Optimization of Tree-Based Machine Learning Models to Predict the Length of Hospital Stay Using Genetic Algorithm

Table 2

Potential variables affecting LOS.

No.	Author	Ref.	Age	Sex	Insurance	Marital status	Medical advice number	Physician’s expertise level
1	Baek et al., 2018	[13]
2	Meadows et al., 2018	[14]
3	Alahmar et al., 2018	[10]
4	Thompson et al., 2018	[17]
5	Daghistani et al., 2019	[4]
6	Danilov et al., 2019	[12]
7	Ray-Zack et al., 2019	[15]
8	Muhlestein et al., 2019	[11]
9	Steele and Thompson, 2019	[16]
10	Abd-Elrazek et al., 2019	[18]
11	Mahboub et al., 2021	[20]
12	Alsinglawi et al., 2022	[21]