Correction to: CJEM (2019) 21(6):727–738 https://doi.org/10.1017/cem.2019.381

In the original article, the authors erroneously reported data from Boulanger et al. from their 2001 manuscript (reference 20 in original manuscript). Due to a transcription error they quoted a sensitivity of 0.33 (95% CI 0.01–0.91) and a specificity of 1.00 (95% CI 0.89–1.00), which gave a + LR of 24.00 and a − LR of 0.67. The correct value for sensitivity is 1.00 (95% CI 0.025–1.00) and the specificity is 0.94 (95% CI 0.79–0.99). This then gives a corresponding + LR of 10.2 (95% CI 2.43–42.9) and a − LR of 0.27 (95% CI 0.02–2.98). The pooled sensitivity for all included studies examining PCE is 0.92 (95% CI 0.88–0.95) and the pooled specificity is 0.94 (95% CI 0.92–0.95). Pooled + LR is 30.84 (95% CI 0.96–993.5) and the pooled − LR is 0.09 (95% CI 0.03–0.36). Including these corrected values does not change the overall interpretation of the data.