Table 2.

Poisson Regression Model Estimates.

Model outcome	Estimated effect of time (% change)1	P-value
Total intubations per number of years in fellowship	1.86 (−1.38, 5.24)	0.27
Total central lines per number of years in fellowship	−5.72 (−9.45, −1.82)	0.004
Total arterial lines per number of years in fellowship	−7.80 (−13.90, −1.25)	0.02

¹Multiplicative effect in terms of percent change with 95% confidence interval; i.e., for every 1 year increase, the estimated rate of total central lines completed during fellowship per number of years in the fellowship program decrease by 5.72%, on average.