Intended for healthcare professionals

CCBYNC Open access

Rapid response to:

Research

Effects of vitamin D supplementation on bone density in healthy children: systematic review and meta-analysis

BMJ 2011; 342 doi: https://doi.org/10.1136/bmj.c7254 (Published 25 January 2011) Cite this as: BMJ 2011;342:c7254

Rapid Response:

Statistics

Winzenberg et al repeatedly use the phrase "There was a trend..." to
describe a result which they have shown to be statistically
nonsignificant. "There was no trend..." would be more accurate. This is not
pedantry: why bother with statistical analysis if the results are to be
ignored?

ray@iinet.com.au

Competing interests: No competing interests

28 January 2011
Jeffrey R. Johnstone
retired
none