Combined cumulative sum (CUSUM) and chronological environmental analysis as a tool to improve the learning environment for linear-probe endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) trainees: a pilot study.

BMC Pulm Med · 2017 · PMC5297141 · PMID 28173778

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an increasing trendno p-value reported

An acceptable success rate is indicated by a declining trend in CUSUM score, whereas a lower-than-expected success rate is indicated by an increasing trend in CUSUM score.

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