Table 1.
Subgroup Analysis of Malaria Prevalence in Different Continents
| Heterogeneity | Egger Test | |||||||
|---|---|---|---|---|---|---|---|---|
| Continent | No. of Studies | Type of Study | Prevalence (95% CI) | I 2, % | Q | P Value | T | P Value |
| Africa | 33 | Microscopy | 0.21 (0.14–0.29) | 99 | 3299.3 | <.0001 | 9.5 | P < .0001 |
| 2 | PCR | 0.36 (0.11–0.72) | 96 | 25.8 | <.01 | - | - | |
| 7 | RDT | 0.074 (0.03–0.12) | 95.8 | 142.04 | <.0001 | 5.5 | .02 | |
| America | 1 | Microscopy | 0 | - | - | - | - | - |
| 4 | PCR | 0.02 (0.01–0.07) | 93 | 65.5 | <.01 | 13.3 | .21 | |
| Asia | 14 | Microscopy | 0.005 (0.01–0.05) | 98 | 333.1 | <.01 | 2.1 | .04 |
| 5 | PCR | 0.04 (0.01–0.13) | 85 | 34.9 | <.01 | 2.3 | .5 | |
| 15 | RDT | 0.00 (0.00–0.00) | 97.5 | 550.8 | <.0001 | 3.34 | .0063 | |
| Europe | 3 | Microscopy | 0.00 (0.00–0.00) | 34 | - | .22 | - | .01 |
| 3 | PCR | 0.01 (0.00–0.03) | 54 | 4.1 | .11 | - | - | |
| 3 | RDT | 0.00 (0.00–0.00) | 0 | 0.59 | .74 | - | - | |
Abbreviations: CI, confidence interval; PCR, polymerase chain reaction; RDT, rapid diagnostic testing.