Graph description: Sample size for a study of agreement between two methods of measurement, 1

The figure shows axes labeled "difference" on the vertical and "average" on the horizontal. There are solid horizontal lines through mean difference and the two 95% limits of agreement. For each of these horizontal lines, there are two other, broken lines for the confidence intervals above and below.

The confidence intervals for the 95% limits of agreement appear to be wide, and almost overlap the confidence interval for the mean difference.


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This page maintained by Martin Bland.
Last updated: 12 January, 2004.