Table 3. Meta-analysis for the prevalence of clinical symptoms in flavivirus infections in the selected studies.
| Infection | Clinical symptoms1 | |||||
|---|---|---|---|---|---|---|
| Fever | Headache | Muscle Pain | Rash | Malaise | ||
| Dengue fever | ||||||
| Prevalence (%) | 96.9 (28) |
50.8 (22) |
48.0 (16) |
30.8 (24) |
33.4 (4) |
|
| 95% CI (%) | 92.5–98.8 | 42.8–58.7 | 34.2–62.0 | 26.3–35.6 | 12.0–64.8 | |
| n | 22,053 | 14,158 | 9,656 | 12,805 | 1,957 | |
| Q | 15.0 | 68.6 | 19.0 | 56.0 | 3.6 | |
| I2 | 0.0 | 69.4 | 26.2 | 60.7 | 16.4 | |
| τ2 | 136.5 | 12.0 | 17.4 | 5.4 | 6.9 | |
| West Nile Virus | ||||||
| Prevalence (%) | 77.1 (5) |
38.9 (4) |
49.3 (2) |
13.9 (2) |
51.1 (2) |
|
| 95% CI (%) | 19.8–97.9 | 17.8–65.2 | 5.6–94.1 | 8.7–21.5 | 20.0–81.4 | |
| n | 423 | 399 | 1,104 | 115 | 323 | |
| Q | 3.9 | 1.9 | 1.0 | 0.001 | 1.0 | |
| I2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| τ2 | 40.2 | 4.5 | 8.1 | 0.0 | 2.0 | |
1Number in parenthesis represents the number of studies from which prevalence was extracted.