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.
Comparison 7 Immediate postpartum insertion: TCu 200 versus Progestasert, Outcome 4 Instrument insertion: Life‐table rates per 100 women for continuation (12‐month).
| Instrument insertion: Life‐table rates per 100 women for continuation (12‐month) | ||
|---|---|---|
| Study | TCu 200 | Progestasert |
| Lavin 1983 | 86.1 | 57.2 |
