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Table 2 Treatment differences on baseline covariates by intravenously administered alteplase status at interim analysis (N = 243)

From: Minimal sufficient balance randomization for sequential randomized controlled trial designs: results from the ESCAPE trial

Baseline covariates

IV alteplase (n = 183)

Without IV alteplase (n = 59)

Treatment (n = 96)

Control (n = 87)

p value

Treatment (n = 36)

Control (n = 23)

p value

Age (mean, SD)

68.82 (12.24)

68.69 (14.78)

0.95

73.56 (13.92)

70.26 (14.97)

0.40

NIHSS score (mean, SD)

16.54 (5.41)

17.28 (5.75)

0.38

17.83 (5.81)

15.78 (5.21)

0.16

Sex (% female)

47.92%

51.72%

0.61

52.78%

56.52%

0.78

ASPECTS score (% (8–10))

68.75%

68.97%

0.98

66.67%

73.91%

0.56

Baseline occlusion location (% MCA M1)

70.83%

70.11%

0.92

72.22%

73.91%

0.89

  1. ASPECTS Alberta Stroke Program Early CT score, NIHSS National Institute of Health Stroke Severity Scale, MCA M1 M1 segment of middle cerebral artery, SD standard deviation, IV intravenously administered