Table 2 Multivariable adjusted odds ratio (OR) and 95% confidence intervals (CI) of metabolic syndrome and its components by quartiles of dietary fiber intake

Increased WC

 Prevalence, n (%)

168 (8.5)

154 (7.8)

153 (7.7)

126 (6.4)

0.005

 Crude OR (95% CI)

1.0 (ref)

0.88 (0.68–1.15)

0.87 (0.67–1.14)

0.67 (0.51–0.88)

0.004

 Multivariable OR (95% CI)

1.0 (ref)

0.79 (0.55–1.13)

0.75 (0.52–1.07)

0.60 (0.41–0.88)

0.009

Elevated TG

 Prevalence, n (%)

176 (8.9)

159 (8.0)

144 (7.3)

111 (5.6)

< 0.001

 Crude OR (95% CI)

1.0 (ref)

0.86 (0.66–1.12)

0.75 (0.57–0.98)

0.53 (0.40–0.69)

< 0.001

 Multivariable OR (95% CI)

1.0 (ref)

1.01 (0.75–1.37)

0.82 (0.60–1.11)

0.69 (0.50–0.96)

0.012

Elevated BP

 Prevalence, n (%)

153 (7.7)

138 (7.0)

124 (6.3)

118 (5.9)

0.007

 Crude OR (95% CI)

1.0 (ref)

0.87 (0.66–1.14)

0.75 (0.57–0.99)

0.70 (0.53–0.93)

0.009

 Multivariable OR (95% CI)

1.0 (ref)

1.00 (0.74–1.36)

0.83 (0.61–1.14)

0.96 (0.70–1.32)

0.63

Elevated FBG

 Prevalence, n (%)

36 (1.8)

43 (2.2)

32 (1.6)

26 (1.3)

0.10

 Crude OR (95% CI)

1.0 (ref)

1.22 (0.77–1.93)

0.88 (0.54–1.45)

0.71 (0.42–1.19)

0.10

 Multivariable OR (95% CI)

1.0 (ref)

1.35 (0.83–2.20)

0.92 (0.54–1.55)

0.78 (0.44–1.37)

0.21

Reduced HDL-C

 Prevalence, n (%)

96 (4.8)

109 (5.5)

106 (5.3)

115 (5.8)

0.19

 Crude OR (95% CI)

1.0 (ref)

1.18 (0.87–1.61)

1.14 (0.83–1.55)

1.26 (0.93–1.71)

0.18

 Multivariable OR (95% CI)

1.0 (ref)

1.02 (0.74–1.40)

0.92 (0.67–1.27)

0.96 (0.70–1.33)

0.72

MetS

 Prevalence, n (%)

80 (4.0)

90 (4.5)

73 (3.7)

59 (3.0)

0.025

 Crude OR (95% CI)

1.0 (ref)

1.16 (0.83–1.61)

0.90 (0.64–1.27)

0.70 (0.49–1.01)

0.022

 Multivariable OR (95% CI)

1.0 (ref)

1.32 (0.90–1.92)

0.90 (0.61–1.33)

0.81 (0.53–1.24)

0.14