Table 2.
The risk of having positive chorionic villi in both groups.
| Study Group | Control Group | ||||
|---|---|---|---|---|---|
| RR | 95% CI | p Value | RR | 95% CI | p Value |
| 4.4 | 16–12.1 | 0.0018 | 3.9 | 1.1–1.6 | 0.0223 |
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.