Skip to main content
. Author manuscript; available in PMC: 2014 Dec 3.
Published in final edited form as: Ann Emerg Med. 2014 Jun 18;64(6):591–603. doi: 10.1016/j.annemergmed.2014.05.031

Table 4.

a. This table illustrates the preferred number of flexible rooms given various changes in service times. Additionally, this table shows the difference in mean wait times for the preferred number of flexible beds as compared to the optimal 3-bed Flex Track policy.
**All Times are in Minutes (99% CI)**
Changes to
Service Time
Preferred
Number
of Flex
Beds
Mean Wait for Optimal Policy vs. 3-bed Flex Track Policy
Overall ESI 2 ESI 3 ESI 4 ESI 5
10% Decrease 4 −0.3 (−0.32 to −0.27) −0.2 (−0.21 to −0.19) −1.8 (−1.83 to −1.77) 1.3 (1.24 to 1.36) 4.3 (4.1 to 4.5)
5% Decrease 4 −0.2 (−0.23 to −0.17) −0.3 (−0.31 to −0.29) −3.2 (−3.25 to −3.15) 2.8 (2.71 to 2.89) 9.5 (9.2 to 9.8)
5% Increase 3 -- -- -- -- --
b. This table illustrates the preferred number of flexible rooms given various changes in service times. Additionally, this table shows the difference in mean wait times for the preferred number of flexible beds as compared to a standard Fast Track policy.
**All Times are in Minutes (99% CI)**
Changes to
Service Time
Preferred
Number
of Flex
Beds
Mean Wait for Optimal Policy vs. Fast Track Policy
Overall ESI 2 ESI 3 ESI 4 ESI 5
10% Decrease 4 −4.3 (−4.38 to −4.22) −1.3 (−1.31 to −1.29) −11.8 (−12.0 to −11.6) 3.4 (3.3 to 3.5) 12.6 (12.2 to 13.0)
5% Decrease 4 −6.5 (−6.6 to −6.4.) −1.8 (−1.82 to −1.79) −20.4 (−20.7 to −20.1) 7.1 (6.9 to 7.3) 19.4 (18.9 to 19.9)
5% Increase 3 −16.5 (−16.9 to −16.1) −2.3 (−2.33 to −2.27) −53.6 (−54.7 to −52.5) 14.8 (14.4 to 15.2) 88.7 (85.9 to 91.5)

Note: If the value in the table is negative, the mean wait for the Optimal Policy is less than the 3-bed Flex Track Policy (by the amount listed), if the value is positive, the mean wait time for the Optimal Policy is greater than the 3-bed Flex Track Policy (by the amount listed).

Note: If the value in the table is negative, the mean wait for the Optimal Policy is less than the Fast Track Policy (by the amount listed), if the value is positive, the mean wait time for the Optimal Policy is greater than the Fast Track Policy (by the amount listed).