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Table 2 Cognition measures: composite (Tput) and component scores on baseline and intervention days.

From: Physician nutrition and cognition during work hours: effect of a nutrition based intervention

  Baseline Intervention Difference p-value a
Simple reaction
time test
    
Mean Tput b score (SE) 209 (6) 220 (6) 11 (4) 0.01
Mean reaction time in msec (SE) 293 (9) 279 (9) -15 (7) 0.03
Complex reaction
time test
    
Mean Tput b score (SE) 85 (3) 92 (4) 7 (2) < 0.001
Mean reaction time in msec (SE) 629 (18) 606 (21) -23 (8) 0.002
Mean % correct (SE) 97.5 (0.4) 98.2 (0.3) 0.7 (0.3) 0.01
Mean lapses c (SE) 5.5 (0.9) 4.3 (1.0) -1.2 (0.6) 0.05
Mean impulses d (SE) 6.1 (0.8) 4.5 (0.9) -1.6 (0.4) < 0.001
  1. a p-value for difference (Intervention day - Baseline day)
  2. b Tput is a composite score comprising reaction time and accuracy. Higher Tput scores indicate better performance.
  3. c Lapses: Subject did not respond to the stimulus.
  4. d Impulses: Subject anticipated and acted before the prompt.