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Table 3 Risk of recurrent ipsilateral ischemic stroke at 2, 7, and 14 days after the presenting event based on ABCD2 and ABCD3 scores

From: Prediction of recurrent stroke with ABCD2 and ABCD3 scores in patients with symptomatic 50-99% carotid stenosis

ABCD2 Pat (%)* 2 days 7 days 14 days
n Risk (95% CI) n Risk (95% CI) n Risk (95% CI)
0-1p 13 (6%) 0 - 0 - 0 -
2p 24 (11%) 1 4% (0-12%) 1 4% (0-12%) 1 4% (0-12%)
3p 16 (7%) 1 6% (0-18%) 1 6% (0-18%) 1 6% (0-18%)
4p 38 (17%) 4 11% (1-20%) 5 13% (2-24%) 7 19% (6-32%)
5p 36 (16%) 0 - 3 9% (0-18%) 4 11% (1-22%)
6p 71 (32%) 5 7% (1-13%) 7 10% (3-17%) 10 14% (6-22%)
7p 27 (12%) 1 4% (0-11%) 1 4% (0-11%) 2 8% (0-19%)
ABCD3 Pat (%)* 2 days 7 days 14 days
n Risk (95% CI) n Risk (95% CI) n Risk (95% CI)
0-3p 39 (17%) 0 - 0 - 0 -
4p 35 (16%) 5 14% (3-26%) 6 17% (5-30%) 6 17% (5-30%)
5p 37 (16%) 1 3% (0-8%) 3 8% (0-17%) 4 11% (1-21%)
6p 73 (32%) 5 7% (1-13%) 6 8% (2-15%) 11 16% (7-24%)
7p 30 (13%) 1 3% (0-10%) 2 7% (0-16%) 3 11% (0-22%)
8p 8 (4%) 0 - 1 13% (0-35%) 1 13% (0-35%)
9p 3 (1%) 0 - 0 - 0 -
  1. *5 cases excluded because of unknown duration of the presenting event.
  2. Risk data derived from Kaplan-Meier analyses using CEA as a censor.