Using Healthcare Resources Wisely: A Predictive Support System Regarding the Severity of Patient Falls

Table 2

Operational definition of variables.

Type of variable	Name	Measurement	Definition	Supported literature
Features	Gender	Discrete	(1): Male; (2): Female	[1, 19]
	Age	Discrete	(1): 20–30; (2): 31–40; (3): 41–50; (4): 51–60; (5): 61–70; (6): 71–80; (7): ≥81	[1, 2, 18, 24]
	Patient sources	Discrete	(1): Inpatient; (2): Outpatient; (3): Emergency department	[4, 18]
	Fall history within the past 12 months	Discrete	(1): Yes; (2): No	[2, 17, 19]
	Ability of independent activity	Discrete	(1): Independence; (2): Partial independence; (3): Full dependence	[2, 17]
	Companionship	Discrete	(1): Yes; (2): No	[2, 21]
	Use of assistive devices	Discrete	(1): Yes (2): No	[21]
Target	Severity of falls	Discrete	(1): No adverse effect; (2): Mild adverse effect; (3): Severe adverse effect