Comparison 12. NO2 concentration > 3 ppm: INO versus control.
| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 NO2 concentration > 3 ppm | 7 | 959 | Risk Ratio (M‐H, Fixed, 95% CI) | 3.36 [0.18, 63.89] |
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.