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Fig. 4 | International Journal of Bipolar Disorders

Fig. 4

From: Control charts for monitoring mood stability as a predictor of severe episodes in patients with bipolar disorder

Fig. 4

Example of sensitivity and positive predictive value calculation. Calculation of the sensitivity and positive predictive value of Shewhart’s control rules to predict a depressive episode in the next 4 weeks using universal X-bar charts (with mean = 6.2 and SD = 2.5) across a sample of four anonymized patients. QIDS data used in this plot have been imputed using last value carried forward

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