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Distribution of raw values of the DUDIT and DUDIT C. Single dots represent the results from a single participant. A dotted line marks the optimal cut-off score based on Youden’s Index J. (A) Raw values and cut-off for DUDT in total sample. (B) Raw values and cut-off for DUDIT-C in total sample. (C) Raw values and cut-off for DUDIT in mild and moderate cases. (D) Raw values and cut-off for DUDIT-C in mild and moderate cases.
