Approach n OT (min) LOS (days)
HAL
Lotan et al. [9]
Weighted Meanh

419
419

204
204

3
3
LAP
Raman et al. [4]
Park et al. [2]
Raybourn et al. [7]
Tugcu et al. [3]
Weighted Mean

22
38
10
13
83
 
25
172.4
165
114
149.8

2.21
3.9
2.1
2.11
2.95
LESS
Raman et al. [4]
Park et al. [2]
Raybourn et al. [7]
Tugcu et al. [3]
Weighted Mean

11
19
11
14
55
 
122
190.8
151
117.5
150.4

2.04
2.7
2.36
2.07
2.34
hWeighted mean from 9 studies compiled in Lotan et al. [9]
Table 5: HAL, LAP, and LESS contemporary studies used to generate weighted means of OT and LOS.