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Figure 1.
Probability plot of change scores of radiographic damage of two drugs. The x axis shows the cumulative probability and the y axis the actual values. Every single observation is plotted in the curve. The horizontal lines represent a possible binomial cut off point (change of 0 and change of -7).
Figure 2.
The entire group in reality shows no progression, but there is random measurement error (films scored with the time sequence concealed). The mean change score is 0 (95% CI -1.06 to 1.06).
Figure 3.
Forty per cent of the patients show true repair and no measurement error is present. The mean change score is -1.62 (95% CI -2.30 to -1.04).
Figure 4. Forty per cent of the cases showing true repair combined with measurement error, by randomly matching the putative true repair scores with putative error scores. The mean change score is -1.7 (95% CI -2.9 to -0.52).
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
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