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Table 4 Squared partial correlation coefficients

From: Cardiac autonomic activity and blood pressure among Nunavik Inuit adults exposed to environmental mercury: a cross-sectional study

HRV and BP parameters

Independent variables

Adjusted β

Partial R2 (%)

p-value

VLF (ms2) §

Mercury §

-0.06

0.43

0.38

 

WC

-0.02

10.17

<0.0001

 

HDL-cholesterol

-0.34

5.52

0.004

LF (ms2)§

Mercury §

-0.006

0.003

0.94

 

HOMA-IR

-0.22

2.66

0.0178

 

Age

-0.03

6.15

0.0069

HF (ms2)§

Mercury §

-0.01

0.01

0.88

 

HOMA-IR§

-0.19

1.80

0.0466

 

WC

-0.01

2.34

0.0102

 

Gender

0.39

4.17

0.0011

LF/HF §

Mercury §

0.01

0.001

0.97

 

Age

-0.05

6.32

0.0002

 

Gender

-1.19

11.05

<0.0001

NN (ms)

Mercury §

-5.75

0.12

0.61

 

Age

4.63

8.66

<0.00010

 

HOMA-IR§

-37.63

5.01

.0028

SDNN (ms)§

Mercury §

-0.056

1.25

0.10

 

HOMA-IR§

-0.12

7.95

0.0001

SDANN (ms)§

Mercury §

-0.086

1.86

0.026

rMSSD (ms)§

Mercury §

-0.03

0.29

0.395

 

HDL

-0.10

1.66

0.0488

 

WC

-0.01

3.69

0.0008

pNN50 (%) §

Mercury §

-0.09

0.28

0.43

 

HDL

-0.36

1.88

0.032

 

WC

-0.03

3.99

0.0006

CVRR (%) §

Mercury §

-0.057

1.66

0.056

SBP (mm Hg)

Mercury §

4.77

4.14

0.01

 

Selenium §

-6.45

2.92

< 0.0001

 

WC

0.29

7.03

0.0357

 

Age

0.59

11.27

< 0.0001

DBP (mm Hg)

Mercury §

1.99

1.57

0.087

 

Triglycerides §

4.76

6.68

< 0.0001

PP (mm Hg)

Mercury §

3.40

4.76

0.0036

 

WC

0.12

2.83

0.0083

 

Age

0.68

27.92

< 0.0001

  1. In this table, we present only the confounding factors that explain a significant proportion of the variance. § Log-transformed variables; HOMA-IR: Homeostasis model assessment; WC: Waist circumference.