Table 2

(A) Univariate sensitivity analysis of the hub and spoke model based on range of values from data collected and (B) best-case scenarios for conventional phacoemulsification surgery and femtosecond laser-assisted cataract surgery

Input		Range of values		Values inputted into hub and spoke model		Cost of CPS service compared with FLACS (%)
A
Cataract workload/week		Minimum		27		82.7
		Average		55		86.3
		Maximum		96		87.8
Number of cataracts on CPS list*		Minimum		5		108.5
		Nominal		7		86.3
		Maximum		9		73.8
Number of cataracts on FL list†		Minimum		8		78.6
		Nominal		10		86.3
		Maximum		16		100.8
Initial cost of FL		Minimum		£175 000		86.7
		Average		£262 500		86.3
		Maximum		£350 000		85.7
Cost of PI		Minimum		£99		92.8
		Average		£135		86.3
		Maximum		£170		80.5
	Cataract workload/week	Number of cataracts on CPS list	Number of cataracts on FL list	Cost of PI	Cost of CPS/case	Cost of FLACS/case	Cost of CPS service compared with FLACS (%)
B
Best-case scenario for CPS	27	9	9	135	£371	£515	72.1
Best-case scenario for FLACS	96	5	10	50	£545	£381	143.2

Bold indicates where FLACS is less expensive than CPS option.
*Assuming 10 cases on FLACS list.
†Assuming seven cases on CPS list.