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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.