Empirical comparison of subgroup effects in conventional and individual patient data meta-analyses.

@article{Koopman2008EmpiricalCO,
  title={Empirical comparison of subgroup effects in conventional and individual patient data meta-analyses.},
  author={Laura Koopman and Geert J M G van der Heijden and Arno Wilhelmus Hoes and Diederick E Grobbee and Maroeska Rovers},
  journal={International journal of technology assessment in health care},
  year={2008},
  volume={24 3},
  pages={358-61}
}
OBJECTIVES Individual patient data (IPD) meta-analyses have been proposed as a major improvement in meta-analytic methods to study subgroup effects. Subgroup effects of conventional and IPD meta-analyses using identical data have not been compared. Our objective is to compare such subgroup effects using the data of six trials (n = 1,643) on the… CONTINUE READING