Table 2.

Correlation (r = 0.681, P < 0.001) between rainfall and female Anopheles density in the study area. Square root transformation formula X¹= √X+0.5, where X¹ is the transformed value and X is the actual value

Month	Anopheles density
	Actual values in intervention site	Transformed values in intervention site	Actual values in control site	Transformed values in control site	Total Anopheles densities in both sites	Rainfall (mm)
First year
October 2012	8	2.92	36	6.04	8.96	12.42
November 2012	17	4.18	58	7.65	11.83	3.03
December 2012	1	1.22	33	5.79	7.01	5.07
January 2013	0	0.71	45	6.75	7.46	2.30
February 2013	0	0.71	37	6.12	6.83	2.45
March 2013	2	1.58	30	5.52	7.10	6.24
April 2013	35	5.96	53	7.31	13.27	14.96
May 2013	12	3.54	40	6.36	9.90	11.05
June 2013	8	2.92	20	4.53	7.45	12.20
July 2013	8	2.92	26	5.15	8.07	10.54
August 2013	1	1.22	21	4.64	5.86	7.20
September 2013	36	6.04	109	10.46	16.50	16.34
Total	128	33.92	508	76.32	110.24	103.80
Second year
October 2013	86	9.30	88	9.41	18.71	17.59
November 2013	2	1.58	52	7.25	8.83	0.71
December 2013	0	0.71	57	7.58	8.29	2.70
January 2014	1	1.22	53	7.31	8.53	3.19
February 2014	0	0.71	45	6.75	7.46	5.39
March 2014	6	2.55	51	7.18	9.73	7.26
April 2014	78	8.86	117	10.84	19.70	20.23
May 2014	36	6.04	56	7.52	13.56	15.26
June 2014	9	3.08	21	4.64	7.72	17.48
July 2014	7	2.74	20	4.53	7.27	18.24
August 2014	24	4.95	61	7.84	12.79	15.03
September 2014	80	8.97	171	13.09	22.06	22.63
Total	329	50.71	792	93.94	144.65	145.71