Table 2.

Evidence for Lack of Comparability within Studies

	Age	Rural Patients (%)	Heart Failure (%)	Dementia (%)	COPD (%)	Revascular Hospital (%)	Impaired Mobility (%)
Chen et al 5
Cardiologists (35%)^*	75.3	9^†	17	3	16	51	13
Family physicians	77.5	42^†	24	8	22	21	23
Frances et al7
Cardiologists (38%)^*	73.7	28.3	18.0	3.4	18.6	80.1	17.4
Non-cardiologist	76.6	28.2	26.0	8.8	23.4	55.3	28.0
Norcini et al18
Cardiologists (30%)^*	66.1		29.4			41.5
Family physicians	69.2		35.2			23.4
Frances et al23
Cardiologists (50%)^*	76.6	4.0	19.5	4.5	18.0	75.6	14.2
Family physicians	78.5	11.1	27.7	12.0	23.2	53.7	26.0
Casale et al10
Cardiologists (37%)^*	66.1	10.8^†				41.2
Family physicians	70.0	26.7^†				25.0
Ayanian et al6
Cardiologists (36%)^*	71.3		32.4			72.8	7.4
Generalists	72.0		31.8			34.9	11.4
Jollis et al22
Cardiologists (26%)^*	75.0	10.9^†				59.3
Family physicians	77.0	53.3^†				39.7