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Table 1 Characteristics of the study population by body-mass index categories

From: Obesity epidemic has emerged among Nigerians

  Overall % Body-mass index categories (kg/m2)
Characteristics   18.5 < 25 25 - < 30 ≥ 30.0
n = 377 n = 399 n = 265
Body-mass index (kg/m 2 )   22.5 ± 1.6 27.2 ± 1.4 33.8 ± 3.2
Age (years)   39.2 ± 10.3 42.6 ± 9.0 43.3 ± 7.1
Age categories (years), %     
- <30 11 19 10 2
- 30 – 39 28 31 22 32
- 40 – 49 40 32 46 43
- ≥ 50 21 18 22 23
Sex,%     
- Male 60 71 67 34
- Female 40 29 33 66
Religion, %     
- Christianity 80 78 80 82
- Islam 20 22 20 18
Marital Status, %     
- Married 77 69 81 82
- Not married 23 31 19 18
Education, %     
- None 0.4 0 1 0
- Primary (Elementary school) 0.6 1 1 0
- Secondary (High school) 22 29 19 15
- ≥ Tertiary (College) 77 70 79 85
Occupation, %     
- Self-employed 3 4 2 1
- Unskilled manual 7 11 6 3
- Skilled manual 40 43 40 36
- Professional/executive 50 42 52 60
Socio-economic status, %     
- Low 40 51 38 27
- Middle 40 31 41 52
- High 20 18 21 21
Sugar sweetened beverages, %     
- < 1/month 17 17 15 20
- ≤ 1/week 45 44 48 40
- 2 – 6/week 27 27 27 27
- ≥ 1/day 11 12 10 13
Mean calories from carbohydrates   985.7 ± 502.7 973.4 ± 497.8 862.8 ± 482.4
Physical activity, %     
- Low 61 59 61 65
- Moderate 22 23 23 20
- High 16 18 16 15
Television (hours/week), %     
- <6/week 45 46 44 46
- 6 - 10/week 28 29 28 26
- 11 - 20/week 17 15 19 18
- > 20/week 10 10 9 10