From: The impact of sleep deprivation and alcohol on driving: a comparative study
Outcome measure | Rested | Sleep deprived | Intoxicated | P value impact of coffee when sleep deprived | P value sleep deprived vs rested | P value intoxicated vs rested | |||
---|---|---|---|---|---|---|---|---|---|
Before coffee | After coffee | Before coffee | After coffee | Before coffee | After coffee | ||||
Mean LCT MDLT (SD) | 0.33 (0.06) | 0.40 (0.09) | 0.62 (0.33) | 0.71 (0.47) | 0.54 (0.17) | 0.55 (0.13) | 0.03 | < 0.0001 | < 0.0001 |
Mean braking reaction time (SD) | 1667 (276.5) | 1620 (294.5) | 2131 (665.9) | 2149 (790.2) | 1755 (325.5) | 1779 (368.5) | 0.58 | < 0.0001 | 0.03 |
Mean lane changing reaction time (SD) | 2785 (457.6) | 2737 (495.5) | 3580 (1371) | 3636 (1386) | 2928 (566.3) | 2917 (557.2) | 0.35 | < 0.0001 | 0.0058 |
Mean KSS (SD) | 3.53 (1.55) | 2.7 (1.26) | 7.87 (0.94) | 6.8 (1.35) | 4.47 (1.61) | 3.9 (1.56) | < 0.0001 | < 0.0001 | 0.02 |
Mean Ability (SD) | 4.7 (0.59) | 4.87 (0.35) | 2.53 (0.90) | 3.4 (0.97) | 2.83 (0.83) | 3.37 (0.76) | < 0.0001 | < 0.0001 | < 0.0001 |