Figure 22 presents forest plots of the individual study estimates of sensitivity and specificity of SPECT for diagnosing CAD in women with no known CAD. Error bars represent 95% CIs; the dashed vertical line represents the summary sensitivity and specificity for the included studies. In these studies, sensitivity varied from 62 to 93 percent, and specificity varied from 50 to 91 percent; the summary sensitivity was 83 percent, and the summary specificity was 72 percent.

Figure 22Accuracy of SPECT in four good-quality studies in women with no known CAD

From: Results

Cover of Noninvasive Technologies for the Diagnosis of Coronary Artery Disease in Women
Noninvasive Technologies for the Diagnosis of Coronary Artery Disease in Women [Internet].
Comparative Effectiveness Reviews, No. 58.
Dolor RJ, Patel MR, Melloni C, et al.

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