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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Prostate Cancer Prostatic Dis. 2015 Apr 7;18(2):173–181. doi: 10.1038/pcan.2015.10

Table 2.

Physician Characteristics by Physician Practice Type

Solo Group Missing
Mean (Standard Deviation) or n (%) p-value
N=462 N=1,545 N=131
Mean Primary GnRH agonist Use 2000–2007 (SD) 0.3 (0.3) 0.2 (0.3) 0.1 (0.2) <0.001
Time in Practice 385 (29.5%) 879 (67.4%) 41 (3.1%) <0.001
Male* 1–5* (5–10%) 41 (83.7%) 5–10* (10–15%) <0.001
Board Certified 407 (20.4%) 1,471 (73.8%) 115 (5.8%) <0.001
US Trained 330 (18.4%) 1,349 (75.0%) 119 (6.6%) <0.001
Medical School Affiliation <0.001
None 258 (27.2%) 639 (67.4%) 51 (5.4%)
Some 192(16.6%) 886 (76.7%) 77 (6.7%)
Missing* 10–15* (30–35%) 20 (57.1%) 1–5* (5–10%)
Physician Prostate Panel Size (prostate patients/year) <0.001
0–20 302 (26.2%) 768 (66.6%) 83 (7.2%)
21–37 119 (18.3%) 498 (76.5%) 34 (5.2%)
≥38 41 (12.3%) 279 (83.5%) 14 (4.2%)
Proportion Patients Minority <0.001
0%–6.1% 146 (18.8%) 582 (75.1%) 47 (6.1%)
6.2%–19.5% 110 (18.4%) 457 (76.6%) 30 (5.0%)
≥20.0% 206 (26.9%) 506 (66.1%) 54 (7.1%)

N=2,138

P-values by t-test for continuous variables, chi2 test for binary/categorical variables; time invariant physician measures described at first entry into cohort

*

Exact count masked to protect subject confidentiality, per Data Use Agreement