Epidemiology of soil-transmitted helminth infections and the differential effect of treatment on the distribution of helminth species in rural areas of Gabon

Table 2 Prevalence of soil-transmitted helminths (STHs) assessed at inclusion and at the end of each follow-up phase

	First follow-up						p-value	Second follow-up						p-value
	Inclusion (M₀), N = 160			Six-month follow-up (M₆), N = 128				Inclusion (M₆), N = 215			Nine-month follow-up (M₁₅), N = 146
	n	%	95% CI	n	%	95% CI		n	%	95% CI	n	%	95% CI
Any STH	67	41.9	34.1–49.9	52	40.6	32.0–49.7	0.92	94	43.7	37.0–50.6	51	34.9	27.2–43.2	0.12
Ascaris lumbricoides	26	16.2	10.9–22.9	18	14.1	8.5–21.3	0.73	36	16.7	12.0–22.4	16	11.0	6.4–17.2	0.17
Trichuris trichiura	46	28.7	21.9–36.4	40	31.2	23.3–40.0	0.74	66	30.7	24.6–37.3	35	24.0	17.3–31.7	0.20
Hookworm	15	9.4	5.3–15.0	14	10.9	6.1–17.7	0.81	28	13.0	8.8–13.3	13	8.9	4.8–14.7	0.30
Strongyloides stercoralis	10	6.2	3.0–11.2	12	9.4	4.9–15.8	0.44	23	10.7	6.9–15.6	3	2.0	0.4–5.9	0.004

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