Table 1 Characteristics of the Vasaloppet study population
All | Skiers | Non-skiers | |
|---|---|---|---|
n = 395,369 | n = 197,685 | n = 197,684 | |
Characteristics 1989–2010 | Median (IQR) or n (%) | Median (IQR) or n (%) | Median (IQR) or n (%) |
Age at baseline, years | 36.0 (29.0–46.0) | 36.0 (29.0–46.0) | 36.0 (29.0–46.0) |
Women | 149,796 (38) | 74,897 (38) | 74,899 (38) |
Education | |||
Primary/elementary school (≤ 8 years) | 49,344 (13) | 14,538 (7.4) | 34,806 (18)*** |
Secondary school/high school (9–12 years) | 176,571 (45) | 76,635 (39) | 99,936 (51) |
Higher education/university (≥ 13 years) | 166,133 (42) | 106,147 (54) | 59,986 (31) |
Dementia diagnoses at follow-up | N events (incidence rate/1000 person-years) | ||
All-cause dementia | 542 (0.14) | 223 (0.11) | 319 (0.16) |
Vascular dementia | 112 (0.03) | 40 (0.02) | 72 (0.04)*** |
Alzheimer’s disease dementia | 181 (0.05) | 86 (0.04) | 95 (0.05) |