Table 1 Characteristics of the study cohort.
From: Discerning cognitive domains through online assessment in aging participants in Norwegian Cohort 50+
Characteristic, n = 3215 | Statistic | Missing values, n (%) |
|---|---|---|
Age, median (IQR) | 64.0 (57.9, 69.6) | 0 (0.0) |
Female, n (%) | 2394 (74.5) | 0 (0.0) |
Higher education, n (%) | 2504 (77.9) | 0 (0.0) |
Marital status, n (%) | 23 (0.7) | |
Married/ civil partnership/ co-habiting | 2290 (71.7) | |
Widowed/ separated/ divorced/ single | 902 (28.3) | |
Working (full-time or part-time), n (%) | 1609 (50.2) | 8 (0.2) |
Has a doctor ever given you a diagnosis of, or told you that you have… | ||
Diabetes, n (%) | 107 (3.9) | 458 (14.2) |
High blood pressure, n (%) | 656 (23.8) | 458 (14.2) |
Heart disease, n (%) | 187 (6.8) | 458 (14.2) |
Stroke, n (%) | 67 (2.4) | 458 (14.2) |
Have you ever experienced a head injury where you lost consciousness?, n (%) | 407 (14.7) | 450 (14.0) |
Do you have problems with your hearing?, n (%) | 818 (29.6) | 450 (14.0) |
Depression, n (%) | 510 (20.6) | 739 (23.0) |
Isolation (no confiding relations since 16 years old), n (%) | 64 (2.7) | 882 (27.4) |
Have you done any physical activity lasting at least 20 min that has left you out of breath in the last month?, n (%) | 2512 (91.1) | 458 (14.2) |
How often do you normally have a drink of something with alcohol in?, n (%) | 458 (14.2) | |
Never | 165 (6.0) | |
Less than once a month | 432 (15.7) | |
Less than once a week | 656 (23.8) | |
At least weekly | 1504 (54.6) | |
Drinking more than 2 drinks containing alcohol on a typical day when you are drinking, n (%) | 712 (31.1) | 924 (28.7) |
Smoking | 458 (14.2) | |
Never smoked | 1138 (41.3) | |
Current smoker | 153 (5.5) | |
Stopped smoking | 1466 (53.2) | |
BMI | 456 (14.2) | |
Healthy (18.5–24.9) | 1277 (46.3) | |
Underweight (< 18.5) | 24 (0.9) | |
Overweight (25.0–29.9) | 1058 (38.3) | |
Obese (≥ 30) | 400 (14.5) | |
Self-reported sleep dissatisfaction, n (%) | 713 (26.5) | 529 (16.5) |
Total scores | Mean ± SD | |
Digit Span Memory Test | 6.3 ± 2.5 | |
Paired Associate Learning | 3.6 ± 1.0 | |
Self-Ordered‐Search task | 6.5 ± 2.5 | |
Grammatical Reasoning task | 24.5 ± 10.1 | |
Stroop test | 34.0 ± 14.4 | |
Trail Making test (min) | 1.2 ± 0.5 | |
Error scores | Mean ± SD | |
Digit Span Memory Test | 4.3 ± 1.2 | |
Paired Associate Learning | 4.1 ± 1.0 | |
Self-Ordered‐Search task | 1.0 ± 1.8 | |
Grammatical Reasoning task | 4.5 ± 3.6 | |
Stroop test | 11.0 ± 6.3 | |
Trail Making test | 2.7 ± 4.9 | |
Maximum number of repeats | 1.8 ± 0.8 | |
