Table 2.

Summary of criteria adopted for pooling symptoms for the analysis

Label	Symptoms included
Headache	Headache; head fullness; pressure in the head; migraines
Visual_sx	Blurred vision; double vision; limitation of upward gaze/convergence; Parinaud syndrome; visual field defects
Nausea_vomit	Nausea; vomiting
Vertigo_dizziness	Vertigo; dizziness
Neurology_NOS	Paraesthesia; paresis; dysphasia/dysarthria; tremor
Sleep	Sleep disturbance
Cognitive	Memory deficit; attention deficit; cognitive impairment; ‘brain fog’; concentration deficit; confusion
Transient_LoC	Syncope; fainting; drop attacks
Seizures	Seizures
Gait	Ataxia; gait instability
Fatigue	Fatigue; malaise
Psych_depression	Depression; anxiety; ‘functional neurological disorder’; personality changes