Clarifications & corrections

■ An Article on February 8 about a new test for spotting signs of prostate cancer said that a study showed its true positive and negative results were 92% and 94% accurate, respectively. Since publication, the study’s authors have clarified that these were in fact 93% and 95% respectively. the artin cle also said that a majority had a positive result for PSA, a type of protein – in fact, this was a minority. We are also happy to clarify that according to the study, 147 men were involved in the research, but only 101 of them were included in the analysis leading to the results.

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