Participants’ demographic characteristics
| Database | # Women | % Women | # Men | % Men | Age* |
| GO fit-Ingesport operated leisure centre (GO fit Observatory) | 1898 | 52.3 | 1729 | 47.7 | 42.67±12.05 |
| Spanish general population (Special Eurobarometer 472) | 555 | 55.4 | 447 | 44.6 | 51.35±18.20 |
*Age: expressed as mean±SD