School-based malaria prevalence: informative systematic surveillance measure to assess epidemiological impact of malaria control interventions in the Democratic Republic of the Congo

Table 5 Pf density by location, age group and surveys period

Location and age (years)			log₁₀ Pf density			Total	p-value
Location and age (years)			< 2.00	2.00–2.99	3.00+	Total	p-value
Pf density-aggregation by survey location
Rural	Age	6–8	101	128	84	313	0.138
		9–10	46	70	39	155
		11–12	59	70	26	155
	Total		206	268	149	623
Urban	Age	6–8	496	438	246	1180	0.134
		9–10	313	259	121	693
		11–12	255	188	93	536
	Total		1064	885	460	2409
Total	Age	6–8	597	566	330	1493	0.039
		9–10	359	329	160	848
		11–12	314	258	119	691
	Total		1270	1153	609	3032

Survey period and age (years)			log₁₀ Pf density			Total	p-value
Survey period and age (years)			< 2.00	2.00–2.99	3.00+	Total	p-value
Pf density-aggregation by survey period
May	Age	6–8	281	311	182	774	0.648
		9–10	172	206	112	490
		11–12	168	163	92	423
	Total		621	680	386	1687
October	Age	6–8	316	255	148	719	0.000
		9–10	187	123	48	358
		11–12	146	95	27	268
	Total		649	473	223	1345
Total	Age	6–8	597	566	330	1493	0.039
		9–10	359	329	160	848
		11–12	314	258	119	691
	Total		1270	1153	609	3032

ISSN: 1475-2875