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Re: Statistics Notes: Diagnostic tests 2: predictive values
Dear Editor,
I noticed a calculation error in the text, that does not alter the main message of the text but might confuse the reader.
"Similarly, among the 81 patients with normal liver scans the proportion of correct diagnoses was 54/81 = 0.59."
Please correct me but 54/81 = 0.67
Sincerely, M. Scheel
Competing interests: No competing interests