Sex
| | | 0.4875 | | |
Male | 926 | 9.53 (9.46 to 9.61) | | 46 | 1.0 |
Female | 996 | 9.50 (9.43 to 9.57) | | 58 | 1.29 (0.88 to 1.90) |
Initial age in 1989
(y)
| | | 0.0109 | | |
15–50 | 1496 | 9.55 (9.50 to 9.61) | | 30 | 1.0 |
>50 | 482 | 9.40 (9.30 to 9.50) | | 92 | 10.30 (6.82 to 15.55) |
Initial level of occupational training
| | | <0.0001 | | |
University level | 166 | 9.89 (9.72 to 10.06) | | 1 | 1.0 |
Below university level | 1170 | 9.54 (9.48 to 9.60) | | 73 | 10.35 (1.44 to 74.44) |
None | 591 | 9.40 (9.31 to 9.49) | | 31 | 7.97 (1.09 to 58.36) |
Initial health
| | | <0.0001 | | |
No illness | 1398 | 9.61 (9.55 to 9.67) | | 53 | 1.0 |
One illness or several illnesses with mild or moderate functional limitation | 468 | 9.53 (9.43 to 9.62) | | 45 | 3.60 (2.39 to 5.31) |
One illness or several illnesses with severe or very severe functional limitation | 112 | 8.66 (8.45 to 8.86) | | 24 | 7.99 (4.93 to 12.96) |
Initial level of engagement in physical exercise during previous month
| | | <0.0001 | | |
4 times or more | 1005 | 9.67 (9.60 to 9.74) | | 39 | 1.0 |
2–3 times | 443 | 9.46 (9.36 to 9.56) | | 23 | 1.29 (0.77 to 2.17) |
Once | 142 | 9.42 (9.24 to 9.60) | | 11 | 1.93 (0.98 to 3.74) |
None | 358 | 9.21 (9.15 to 9.33) | | 34 | 2.24 (1.41 to 3.55) |
Initial consumption of alcohol until onset of drunkenness
| | | <0.0001 | | |
Never | 714 | 9.61 (9.53 to 9.69) | | 55 | 1.0 |
Less than a couple of times a month | 923 | 9.52 (9.45 to 9.60) | | 35 | 0.47 (0.31 to 0.72) |
A couple of times a month | 248 | 9.41 (9.27 to 9.55) | | 10 | 0.45 (0.23 to 0.89) |
Once a week | 68 | 9.03 (8.77 to 9.30) | | 5 | 0.77 (0.31 to 1.92) |
A couple of times a week | 21 | 8.71 (8.23 to 9.19) | | 2 | 0.84 (0.21 to 3.47) |