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Table 3 Univariate and multivariate analyses of risk factors for overweight vs. normal weight

From: Obesity epidemic has emerged among Nigerians

Characteristics N Univariate   Multivariate p-value
RR (95% CI) p-value RR (95% CI)
Age categories (years)    <0.0001   0.002
- <30 113 1.00   1.00  
- 30 – 39 206 1.23 (0.92, 1.66)   1.11 (0.81, 1.52)  
- 40 – 49 301 1.71 (1.31, 2.23)   1.45 (1.07, 1.97)  
- ≥ 50 156 1.58 (1.18, 2.10)   1.35 (0.98, 1.85)  
Sex    0.17   0.004
- Male 533 1.00   1.00  
- Female 241 1.11 (0.96, 1.27)   1.24 (1.08, 1.43)  
Marital status    <.0001   0.043
- Not married 193 1.00   1.00  
- Married 583 1.43 (1.18, 1.73)   1.24 (0.99, 1.54)  
Education    0.02   0.46
- Secondary (High school) 186 1.00    
- ≥ Tertiary (College) 582 1.32 (1.09, 1.59)   1.13 (0.92, 1.39)  
- None/Primary (Elementary) 8 1.59 (0.61, 3.47)   1.39 (0.30, 3.82)  
Occupation    0.007   0.68
- Skilled manual 323 1.00    
- Professional/executive 364 1.14 (0.99, 1.32)   1.00 (0.86, 1.16)  
- Unskilled manual 65 0.71 (0.51, 1.01)   0.84 (0.59, 1.18)  
- Self-employed 24 0.84 (0.52, 1.37)   0.79 (0.38, 1.64)  
Socio-economic status    0.0007   0.10
- Low 342 1.00   1.00  
- Middle 280 1.34 (1.14, 1.56)   1.18 (1.01, 1.39)  
- High 154 1.26 (1.04, 1.52)   1.15 (0.95, 1.39)  
Sugar sweetened beverages    0.60   
- < 1/month 126 1.00    
- ≤ 1/week 356 1.10 (0.90, 1.35)    
- 2 – 6/week 210 1.07 (0.86, 1.34)    
- ≥ 1/day 84 0.96 (0.72, 1.28)    
Physical activity    0.61   
- Low 466 1.00    
- Moderate 180 0.97 (0.82, 1.15)    
- High 130 1.91 (0.74, 1.11)    
Television (hours/week)    0.49   
- <6/week 350 1.00    
- 6 - 10/week 219 1.00 (0.85, 1.18)    
- 11 - 20/week 133 1.13 (0.94, 1.35)    
- > 20/week 74 0.94 (0.72, 1.22)