Table 2: Stress factor according to type of stress [18].

Stress	Stress factor
Fever per degree over 37°C	1.1
Minor injury	1.2
Clean wound	1.2
Mild infection	1.2
Minor surgery	1.2
Major surgery	1.3
Infected wound	1.3
Bone fracture	1.3
Moderate infection	1.4
Malignancy	1.5
Respiratory diseases	1.5
Major trauma	1.5
Major infection (sepsis)	1.5
Severe burn	2.0
Combination	2.0