Table 1: Agreement of INR measurements between CoaguChek XS Plus and STA-R.

CoaguChek XS PlusTotal (%)
INR < 2INR 2.0-3.0INR > 3

STA-R
 INR < 26513078 (66.1)
 INR 2.0-3.0131638 (32.2)
 INR > 3.00112 (1.7)

Total (%)66 (55.9)45 (38.1)7 (5.9)118

Kappa value was 0.679 (95% CI, 0.569–0.790).