Is theatre utilization a valid performance indicator for NHS operating theatres?

Table 2 Multiple regression model for Day Surgery list utilization. (only reference categories and retained model variables listed).

*Risk Factor*	*Model coefficient*	*Beta coefficent*	*Beta Standard Error*	*p-value*	*Change in R-Square*	*Model R-Square*
*Model Constant*	38.1	-	0.6	<0.01	-	0.603
*List volume (1 (unit)*		0.093	0.0	<0.01	0.394
*List factors*
*List Overruns*		19.2	0.4	<0.01	0.152
*Late-starts*
<30 mins		Ref
30–60 mins		-3.1	0.3	<0.01	0.007
>1 hr		-10.2	0.6	<0.01	0.014
*Personnel factors*
*Surgeon*
Surgeon 1		Ref
Surgeon 2		-13.2	0.9	<0.01	0.004
Surgeon 3		-3.8	0.5	<0.01	0.002
Surgeon 5		-5.4	1.1	<0.01	0.001
Surgeon 7		-8.7	0.6	<0.01	0.005
Surgeon 8		-12.8	1.3	<0.01	0.004
Surgeon 9		-7.3	1.2	<0.01	0.001
Surgeon 10		-4.8	0.9	<0.01	0.001
Surgeon 11		-7.4	0.6	<0.01	0.004
Surgeon 12		3.8	0.7	<0.01	0.007
Surgeon 14		-2.7	1.4	0.05	0.000
Surgeon 'others'		-4.4	0.5	<0.01	0.002
*Anaesthetist*
Anaesthetist 1		Ref
Anaesthetist 2		3.6	1.2	<0.01	0.000
Anaesthetist 5		4.6	0.9	<0.01	0.001
Anaesthetist 9		-3.4	1.1	<0.01	0.000
Anaesthetist 10		3.5	0.9	<0.01	0.000
*Session factors*
*Session type*
AM list		Ref
*Theatre*
Day Theatre 2		Ref
Day Theatre 4		2.4	0.8	<0.01	0.000
Day Theatre 5		-1.5	0.4	<0.01	0.002

ISSN: 1472-6963