Table 2

Results of the assessment of LTFU information stratified by journal

BMJ

JAMA

Lancet

NEJM

Total


Articles (n)

14

70

97

138

319


Not assessable* (n (%))

13 (93)

13 (19)

32 (33)

74 (54)

132 (41)


Consistent** (n (%))

1 (7)

45 (64)

49 (51)

45 (33)

140 (44)

Not consistent (n (%))

0

12 (17)

16 (16)

19 (14)

47 (15)


* Loss to follow-up information cannot be derived from the Kaplan-Meier plot.

** The numbers derived from the Kaplan-Meier plot matched the reported numbers at risk.

Vervölgyi et al. BMC Medical Research Methodology 2011 11:130   doi:10.1186/1471-2288-11-130

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