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Table 2 Influence of sleep quality by PSQI on IL-6, TNF-α and lymphocytes stratified by shift and daytime worker.

From: The impact of shift work induced chronic circadian disruption on IL-6 and TNF-α immune responses

Sleep quality

Component

Collective

Mean

SD

p

PSQI < 6

IL-6

Daytime workers

Shift workers

2.31

2.67

1.59

3.31

0.357

 

TNF-α

Daytime workers

Shift workers

5.51

5.55

3.01

4.02

0.945

 

Lymphocytes

Daytime workers

Shift workers

33.98

33.12

7.60

7.44

0.453

PSQI ≥ 6

IL-6

Daytime workers

Shift workers

2.06

2.72

0.31

4.24

0.362

 

TNF-α

Daytime workers

Shift workers

5.54

5.73

2.06

6.07

0.853

 

Lymphocytes

Daytime workers

Shift workers

32.85

33.17

8.26

7.73

0.834