tokens: With increasing stroke risk , however , patients were more likely to receive oral anticoagulant therapy [ mainly vitamin K antagonist ( VKA ) ] , but average international normalized ratio ( INR ) was lower among Indian patients [ median INR value 1.6 ( interquartile range { IQR } : 1.3 - 2.3 ) versus 2.3 ( IQR 1.8 - 2.8 ) ( P < 0.001 ) ] .