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Table 2 Non-therapeutic INRs monitoring and daily warfarin dose adjustment in the CHUs of TASH, 2012

From: Quality of anticoagulation management with warfarin among outpatients in a tertiary hospital in Addis Ababa, Ethiopia: a retrospective cross-sectional study

Target INR Range

Number of Non-therapeutic INRs

Decreased N (%)

Unchanged N (%)

Increased N (%)

Target Range 1

INR < 2 (N = 542)

76 (14.2)

190 (35.1)

276 (50.9)

INR > 3 (N = 320)

169 (52.8)

106 (33.1)

45 (14.1)

Target Range 2

INR < 2.5(N = 331)

56 (16.9)

153 (46.2)

122 (36.9)

INR > 3.5(N = 81)

49 (60.5)

17 (21)

15 (18.5)

  1. Target Range 1 = INR 2.0–3.0 Target Range 2 = INR 2.5–3.5