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Table 3 Associated factors of metabolic syndrome in multivariate logistic regression analysis

From: Metabolic syndrome among a middle-aged population in the Red River Delta region of Vietnam

Variable

Odds ratio (95%CI)

P

Residence

  

   Rural

1.0

 

   Urban

2.46 (1.61–3.75)

< 0.0001

Gender

  

   Men

1.0

 

   Women

0.68 (0.43–1.09)

0.111

Age (year)

1.07 (1.05–1.09)

< 0.0001

Body mass index (kg/m2)

1.31 (1.25–1.37)

< 0.0001

Marital status

  

   Married

1.0

 

   Never

2.14 (1.06–4.31)

0.034

   Widowed

0.96 (0.60–1.53)

0.868

   Others

1.23 (0.49–3.14)

0.659

Education level

  

   Elementary

1.0

 

   Intermediate

0.71 (0.49–1.04)

0.075

   Secondary

0.60 (0.36–1.02)

0.058

   Post–secondary

0.83 (0.50–1.39)

0.487

Heavy occupation

  

   Yes

1.0

 

   No

0.95 (0.67–1.34

0.759

Income level

  

   < 25 percentiles

1.0

 

   25– < 50 percentiles

1.02 (0.73–1.42)

0.925

   50– < 75 percentiles

1.04 (0.74–1.46)

0.836

   ≥75 percentiles

0.91 (0.64–1.29)

0.598

Alcohol consumption

  

   None

1.0

 

   <1 drink/mo

0.67 (0.38–1.16)

0.151

   ≥ 1 drink/mo to < 1 drink/wk

1.18 (0.70–1.98)

0.544

   1 drink/wk to ≤ 1 drink/d

0.85 (0.52–1.40)

0.532

   ≥ 2 drink/d

1.29 (0.77–2.17)

0.338

Smoking

  

   None

1.0

 

   Current smoker

0.67 (0.38–1.13)

0.131

   Ex–smoker

1.23 (0.75–2.04)

0.416

Watching TV/day

  

   ≤ 3 hours

1.0

 

   > 3 hours

1.31 (0.79–2.16)

0.299

Sitting time/day

  

   ≤ 4 hours

1.0

 

   > 4 hours

0.89 (0.69–1.14)

0.342

Sleeping time/day

  

   6-7 h

1.0

 

   <6 h

1.01 (0.74–1.40)

0.939

   ≥8 h

1.03 (0.77–1.37)

0.870

Siesta time/day (per 15 min)

1.08 (1.02–1.15)

0.015

  1. Educational level was categorized in four groups, by number of years of schooling: elementary level (≤5 years), intermediate level (6–9 years), secondary level (10–12 years), and post–secondary level (>12 years). Occupation was categorized as heavy occupation (farmer and manual worker) or none heavy occupation (office clerks, teacher, retired worker, and house worker). One drink was defined as a 50–ml cup of rice wine at about 30%.
  2. OR and P values were adjusted by all variables in the table.