Athlete characteristics and symptom patterns associated with prolonged time loss (>28 days)
| Time loss ≤28 days | Time loss >28 days | Risk ratio of impact >28 days | ||
| N=107 (73%) | N=40 (27%) | |||
| Age (mean (SD)) | 24.1 (5.1) | 26.0 (5.4) | — | |
| Gender | Male:female | 64:43 | 28:12 | — |
| Sport type | Summer sport | 97 (91%) | 39 (98%) | 3.2 (0.5 to 20.8) |
| Winter sport | 10 (9%) | 1 (2%) | 0.3 (0.05 to 2.1) | |
| Able-bodied sport | 90 (84%) | 32 (80%) | 0.82 (0.4 to 1.6) | |
| Paralympic sport | 17 (16%) | 8 (20%) | 1.2 (0.6 to 2.3) | |
| Comorbidities | No comorbidities | 84 (79%) | 29 (72%) | 0.9 (0.5 to 1.6) |
| At least one comorbidity | 23 (21%) | 11 (28%) | 1.1 (0.6 to 2.1) | |
| Phenotype | Upper respiratory | 43 (40%) | 11 (28%) | 0.7 (0.4 to 1.2) |
| Cough | 29 (27%) | 8 (20%) | 0.7 (0.4 to 1.5) | |
| Non-specific | 19 (18%) | 9 (22%) | 1.2 (0.7 to 2.3) | |
| Lower respiratory | 13 (12%) | 12 (30%) | 2.1 (1.2 to 3.5)* | |
| Gastrointestinal | 3 (3%) | 0 (0%) | 0.5 (0.04 to 6.8) | |
| Symptoms | Fatigue | 59 (55%) | 25 (62%) | 1.0 (0.7 to 1.4) |
| Dry cough | 52 (49%) | 21 (52%) | 0.9 (0.6 to 1.4) | |
| Headache | 44 (41%) | 24 (60%) | 1.2 (0.8 to 1.7) | |
| Fever | 45 (42%) | 15 (38%) | 0.8 (0.5 to 1.3) | |
| Sore throat | 31 (29%) | 12 (30%) | 0.9 (0.6 to 1.5) | |
| Myalgia/arthralgia | 32 (30%) | 10 (25%) | 0.8 (0.4 to 1.3) | |
| Anosmia/dysgeusia | 25 (23%) | 9 (22%) | 0.9 (0.5 to 1.5) | |
| Dyspnoea | 14 (13%) | 12 (30%) | 1.6 (1.0 to 2.0) | |
| Diarrhoea | 4 (4%) | 2 (5%) | 1.1 (0.4 to 3.4) | |
| Nausea | 4 (4%) | 2 (5%) | 1.1 (0.4 to 3.4) | |
| Chest pain | 1 (1%) | 4 (10%) | 2.7 (1.7 to 4.2)† | |
| Dizziness | 3 (3%) | 1 (2%) | 0.8 (0.2 to 4.5) | |
| Abdominal pain | 2 (2%) | 1 (2%) | 1.1 (0.2 to 5.5) | |
Percentages are of the column subtotals.
*P=0.014.
†P=0.032.