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Table 5 Mean (95% CI) subspecialty% of questions answered correctly, broken down by number of elective exposures in subspecialty of interest

From: Impact of subspecialty elective exposures on outcomes on the American board of internal medicine certification examination

Exposure   0 1-2 ≥3 p
Cardiology n 18 39 74  
  Mean (%) 79.6 78.5 81.0 0.41
  (95% CI) (74.9-84.2) (75.5-81.6) (78.8-83.3)  
Endocrinology n 43 74 14  
  Mean (%) 77.7 78.3 83.6 0.19
  (95% CI) (74.6-80.8) (75.5-81.1) (80.5-86.8)  
Gastroenterology n 49 63 19  
  Mean (%) 76.9 78.4 82.1 0.17
  (95% CI) (73.8-80.0) (76.1-80.8) (77.2-86.9)  
Hematology n 66 63 2  
  Mean (%) 81.4 80.7 91.5 0.49
  (95% CI) (78.2-84.5) (77.4-83.9) (NA)  
Infectious Diseases n 20 64 47  
Mean (%) 80.9 79.3 81.8 0.45
  (95% CI) (75.7-86.2) (76.8-81.8) (78.8-84.7)  
Oncology n 62 68 1  
  Mean (%) 72.6 75.9 86.0 NA
  (95% CI) (69.4-75.7) (72.9-78.8) (NA)  
Nephrology n 54 71 6  
  Mean (%) 83.3 84.3 75.8 0.27
  (95% CI) (76.9-86.7) (81.6-86.9) (54.9-96.8)  
Pulmonary n 38 79 14  
  Mean (%) 73.2 78.6 79.7 0.03
  (95% CI) (69.8-76.7) (76.1-81.1) (73.9-85.5)  
Rheumatology n 42 82 7  
  Mean (%) 80.5 80.2 86 0.35
  (95% CI) (77.6-83.4) (77.8-82.6) (80.3-91.7)  
Primary Care n 101 26 4  
  Mean (%) 75.3 78.0 74.5 0.35
  (95% CI) (73.7-76.9) (74.3-81.6) (56.8-92.2)  
  1. p-values calculated using 1-way ANOVA.