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Table 4 Meta-analysis of odds ratios for signs, symptoms, and conditions in non-hospitalized adults with COVID-19 compared to negative controls, with co-morbidity-matched subgroup analysis

From: The burden of persistent symptoms after COVID-19 (long COVID): a meta-analysis of controlled studies in children and adults

Sign/symptom/condition

Overall

Matched comorbidity

Studies No

Pooled odds ratio (95% CI)

I2%

Studies No

Pooled odds ratio (95% CI)

I2%

Abdominal pain

5

0.83 (0.69–0.99)

83

3

0.94 (0.85–1.04)

62.9

Nausea or vomiting

6

0.95 (0.84–1.07)

1.08

4

0.91 (0.82–1.00)

0

Sore throat

6

0.79 (0.57–1.09)

91.8

4

0.98 (0.88–1.09)

0

Diarrhea

3

1.04 (0.43–2.51)

70.1

–

–

–

Fatigue

6

1.68 (1.36–2.07)

76

4

1.94 (1.69–2.23)

0

Headache

6

0.91 (0.76–1.09)

90.2

4

1.00 (0.86–1.16)

78.3

Fever

3

0.99 (0.63–1.58)

72.8

–

–

–

Dizziness

3

1.18 (1.04–1.35)

52.4

–

–

 

Anosmia

5

4.95 (2.64–9.31)

79.4

5

4.95 (2.64–9.31)

79.4

Sleep disorders

4

1.14 (1.04–1.26)

0

3

1.16 (0.96–1.39)

0

Congested or runny nose

3

0.90 (0.79–1.04)

0

–

–

–

Cough

6

0.91 (0.75–1.11)

88.7

4

1.01 (0.94–1.07)

3.3

Dyspnea

8

1.99 (1.52–2.61)

90.5

6

2.05 (1.49–2.81)

85.4

Depression

4

1.03 (0.90–1.19)

30.3

3

0.92 (0.77–1.10)

0

Anxiety

4

1.01 (0.88–1.16)

40.6

3

0.94 (0.79–1.12)

19.6

Brain fog/confusion/difficulty in concentration

12

2.29 (1.88–2.78)

90.1

10

2.63 (2.09–3.30)

81.1

Chest pain

5

1.44 (1.02–2.03)

95.1

4

1.21 (0.94–1.56)

87

Tachycardia

4

1.34 (1.04–1.73)

87.9

3

1.21 (0.98–1.5)

70

Myalgia/arthralgia

8

1.11 (0.98–1.25)

85.4

5

1.10 (0.97–1.25)

73.6

  1. No. number, CI confidence interval