Table 3.
Incidence of obesity (BMI ≥ 30 kg/m2) and association with sociodemographic aspects among adult women registered in SISVAN (n = 30.354), Brazil, 2015–2019.
| Characteristica | n (%)a | New cases b | Relative risk RRc | Confidence interval (CI95%) | |
|---|---|---|---|---|---|
| Count b | Incidence ratio (%) | ||||
| Region | |||||
| Northeast | 12,674 (41.8) | 1.905 | 15,0 | 1 | |
| Southeast | 7,802 (25.7) | 1.188 | 15,2 | 1.01 | (0.95; 1.08) |
| North | 6,022 (19.8) | 805 | 13,4 | 0.89 | (0.82; 0.96) |
| Center-West | 2,459 (8.1) | 404 | 16,4 | 1.09 | (0.99; 1.21) |
| South | 1,397 (4.6) | 245 | 17,5 | 1.17 | (1.03; 1.32) |
| Age group in 2015 (years) | |||||
| 20–29 | 13,348 (44.0) | 1.994 | 14,9 | 1 | |
| 30–39 | 9,624 (31.7) | 1.347 | 14,0 | 0.94 | (0.88; 1.00) |
| 40–49 | 5,053 (16.7) | 968 | 19,2 | 1.28 | (1.20; 1.37) |
| 50–59 | 2,329 (7.7) | 238 | 10,2 | 0.68 | (0.60; 0.78) |
| Race or skin color | |||||
| White | 6,454 (21.3) | 978 | 15,2 | 1 | |
| Mixed-race | 13,399 (44.1) | 2.120 | 15,8 | 1.04 | (0.97; 1.12) |
| Black | 1,932 (6.4) | 295 | 15,3 | 1.01 | (0.89; 1.14) |
| Asian | 3,170 (10.4) | 417 | 13,2 | 0.87 | (0.78; 0.97) |
| Indigenous | 230 (0.8) | 24 | 10,4 | 0.69 | (0.47; 1.01) |
| No information | 5,169 (17.0) | 713 | 13,8 | 0.91 | (0.83; 1.00) |
aColumn percentage, consisting of the absolute and relative frequency of each category.
bCount of new cases and incidence proportion, with relative frequency of new cases given the total number of individuals at risk in each category.
cRelative risks (RR) and 95% confidence intervals (95% CI) obtained by simple Poisson regression with robust variance estimator, with new cases of obesity as the dependent variable between 2015 and 2019. Values in bold were statistically significant.
Source: created by the authors.