Demographics, socioeconomic status and lifestyle of the study population
| COVID-19 status | ||||
| Self-reported (n=4711) | Tested (2883) | Diagnosed (123) | Total response (n=49 474) | |
| Sex, male% | 37.4 | 30.4 | 30.1 | 40.3 |
| Age, mean±SD | 42±11 | 44±12 | 44±9 | 46±12 |
| Ethnicity, white% | 89.4 | 92.8 | 94.3 | 92.0 |
| BMI, mean±SD | 25.9±4.3 | 25.7±4.3 | 25.7±3.8 | 26.0±4.2 |
| Underweight,% | 0.7 | 1.0 | 0.8 | 0.7 |
| Normal,% | 46.7 | 48.0 | 47.2 | 44.9 |
| Overweight,% | 37.2 | 36.6 | 40.7 | 40.0 |
| Obese,% | 15.4 | 14.5 | 11.4 | 14.5 |
| Education,% | ||||
| Low | 18.0 | 16.4 | 14.6 | 23.5 |
| Middle | 40.8 | 37.4 | 48.0 | 39.2 |
| High | 41.2 | 46.2 | 37.4 | 37.3 |
| Income, % | ||||
| Low | 30.1 | 28.3 | 23.6 | 28.1 |
| Middle | 29.5 | 30.7 | 33.3 | 33.7 |
| High | 40.4 | 41.0 | 43.1 | 38.2 |
| Smoking, % | ||||
| Current | 20.5 | 15.1 | 15.5 | 16.9 |
| Former | 33.0 | 36.1 | 40.7 | 36.3 |
| Never | 46.5 | 48.9 | 43.9 | 46.8 |
| TV watching time ≥4 hours/day,% | 15.2 | 15.1 | 18.7 | 16.7 |
| Sleep time <7 or>9 hours/day, % | 16.3 | 14.4 | 13.8 | 14.9 |
| MVPA <150 min/week,% | 38.8 | 37.5 | 29.3 | 37.9 |
| LLDS | 24.3±6.1 | 25.1±6.0 | 25.4±5.9 | 24.7±6.0 |
| Alcohol, g/day | 4.9 (1.3–11.0) | 3.9 (0.9–10.0) | 3.5 (0.9–9.0) | 4.9 (1.2–11.1) |
| Heavy drinker, % | 3.1 | 2.8 | 2.4 | 2.6 |
BMI, body mass index; LLDS, lifelines diet score; MVPA, non-occupational moderate-to-vigorous physical activity; SD, standard deviation.