Table 3. Case-control analysis of allele distributions.

Gene	dbSNP No.	alleles		control		case			95% CI	95% CI
			N	frequency	N	frequency	p	OR*	lower	upper
ADRB2	rs1042714	CC	106	36.68	132	37.18	0.868	1.020	0.810	1.283
		CG	133	46.02	161	45.35
		GG	50	17.30	62	17.46
NOS1AP	rs10494366	GG	40	14.34	50	14.62	0.625	1.061	0.836	1.347
		GT	129	46.24	160	46.78
		TT	110	39.43	132	38.60
RYR2	rs790896	AA	56	18.86	65	18.31	0.945	1.008	0.801	1.269
		AG	141	47.47	173	48.73
		GG	100	33.67	117	32.96
SCN5A	rs11720524	CC	108	36.99	171	47.90	0.019	1.351	1.050	1.737
		CG	149	51.03	155	43.42
		GG	35	11.99	31	8.68
TGFB2	rs9838682	AA	31	10.88	49	13.84	0.999	1.000	0.786	1.272
		AG	139	48.77	144	40.68
		GG	115	40.35	161	45.48

*OR = odds ratio; CI = confidence intervals.