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Table 1 Description of the study population

From: Ethnic and socioeconomic differences in SARS-CoV-2 infection: prospective cohort study using UK Biobank

  Number Percentage
Tested for SARS-CoV-2
 No 389,458 99.3
 Yes 2658 0.7
Tested positive for SARS-CoV-2
 No 391,168 99.8
 Yes 948 0.2
Tested positive for SARS-CoV-2 in hospital
 No 391,390 99.8
 Yes 726 0.2
Age group at baseline
 40–44 40,995 10.5
 45–49 52,116 13.3
 50–54 60,291 15.4
 55–59 71,160 18.1
 60–64 95,604 24.4
 65–69 70,110 17.9
 70+ 1840 0.5
Sex
 Female 215,351 54.9
 Male 176,765 45.1
Ethnicity
 White British 348,735 88.9
 White Irish 9800 2.5
 White Other 12,925 3.3
 Mixed 2356 0.6
 Indian 4571 1.2
 Pakistani 1259 0.3
 Other South Asian 1493 0.4
 Black Caribbean 3669 0.9
 Black African 2623 0.7
 Black Other 103 0.0
 Chinese 1153 0.3
 Others 3429 0.9
Country of birth
 UK and Ireland 361,025 92.1
 Elsewhere 31,091 7.9
Number in household
 1 69,862 17.8
 2 183,777 46.9
 3 62,934 16.0
 4+ 75,543 19.3
Education level
 College or university degree 128,890 32.9
 A levels/AS levels 44,650 11.4
 O levels/GCSEs/CSEs 108,648 27.7
 Others 46,393 11.8
 None of the above 63,535 16.2
Deprivation quartile
 Quartile 1 (most advantaged) 100,701 25.7
 Quartile 2 99,838 25.5
 Quartile 3 98,380 25.1
 Quartile 4 (least advantaged) 93,197 23.8
Housing tenure
 Own 352,079 89.8
 Rent/others 40,037 10.2
Urban/rural
 Urban 334,570 85.3
 Rural 57,546 14.7
Employment status
 In paid employment or self-employed 230,190 58.7
 Retired 128,613 32.8
 Looking after home and/or family 10,956 2.8
 Unable to work because of sickness or disability 11,111 2.8
 Unemployed 6386 1.6
 Others 4860 1.2
Manual occupation
 Non-manual 199,564 50.9
 Manual 30,626 7.8
 Not in employment 161,926 41.3
Healthcare worker
 No 204,254 52.1
 Yes 25,936 6.6
 Not in employment 161,926 41.3
Long-standing illness, disability or infirmity
 No 268,919 68.6
 Yes 123,197 31.4
Number of chronic conditions
 0 147,943 37.7
 1 130,034 33.2
 2 69,222 17.7
 3 28,957 7.4
 4+ 15,960 4.1
Overall health rating
 Excellent 65,560 16.7
 Good 231,672 59.1
 Fair 79,347 20.2
 Poor 15,537 4.0
BMI category
 Underweight (< 18.5) 1928 0.5
 Normal weight (18.5–24.9) 129,755 33.1
 Overweight (25.0–29.9) 166,979 42.6
 Obese (≥ 30.0) 93,454 23.8
Smoking status
 Never 217,297 55.4
 Previous 136,482 34.8
 Current 38,337 9.8
Alcohol consumption
 Daily or almost daily 81,567 20.8
 Three or four times a week 92,308 23.5
 Once or twice a week 100,956 25.7
 One to three times a month 43,743 11.2
 Special occasions only 43,916 11.2
 Never (former drinker) 13,315 3.4
 Never 16,311 4.2
Total 392,116 100.0