Table 2.

Worked examples of patient/patient group scores using the continuity measures^a

	UPC	Bice–Boxerman	SLICC	OPR
GP A’s List			For GP A’s list, Dr A’s patients have 22 appointments with Dr A and 41 appointments with any GP The SLICC is 22/41 = 53.7%	For GP Dr A, the OPR is: 22 appointments with their own patients/35 appointments provided by Dr A in total during this time period (with either GP’s patients) = 63.9% For GP Dr B, the OPR is: 17 appointments with their own patients / 31 appointments provided by Dr B in total during this time period (with either GP’s patients) = 54.8% Uses only appointments provided by list-holding GPs as denominator when calculating the whole-practice OPR If there were more list-holders, appointments with their patients would also be included in the denominator
Patient 1 A	Cannot calculate	Cannot calculate
Patient 2 AA	1	1
Patient 3 AB	0.5	0
Patient 4 AAB	0.67	0.33
Patient 5 ABC	0.33	0
Patient 6 AABB	0.5	0.33
Patient 7 AABC	0.5	0.17
Patient 8 AAABBB	0.5	0.4
Patient 9 AAAABBBB	0.5	0.43
Patient 10 AAAABCDE	0.5	0.21
	Mean: 0.56	Mean: 0.32
GP B’s List			For GP B’s list the SLICC is: 17 appointments with Dr B/41 appointments with any GP = 41.5%
Patient 11 B	Cannot calculate	Cannot calculate
Patient 12 BB	1	1
Patient 13 AC	0.5	0
Patient 14 ABB	0.66	0.33
Patient 15 ACC	0.66	0.33
Patient 16 AABC	0.5	0.17
Patient 17 ABBC	0.5	0.17
Patient 18 AABBBC	0.5	0.27
Patient 19 AAABBBBC	0.5	0.32
Patient 20 AABBCCCC	0.5	0.29
	Mean: 0.59	Mean: 0.32
Whole practice	Mean: 0.57	Mean: 0.32	47.6%	59.1%

^a Each letter is an appointment with that doctor, so A is an appointment with Dr A, B an appointment with Dr B, C an appointment with Dr C, etc. In this ‘practice’ only Drs A and B are list-holding GPs. OPR = Own Patient Ratio. SLICC = St Leonard’s Index of Continuity of Care. UPC = Usual Provider of Care.