We have been alerted to errors in the article titled “Using the National Institutes of Health Stroke Scale (NIHSS) to predict the mortality and outcome of patients with intracerebral haemorrhage” (October 2008;14:367-70). In the Abstract, the results should have referred to: "The NIHSS can predict 30-day mortality with a sensitivity of 81% and a specificity of 90%. The NIHSS can predict 5-year mortality with a sensitivity of 57% and a specificity of 92%. In predicting favourable functional outcomes at 5 years, the NIHSS had a sensitivity of 98% and a specificity of 16%." In the Discussion (second paragraph) section should have read: "When the NIHSS is used to predict 30-day mortality, it has good sensitivity (81%) and specificity (90%) using a cut-off point of 20 (0-20 vs >20). Using the same cut-off point to predict 5-year mortality, the NIHSS has a lower sensitivity (57%) but good specificity (92%). When using an NIHSS cut-off point of ≤20 to predict a good outcome among survivors at 5 years, its sensitivity was 98% but specificity was 16%. If the cut-off point is changed from 20 to 5 (0-5 vs >5), sensitivity was reduced to 72% but specificity increased to 68%."

The text has been corrected on the Journal's website at www.hkmj.org. We regret the error.