Epidemiology of malaria in the forest-savanna transitional zone of Ghana

Malaria Journal

Table 1 Incidence density of clinical malaria* by age group in under five year-old children

Age group	Episodes of clinical malaria	Person Years	Incidence density (no. of episodes per child per year)
Any Parasitaemia
0-6 mth	36	5637	2.3
0-11 mth	145	12301	4.3
12-23 mth	310	13239	8.6
24-35 mth	246	10618	8.5
36-47 mth	224	11673	7.0
48-59 mth	133	7658	6.3
under-five yrs	1058	55489	7.0
Parasitaemia >5000/μL
0-6 mth	12	5637	0.8
0-11 mth	77	12301	2.3
12-23 mth	222	13239	6.1
24-35 mth	166	10618	5.7
36-47 mth	122	11673	3.8
48-59 mth	69	7658	3.3
under-five yrs	656	55489	4.3
Parasitaemia >10000/μL
0-6 mth	9	5637	0.6
0-11 mth	62	12301	1.8
12-23 mth	193	13239	5.3
24-35 mth	145	10618	5.0
36-47 mth	103	11673	3.2
48-59 mth	56	7658	2.7
under-five yrs	559	55489	3.7
Parasitaemia >20000/μL
0-6 mth	7	5637	0.5
0-11 mth	45	12301	1.3
12-23 mth	146	13239	4.0
24-35 mth	108	10618	3.7
36-47 mth	80	11673	2.5
48-59 mth	46	7658	2.2
under-five yrs	425	55489	2.8
Parasitaemia >50000/μL
0-6 mth	1	5637	0.1
0-11 mth	27	12301	0.8
12-23 mth	80	13239	2.2
24-35 mth	61	10618	2.1
36-47 mth	32	11673	1.0
48-59 mth	16	7658	0.8
under-five yrs	216	55489	1.4

* Clinical malaria = parasitemia at defined levels plus either temperature ≥ 37.5°C or reported fever within 48 hours

ISSN: 1475-2875