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. 2018 Sep 26;362:k3640. doi: 10.1136/bmj.k3640

Table 1.

Patient and physician characteristics, according to a physician’s medical school US News & World Report (USNWR) ranking for primary care in 2002. Values are numbers (percentages) unless stated otherwise

Characteristics USNWR ranking (primary care), 2002 P value
Top 20 ≥21
Physicians
No of physicians 4039 26 283
Mean (SE) physician’s age (years) 46.9 (0.2) 45.0 (0.08) <0.001
Women 1329 (32.9) 8121 (30.9) 0.08
Credentials:
 MD (allopathic) 4013 (99.4) 23 008 (87.5) <0.001
 DO (osteopathic) 26 (0.6) 3275 (12.5)
Patients
No of Medicare hospital admissions, 2011-15 105 617 890 595
Mean (SE) patient’s age (years) 76.0 (0.08) 76.0 (0.02) 0.74
Women 63 477 (60.1) 532 577 (59.8) 0.08
Race/ethnicity:
 White 84 601 (80.1) 713 368 (80.1) 0.90
 Black 12 991 (12.3) 109 543 (012.3) 0.96
 Hispanic 4436 (4.2) 39 186 (4.4) 0.02
 Other 3591 (3.4) 28 449 (3.2) 0.054
Mean of median (SE) household income ($) 56 349 (101) 56 284 (29) 0.55
Medicaid status 29 679 (28.1) 252 039 (28.3) 0.32
Comorbidities:
 Congestive heart failure 30 630 (29.0) 255 601 (28.7) 0.14
 COPD 24 081 (22.8) 203 056 (22.8) 0.69
 Diabetes 27 651 (26.2) 229 418 (25.8) 0.03
 Hypertension 55 027 (52.1) 459 876 (51.3) 0.003
 Chronic kidney disease 32 742 (31.0) 269 851 (30.3) 0.002
 Ischaemic heart disease 35 699 (33.8) 297 459 (33.4) 0.09
 Cancer 10 668 (10.1) 89 060 (10.0) 0.81
 Depression 23 131 (21.9) 194 150 (21.8) 0.44
$

1.00 (£0.77; €0.85).

COPD=chronic obstructive pulmonary disease.

Physicians within the same hospital were compared by fitting ordinary least square regression models adjusting for hospital fixed effects, and then standard marginalization was calculated.

Standard errors were clustered at physician level.