Table 1.
Baseline characteristics of participants from the Portuguese National Health Interview Surveys of 2005/2006 and 2014
| 2005/2006 | 2014 | Total | ||||
|---|---|---|---|---|---|---|
| Variable | n | % | n | % | n | % |
| Sex | ||||||
| Female | 14 908 | 53·0 | 8475 | 56·0 | 23 383 | 54·0 |
| Male | 13 236 | 47·0 | 6654 | 44·0 | 19 890 | 46·0 |
| Age (years) | ||||||
| 25–39 | 7353 | 26·1 | 3354 | 22·2 | 10 707 | 24·7 |
| 40–64 | 13 886 | 49·3 | 7692 | 50·8 | 21 578 | 49·9 |
| 65–79 | 6905 | 24·5 | 4083 | 27·0 | 10 988 | 25·4 |
| Survey year | 28 144 | 65·0 | 15 129 | 35·0 | 43 273 | 100·0 |
| Educational level | ||||||
| No education/pre-primary education | 19 399 | 69·0 | 7911 | 53·3 | 27 310 | 52·3 |
| Primary education/secondary education | 5918 | 21·0 | 4584 | 30·3 | 10 502 | 24·3 |
| Tertiary education | 2815 | 10·0 | 2634 | 17·4 | 2634 | 12·6 |