Table 2.

Sandfly density before and after interventions

Time of measurement	Total sandfly density*		P value of IWP comparing with baseline	P value of IRS comparing with baseline
	IWP (n = 60)	IRS (n = 54)
At baseline	1.46	0.75	–	–
After 1 month of intervention	0.14	0.17	< 0.001	< 0.001
After 9 months of intervention	0.28	0.31	< 0.001	< 0.001
After 12 months of intervention	0.36	0.28	< 0.001	< 0.001

IRS = indoor residual spraying; IWP = insecticidal wall painting.

^*Per household per CDC light trap per night.