Table 2.
The Results of Systematic Review and Meta-analysis
| Model | Number of Studies | Point estimate | Lower limit | Upper limit | P-value |
|---|---|---|---|---|---|
| Fixed | 5 | 2.528 | 1.643 | 3.890 | < 0.001 |
| Random | 5 | 2.778 | 1.535 | 5.027 | 0.001 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.