Overall meta-analytical estimates of point prevalence of neurological or neuropsychiatric symptoms
| Symptom/syndrome | Studies | n | Point prevalence (%) | 95% CI | I2 |
| Headache | 84 | 64 613 | 20.7 | 16.1 to 26.1 | 99.0% |
| Myalgia | 76 | 66 268 | 25.1 | 19.8 to 31.3 | 99.1% |
| Fatigue | 67 | 21 101 | 37.8 | 31.6 to 44.4 | 98.7% |
| Anosmia | 63 | 15 975 | 43.1 | 35.2 to 51.3 | 98.8% |
| Dysgeusia | 52 | 13 686 | 37.2 | 29.8 to 45.3 | 98.6% |
| Dizziness/vertigo | 26 | 47 619 | 6.4 | 4.0 to 10.0 | 97.1% |
| Altered mental status | 19 | 49 326 | 8.2 | 4.4 to 14.8 | 99.0% |
| Anosmia at follow-up | 11 | 3182 | 11.8 | 5.5 to 23.5 | 98.5% |
| Depression | 10 | 43 128 | 23.0 | 11.8 to 40.2 | 99.3% |
| Anxiety | 9 | 42 566 | 15.9 | 5.6 to 37.7 | 99.5% |
| Sleep disorder | 8 | 42 221 | 23.5 | 12.0 to 40.9 | 98.9% |
| Ischaemic stroke | 8 | 5258 | 1.9 | 1.3 to 2.8 | 61.7% |
| Other CVD | 6 | 43 701 | 1.6 | 0.3 to 7.9 | 98.7% |
| Dysgeusia at follow-up | 6 | 2065 | 11.7 | 5.1 to 25.0 | 96.7% |
| Seizure | 5 | 41 929 | 0.06 | 0.06 to 0.07 | 0.0% |
| Haemorrhagic stroke | 5 | 3074 | 0.4 | 0.3 to 0.7 | 0.0% |
| Visual defect | 5 | 678 | 3.0 | 1.9 to 4.5 | 0.0% |
| Hearing impairment | 4 | 557 | 2.0 | 1.1 to 3.5 | 0.0% |
| Tinnitus | 4 | 455 | 3.5 | 1.7 to 7.4 | 51.8% |
| Weakness | 3 | 221 | 40.0 | 27.9 to 53.5 | 45.4% |
CVD, cardiovascular disease.