Table 2 . Prevalence of RA in different age groups .

	Male		Female		Both sexes
Age group	Prevalence (%)	95% CI	Prevalence (%)	95% CI	Prevalence (%)	95% CI
15 – 29	0.05	0.00-0.30	0	-	0.02	0.003-0.15
30- 39	0	-	0.86	0.31-1.59	0.43	0.16-0.80
40 – 49	0.25	0.05-0.89	0.68	0.21-1.39	0.46	0.15-0.91
50 – 59	0	-	0.86	0.20-1.87	0.40	0.09-0.86
60 – 69	0	-	1.66	0.35-3.47	0.74	0.15-1.64
70 +	0.86	0.18-3.26	2.33	0.73-4.78	1.61	0.60-2.86
All ages	0.09	0.02-0.17	0.58	0.-39-0.80	0.33	0.22-0.46