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Fig. 3 | BMC Medical Research Methodology

Fig. 3

From: The effect of disease misclassification on the ability to detect a gene-environment interaction: implications of the specificity of case definitions for research on Gulf War illness

Fig. 3

Mean Medical Outcomes Study’s Short Form-12 (SF-12) Mental (A) and Physical (B) Summary Scores by GWI case definition in the full deployed USMHS sample (n = 6,497). The SF-12 scales were normed to 1990 U.S. population means of 60.76 for the Mental and 56.58 for the Physical Summary Scores and standard deviation of 10, with higher scores indicating better health status

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