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Table 1 Descriptive statistics (N = 555)

From: Head injury on Warfarin: likelihood of delayed intracranial bleeding in patients with negative initial head CT

  Range Mean (SD) or N (%)
Age 22–97 74.19 (12.0)
Sex
 Male   175 (44.8%)
 Female   216 (55.2%)
GCS 13–15 14. 84 (1.1)
INR 1.50–22.36 2.74 (5.2)
Repeat CT   273 (69.8%)