This graph has four separate panels. Each panel contains a vertical forest plot.

In each panel, the horizontal axis is labeled "Study number" and numbered 1, 10, 20, 30, and so on up to 100. The vertical axis is labeled "Difference in percentage healed" and numbered minus 40, minus 20, 0, 20, 40, 60. There is a horizontal line at difference = 20.

In each panel, there are 100 studies, numbered 1 to 100. For each study there is a vertical line with a point marked in the middle. About half of the points are above the horizontal line at difference = 20, half below. In each panel many of the vertical lines cross difference = 20. Some do not. These are marked with an open diamond symbol at the bottom of the graph.

The first panel is entitled "95% confidence intervals". There are six open diamonds.

The second panel is entitled "99% confidence intervals". There are two open diamonds.

The third panel is entitled "90% confidence intervals". There are eight open diamonds.

The fourth panel is entitled "50% confidence intervals". There are 51 open diamonds.

Back to Clinical Biostatistics: Estimation.

This page maintained by Martin Bland.

Last updated: 17 July, 2006.