1,051
Participants
Start Date
June 10, 2021
Primary Completion Date
February 5, 2022
Study Completion Date
March 21, 2022
Epidural analgesia
Epidural analgesia is performed with a mixture of local anesthetics (ropivacaine) and opioids (sufentanil).
Peking University First Hospital, Beijing
Guangzhou Women and Children's Medical Center, Guangzhou
Xiamen maternal and child hospital, Xiamen
Dongguan women and children's hospital, Dongguan
Shijiazhuang Obstetric and Gynecology Hospital, Shijiazhuang
Tangshan maternal and child hospital, Tangshan
Beijing Fuxing Hospital, Beijing
Beijing Haidian women and children's Hospital, Beijing
Guangdong Women and Children Hospital
OTHER
Tangshan Maternal and Child Health Hospital
OTHER
Dongguan Maternal and Child Health Hospital
UNKNOWN
Beijing Haidian Maternal and Child Health Hospital
OTHER
Beijing Fuxing Hospital
UNKNOWN
The Fourth Hospital of Shijiazhuang
OTHER
Xiamen Maternity & Child Care Hospital
OTHER
Peking University First Hospital
OTHER