1,500
Participants
Start Date
June 30, 2006
Primary Completion Date
May 31, 2007
Study Completion Date
May 31, 2007
No Words
Without any words was given during pain management
Positive words
Positive words was given to PCA pain management patients at different time point,i.e. 3h, 6h, 12h and 18h.
Partially Negative Words
Partially negative words was given during PCA pain management at different time point,i.e. 3h, 6h, 12h and 18h.
Totally Negative Words
Totally negative words was given during PCA pain management at different time points, i.e. 3h, 6h, 12h and 18h
Nanjing Maternal and Child Care Hospital, Nanjing
Lead Sponsor
Confidential Enquiry into Maternal and Child Health
OTHER
Nanjing Medical University
OTHER