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Table 5 Cardio-metabolic factors and biomarkers by levels of sleep quality

From: Sleep quality in middle-aged and elderly Chinese: distribution, associated factors and associations with cardio-metabolic risk factors

Variable, mean (SD)

Total

well

common

poor

p-value

Resistin

11.47(9.37)

11.26 (8.92)

11.24 (8.92)

12.57 (11.34)

0.0428*

PAI-1

14.74(18.17)

14.35 (18.71)

15.44 (17.56)

14.71 (17.50)

0.0011*

RBP4

40.11(11.74)

39.78 (11.59)

40.48 (11.58)

40.47 (12.48)

0.2924

Adiponectin

16.48(11.62)

16.47 (11.58)

16.06 (11.41)

17.29 (12.11)

0.1914

IL-6

1.55(2.78)

1.46 (2.13)

1.68 (3.63)

1.61 (2.84)

0.4680

CRP

1.58(4.30)

1.42 (2.29)

1.72 (5.54)

1.82 (6.24)

0.9505

Insulin

15.46(9.50)

15.00 (9.37)

16.07 (8.86)

15.81 (10.93)

<0.0001*

HOMA-IR

4.10(3.36)

3.95 (3.36)

4.32 (3.25)

4.14 (3.55)

<0.0001*

HOMA2-IR

0.31(0.22)

0.29 (0.19)

0.32 (0.27)

0.31 (0.22)

<0.0001*

SBP

140.11(22.49)

139.5 (22.06)

140.7 (22.94)

141.1 (22.99)

0.2338

DBP

80.16(10.79)

80.18 (10.74)

80.15 (10.82)

80.11 (10.92)

0.9892

HDL

1.28(0.33)

1.27 (0.33)

1.27 (0.33)

1.30 (0.36)

0.5415

LDL

3.26(0.97)

3.19 (0.94)

3.36 (0.99)

3.30 (1.01)

<0.0001*

TCH

4.70(0.98)

4.63 (0.97)

4.79 (0.97)

4.75 (1.02)

0.0001*

TG

1.39(1.07)

1.36 (1.07)

1.44 (1.12)

1.39 (0.96)

0.0490*

  1. Abbreviations: PAI-1, plasminogen activator inhibitor-1; RBP4, retinol binding protein 4; IL-6, interleukin-6; IL6, interleukin-6; CRP, C-reactive protein; HOMA-IR, homeostasis model assessment of insulin resistance (fasting glucose (mmol/L) × fasting insulin (μU/ml)/22.5); SBP, systolic blood pressure; DBP, diastolic blood pressure; HDL, high-density lipoprotein; LDL, low-density lipoprotein; TCH, total cholesterol; TG, triglycerides; SD, standard deviation;