Table 1.

Age distribution of subjects

Age group	Study group	Control group	Total
<20 years	0	1	1
20–29 years	12	8	20
30–39 years	24	13	37
40–49 years	13	7	20
≥50 years	3	1	4
Total	52	30	82
Mean age, years	35.19 ± 7.94	33.77 ± 9.15	34.70 ± 8.4

Note:P = 0.461.