Table 1.

Demographic profile of 340 patients with RA.

Variable	Frequency n (%)
Age “years”	53.3 ± 11.3
Gender male:female (1:3.5)
Male	75 (22.1%)
Female	265 (77.9%)
Rheumatoid factor, no. (%)	259 (76.1)
Duration of the disease “years”
0–5	113 (33.2%)
6–10	118 (34.7%)
11–15	63 (18.5%)
16–20	25 (7.4%)
>20	21 (6.2%)
History of allergy	11 (3.2%)