develop fewer new onchocercal nodules than individuals treated annually

 All participants150 µg/kg annually800 µg/kg annually150 µg/kg
3-monthly
800 µg/kg
3-monthly
P-value
No. of subjects485126122125112 
Mean no. of new nodules ± SD2.1 ± 1.72.1 ± 1.72.4 ± 1.81.7 ± 1.52.0 ± 1.60.014
Mean no. of nodules that disappeared ± SD0.5 ± 0.80.5 ± 0.80.5 ± 0.70.6 ± 0.80.6 ± 0.80.279
  1. Abbreviation: No, number; SD, standard deviation