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Figure 3 | BMC Medical Research Methodology

Figure 3

From: Transformations of summary statistics as input in meta-analysis for linear dose-response models on a logarithmic scale: a methodology developed within EURRECA

Figure 3

Simulation results for rXY from different reporting options where the true rXY was 0.5. A) b from linear regression of Y 0 on X 0 ; B) b from linear regression of Y on X 0 ; C) b from linear regression of Y 0 on X; D) b from linear regression of Y on X and from the linear regression of log 10 (Y 0 ) on log 10 (X 0 ). Circles indicate that the reported univariate statistic was mean + SD, squares indicate median and IQR, diamonds indicate median and range, and triangles indicate geometric mean. Bars represent 95% confidence intervals. In each group the three bars from left to right are for sample sizes of 100, 200 and 500 individuals, respectively.

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