Tests Data tables by test Test No. of studies No. of participants 1 Cough 8 2607 2 Sputum production 6 2467 3 Dyspnoea 7 2554 4 Hypoxia 1 2929 5 Haemoptysis 1 116 6 Positive auscultation findings 1 788 7 Respiratory symptoms (not specified)) 1 788 8 Sore throat 6 2438 9 Nasal symptoms 5 2405 10 Loss of smell (anosmia) or loss of taste (ageusia) 1 870 11 Fever 9 5484 12 Low body temperature 1 3384 13 Shivers 1 132 14 Chills 2 1443 15 Myalgia or arthralgia 4 339 16 Myalgia or fatigue 2 1427 17 Fatigue 3 273 18 Headache 5 1700 19 Nausea/vomiting 3 489 20 Diarrhoea 6 1733 21 Abdominal pain 2 185 22 Gastrointestinal symptoms (not specified) 1 788 23 Low systolic blood pressure 1 3341 24 High systolic blood pressure 1 3341 25 Tachycardia 1 3373 26 Palpitations 1 132 27 Cough (non‐cross‐sectional study) 3 432 28 Sore throat (non‐cross‐sectional study) 3 432 29 Rhinorrhoea (non‐cross‐sectional study) 1 136 30 Nasal obstruction (non‐cross‐sectional study) 2 398 31 Loss of smell (anosmia) (non‐cross‐sectional study) 1 262 32 Loss of taste (ageusia) (non‐cross‐sectional study) 1 262 33 Positive auscultation findings (non‐cross‐sectional study) 1 34 34 Dyspnoea (non‐cross‐sectional study) 1 262 35 Chest tightness (non‐cross‐sectional study) 1 34 36 Fever (non‐cross‐sectional study) 2 296 37 Fatigue (non‐cross‐sectional study) 3 432 38 Myalgia or arthralgia (non‐cross‐sectional study) 1 262 39 Headache (non‐cross‐sectional study) 2 296 40 Diarrhoea (non‐cross‐sectional study) 3 812 41 Nausea/vomiting (non‐cross‐sectional study) 2 778 42 Gastrointestinal symptoms, not specified (non‐cross‐sectional study) 1 516