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Table 3 Factors associated with holding board certification in internal medicine

From: Internal medicine board certification and career pathways in Japan

  Odds ratio 95% Confidence interval P value
Sex
  Male 1.00 Reference  
  Female 0.87 0.79 0.97 0.01
Years since registration as physician
  0–9 1.00 Reference  
  10–19 1.53 1.32 1.77 <0.001
  20–29 1.69 1.46 1.96 <0.001
  30–39 1.28 1.10 1.50 <0.001
  40–49 0.54 0.45 0.64 <0.001
  ≥ 50 0.22 0.18 0.28 <0.001
Type of municipality
  City 1.00 Reference  
  Town or village 0.93 0.80 1.08 0.31
Type of institution
  Academic hospital 1.00 Reference  
  Other hospital 0.75 0.67 0.84 <0.001
  Clinics and others 0.65 0.57 0.74 <0.001
Main area of practice
  Internal medicine 1.00 Reference  
  Subspecialty area 1.51 1.40 1.64 <0.001