An observational analysis of the impact of indoor residual spraying with non-pyrethroid insecticides on the incidence of malaria in Ségou Region, Mali: 2012–2015

Table 2 A crude estimate of the cost-effectiveness of IRS in Bla and Barouéli Districts, 2012–2014

Transmission season^a	Reduced incidence observed in IRS districts (number of RDT+ cases per 10,000 person-months)	Total population of IRS districts	Estimated cases averted^b	Estimated cost of IRS campaign^c	Crude cost per person covered	Crude cost per case averted
2012	321.3	563,359	108,604	$3,426,834.00	$6.08	$31.55
2013	289.7	586,125	101,880	$4,339,328.78	$7.40	$42.59
2014	491.5	258,598	76,261	$1,778,893.77	$6.88	$23.33
Total			286,745	$9,545,056.55

^aDefined here as the 6 months following the IRS campaign
^b(Reduced incidence) * (population of IRS districts) * (6 months)
^cAnnual Revised PMI Expenditures from Africa Indoor Residual Spray (AIRS) Mali Programme, in adjusted 2014 USD, multiplied by proportional number of houses sprayed per district analysed

ISSN: 1475-2875