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. 2021 Feb 4;9:e10891. doi: 10.7717/peerj.10891

Table 1. Summary of participant characteristics, stratified by COVID-19 outcome.

All1
(n = 6152)
COVID-19 composite endpoint2
(n = 1,806)
Self-isolated3
(n = 1,776)
Hospitalised4
(n = 49)
Lab-confirmed COVID-195
(n = 459)
Age
years, mean (SD) 43.2 (10.6) 41.9 (10.2) 41.9 (10.2) 42.6 (11.9) 42.5 (10.2)
Sex
Female 4,789 (77.8%) 1,416 (78.4%) 1,397 (78.7%) 32 (65.3%) 333 (72.5%)
Male 1,363 (22.2%) 390 (21.6%) 379 (21.3%) 17 (34.7%) 126 (27.5%)
Ethnic group
Asian or Asian British 846 (13.8%) 267 (14.8%) 259 (14.6%) 12 (24.5%) 74 (16.1%)
Black, African, Black British or Caribbean 299 (4.9%) 100 (5.5%) 98 (5.5%) 5 (10.2%) 23 (5.0%)
Mixed or multiple ethnic groups 149 (2.4%) 48 (2.7%) 48 (2.7%) 2 (4.1%) 14 (3.1%)
White 4,667 (75.9%) 1,330 (73.6%) 1,313 (73.9%) 29 (59.2%) 331 (72.1%)
Another ethnic group 162 (2.6%) 53 (2.9%) 50 (2.8%) 1 (2.0%) 16 (3.5%)
Prefer not to say 29 (0.5%) 8 (0.4%) 8 (0.5%) 0 (0.0%) 1 (0.2%)
Household - Persons
Lives alone 675 (11.0%) 205 (11.4%) 200 (11.3%) 6 (12.2%) 49 (10.7%)
Lives with 1 or more persons 5,477 (89.0%) 1,601 (88.6%) 1,576 (88.7%) 43 (87.8%) 410 (89.3%)
Household - Children
No children 2,338 (38.0%) 664 (36.8%) 654 (36.8%) 25 (51.0%) 168 (36.6%)
Has children 3,139 (51.0%) 937 (51.9%) 922 (51.9%) 18 (36.7%) 242 (52.7%)
Comorbidities
Hypertension 537 (8.7%) 158 (8.7%) 157 (8.8%) 6 (12.2%) 35 (7.6%)
Diabetes 188 (3.1%) 57 (3.2%) 54 (3.0%) 6 (12.2%) 17 (3.7%)
Cancer 78 (1.3%) 28 (1.6%) 28 (1.6%) 0 (0.0%) 5 (1.1%)
Heart disease 76 (1.2%) 23 (1.3%) 23 (1.3%) 0 (0.0%) 4 (0.9%)
Immunosuppression 109 (1.8%) 27 (1.5%) 27 (1.5%) 2 (4.1%) 2 (0.4%)
Respiratory disease 569 (9.2%) 198 (11.0%) 192 (10.8%) 15 (30.6%) 49 (10.7%)
Renal disease 35 (0.6%) 10 (0.6%) 10 (0.6%) 2 (4.1%) 3 (0.7%)
Liver disease 30 (0.5%) 10 (0.6%) 10 (0.6%) 0 (0.0%) 2 (0.4%)
Neurological disease 64 (1.0%) 18 (1.0%) 18 (1.0%) 0 (0.0%) 3 (0.7%)
Obesity 692 (11.2%) 236 (13.1%) 234 (13.2%) 8 (16.3%) 47 (10.2%)
None of the above 4,200 (68.3%) 1,192 (66.0%) 1,173 (66.0%) 23 (46.9%) 317 (69.1%)
Prefer not to say 97 (1.6%) 26 (1.4%) 25 (1.4%) 0 (0.0%) 8 (1.7%)
Tobacco smoking status
Current or Ex-smoker within 1 year 551 (9.0%) 142 (7.9%) 139 (7.8%) 3 (6.1%) 27 (5.9%)
Ex-smoker > 1 year 1,221 (19.8%) 361 (20.0%) 357 (20.1%) 7 (14.3%) 96 (20.9%)
Never smoked 4,305 (70.0%) 1,279 (70.8%) 1,258 (70.8%) 38 (77.6%) 327 (71.2%)
Prefer not to say 75 (1.2%) 24 (1.3%) 22 (1.2%) 1 (2.0%) 9 (2.0%)

Notes:

n (%) or mean (SD).

1

All participants.

2

Participants with the presence of the COVID-19 composite endpoint.

3

Participants who self-isolated due to symptoms and/or testing positive for SARS-CoV-2.

4

Participants who were hospitalised due to suspected/confirmed COVID-19.

5

Participants who have tested positive for SARS-CoV-2.