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. 2016 Dec 29;11(12):e0169027. doi: 10.1371/journal.pone.0169027

Table 2. Association of sociodemographic and lifestyle factors with prevalence of overweight, general and abdominal obesity in Spanish adults.

Logistic regression analysis.

Overweight Obesity Abdominal obesity
25≥BMI<30 kg/m2 BMI≥30 kg/m2 WHtR≥0.5
OR (95% CI) p OR (95% CI) p OR (95% CI) p
Sex
 Female 1 1 1
 Male 1.80 (1.44–2.24) 0.000 1.83 (1.41–2.38) 0.000 1.65 (1.36–2.02) 0.000
Age
 18–40 y 1 1 1
 41–65 y 2.30 (1.84–2.87) 0.000 3.89 (2.95–5.11) 0.000 4.32 (3.49–5.34) 0.000
Region
 South 1 1 1
 Central 0.90 (0.66–1.22) 0.485 1.06 (0.72–1.55) 0.766 1.01 (0.76–1.34) 0.944
 Atlantic 0.87 (0.62–1.22) 0.419 0.87 (0.57–1.33) 0.511 0.75 (0.55–1.02) 0.067
 Mediterranean 0.87 (0.66–1.16) 0.343 1.30 (0.93–1.83) 0.130 0.86 (0.67–1.12) 0.266
Habitats size a
 Rural 1 1 1
 Semi-urban 0.94 (0.73–1.22) 0.659 1.38 (1.00–1.90) 0.051 0.91 (0.72–1.15) 0.423
 City/town 0.75 (0.58–0.98) 0.037 1.13 (0.81–1.56) 0.466 0.87 (0.68–1.10) 0.241
Level of education
 Primary or less 1 1 1
 Secondary 0.60 (0.46–0.79) 0.000 0.43 (0.32–0.59) 0.000 0.42 (0.33–0.54) 0.000
 University 0.43 (0.32–0.59) 0.000 0.29 (0.20–0.43) 0.000 0.33 (0.25–0.45) 0.000
Family income
 0–1000 € 1 1 1
 1001–2000 € 0.78 (0.57–1.06) 0.111 0.70 (0.49–0.99) 0.046 0.66 (0.49–0.88) 0.004
 ≥2000 € 0.78 (0.55–1.11) 0.169 0.43 (0.27–0.67) 0.000 0.50 (0.36–0.69) 0.000
 No answer (%) 0.69 (0.49–0.97) 0.034 0.67 (0.46–0.99) 0.047 0.48 (0.35–0.65) 0.000
Immigrant population
 No 1 1 1
 Yes 0.96 (0.62–1.50) 0.858 0.98 (0.57–1.66) 0.932 1.09 (0.73–1.63) 0.667
Rate of unemployment
 No 1 1 1
 Yes 1.20 (0.92–1.57) 0.185 1.48 (1.09–2.02) 0.013 1.59 (1.24–2.05) 0.000
Smoking status
 Non smoker 1 1 1
 Smoker 0.99 (0.79–1.24) 0.943 0.84 (0.64–1.11) 0.215 1.01 (0.82–1.24) 0.913
Vigorous physical activity
 <75 min/wk 1 1 1
 75–149 min/wk 0.66 (0.43–1.00) 0.050 0.29 (0.15–0.55) 0.000 0.54 (0.37–0.79) 0.002
 150–299 min/wk 0.73 (0.52–1.04) 0.081 0.42 (0.26–0.67) 0.000 0.59 (0.43–0.80) 0.001
 ≥300 min/wk 0.90 (0.68–1.18) 0.433 0.37 (0.25–0.55) 0.000 0.59 (0.46–0.76) 0.000
Moderate-vigorous physical activity
 <150 min/wk 1 1 1
 150–300 min/wk 0.69 (0.48–1.01) 0.058 0.64 (0.42–0.97) 0.036 0.63 (0.45–0.87) 0.006
 ≥300 min/wk 0.94 (0.73–1.23) 0.670 0.56 (0.42–0.76) 0.000 0.74 (0.58–0.93) 0.011
Time watching TV
 Never or almost never 1 1 1
 Low frequency 0.90 (0.47–1.69) 0.734 1.12 (0.39–3.22) 0.830 1.12 (0.62–2.04) 0.700
 Frequently 1.14 (0.62–2.10) 0.677 2.01 (0.74–5.46) 0.170 1.50 (0.84–2.65) 0.168
 Quite often 1.32 (0.73–2.38) 0.352 3.29 (1.25–8.65) 0.016 1.93 (1.11–3.34) 0.020
 Very often 1.52 (0.83–2.78) 0.173 4.15 (1.56–10.99) 0.004 2.22 (1.26–3.89) 0.006
Sleep time
 <7 h/day 1 1 1
 7–8 h/day 0.81 (0.59–1.12) 0.202 0.56 (0.38–0.80) 0.002 0.53 (0.39–0.72) 0.000
 ≥8 h/day 0.69 (0.51–0.93) 0.016 0.49 (0.35–0.69) 0.000 0.45 (0.34–0.60) 0.000

BMI: Body mass index, WHtR: Waist to height ratio; OR: crude odds ratio. The reference category for overweight and obesity is BMI <25 kg/m2, and for abdominal obesity is WHtR <0.5.

a Habitat size: rural populations: 2,000–30,000; semi-urban: 30,000–200,000; urban population: over 200,000 inhabitants.