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. 2010 Jul 5;5:18. doi: 10.1186/1745-6673-5-18

Table 1.

Influence of shift work and sleep quality by PSQI on IL-6, TNF-α and lymphocytes.

Component Collective Mean SD p
IL-6 Daytime workers
Shift workers
2.30
2.67
1.54
3.79
0.276
TNF-α Daytime workers
Shift workers
5.58
5.68
2.91
5.19
0.841
Lymphocytes Daytime workers
Shift workers
33.68
32.99
7.64
7.49
0.404

Component PSQI Mean SD p
IL-6 PSQI ≤ 6
PSQI ≥ 6
2.47
2.58
2.50
3.77
0.761
TNF-α PSQI ≤ 6
PSQI ≥ 6
5.53
5.68
3.49
5.41
0.759
Lymphocytes PSQI ≤ 6
PSQI ≥ 6
33.59
33.14
7.52
7.78
0.593