Genotyping of CYP2C9 and VKORC1 in the Arabic Population of Al-Ahsa, Saudi Arabia

Table 1

Frequencies of the CYP2C9*2 and *3 and VKORC1 –1639G>A genotypes and alleles in a sample of the Saudi Arabian population (𝑛=131).

Genotypes and alleles	No. of individuals, relative frequency, and 95% confidence intervals
	𝑛 (%)	95% CI
CYP2C9 genotype
CYP2C9*1/*1	90 (68.7)	60.4–76.2
CYP2C9*1/*2	35 (26.7)	19.7–34.7
CYP2C9*1/*3	6 (4.6)	1.9–9.2
CYP2C9*2/*2	0	—
CYP2C9*2/*3	0	—
CYP2C9*3/*3	0	—
CYP2C9 allele
CYP2C9*2	35 (13.3)	9.7–17.9
CYP2C9*3	6 (2.3)	1.0–4.7
VKORC1 genotype
GG	49 (37.4)	29.5–45.9
GA	52 (39.7)	31.6–48.2
AA	30 (22.9)	16.4–30.6
VKORC1 allele
G	150 (57.3)	51.2–63.1
A	112 (42.7)	36.9–48.8