Table 4.
Multivariate analysis of the determinants of obesity in the Portuguese population, by gender
| Men | Women | |
|---|---|---|
| Survey year | ||
| 1995-6 | 1 (ref.) | 1 (ref.) |
| 1998-9 | 1.15 [1.07 - 1.23] | 1.18 [1.11 - 1.25] |
| 2005-6 | 1.51 [1.41 - 1.62] | 1.49 [1.40 - 1.59] |
| Educational level (%) | ||
| Primary | 1.79 [1.57 - 2.05] | 3.80 [3.25 - 4.43] |
| Secondary | 1.30 [1.13 - 1.50] | 1.76 [1.49 - 2.09] |
| University | 1 (ref.) | 1 (ref.) |
| Age group (%) | ||
| 18-24 | 1 (ref.) | 1 (ref.) |
| 25-34 | 2.43 [2.05 - 2.88] | 2.40 [1.98 - 2.91] |
| 35-44 | 4.11 [3.50 - 4.82] | 4.19 [3.49 - 5.03] |
| 45-54 | 5.30 [4.53 - 6.21] | 6.41 [5.35 - 7.68] |
| 55-64 | 5.67 [4.84 - 6.66] | 6.37 [5.31 - 7.63] |
| 65-74 | 4.75 [4.04 - 5.59] | 5.56 [4.63 - 6.68] |
| 75+ | 2.97 [2.48 - 3.56] | 3.78 [3.13 - 4.57] |
Statistical analysis by logistic regression. Results are expressed as Odds-ratio and [95% confidence interval]. The results for each variable are adjusted for the other two. Obesity was defined as a body mass index ≥30 kg/m2.