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. 2022 Apr 22;19(9):5093. doi: 10.3390/ijerph19095093

Table 1.

Participant characteristics.

Characteristic Total Sample (n = 477)
Age (years), mean (SD) 45.69 (10.02)
Gender (female), n (%) 425 (89.10)
BMI, median (IQR) 25.71 (22.51, 30.47)
Ethnicity, n (%)
White (British, Irish, Irish Traveller or other White backgrounds) 442 (92.70)
Black (African, Caribbean or other Black backgrounds) 3 (0.60)
Asian (Indian, Pakistani, Bangladeshi, Chinese or other Asian backgrounds) 18 (3.80)
Mixed (White and Asian, White and Black African, White and Black Caribbean, Other) 7 (1.50)
Other 4 (0.80)
Country, n (%)
England 358 (78.34)
Scotland 43 (9.41)
Wales 26 (5.69)
USA 11 (2.41)
Canada 5 (1.09)
Northern Ireland 5 (1.09)
Ireland 3 (0.66)
Finland 2 (0.44)
France 1 (0.22)
India 1 (0.22)
Netherlands 1 (0.22)
Sweden 1 (0.22)
Number of LC symptoms, median (IQR) 11 (8,14)
Time since COVID-19 symptom onset (months), n (%)
0–6 132 (27.67)
6–12 91 (19.08)
12–18 247 (51.78)
Method of COVID-19 diagnosis, n (%)
PCR test 226 (47.4)
Antibody test 50 (10.5)
Based on symptoms alone (including retrospectively) 177 (37.1)
No testing available at the time 12 (2.5)
Other 7 (1.5)
Co-morbidities prior to LC, n (%)
Allergies * 12 (2.5)
Autoimmune diseases 42 (8.8)
Cardiovascular disease 20 (4.2)
Chronic neurological conditions 10 (2.1)
Chronic pain 13 (2.7)
Chronic respiratory conditions 94 (19.7)
Diabetes (type 1 or 2) 17 (3.6)
Mental health ** 12 (2.5)
Migraines 10 (2.1)
No diagnosed co-morbidities 230 (48.2)
Osteoarthritis 11 (2.3)
Other (any co-morbidity with a frequency of <2%) 64 (13.4)
Unspecified hypo or hyperthyroidism 12 (2.5)

n; number, PCR; polymerase chain reaction, SD; standard deviation. * Allergies includes hay fever, eczema, coeliac disease, and non-coeliac gluten sensitivity. ** Mental health includes anxiety, depression, PTSD, and bipolar affective disorder.