Table 2. Prevalence and intensity of hookworm infections in 2009 and 2015 and number of treatments.

	Savanes (2009 n = 1930; 2015 n = 2009)	Kara (2009 n = 2968; 2015 n = 3494)	Centrale (2009 n = 2446; 2015 n = 2460)	Plateaux (2009 n = 5491; 2015 n = 5624)	Maritime (2009 n = 3255; 2015 n = 3300)	Total (2009 n = 16090; 2015 n = 16887)
Average school percent positive for hookworm [range]†
2009	31.8 [0.0, 100.0]	24.2 [0.0, 100.0]	36.4 [0.0, 100.0]	31.7 [0.0, 100.0]	38.5 [0.0, 100.0]	32.4 [0.0, 100.0]
2015	4.6 [0.0, 40.0]	9.5 [0.0, 66.7]	15.2 [0.0, 66.7]	13.0 [0.0, 100.0]	10.3 [0.0, 53.3]	11.1 [0.0, 1.0]
Average school-level hookworm EPG* of stool, arithmetic mean [range]
2009	331.5 [0–36864]	72.6 [0, 12240]	205.0 [0, 36000]	169.4 [0, 17808]	210.6 [0, 20544]	184.7 [0, 36864]
2015	7.9 [0, 5664]	22.6 [0, 7056]	37.2 [0, 6360]	43.3 [0, 11952]	39.2 [0, 4944]	33.1 [0, 11952]
Individual-level hookworm EPG* of stool, frequency§ (%)
2009
None	1316 (68.2)	2251 (75.8)	1555 (63.6)	3753 (68.3)	2003 (61.5)	10878 (67.6)
Light	541 (28.0)	703 (23.7)	844 (34.5)	1637 (29.8)	1190 (36.6)	4915 (30.5)
Moderate	35 (1.8)	10 (0.3)	28 (1.1)	56 (1.0)	35 (1.1)	164 (1.0)
Heavy	38 (2.0)	4 (0.1)	19 (0.8)	45 (0.8)	27 (0.8)	133 (0.8)
2015
None	1916 (95.4)	3161 (90.5)	2086 (84.8)	4895 (87.0)	2961 (89.7)	15019 (88.9)
Light	92 (4.6)	326 (9.3)	367 (14.9)	708 (12.6)	323 (9.8)	1816 (10.8)
Moderate	0 (0.0)	6 (0.2)	5 (0.2)	15 (0.3)	12 (0.4)	38 (0.2)
Heavy	1 (0.0)	1 (0.0)	2 (0.1)	6 (0.1)	4 (0.1)	14 (0.1)
Number of treatments, mean (range)
2010–2014	3.7 [0, 8]	2.2 [0, 5]	5.0 [5, 5]	4.0 [0, 7]	4.4 [4, 7]	3.8 [0, 8]

^§Hookworm categorization based on WHO guidelines. None = 0 eggs/g, Light = 1–1,999 eggs/g, Moderate = 2,000–3,999 eggs/g, Heavy = 4,000+ eggs/g.

^†Mean percentage of school-level population (mean of means)

*EPG = eggs per gram of stool