Figure 4.

Emergence time and incidence of prolonged emergence per resident. Median (interquartile range) emergence time and incidence of prolonged emergence (95% confidence interval) for 27 clinical anesthesia residents during 3 years of residency training. Resident identification was ordered from lowest to greatest values for emergence time and incidence of emergence prolongation. For emergence time, 205 pair differences for 351 total pair comparisons were observed by nonparametric Wilcoxon method (P < 0.01). Residents with significantly different prolongation incidences are represented by solid black columns (analysis of means for proportions; P < 0.01)