Models and methods for determining the optimal number of beds in hospitals and regions: a systematic scoping review

Table 3 Key affecting factors considered by the models and methods identified

Identified models and methods		F¹	ALOS²	BOR³	CBN⁴	AR⁵	P⁶	ORU⁷	RPR⁸	WT⁹	HR¹⁰	PT¹¹	D.P¹²	T.A¹³	F.L¹⁴	Countries using these methods/models
Models	Michigan’s Bed Need methodology	1	*	*		*	*									United States
	The Status Quo model	2					*									Canada
	The Current Use Projection model	3		*			*		*							Canada
	The Trends in Acute Care Bed Use model	3	*	*		*	*	*	*							Canada
	The Israeli model	1		*		*	*		*							Israel
	The Greater Glasgow model	1		*			*			*		*				Scotland
	The Swiss Health Observatory (SHO) model	3	*	*		*	*	*								Switzerland
	Lausanne University Hospital (CHUV) model	1	*	*		*	*									Switzerland
	Basic scenario model	1	*	*		*	*									Switzerland
	Capacity model	1	*				*	*	*			*	*	*	*	New Zealand
	Score model	3		*		*						*				France
Methods	Formula method	8	*	*			*				*					Brazil, Canada, France, Greece, Iran, Switzerland, United States, United Kingdom
	Ratio method	3	*			*										France, Iran, United Kingdom
	Regression method	2	*	*		*										Canada, Singapore
	Method using the distribution of present patients	1		*												France
	Simulation method	3	*	*	*	*										Iran, Canada