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. 2000 Jan;15(1):31–37. doi: 10.1046/j.1525-1497.2000.01239.x

Table 1.

Event Rate per 100 Patient Years by Time Spent Below, In, and Above Therapeutic Range

Below In Above
Events Baseline (Range) Baseline (Range) Baseline (Range)
Thromboembolic first events
 Fatal 0.05 (0–0.30) 0.01 (0–0.05) 0.00 (0–0.05)
 Life-threatening 1.58 (1.0–6.0) 0.47 (0–1.0) 0.11 (0–1.0)
 Serious 14.68 (8.0–16.0) 2.52 (1.0–6.0) 2.29 (1.0–6.0)
Thromboembolic subsequent events
 Fatal 0.01 (0–0.3) 0.00 (0–0.05) 0.01 (0–0.05)
 Life-threatening 0.32 (0–5.0) 0.04 (0–1.0) 0.44 (0–1.0)
 Serious 2.45 (0–6.0) 0.88 (0–6.0) 1.60 (1.0–6.0)
Hemorrhagic first events
 Fatal 0.05 (0–0.3) 0.04 (0–0.3) 0.20 (0–0.6)
 Life-threatening 0.61 (0–1.0) 0.49 (0–1.0) 2.66 (0.5–4.0)
 Serious 5.87 (3.0–8.0) 5.12 (3.0–8.0) 12.83 (10.0–20.0)
Hemorrhagic subsequent events
 Fatal 0.02 (0–0.3) 0.02 (0–0.3) 0.07 (0–0.6)
 Life-threatening 0.30 (0–1.0) 0.25 (0–1.0) 0.96 (0.5–4.0)
 Serious 1.30 (0–8.0) 1.85 (0–8.0) 5.73 (3.0–20.0)