Table 1.
Multinomial logistic regression on factors associated with being underweight, overweight or obese in men†
| Variable | Model 1 (age-adjusted) | Model 2 (fully adjusted) | ||||
| Underweight‡ | Overweight‡ | Obese‡ | Underweight‡ | Overweight‡ | Obese‡ | |
| RRR (95% CI)§ | RRR (95% CI)§ | RRR (95% CI)§ | ARRR (95% CI)§ | ARRR (95% CI)§ | ARRR (95% CI)§ | |
| Age group | ||||||
| 25–34 | Reference | Reference | Reference | Reference | Reference | Reference |
| 35–44 | 0.69 (0.40 to 1.17) | 1.61 (1.22 to 2.12)*** | 0.95 (0.56 to 1.62) | 0.75 (0.42 to 1.36) | 2.00 (1.38 to 2.90)*** | 1.58 (0.75 to 3.33) |
| 45–54 | 0.97 (0.52 to 1.81) | 1.63 (1.06 to 2.52)* | 2.06 (1.22 to 3.48)** | 1.31 (0.66 to 2.59) | 2.21 (1.33 to 3.67)** | 3.42 (1.83 to 6.37)*** |
| 55–64 | 0.67 (0.37 to 1.21) | 0.96 (0.59 to 1.56) | 1.21 (0.56 to 2.57) | 0.81 (0.43 to 1.52) | 1.13 (0.63 to 2.03) | 2.88 (1.22 to 6.80)** |
| Ethnicity | ||||||
| Mandinka | Reference | Reference | Reference | Reference | Reference | Reference |
| Wollof | 1.15 (0.65 to 2.03) | 1.48 (0.93 to 2.35) | 1.85 (1.06 to 3.23)* | 1.17 (0.66 to 2.08) | 1.34 (0.83 to 2.18) | 1.62 (1.04 to 2.53)* |
| Fula | 0.71 (0.41 to 1.24) | 0.93 (0.64 to 1.35) | 1.09 (0.49 to 2.39) | 0.46 (0.24 to 0.88)* | 1.15 (0.77 to 1.72) | 0.80 (0.34 to 1.87) |
| Jola | 0.67 (0.38 to 1.18) | 0.79 (0.45 to 1.39) | 1.05 (0.45 to 2.45) | 0.66 (0.39 to 1.13) | 1.03 (0.56 to 1.89) | 1.29 (0.56 to 2.94) |
| Others | 0.44 (0.19 to 1.04) | 0.91 (0.51 to 1.65) | 2.56 (1.26 to 5.20)** | 0.37 (0.14 to 0.96)* | 0.92 (0.45 to 1.88) | 1.97 (0.71 to 5.43) |
| Years spent in school | ||||||
| ≤6 | Reference | Reference | Reference | Reference | Reference | Reference |
| 7–12 | 1.19 (0.76 to 1.87) | 1.56 (1.06 to 2.31)* | 2.54 (1.37 to 4.72)** | 1.26 (0.75 to 2.11) | 1.28 (0.81 to 2.01) | 1.24 (0.56 to 2.75) |
| >12 | 0.48 (0.23 to 1.00) | 1.82 (1.12 to 2.96)** | 3.19 (1.45 to 7.02)** | 0.50 (0.23 to 1.09) | 1.66 (1.02 to 2.71)* | 2.29 (1.16 to 4.53)** |
| Residence (rurality) | ||||||
| Rural | Reference | Reference | Reference | Reference | Reference | Reference |
| Semiurban | 0.97 (0.37 to 2.53) | 2.05 (0.95 to 4.43) | 4.14 (1.53 to 11.19)** | 0.70 (0.29 to 2.11) | 1.62 (0.70 to 3.80) | 1.58 (0.45 to 5.56) |
| Urban | 1.18 (0.71 to 1.96) | 2.52 (1.49 to 4.27)*** | 5.03 (2.20 to 11.47)*** | 1.35 (0.81 to 2.23) | 2.76 (1.52 to 5.01)*** | 5.83 (2.35 to 14.50)*** |
| Smoking | ||||||
| Never smokers | Reference | Reference | Reference | Reference | Reference | Reference |
| Current smokers | 1.71 (1.18 to 2.48)** | 0.53 (0.38 to 0.74)*** | 0.52 (0.32 to 0.84)*** | 1.48 (0.97 to 2.27) | 0.52 (0.36 to 0.74)*** | 0.61 (0.34 to 1.11) |
| Ex-smokers | 1.71 (0.97 to 3.02) | 0.81 (0.47 to 1.40) | 0.58 (0.26 to 1.32) | 1.86 (1.07 to 3.24)* | 0.75 (0.38 to 1.48) | 0.58 (0.21 to 1.63) |
| Servings of fruit and vegetables | ||||||
| ≥5/day | Reference | Reference | Reference | Reference | Reference | Reference |
| <5/day | 1.31 (0.80 to 2.14) | 1.38 (0.86 to 2.22) | 1.50 (0.74 to 3.06) | 1.38 (0.79 to 2.38) | 1.74 (1.06 to 2.87)* | 2.75 (1.12 to 6.75)* |
| Physical activity | ||||||
| ≥600 METS/week | Reference | Reference | Reference | Reference | Reference | Reference |
| <600 METS/week | 0.58 (0.25 to 1.36) | 1.46 (0.86 to 2.48) | 3.02 (1.78 to 5.13)*** | 0.92 (0.31 to 2.69) | 1.20 (0.53 to 2.73) | 2.23 (0.87 to 5.70) |
*P<0.05, **P≤0.01, ***P≤0.001.
†Data shown have been weighted for non-response and the analysis took into account the complex survey design.
‡BMI is categorised into underweight (BMI <18.5 kg/m2), normal/desirable weight (18.5–24.9 kg/m2), overweight (25.0–29.9 kg/m2) and obese (BMI ≥30 kg/m2). Those with a desirable weight (normal) used as reference.
§Relative risk ratio (RRR) adjusted for age (except for age group as the independent variable). Fully adjusted relative risk ratio (ARRR): estimates in the fully adjusted models were mutually adjusted for the variables shown in the table.
BMI, body mass index; METS, metabolic equivalents.