Lyons R, Howell F
Eastern Health Board, Community Care Area 7, Aras Daimhin, Dublin, Republic of Ireland.
Arch Dis Child. 1991 Mar;66(3):346-7. doi: 10.1136/adc.66.3.346.
Seventy-seven children (mean age 44.2 months) were entered in a randomised double blind study to find out if two commonly used measles, mumps, and rubella (MMR) vaccines (Pluserix and MMR II) caused pain on injection. Pain was judged by the amount of crying. Infants given MMR II were 2.31 times more likely to cry than those given Pluserix.
77名儿童（平均年龄44.2个月）参与了一项随机双盲研究，以确定两种常用的麻疹、腮腺炎和风疹（MMR）疫苗（普乐可复和MMR II）是否会引起注射疼痛。通过哭闹程度来判断疼痛情况。接种MMR II的婴儿哭闹的可能性是接种普乐可复的婴儿的2.31倍。
