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Table 1 Number of clinics and their patients, proportion of pharmacy costs, and correlation between total costs including and excluding pharmacy costs by specialty

From: 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

Specialty No. of clinics No. of
patients
% of total cost
represented by pharmacy cost
(mean ± sd)
Correlation between costs including and excluding pharmacy costs1)
General clinics 4,695 3,807,917 32.04 ± 23.84 0.99
Internal medicine 3,611 4,852,887 38.23 ± 25.23 0.87
Pediatrics 2,128 2,333,778 26.18 ± 19.80 0.99
Otorhinolaryngology 1,737 2,561,254 24.10 ± 15.40 0.99
Orthopedic surgery 1,725 1,585,045 20.23 ± 21.56 0.99
Obstetrics & gynecology 1,604 873,524 21.09 ± 20.82 0.98
Ophthalmology 1,207 1,515,235 23.38 ± 17.31 0.97
General surgery 1,193 794,618 27.65 ± 23.32 0.97
Family medicine 1,055 1,009,541 34.11 ± 23.20 0.95
Urology 888 581,503 30.82 ± 23.46 0.90
Dermatology 803 779,600 29.02 ± 21.96 0.93
Psychiatry 708 308,835 19.00 ± 27.05 0.99
Anesthesiology 588 296,653 28.90 ± 25.95 0.99
Neurosurgery 362 298,801 27.49 ± 25.29 0.99
Rehabilitation medicine 276 158,182 27.17 ± 26.74 0.99
Diagnostic radiology 244 156,622 10.61 ± 21.37 0.96
Neurology 132 104,304 41.56 ± 28.60 0.92
Thoracic surgery 82 64,099 31.97 ± 23.83 0.97
Plastic surgery 74 6,251 13.22 ± 20.15 0.98
Total 23,112 22,088,649 29.76 ± 23.80 0.95
  1. 1) Pearson's correlation coefficient