Demographic table of participants with usable data, listing age at recruitment, sex, ethnicity, socioeconomic status (Townsend Deprivation Index), body mass index (BMI), education and time between recruitment and the start of the COVID-19 pandemic
| Variable | N=151 200* |
| Age at recruitment (years) | 55.85 (7.73) |
| Sex | |
| Female | 85 469 (57%) |
| Male | 65 731 (43%) |
| Ethnicity | |
| White | 146 443 (97%) |
| Other | 2109 (1.4%) |
| Black or Black British | 1059 (0.7%) |
| Asian | 1589 (1.1%) |
| Townsend deprivation at recruitment | 1.72 (2.83) |
| BMI at recruitment | 26.8 (4.5) |
| Education | |
| A levels/AS levels or equivalent | 20 369 (15%) |
| College or university degree | 68 705 (49%) |
| CSEs or equivalent | 5587 (4.0%) |
| NVQ or HND or HNC or equivalent | 7558 (5.4%) |
| O levels/GCSEs or equivalent | 29 809 (21%) |
| Other professional qualifications for example, nursing, teaching | 7587 (5.4%) |
| Time between recruitment and start of pandemic (years) | 10.91 (0.86) |
Of note, all covariates (ie, age, BMI) were measured at baseline when individuals began participation in the UKBB.
*Mean (SD); n (%).
CSE, Certificate of Secondary Education; GCSE, General Certificate of Secondary Education; HNC, Higher National Certificate; HND, Higher National Diploma; NVQ, National Vocational Qualification; UKBB, UK Biobank.