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Table 1 Pre-control prevalence and Ivermectin Treatment History in 27 communities in the onchocerciasis foci of Birnin Gwari and of Kauru/Lere in Kaduna State, Nigeria

From: Impact of long-term treatment of onchocerciasis with ivermectin in Kaduna State, Nigeria: first evidence of the potential for elimination in the operational area of the African Programme for Onchocerciasis Control

Local Government Area (LGA) Year of first Treatment No. of evaluated communities Pre-control prevalence of microfilaridermia (%) No. of Treatments Mean treatment coverage and range (%)
    Range Median   
Birnin Gwari 1991 1 47.5 47.5 17 78.3
  1993 4 38.9-75.0 58.8 15 78.4 (76.7-79.3)
Kauru 1991 8 46.8-67.3 56.4 17 76.2 (74.4-80.3)
  1993 3 23.1-38.4 25.9 15 78.0 (76.5-80.4)
Lere 1991 5 51.3-84.6 52.7 17 77.4 (75.4-79.6)
  1993 6 30.9-55.2 37.4 15 78.1 (76.9-79.4)
Total 1991-1993 27 23.1-84.6 52.7 15-17 77.7 (74.4-80.4)