Article Text
Statistics from Altmetric.com
QUESTION: In participants receiving intramuscular vaccination, does the application of manual pressure decrease the amount of pain perceived?
Design
Randomised {allocation concealed*}†, unblinded,* controlled trial with follow up immediately after injection.
Setting
An active immunisation programme at a Hong Kong University.
Participants
74 participants between 18 and 42 years of age (mean age 21 y, 55% women) who were participating in an immunisation vaccination campaign (convenience sample) and were university students of Chinese ethnic origin, able to read Chinese and communicate in Cantonese with no known history of special pain syndrome (eg, hyperalgesia and allodynia) were included. Follow up was 100%.
Intervention
The left and right arms of the participants (intrasubject comparison) were randomised to receive an intramuscular injection of hepatitis A and hepatitis B …
Footnotes
-
For correspondence: Dr J W Chung, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China. hsjchung{at}inet.polyu.edu.hk
-
Source of funding: not stated.
-
↵†Information provided by the author.