Table II.
Distribution of dermatology practice based on practice size
| Region/year | Nationwide |
Northeast |
Midwest |
South |
West |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012 | 2017 | Change % | 2012 | 2017 | Change % | 2012 | 2017 | Change % | 2012 | 2017 | Change % | 2012 | 2017 | Change % | |
| Number of practices with the following practice size | |||||||||||||||
| 1 (solo) | 1446, 43% | 1427, 42% | −1 | 316, 44% | 330, 45% | +4 | 316, 47% | 306, 44% | −3 | 488, 41% | 461, 38% | −5 | 308, 42% | 311, 42% | +1 |
| 2-5 | 1425, 43% | 1518, 44% | +7 | 296, 41% | 306, 41% | +3 | 274, 41% | 301, 43% | +10 | 524, 44% | 571, 47% | +9 | 318, 44% | 330, 44% | +4 |
| 6-10 | 324, 10% | 332, 9% | +3 | 70, 10% | 68, 9% | −3 | 55, 7.5% | 58, 8% | +5 | 137, 12% | 137, 11% | 0 | 62, 9% | 68, 9% | +10 |
| >10 | 139, 4% | 155, 5% | +12 | 34, 5% | 36, 5% | +5 | 31, 4.5% | 32, 5% | +3 | 38, 3% | 48, 4% | +26 | 36, 5% | 39, 5% | +8 |
| Average practice size ± SD | 3.1 (3.9) | 3.2 (4.1) | 3.3 (4.9) | 3.3 (5.2) | 2.9 (3.9) | 3.1 (3.9) | 3.1 (3.5) | 3.2 (3.5) | 2.2 (3.7) | 3.3 (3.8) | |||||
| Number of dermatologists with the following practice size | |||||||||||||||
| 1 (solo) | 1446, 14% | 1427, 13% | −1 | 316, 13% | 330, 13% | +4 | 316, 16% | 306, 14% | −3 | 488, 13% | 461, 12% | −5 | 308, 13% | 311, 13% | +1 |
| 2-5 | 4193, 40% | 4494, 41% | +7 | 867, 37% | 902, 37% | +4 | 796, 39% | 862, 41% | +8 | 1517, 42% | 1679, 43% | +10 | 980, 42% | 1026, 41% | +5 |
| 6-10 | 2403, 23% | 2456, 22% | +2 | 531, 22% | 519, 21% | −2 | 399, 20% | 415, 20% | +4 | 1009, 28% | 1016, 26% | +1 | 464, 20% | 499, 20% | +7 |
| >10 | 2346, 23% | 2626, 24% | +12 | 655, 28% | 714, 29% | +9 | 511, 25% | 538, 25% | +5 | 602, 17% | 731, 19% | +21 | 578, 25% | 643, 26% | +11 |
SD, Standard deviation.