Table 2 By specialty comparison of two methods for categorization and percentage of physicians identified as high cost or low cost
From: Incorporating statistical uncertainty in the use of physician cost profiles
T Test (p = 0.05) | T Test (p = 0.20) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Specialty | Number of physicians (≥ 30 episodes) | Physicians assigned a different cost category when comparing t-test (p = 0.05) and percentile cut-off (%) | Fraction of physicians identified as high cost using t-test N (%) | Fraction of physicians identified as low cost using t-test N (%) | Fraction of physicians identified as high cost using t-test N (%) | Fraction of physicians identified as low cost using t-test N (%) | ||||
All Specialties | 8689 | 29.5% | 1072 | 12.3% | 1120 | 12.9% | 1652 | 19.0% | 2004 | 23.1% |
Allergy and Immunology | 77 | 27.3% | 20 | 26.0% | 19 | 24.7% | 22 | 28.6% | 30 | 39.0% |
Cardiology | 474 | 34.0% | 51 | 10.8% | 34 | 7.2% | 65 | 13.7% | 99 | 20.9% |
Cardiothoracic Surgery | 27 | 44.4% | 2 | 7.4% | 0 | 0.0% | 3 | 11.1% | 1 | 3.7% |
Dermatology | 311 | 21.2% | 102 | 32.8% | 104 | 33.4% | 117 | 37.6% | 119 | 38.3% |
Emergency Medicine | 521 | 34.9% | 43 | 8.3% | 37 | 7.1% | 85 | 16.3% | 70 | 13.4% |
Endocrinology | 97 | 33.0% | 10 | 10.3% | 10 | 10.3% | 21 | 21.6% | 15 | 15.5% |
Family/General Practice | 848 | 28.4% | 102 | 12.0% | 103 | 12.1% | 173 | 20.4% | 199 | 23.5% |
Gastroenterology | 356 | 17.4% | 77 | 21.6% | 59 | 16.6% | 101 | 28.4% | 88 | 24.7% |
General Surgery | 407 | 39.6% | 23 | 5.7% | 22 | 5.4% | 39 | 9.6% | 53 | 13.0% |
Hematology/Oncology | 122 | 36.1% | 11 | 9.0% | 7 | 5.7% | 24 | 19.7% | 26 | 21.3% |
Infectious Diseases | 89 | 32.6% | 8 | 9.0% | 13 | 14.6% | 12 | 13.5% | 18 | 20.2% |
Internal Medicine | 2158 | 24.6% | 292 | 13.5% | 382 | 17.7% | 440 | 20.4% | 625 | 29.0% |
Nephrology | 111 | 40.5% | 6 | 5.4% | 7 | 6.3% | 14 | 12.6% | 16 | 14.4% |
Neurological Surgery | 62 | 33.9% | 7 | 11.3% | 4 | 6.5% | 11 | 17.7% | 10 | 16.1% |
Neurology | 249 | 24.1% | 35 | 14.1% | 31 | 12.4% | 56 | 22.5% | 50 | 20.1% |
Obstetrics and Gynecology | 756 | 36.4% | 54 | 7.1% | 55 | 7.3% | 91 | 12.0% | 130 | 17.2% |
Ophthalmology | 421 | 18.3% | 86 | 20.4% | 89 | 21.1% | 113 | 26.8% | 128 | 30.4% |
Oral & Maxillofacial Surgery | 113 | 32.7% | 14 | 12.4% | 7 | 6.2% | 24 | 21.2% | 18 | 15.9% |
Orthopedic Surgery | 451 | 39.7% | 20 | 4.4% | 29 | 6.4% | 58 | 12.9% | 76 | 16.9% |
Otolaryngology | 191 | 19.4% | 30 | 15.7% | 37 | 19.4% | 46 | 24.1% | 66 | 34.6% |
Physical Medicine & Rehabilitation | 70 | 27.1% | 8 | 11.4% | 9 | 12.9% | 12 | 17.1% | 16 | 22.9% |
Plastic Surgery | 101 | 34.7% | 10 | 9.9% | 7 | 6.9% | 20 | 19.8% | 19 | 18.8% |
Psychiatry | 97 | 30.9% | 7 | 7.2% | 13 | 13.4% | 9 | 9.3% | 25 | 25.8% |
Pulmonary & Critical Care | 203 | 40.9% | 15 | 7.4% | 8 | 3.9% | 27 | 13.3% | 25 | 12.3% |
Rheumatology | 127 | 29.1% | 17 | 13.4% | 16 | 12.6% | 24 | 18.9% | 37 | 29.1% |
Urology | 191 | 31.9% | 20 | 10.5% | 17 | 8.9% | 37 | 19.4% | 43 | 22.5% |
Vascular Surgery | 59 | 45.8% | 2 | 3.4% | 1 | 1.7% | 8 | 13.6% | 2 | 3.4% |