Frequencies of VKORC1-1639G>A and rs397509427 in Patients on Warfarin and Healthy Syrian Subjects

Table 4

The frequency of -1639A allele in different populations.

Country (reference)	No. of individuals		Frequency of the -1639A
	Patients	Healthy
Syria (our study)	94	44	47.8
Japan [16]	125	114	89.2%	93.9%
South Africa [17]	89	—	12%
Germany [18]	91	—	39%
Australia [19]	5408	—	40.3%
Egypt [20]	100	—	44%
Turkey [21]	200	—	44%
Morocco [22]	217ǂ	—	46.1%
Palestine/Gaza [23]	101	—	46.5%
Italy [24]	264	—	49.8%
China [25]	278	—	91.4%
France [26]	—	222	42%
Saudi Arabia [27]	—	131	42.7%
United Arab Emirates [28]	—	117	49.6%
Lebanon [29]	—	161	52.8%
Iran [30]	—	126	55.6%

ǂPatients are on acenocoumarol (another coumarin anticoagulant).