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Table 2 Comparison of 3 month mortality in drug and placebo groups

From: Role of oral Minocycline in acute encephalitis syndrome in India – a randomized controlled trial

3 month mortality Drug (N = 140) Placebo (N = 141) RR (95 % CI) for death with Drug P*
N % N %
Dead 43 30·7 52 36·9 0·83 (0·60-1·15) 0·270
Alive 92 65·7 84 59·5
untraced 5 3·6 5 3·6   
Age > 12 years (n = 100) N = 50 N = 50  
Dead 15 30·0 21 42·0 0·70 (0·41-1·18) 0·173
Alive 32 64·0 25 50·0
untraced 3 6·0 4 8·0
Age < =12 years       
(n = 181) N = 90 N = 91   
Dead 28 31·1 31 34·1 0·92 (0·61-1·40) 0·709
Alive 60 66·6 59 63·7   
untraced 2 2·2 1 1·1   
Considering that all those lost to follow up were dead at 3 months
Dead 48 34·3 57 40·4 0·85 (0·63-1·15) 0·345
Alive 92 65·7 84 59·6   
Considering that all those lost to follow up were alive at 3 months
Dead 43 30·7 52 36·9 0·83 (0·60-1·16) 0 · 274
Alive 97 69·3 89 63·1
JE IgM positive patients (29)
Dead (7) 2 28.6 5 71.4 0.33 (0.03-2.72) 0.384
Alive (20) 11 55.0 9 45.0   
untraced (2) 2 28.6 0 0   
  1. *Chi square test RR: relative risk 95 % CI: 95 % confidence intervals