Table 1.
Main Characteristics of included studies in the meta-analysis.
| Study | Date (month, day) |
Patients (No.) |
Age (year) |
Symptoms (%) |
Comorbidities (%) |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All | Male | Fever | Cough | Fatigue | Dyspnea | Hypertension | Diabetes | Respiratory system disease | Cardiovascular diseases | |||
| Huang et al. (2020) | 12.16-01.02 | 41 | 30 | 49.0 | 98.0 | 76.0 | 44.0 | 55.0 | 15.0 | 20.0 | 2.0 | 15.0 |
| Liu et al. (2020) | 12.30-01.24 | 137 | 61 | 57.0 | 81.8 | 48.2 | 32.1 | 19.0 | 9.5 | 10.2 | 1.5 | 7.3 |
| Liu et al. (2019) | 01.10-01.21 | 12 | 8 | 53.7 | 83.3 | 91.7 | 25.0 | 16.7 | 8.3 | 33.3 | ||
| Wang et al. (2020) | 01.01-01.28 | 138 | 75 | 56.0 | 98.6 | 59.4 | 69.6 | 31.2 | 31.2 | 10.1 | 2.9 | 14.5 |
| Zhang et al. (2020a) | 01.06-02.03 | 140 | 71 | 57.0 | 91.7 | 75.0 | 75 | 36.7 | 30.0 | 12.1 | 1.4 | 5.0 |
| Zhang et al. (2020b) | 01.18-02.03 | 9 | 5 | 35.2 | 88.9 | 55.6 | 44.4 | 0 | 11.1 | 0 | 0 | |
| Guan et al. (2020) | −01.29 | 1 099 | 640 | 47.0 | 87.9 | 67.7 | 38.1 | 18.6 | 14.9 | 7.4 | 1.4 | 2.5 |
| Total | 12.16-02.03 | 1 576 | 890 | 49.6 a | ||||||||
| NCPERETb | 12.31-02.11 | 44 672 | 22 981 | 45.9 | 12.8 | 5.3 | 2.4 | 4.2 | ||||
| Prevalence(%)c | 91.3 | 67.7 | 51.0 | 30.4 | 21.1 | 9.7 | 1.5 | 8.4 | ||||
| 95% CI | 86–97 | 59–76 | 34–68 | 21–40 | 13.0–27.2 | 7.2–12.2 | 0.9–2.1 | 3.8–13.8 | ||||
| I2 (%) | 92.1 | 84.9 | 96.4 | 91.1 | 86.2 | 28.7 | 0 | 83.4 | ||||
| P for heterogeneity | 0 | 0 | 0 | 0 | 0 | 0.209 | 0.872 | 0 | ||||
aaverage age.
bThe Novel Coronavirus Pneumonia Emergency Response Epidemiology Team.
cMeta-analysis for the prevalence was calculated from binary random-effects model analysis.