Erratum
After publication of this work [1] it was noticed that the incorrect versions of Figs. 4 and 5 were used.
Cumulative Sum (CUSUM) for examination of the bladder neck (n = 383). Acceptable failure rate set at 0.01 and unacceptable failure rate set at 0.03. Type I and II error rate 0.1. Each horizontal line on the y-axis represents a control line (h = 1.96)]
Cumulative Sum (CUSUM) score for completion of full flexible cystoscopy (n = 383). Acceptable failure rate set at 0.05 and unacceptable failure rate at 0.15. Type I and II error rates 0.10. Each horizontal line on the y-axis represents a control line (h = 1.81)]
Please see below the correct versions of Figs. 4 and 5.
We apologise for these errors.
Reference
MacKenzie KR, Aning J. Defining competency in flexible cystoscopy: a novel approach using cumulative Sum analysis. BMC Urol. 2016;16:31.
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The online version of the original article can be found under doi:10.1186/s12894-016-0143-9.
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MacKenzie, K.R., Aning, J. Erratum to: Defining competency in flexible cystoscopy: a novel approach using cumulative Sum analysis. BMC Urol 16, 57 (2016). https://doi.org/10.1186/s12894-016-0175-1
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DOI: https://doi.org/10.1186/s12894-016-0175-1