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Retrieval of Individual Participant Data for Exercise Meta-Analyses May Not Be Worth the Time and Effort
George A Kelley1, Kristi S Kelley1
1School of Public Health, Department of Biostatistics, West Virginia University, Morgantown, WV 26506-9190, USA.
Purpose:
While individual participant data (IPD) meta-analyses are considered the gold standard for meta-analysis, the feasibility of obtaining IPD may be problematic.
Methods:
Using data from a previous meta-analysis of 29 studies on exercise in adults with arthritis and other rheumatic diseases, the percentage of studies in which useable IPD was provided was calculated.
Results:
Eight of 29 authors (28%, 95% CI = 11% to 44%) provided IPD. Using logistic regression, neither year of publication (odds ratio = 1.05, 95% CI = 0.90 to 1.27, p = 0.58) nor country (odds ratio = 1.36, 95% CI = 0.20 to 10.9, p = 1.00) was significantly associated with the obtainment of IPD.
Conclusions:
The retrieval of IPD for exercise meta-analyses may not be worth the time and effort. However, further research is needed before any final recommendations can be made.
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