Table 2.
Multinomial logistic regression on factors associated with generalised underweight, overweight and obesity in women†
| 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 | 0.85 (0.55 to 1.31) | 1.16 (0.83 to 1.61) | 1.67 (1.10 to 2.54)* | 0.79 (0.52 to 1.19) | 1.37 (0.93 to 2.01) | 2.25 (1.31 to 3.85)** |
| 45–54 | 0.92 (0.50 to 1.71) | 1.42 (1.01 to 1.99)* | 1.65 (1.00 to 2.73) | 0.88 (0.48 to 1.62) | 1.98 (1.33 to 2.96)*** | 2.66 (1.43 to 4.94)** |
| 55–64 | 2.09 (1.04 to 4.18)* | 1.82 (1.03 to 3.24)* | 4.04 (2.20 to 7.39) | 2.30 (1.10 to 4.80)* | 2.81 (1.58 to 4.99)*** | 4.90 (2.44 to 9.82)*** |
| Ethnicity | ||||||
| Mandinka | Reference | Reference | Reference | Reference | Reference | Reference |
| Wollof | 0.64 (0.32 to 1.25) | 1.31 (0.80 to 2.16) | 2.07 (1.19 to 3.61)** | 0.69 (0.36 to 1.29) | 1.19 (0.75 to 1.87) | 1.50 (0.90 to 2.48) |
| Fula | 1.03 (0.60 to 1.78) | 1.43 (1.01 to 2.00)* | 1.51 (0.94 to 2.41) | 0.87 (0.47 to 1.58) | 1.69 (1.20 to 2.38)** | 1.78 (1.09 to 2.92)* |
| Jola | 1.15 (0.64 to 2.08) | 1.14 (0.72 to 1.82) | 1.68 (0.92 to 3.07) | 1.01 (0.57 to 1.77) | 0.98 (0.64 to 1.51) | 1.10 (0.66 to 1.84) |
| Others | 0.63 (0.31 to 1.27) | 1.54 (0.96 to 2.47) | 1.57 (0.84 to 2.92) | 0.34 (0.14 to 0.80)** | 1.33 (0.78 to 2.28) | 1.21 (0.62 to 2.36) |
| Years spent in school | ||||||
| ≤6 | Reference | Reference | Reference | Reference | Reference | Reference |
| 7–12 | 0.10 (0.58 to 1.69) | 1.93 (1.31 to 2.85)*** | 2.93 (1.85 to 4.64)*** | 1.12 (0.63 to 1.99) | 1.31 (0.87 to 1.95) | 1.67 (1.00 to 2.77)* |
| >12 | 1.37 (0.46 to 4.14) | 3.09 (1.53 to 6.22)** | 3.47 (1.37 to 8.89)** | 1.93 (0.52 to 7.18) | 2.40 (1.10 to 5.20)* | 2.58 (1.05 to 6.36)* |
| Residence (rurality) | ||||||
| Rural | Reference | Reference | Reference | Reference | Reference | Reference |
| Semiurban | 0.47 (0.29 to 0.75)** | 2.52 (1.75 to 3.63)*** | 2.75 (1.71 to 4.43)** | 0.54 (0.31 to 0.95)* | 2.31 (1.46 to 3.65)*** | 2.25 (1.22 to 4.14)** |
| Urban | 0.68 (0.41 to 1.13) | 3.03 (2.06 to 4.46)*** | 5.06 (3.24 to 7.90)*** | 0.84 (0.46 to 1.55) | 3.05 (1.86 to 5.01)*** | 4.71 (2.72 to 8.15)*** |
| Servings of fruits and vegetables | ||||||
| ≥5/day | Reference | Reference | Reference | Reference | Reference | Reference |
| <5/day | 0.71 (0.41 to 1.24) | 1.03 (0.73 to 1.46) | 0.95 (0.62 to 1.46) | 0.65 (0.37 to 1.15) | 1.10 (0.73 to 1.66) | 1.13 (0.74 to 1.75) |
| Physical activity | ||||||
| ≥600 METS/week | Reference | Reference | Reference | Reference | Reference | Reference |
| <600 METS/week | 0.81 (0.42 to 1.54) | 1.32 (0.83 to 2.11) | 1.67 (1.08 to 2.58)* | 1.19 (0.58 to 2.44) | 1.07 (0.63 to 1.82) | 1.02 (0.55 to 1.91) |
*P<0.05, **P≤0.01, *** P≤0.001.
†Data 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 all the variables shown in the table.
BMI, body mass index; METS, metabolic equivalents.