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Figure 3 | BMC Medical Informatics and Decision Making

Figure 3

From: Pretest probability assessment derived from attribute matching

Figure 3

Plot of the frequency of each discrete pretest probability as a function of the actual pretest probability, estimated on the validation population using two methods. A Gaussian curve was fitted to the attribute matching points (solid line) and the logistic regression points (dashed line). The median pretest probability estimate from attribute matching was 5.5% (1st–3rd quartiles: 1.0–10.5%), versus 24.0% (1st–3rd quartile 10.0–30.0%) for the logistic regression method (P < 0.001, Mann Whitney U). Because of rounding, each point could represent more than one unique match profile.

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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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