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. Author manuscript; available in PMC: 2009 Sep 15.
Published in final edited form as: Med Decis Making. 2008 Nov 17;29(2):247–256. doi: 10.1177/0272989X08327110

Table 1.

Trial A Fisher’s Exact Test Method – Death @ 30 Days for Intervention Arm B. Cumulative Enrollment and Events

Control (Expected) Intervention Arm B (Observed)
Period Events Patients Event Rate
(%)
Events Patients Event
Rate (%)
p
1 0 0 0.0 0 5 0.0 *
2 0 17 0.0 0 16 0.0 *
3 0 48 0.0 1 52 1.9 1.000
4 0 135 0.0 4 131 3.1 0.122
5 1 268 0.4 6 279 2.2 0.124
6 4 463 0.9 12 486 2.5 0.078
7 5 764 0.7 21 794 2.6 0.003
8 8 1,089 0.7 30 1,118 2.7 <0.001
9 11 1,412 0.8 36 1,459 2.5 <0.001
10 16 1,805 0.9 50 1,882 2.7 <0.001
11 21 2,173 1.0 59 2,277 2.6 <0.001
12 33 2,701 1.2 66 2,824 2.3 0.003
13 46 3,360 1.4 81 3,470 2.3 0.005
14 46 3,421 1.3 81 3,537 2.3 0.005