Table 2.

Comparison of Genotype Frequency of CAT Polymorphism in Cases and Control Groups

CAT	Genotype			Allele Frequency
	CC	TT	CT	C	T
Cases (n= 64)	40 (62.5%)	8 (12.5%)	16 (25%)	96 (75%)	32 (25%)
Control (n= 64)	18 (28.1%)	18 (28.1%)	28 (43.8%)	64 (50%)	64 (50%)
χ2	4.35			OR= 3.0 95% CI: 1.77 to 5.09
P- value	0.037*

Note: *Statistically significant.

Abbreviations: χ², chi-square; OR, odds ratio; CI, confidence interval.