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Table 3 Effect of various methods of handling missing response in trial

From: Tranexamic acid for patients with traumatic brain injury: a randomized, double-blinded, placebo-controlled trial

Methods of analysis

PIH in TXA and placebo group

Group

n/N

Rate

RD

RR

(person)

(%)

[95% CI]

[95% CI]

1. Complete case analysis

TXA

16/115

14%

−0.11

0.57

 

Placebo

28/114

25%

[(−0.21)-(−0.01)]

[0.32-0.99]

2. Assuming poor outcome

TXA

21/120

18%

−0.10

0.65

 

Placebo

32/118

27%

[(−0.20)-(−0.01)]

[0.40-1.05]

3. Assuming good outcome

TXA

16/120

13%

−0.10

0.56

 

Placebo

28/118

24%

[(−0.20)-(−0.01)]

[0.32-0.98]

4. Extreme case favoring placebo

TXA

21/120

18%

−0.06

0.74

 

Placebo

28/118

24%

[(−0.16)-0.04]

[0.44-1.22]

5. Extreme case favoring TXA

TXA

16/120

13%

−0.14

0.49

 

Placebo

32/118

27%

[(−0.24)-(−0.04)]

[0.29-0.85]