Do differences in profiling criteria bias performance measurements? Economic profiling of medical clinics under the Korea National Health Insurance program: An observational study using claims data

Table 4 Agreement in decile rankings between the baseline cost-efficiency index and each cost-efficiency index alternative by specialty, assessed using the weighted kappa statistic

Specialty	CI_2	CI_3	CI_4	CI_5	CI_6	CI_7	CI_8
General clinics	0.49	0.99	0.49	0.64	0.33	0.63	0.33
Internal medicine	0.37	1.00	0.37	0.80	0.33	0.80	0.33
Pediatrics	0.65	1.00	0.65	0.90	0.62	0.89	0.62
Otorhinolaryngology	0.61	1.00	0.61	0.55	0.36	0.55	0.36
Orthopedic surgery	0.72	1.00	0.72	0.70	0.56	0.70	0.56
Obstetrics & gynecology	0.64	1.00	0.64	0.80	0.58	0.80	0.57
Ophthalmology	0.56	1.00	0.56	0.80	0.52	0.80	0.52
General surgery	0.56	1.00	0.56	0.65	0.40	0.65	0.39
Urology	0.40	1.00	0.40	0.76	0.37	0.76	0.37
Dermatology	0.41	1.00	0.41	0.77	0.40	0.77	0.40
Family medicine	0.45	1.00	0.45	0.72	0.34	0.71	0.34
Psychiatry	0.67	1.00	0.67	0.62	0.51	0.62	0.51
Anesthesiology	0.75	1.00	0.75	0.65	0.52	0.65	0.52
Neurosurgery	0.70	1.00	0.70	0.64	0.47	0.64	0.47
Rehabilitation medicine	0.83	1.00	0.83	0.66	0.56	0.66	0.56
Diagnostic radiology	0.79	1.00	0.79	0.82	0.71	0.81	0.68
Neurology	0.43	1.00	0.43	0.62	0.31	0.62	0.32
Plastic surgery	0.83	1.00	0.83	0.68	0.63	0.68	0.63
Thoracic surgery	0.64	1.00	0.64	0.54	0.37	0.54	0.38

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