• John W Harrington, Stacey Logan, Courtney Harwell, Jessica Gardner, Jessica Swingle, Erin McGuire, and Rosemarie Santos.
• Department of Pediatrics, Eastern Virginia Medical School, Norfolk, Virginia , USA. John.Harrington@chkd.org
• Pediatrics. 2012 May 1;129(5):815-22.

BackgroundTo measure the analgesic effectiveness of the 5 S's (swaddling, side/stomach position, shushing, swinging, and sucking) alone and combined with sucrose, during routine immunizations at 2 and 4 months.MethodsWe conducted a prospective, randomized, placebo-controlled trial with 2- and 4-month-old infants during well-child visits. Patients were assigned into 4 groups (2 × 2) receiving either 2 mL of water or 2 mL of 24% oral sucrose and then either standard-of-care comfort measures by parents or intervention with the 5 S's immediately postvaccination. The Modified Riley Pain Score was used to score the infants' pain at 15-second intervals for 2 minutes, then every 30 seconds up to 5 minutes postvaccination. Repeated-measures analysis of variance examined between group differences and within-subject variability of treatment effect on overall pain scores and length of crying.ResultsTwo hundred thirty infants were enrolled. Results revealed significantly different mean pain scores between study groups with the exception of the 5S's and 5S's with sucrose groups. These 2 groups had lower similar mean scores over time, followed by sucrose alone, then control. The same trend was found with the proportion of children crying as with the mean pain score outcome measure.ConclusionsPhysical intervention of the 5 S's (swaddling, side/stomach position, shushing, swinging, and sucking) provided decreased pain scores on a validated pain scale and decreased crying time among 2- and 4-month-old infants during routine vaccinations. The use of 5S's did not differ from 5S's and sucrose.

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