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Table 5 Estimated Impact of IRS with Actellic®300CS in Northern Region, 2015–2017

From: An observational analysis of the impact of indoor residual spraying in Northern, Upper East, and Upper West Regions of Ghana: 2014 through 2017

Year 6-month cumulative incidence (May–Oct; per 10,000 person-months at risk)    
Non-IRS Districts IRS Districts Cumulative Fewer Cases Average population in IRS districts Total population in IRS districtsa Cases averted
2015 2340 1438 901 (39%) 103,945 519,725 56,218
2016 2401 1779 623 (26%) 103,958 519,792 38,834
2017 4337 1830 2507 (58%) 107,738 754,168b 162,072
Total 9078 5047 4031 (44%) 315,641 1793,6685 257,124
  1. aOut of total estimated Northern Region population—2015: 2,874,374; 2016: 2,960,606; 2017: 3,049,424
  2. bIn 2017 two additional districts were sprayed, hence the increase in IRS district population