Table 6 Association between dietary nitrate (NO₃⁻) and nitrite (NO₂⁻) intake from plant and animal sources and the odds of metabolic syndrome (MetS) and its components.

From: The association between dietary intakes of nitrate and nitrite and odds of metabolic syndrome and its component in adults

Variables

NO 3 –  (mg/day)

NO 2 –(mg/day)

Models

Animal

Plant

Animal

Plant

OR

95%CI

P

OR

95%CI

P value

OR

95%CI

P value

OR

95%CI

P value

MetS +

Crude

1.07

0.84–1.36.84.36

0.56

0.92

0.72–1.17.72.17

0.50

1.08

0.85–1.37.85.37

0.51

0.91

0.71–1.16.71.16

0.45

Adjust

1.13

0.86–1.48.86.48

0.37

0.89

0.66–1.19.66.19

0.44

1.09

0.82–1.44.82.44

0.54

0.85

0.63–1.14.63.14

0.28

Hypertention

Crude

1.39

1.03–1.88.03.88

0.03

0.88

0.65–1.18.65.18

0.05

1.39

1.03–1.88.03.88

0.03

0.97

0.72–1.30.72.30

0.08

Adjust

1.53

1.09–2.15.09.15

0.01

0.87

0.61–1.24.61.24

0.04

1.59

1.12–2.25.12.25

0.02

0.92

0.64–1.33.64.33

0.04

Hyperglycemia

Crude

1.33

1.03–1.72.03.72

0.02

0.96

0.75–1.24.75.24

0.79

1.20

0.93–1.55.93.55

0.15

0.93

0.72–1.20.72.20

0.60

Adjust

1.38

1.04–1.84.04.84

0.02

0.88

0.64–1.19.64.19

0.42

1.21

0.90–1.63.90.63

0.01

0.97

0.71–1.33.71.33

0.87

Abdominal obesity

Crude

0.92

0.79–1.07.79.07

0.30

0.89

0.76–1.03.76.03

0.13

1.07

0.92–1.24.92.24

0.34

0.93

0.80–1.08.80.08

0.38

Adjust

1.04

0.83–1.20.83.20

0.96

0.93

0.76–1.14.76.14

0.01

1.07

0.83–1.21.83.21

0.93

0.96

0.79–1.17.79.17

0.12

Low HDL

Crude

0.93

0.81–1.07.81.07

0.35

0.93

0.81–1.07.81.07

0.07

1.02

0.88–1.17.88.17

0.77

0.89

0.77–1.02.77.02

0.11

Adjust

1.07

0.91–1.28.91.28

0.38

0.90

0.75–1.08.75.08

0.06

1.02

0.85–1.21.85.21

0.82

0.79

0.65–0.95.65.95

0.01

Hypertriglyceridemia

Crude

1.10

0.93–1.29.93.29

0.25

1.02

0.87–1.20.87.20

0.75

1.01

0.86–1.19.86.19

0.85

0.97

0.83–1.15.83.15

0.78

Adjust

1.06

0.89–1.28.89.28

0.47

0.95

0.78–1.16.78.16

0.63

1.09

0.90–1.31.90.31

0.37

0.89

0.73–1.09.73.09

0.26

  1. HDL high-density lipoprotein, MetS metabolic syndrome. MetS-, normal values of TG, FBS, WC, BP and HDL and < median were the reference group. P-values ≤ 0.05 were considered significant. P value <0.05 and marginal is bolded. The adjusted model: the analysis was adjusted for age, energy intake, physical activity,BMI,smoking,sex, education,marriage status,SES,use of multivitamin and intake vitamin C. Median intake of Nitrate from animal and plant was 22.28 and 595.18 mg/day, respectively. The median intake of Nitrite from animal and plant sources was 6.27 and 5.62 mg/day, respectively.
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