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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.