Table 1.
Selected characteristics of participants in the first (2015–2016) and second (2019–2021) waves of the Brazilian Longitudinal Study of Ageing (ELSI-Brazil)
| First wave (n = 9412) |
Second wave (n = 9949) |
|||
|---|---|---|---|---|
| Characteristics | Mean or % | 95% CI | Mean or % | 95% CI |
| Mean age (years) | 62.9 | 62.1–63.8 | 63.3 | 62.7–64.0 |
| Female sex | 54.0 | 51.0–56.9 | 54.4 | 52.3–56.5 |
| Urban residence | 84.7 | 78.4–88.8 | 84.4 | 78.5–88.9 |
| Geographic region | ||||
| North | 5.6 | 2.3–12.8 | 6.7 | 2.8–15.1 |
| Northeast | 24.1 | 15.9–34.8 | 28.2 | 18.7–40.1 |
| Centre-west | 6.6 | 3.0–13.8 | 8.6 | 4.1–17.3 |
| Southeast | 47.2 | 35.6–59.1 | 43.2 | 31.8–55.4 |
| South | 16.6 | 8.8–29.1 | 13.3 | 6.9–24.1 |
| Schooling (years) | ||||
| <8 | 64.6 | 61.3–67.4 | 63.5 | 59.8–67.0 |
| 8–10 | 11.9 | 10.6–13.3 | 13.0 | 11.7–14.4 |
| ≥11 | 23.8 | 21.7–26.0 | 23.6 | 21.0–26.4 |
| Prior medical diagnoses | ||||
| Diabetes | 15.8 | 14.6–17.1 | 17.7 | 16.0–19.5 |
| Stroke | 5.3 | 4.7–6.0 | 3.9 | 3.1–4.8 |
| Asthma | 4.9 | 4.2–5.7 | 3.0 | 2.6–3.6 |
| Cancer | 5.3 | 4.6–6.0 | 4.5 | 3.8–5.4 |
| Arthritis | 21.0 | 19.4–22.7 | 18.6 | 16.7–20.6 |
| Blood pressure and anthropometric measurements | ||||
| Mean systolic blood pressure (mm Hg) | 135.8 | 134.8–136.9 | 130.4 | 129.5–131.3 |
| Mean diastolic blood pressure (mm Hg) | 78.6 | 78.0–79.3 | 82.0 | 81.4–82.6 |
| Mean body mass index as weight (kg)/height (m)2 | 27.8 | 27.6–28.0 | 27.9 | 27.7–28.2 |
| Mean waist circumference (cm) | 93.5 | 92.9–94.1 | 95.8 | 95.0–96.6 |
All results are percentages, except when specified. All estimates considered the complex sample design and survey weights.