Table 2

Shift work experience and cognitive performances (factorial scores) at baseline (unadjusted means)

Cognitive performance
N (3119)Global (M and SD)Memory (M and SD)Speed (M and SD)
Shift work experienceNever163556.0 (10.71)50.8 (10.61)78.5 (8.77)
Shift work (current or in past)148453.3 (10.60)48.5 (10.46)76.5 (9.05)
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Rotating shift work (current or in the past)1–10 years58355.4 (10.08)50.3 (10.33)78.1 (8.20)
>10 years53451.8 (10.49)47.0 (10.23)75.6 (8.84)
*********
Rotating shift work recencyCurrent56854.4 (10.44)49.2 (10.55)77.6 (8.08)
≤5 years17651.8 (10.42)47.0 (9.67)75.7 (9.91)
>5 years35053.3 (10.31)48.6 (10.43)76.1 (8.68)
*********
Shift work recencyCurrent38153.0 (10.35)48.0 (10.45)76.6 (8.29)
≤5 years41754.3 (10.45)49.2 (10.18)77.5 (8.86)
>5 years29553.5 (10.44)48.8 (10.62)76.2 (8.66)
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  • ***≤0.001. Statistical significances are from analysis of variances.