From: Security and cost comparison of INR self-testing and conventional hospital INR testing in patients with mechanical heart valve replacement
Region
Time consumed (hours)
Local group
12.00-19.20 (12.48 ± 2.40)
Group 1
Within-Sichuan group
24.00-84.00 (47.76 ± 18.72)
Outside-Sichuan group
48.00-108 (64.08 ± 13.92)
Group 2
0.03-0.08 (0.04 ± 0.03)