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Table 4 Mean delta-SPS (95% CI) by number of elective exposures in each specialty

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 0.09
  Mean 170.1 138.6 123.4  
  (95% CI) (137.6-202.6) (114.2-162.9) (102.5-144.2)  
Endocrinology n 43 74 14 0.84
  Mean 134.8 131.7 146.4  
  (95% CI) (113.7-155.8) (110.5-153.0) (96.9-195.9)  
Gastroenterology n 49 63 19 0.64
  Mean 141.7 132.5 121.2  
  (95% CI) (118.0-165.5) (114.0-151.0) (65.6-176.7)  
Hematology n 66 63 2 0.64
  Mean 137.4 132.7 81.50  
  (95% CI) (115.9-158.9) (112.8-152.6) (NA)  
Infectious Diseases n 20 64 47 0.45
Mean 133.2 125.8 146.3  
  (95% CI) (83.5-182.8) (105.7-146.0) (123.6-169.0)  
Oncology n 62 68 1 NA
  Mean 135.6 132.5 176.0  
  (95% CI) (113.3-157.9) (113.0-152.0) (NA)  
Nephrology n 54 71 6 0.06
  Mean 140.6 136.2 55.33  
  (95% CI) (116.6-164.5) (117.7-154.7) (−33.2-143.9)  
Pulmonary n 38 79 14 0.14
  Mean 112.9 145.6 128.7  
  (95% CI) (89.4-136.5) (125.8-165.3) (81.4-176.0)  
Rheumatology n 42 82 7 0.32
  Mean 119.0 142.7 127.6  
  (95% CI) (91.3-146.6) (124.6-160.9) (73.7-181.4)  
Primary Care n 101 26 4 0.28
  Mean 131.3 152.8 89.0  
  (95% CI) (114.9-147.8) (118.0-187.6) (−0.5-178.5)  
  1. P-value calculated using one-way ANOVA.