Table 3. False-positive report probability values for associations between the nitric oxide synthase 3 polymorphisms and the preeclampsia risk.

Genotype	Crude OR (95% CI)	P-valuea	Statistical powerb	Prior probability
				0.25	0.1	0.01	0.001	0.0001
G894T
Recessive genetic model	1.46 (1.21, 1.77)	<0.001	0.710	0.003	0.009	0.089	0.496	0.908
High-quality score	1.59 (1.27, 2.00)	<0.001	0.453	0.005	0.014	0.133	0.607	0.939
T-786C
Recessive genetic model	1.30 (1.07, 1.58)	0.008	0.590	0.004	0.011	0.105	0.542	0.922
Caucasian	1.41 (1.11, 1.79)	0.005	0.303	0.007	0.020	0.186	0.698	0.958
African	2.44 (1.26, 4.71)	0.008	0.008	0.204	0.435	0.894	0.988	0.999
High-quality score	1.47 (1.14, 1.89)	0.003	0.241	0.009	0.026	0.224	0.744	0.967

OR: odds ratio; CI: confidence interval;

^aChi-square test was used to calculate the genotype and haplotype frequency distributions.

^bStatistical power was calculated by using the number of observations in the subgroup and the OR and P values in this table.