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Table 4 Associations between bioelectrical variables, lifestyle factors, and potential confounders, by sex. Multiple regression coefficients with 95% confidence intervals (95% CI) and p-values. In bold are p-values under 0.05

From: Associations between hydration status, body composition, sociodemographic and lifestyle factors in the general population: a cross-sectional study

Variable

Coefficient

95% CI

p-value

Coefficient

95% CI

p-value

R/H

Women

Men

Diet quality index:

 Unhealthy, baseline

 Medium

0.03

-0.04, 0.09

 > 0.05

0.02

-0.04, 0.07

 > 0.05

 Healthy

0.03

-0.05, 0.11

 > 0.05

0.09

-0.03, 0.21

 > 0.05

Physical activity:

 Low, baseline

 Medium

0.07

-0.02, 0.16

 > 0.05

0.02

-0.07, 0.10

 > 0.05

 High

0.02

-0.08, 0.11

 > 0.05

0.01

-0.07, 0.09

 > 0.05

BMI

-0.16

-0.41, 0.09

 > 0.05

-0.04

-0.25, 0.17

 > 0.05

Age quartiles:

 Youngest, baseline

 Second

0.01

-0.07, 0.08

 > 0.05

0.01

-0.07, 0.08

 > 0.05

 Third

0.07

-0.01, 0.15

 > 0.05

0.02

-0.06, 0.10

 > 0.05

 Oldest

0.11

0.02, 0.20

 < 0.05

0.09

0.01, 0.17

 < 0.05

Education:

 Mandatory, baseline

 Higher

-0.02

-0.08, 0.04

 > 0.05

0.02

-0.03, 0.08

 > 0.05

Xc/H

Diet quality index:

 Unhealthy, baseline

 Medium

-0.06

-1.89, 1.76

 > 0.05

-0.01

-1.56, 1.53

 > 0.05

 Healthy

-1.21

-3.52, 1.11

 > 0.05

2.11

-1.31, 5.53

 > 0.05

Physical activity:

 Low, baseline

 Medium

1.28

-1.34, 3.89

 > 0.05

1.78

-0.67, 4.23

 > 0.05

 High

1.70

-1.05, 4.44

 > 0.05

2.91

0.54, 5.28

 < 0.05

BMI

-8.49

-15.61, -1.38

 < 0.05

-1.78

-7.87, 4.30

 > 0.05

Age quartiles:

 Youngest, baseline

 Second

-2.41

-4.50, -0.32

 < 0.05

-4.00

-6.20, -1.80

 < 0.05

 Third

-3.65

-6.00, -1.31

 < .0.05

-6.18

-8.43, -3.94

 < 0.05

 Oldest

-6.10

-8.69, -3.51

 < 0.05

-8.88

-11.07, -6.68

 < 0.05

Education:

 Mandatory, baseline

 Higher

-1.22

-2.91, 0.47

 > 0.05

0.39

-1.20, 1.96

 > 0.05

PA

Diet quality index:

 Unhealthy, baseline

 Medium

-0.12

-0.32, 0.08

 > 0.05

-0.07

-0.24, 0.11

 > 0.05

 Healthy

-0.19

-0.44, 0.06

 > 0.05

-0.03

-0.42, 0.37

 > 0.05

Physical activity:

 Low, baseline

 Medium

0.17

-0.11, 0.46

 > 0.05

0.50

0.22, 0.78

 < 0.05

 High

0.39

0.09, 0.69

 < 0.05

0.84

0.57, 1.11

 < 0.05

BMI

0.82

0.05, 1.60

 < 0.05

2.32

1.61, 3.02

 < 0.05

Age quartiles:

 Youngest, baseline

 Second

-0.32

-0.54, -0.09

 < 0.05

-0.77

-1.03, -0.52

 < 0.05

 Third

-0.49

-0.74, -0.23

 < 0.05

-1.06

-1.32, -0.08

 < 0.05

 Oldest

-1.01

-1.29, -0.73

 < 0.05

-1.63

-1.88, -1.37

 < 0.05

Education:

 Mandatory, baseline

 Higher

-0.18

-0.36, 0.00

 > 0.05

-0.11

-0.29, 0.07

 > 0.05

  1. R/H Resistance per height, Xc/H Reactance per height, PA Phase Angle, BMI Body Mass Index