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.
| Trials | Maternal age (years) | Gestational age (weeks) | Cervical dilation (cm) |
|---|---|---|---|
| Blanch 1998 | 24.5 | - | 4.6 |
| Br\l=e'\art 1992 | 25.2 | 39.5 | 3.3 |
| Cammu 1996 | 27.2 | 39.7 | 3.2 |
| Cluett 2004 | 25.4 | 40.0 | 5.3 |
| Cohen 1987 | 20.0 | - | 2.8 |
| Frigoletto 1995 | - | - | 3.4 |
| Lopez-Zeno 1992 | 27.0 | 39.8 | 3.2 |
| Nachum 2010 | 28.2 | 39.6 | 3.0 |
| Rogers 1997 | 20.6 | 39.5 | 2.9 |
| Sadler 2000 | 25.7 | 39.7 | 4.5 |
| Serman 1995 | 23.6 | 39.1 | - |
| Snehlata 2011 | - | - | - |
| Somprasit 2005 | 24.3 | - | 3.1 |
| Tabowei 2003 | 23.8 | 40.1 | - |
