. Author manuscript; available in PMC: 2014 Sep 3.

Published in final edited form as: Med Decis Making. 2013 Mar 20;33(8):976–985. doi: 10.1177/0272989X13478194

Table 2.

Process duration means, standard deviations, and distributions in the model fit using Arena 12.0 Input Analyzer. The distributions included shifted lognormal (LOGN), uniform (UNIF), shifted beta (BETA), shifted gamma (GAMM), and a truncated normal (NORM).

Model Process	Duration Mean (minutes)	Standard Deviation (minutes)	Probability Distribution
Prep	17.12	5.39	6.5 + LOGN(11.5, 9.4)
Procedure Review	23.07	8.63	8 + BETA(1.14, 1.28)
Sedation	12.49	4.26	5 + GAMM(3.12, 2.41)
Procedure	21.80	10.26	8 + LOGN(14.1, 11.5)
Recovery	50.47	14.55	22 + LOGN(29, 17.4)
Room Turnover	2.41	1.28	NORM(2.42, 1.28)