Table 2. Characteristics of Skin Cancer Screening Visits by Clinician Type Based on 33 647 Unique Visits.
| Visit-Level Patient Characteristic | No. (%) of Visits | P Valuea | ||
|---|---|---|---|---|
| All Clinicians | PA Only | Dermatologist Only | ||
| No. of visits | 33 647 | 17 162 (51.0) | 16 485 (49.0) | NA |
| Sex | .12 | |||
| Male | 13 657 (40.6) | 6895 (40.2) | 6762 (41.0) | |
| Female | 19 990 (59.4) | 10 267 (59.8) | 9723 (59.0) | |
| Age, mean (SD), y | 55.5 (17.1) | 56.2 (17.0) | 54.8 (17.2) | <.001 |
| Personal history of melanoma | 3572 (10.6) | 1644 (9.6) | 1928 (11.7) | <.001 |
| History of any skin cancer | 13 120 (39.0) | 7689 (44.8) | 5431 (32.9) | <.001 |
| Outcome | ||||
| Total biopsies performed | 7355 (21.9) | 3928 (22.9) | 3427 (20.8) | <.001 |
| Biopsy of pigmented lesions | 4039 (12.0) | 2213 (12.9) | 1826 (11.1) | <.001 |
| NMSC diagnosed | 2024 (6.1) | 1031 (6.1) | 993 (6.1) | .98 |
| Melanoma diagnosed | ||||
| In situ (% visits) | 98 (0.3) | 40 (0.2) | 58 (0.4) | .04 |
| Invasive (% visits) | 51 (0.2) | 26 (0.2) | 25 (0.2) | >.99 |
| Breslow depth, median (IQR), mm | 0.42 (0.3-0.63) | 0.41 (0.29-0.59) | 0.44 (0.35-0.76) | .36 |
| Breslow depth, mean (SD), mm | 0.72 (1.25) | 0.86 (1.72) | 0.58 (0.32) | .44 |
Abbreviations: IQR, interquartile range; NA, not applicable; NMSC, nonmelanoma skin cancer; PA, physician assistant.
a
P value compares data for dermatologist only with data for PA only.