Exercise and Bone Density: A Meta-Analysis
Abstract
Purpose: Use the meta-analytic approach to examine the effects of exercise on bone mineral density (BMD) using individual patient data (IPD) and to compare these results with summary data from the same studies. Scope: The specific aim for this project period was to retrieve IPD from existing exercise training studies dealing with the effects of exercise on BMD. Major findings: Of the 76 eligible studies we were able to obtain IPD from 29 (38.2%). Binary multiple logistic regression analysis revealed a trend suggesting that authors of studies conducted in the United States were less likely to supply IPD when compared with authors who conducted studies in other countries (adjusted odds ratio = 0.324, 95% confidence interval = 0.104 to 1.004) . Only 19.0% of authors from studies conducted in the United States versus 52.9% of authors from other countries provided us with IPD. Results/Significance: The results suggest moderate success in the acquisition of IPD for this data set. In addition, it appears that greater success can be obtained when IPD for this topic is requested from studies conducted in countries other than the United States.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2001
- Accession Number
- ADA415913
Entities
People
- George Kelley
Organizations
- Massachusetts General Hospital