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Characteristics of the TwinsUK sample
| Group | Sample size | Number with chronic fatigue (%) | Age (SD), years | BMI (SD), kg/m2 |
|---|---|---|---|---|
| COVID-19 cases | 282 | 49 (17.4) | 65.4 (10.2) | 26.5 (5.3) |
| COVID-19 controls | 992 | 113 (11.4) | 67.4 (9.6) | 26.2 (4.8) |
| p value | 0.011 | 0.0004 | 0.356 | |
p value provided for comparisons between COVID-19 cases and controls using Fisher’s exact test or Student’s t test
SD standard deviation
