A study of hurdles in mass treatment of schistosomiasis in KwaZulu-Natal, South Africa

Figures & data

Table 1: Treatment coverage across gender and school phase

	Treated females/Total reached females (%)	Treated males/Total reached males (%)	Total treated persons/Total reached Persons (%)	Gender not recorded^* (%)
Treated schools (43)	4382/9412 (46.6)	4190/9773 (42.9)	10632/24005 (44.3)	2060/4820 (42.7)
Primary school^†	2878/5357 (53.7)	2882/5846 (49.3)	7159/14162 (50.6)	1399/2959 (47.3)
Intermediate school^‡	279/583 (47.9)	253/610 (41.5)	551/1231 (44.8)	19/38 (50.0)
High school^§	1225/3472 (35.3)	1055/3317 (31.8)	2922/8612 (33.9)	642/1823 (35.2)

^* Gender not stated on class list.

^† Usually grade 1 to 7, but occasionally only to grade 4.

^‡ Usually grade 7 to 9.

^§ Usually grade 8 to 12.

Figure 1: Treatment coverage by the different age groups (in years) and gender

Table 2: Bivariate and multivariate analysis for factors influencing the treatment coverage

			Bivariate analysis		Multivariate analysis
		Treatment given (%)	OR* (95% CI)	P	Adj. OR (95% CI)^†	P
Age group	3–9	1894/3232 (58.6)	1		1
	10–14	2646/5364 (49.3)	0.69 (0.63–0.75)	<0.001	0.70 (0.63–0.78)	<0.001
	15–19	1728/5128 (33.7)	0.36 (0.33–0.39)	<0.001	0.39 (0.35–0.43)	<0.001
	20–24	223/866 (25.8)	0.25 (0.21–0.29)	<0.001	0.28 (0.23–0.33)	<0.001
	25–35	3/26 (11.5)	0.09 (0.03–0.31)	<0.001	0.10 (0.03–0.35)	<0.001
School level	Primary school	7159/14162 (50.6)	1
	Intermediate school	551/1231 (44.8)	0.79 (0.71–0.89)	<0.001
	High school	2922/8612 (33.9)	0.50 (0.48–0.53)	<0.001
Gender	Female	4382/9412 (46.6)	1		1
	Male	4190/9773 (42.9)	0.86 (0.81–0.91)	<0.001	0.91 (0.85–0.99)	0.02
School size	<350 learners	1185/2108 (56.2)	1		1
	350–700 learners	4597/9753 (47.1)	0.69 (0.63–0.76)	<0.001	0.48 (0.40–0.58)	<0.001
	>700 learners	4850/12144 (39.9)	0.52 (0.47–0.57)	<0.001	0.47 (0.39–0.56)	<0.001

^* Odds ratio (OR) with 95% confidence interval (CI).

^† School level was not included in the multivariate analysis as there is a causal factor between school level and age.

Table 3: Bivariate and multivariate analysis for factors influencing the percentage of consent forms returned

	Consent form returned (%)	OR (95% CI)^*	P	Adj OR(95% CI)^†	P
Female	5735/9412 (60.9)	1		1
Male	5314/9773 (54.4)	0.76 (0.72–0.81)	<0.001	0.74 (0.70–0.79)	<0.001
School size<350^‡	1363/2108 (64.7)	1		1
School size 350–700	5878/9753 (60.3)	0.83 (0.75–0.92)	<0.001	0.92 (0.82–1.03)	0.15
School size >700	6308/12144 (51.9)	0.59 (0.54–0.65)	<0.001	0.62 (0.55–0.69)	<0.001
Primary school^§	8739/14162 (61.7)	1		1
Intermediate school^||	660/1231 (53.6)	0.72 (0.64–0.81)	<0.001	0.75 (0.66–0.84)	<0.001
High school^**	4150/8612(48.2)	0.58 (0.55–0.61)	<0.001	0.57 (0.53–0.61)	<0.001

^* Odds ratio (OR) with 95% confidence interval (CI).

^† Adjusted odds ratio, all three factors were included in the multivariate analysis.

^‡ Number of learners in the school.

^§ Usually grade 1 to 7, but occasionally only to grade 4.

^|| Usually grade 5 to 7.

^** Usually grade 8 to 12.