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. 2016 Jun 7;353:i2923. doi: 10.1136/bmj.i2923

Table 3.

Characteristics of study population in HSC physician surveys, 2000-08. Figures are percentages unless stated otherwise

White men (n=12 843) Black men (n=518) White women (n=3880) Black women (342)
Age (years):
 Mean (SD) 51.4 (10.2) 50.4 (9.0) 46.4 (7.9) 44.2 (7.0)
 35-39 11.9 8.9 20.8 34.2
 40-49 34.4 42.3 48.5 40.9
 50-59 33.5 34.2 25 22.2
 ≥60 20.2 14.7 5.7 2.6
Annual income ($):
 ≤100 000 9.5 14.9 26.7 21.1
 100 001-150 000 17.8 25.9 32.7 37.7
 150 001-200 000 25 26.3 21 26.9
 200 001-250 000 16.9 14.7 10 7
 >250 000 30.9 18.3 9.6 7.3
Hours worked/ week:
 Mean (SD) 54.4 (15.0) 55.8 (17.6) 47.0 (16.0) 51.4 (15.4)
 ≤39 10.8 9.3 28.5 16.1
 40-49 20.9 23.4 24.9 27.5
 50-59 28 22.8 22.9 22.8
 ≥60 40.3 44.6 23.7 33.6
Mean (SD) years in practice 21.4 (10.7) 18.4 (9.6) 15.4 (7.9) 13.7 (7.5)
Practice type:
 Solo/2 physicians 33.9 44.4 28 29
 Group practice ≥3 physicians 35.2 20.1 28 16.7
 HMO 3.3 4.1 4.9 6.1
 Medical school 7.2 8.1 11.6 12.9
 Hospital based 12 10.4 15.6 16.4
 Other 8.3 12.9 11.9 19
Percentage revenue from Medicare 32.0 (22.3) 29.9 (23.1) 23.7 (22.2) 26.0 (22.3)
Percentage revenue from Medicaid 13.4 (15.9) 24.3 (22.9) 17.6 (20.4) 27.3 (25.6)
Specialty type:
 Internal medicine 14.6 26.6 16.9 18.4
 Family/general practice 24.2 22.4 25.3 21.1
 Pediatrics 8.3 10.8 20.2 26.3
 Medical specialties 25.2 14.9 19.6 13.5
 Surgical specialties 18.8 11.4 4.5 4.7
 Psychiatry 4.8 6.4 7.1 5.9
 Obstetrics/gynecology 4.2 7.5 6.4 10.2

HMO=health maintenance organization.

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