Epidemiology, Clinical Manifestations, and Long-Term Outcomes of a Major Outbreak of Chikungunya in a Hamlet in Sri Lanka, in 2007: A Longitudinal Cohort Study

Table 2

Incidence of chikungunya infection by age group.

Categorized age	Chikungunya fever [ N, % ]*				Total
	Infected		Noninfected
0–12	93	38%	152	62%	245
13–22	74	45%	91	55%	165
23–32	81	51%	78	49%	159
33–42	80	58%	57	42%	137
43–52	76	62%	47	38%	123
53–62	54	59%	38	41%	92
63–72	41	71%	17	29%	58
73–82	12	67%	6	33%	18
83–92	2	67%	1	33%	3
93–102	0		1	100.00%	1
Total	513	51%	488	49%	1001

* Count, % within categorized age.