Skip to main content

Table 1 Reporting of the number needed to treat (NNT) and corresponding 95% confidence interval (CI) in randomised controlled trials (RCTs) in leading medical journals in the years 2003–2005

From: Calculation of NNTs in RCTs with time-to-event outcomes: A literature review

 

No. of articles

Journal

RCTs

NNT reporting

CI for NNT

BMJ

90

13

7

JAMA

199

16

4

Lancet

190

14

4

NEJM

255

19

6

Total

734

62 (8.4%)

21 (33.9%)