Van Dijk JF, Kappen TH, van Wijck AJ, Kalkman CJ & Schuurmans MJ (2012) The diagnostic value of the numeric pain rating scale in older postoperative patients. Journal of Clinical Nursing 21–22, 3018–3024.
In the article mentioned above, the sensitivity and specificity were reversed erroneously. The sensitivity of NRS >3 must be 97·2% and the specificity 72%. The sensitivity of NRS >4 must be 96·7% and specificity 83%. The sensitivity of NRS >5 must be 85% and the specificity 94%. The conclusion in the article presented is correct. The appropriate ROC curve:
The authors sincerely apologise for this error.