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. 2021 Sep 7;23(9):e29396. doi: 10.2196/29396

Table 2.

Physicians per specialty across each user group.

Specialty Low use:
0 to 0.5, n (%)
Same use:
>0.5 to <1.25, n (%)
High use:
1.25 to <6.0, n (%)
Very high use:
≥6.0, n (%)
Family medicine (n=13,244) 2366 (17.9) 9715 (73.4) 1042 (7.9) 121 (0.9)
Medicine
Emergency medicine (n=230) 57 (24.8) 126 (54.8) 41 (17.8) 6 (2.6)
Internal medicine (n=999) 233 (23.3) 604 (60.5) 147 (14.7) 15 (1.5)
Infectious diseases (n=148) 27 (18.2) 101 (68.2) 20 (13.5) 0 (0)
Critical care (n=99) 29 (29.3) 53 (53.5) 13 (13.1) ≤5 (≤5.1)
Endocrinology (n=269) 18 (6.7) 215 (79.9) 34 (12.6) ≤5 (≤1.9)
Nuclear medicine (n=48) 15 (31.3) 24 (50.0) 6 (12.5) ≤5 (≤10.4)
Hematology (n=217) 23 (10.6) 164 (75.6) 27 (12.4) ≤5 (≤2.3)
Cardiology (n=684) 77 (11.3) 527 (77.0) 78 (11.4) ≤5 (≤0.7)
Respirology (n=308) 32 (10.4) 237 (76.9) 35 (11.4) ≤5 (≤1.6)
Geriatric medicine (n=152) 29 (19.1) 105 (69.1) 16 (10.5) ≤5 (≤3.3)
Rheumatology (n=213) 19 (8.9) 172 (80.8) 22 (10.3) 0 (0)
Anesthesiology (n=1179) 480 (40.7) 597 (50.6) 101 (8.6) ≤5 (≤0.4)
Nephrology (n=242) 23 (9.5) 198 (81.8) 20 (8.3) ≤5 (≤2.1)
Clinical immunology (n=84) 22 (26.2) 56 (66.7) 6 (7.1) 0 (0)
Gastroenterology (n=345) 39 (11.3) 281 (81.4) 24 (7.0) ≤5 (≤1.4)
Obstetrics and gynecology (n=808) 98 (12.1) 659 (81.6) 45 (5.6) 6 (0.7)
Other specialties
Psychiatry (n=2061) 328 (15.9) 1326 (64.3) 378 (18.3) 29 (1.4)
Diagnostic radiology (n=624) 179 (28.7) 355 (56.9) 84 (13.5) 6 (1.0)
Medical oncology (n=269) 34 (12.6) 200 (74.3) 35 (13.0) 0 (0)
Pediatrics (n=1487) 395 (26.6) 938 (63.1) 146 (9.8) 8 (0.5)
Radiation oncology (n=211) 14 (6.6) 178 (84.4) 19 (9.0) 0 (0)
Neurology (n=410) 53 (12.9) 321 (78.3) 33 (8.0) ≤5 (≤1.2)
Physical medicine and rehabilitation (n=211) 48 (22.7) 146 (69.2) 16 (7.6) ≤5 (≤2.4)
Dermatology (n=236) 52 (22.0) 173 (73.3) 11 (4.7) 0 (0)
Surgery (n=2868) 536 (18.7) 2212 (77.1) 104 (3.6) 16 (0.6)
Remaining smaller specialties (n=384) 91 (23.7) 246 (64.1) 43 (11.2) 4 (1.0)
Miscellaneous (n=353) 105 (29.7) 69 (19.5) 126 (35.7) 53 (15.0)