Table 2.

Prevalence of allergic conjunctivitis among adult Saudi population of Western Saudi Arabia by variants

	Examined	With AC	Crude rate	Adjusted rate	95% CI	Projected AC cases
Gender
Male	566	428	75.6	67.5	67.4-67.6	956,137
Female	1621	1336	82.4	78.2	78.1-78.3	1,201,929
Age group
20-29	1701	1365	80.2	78.9	78.8-79.0	645,814
30-39	224	161	71.9	61.4	61.3-61.5	443,624
40+	243	201	82.7	70.3	70.2-70.4	980,089
Study site
Taif	942	764	81.1	39.2	39.1-39.3	582,821
Macca	861	693	80.5	69.6	69.5-69.7	564,393
Jeddah	384	307	79.9	77.2	77.1-77.3	1,119,429
Total	2187	1727	79.9	70.5	70.4-70.6	2,069,528

AC: Allergic conjunctivitis, CI: Confidence interval