PMID- 22293889 OWN - NLM STAT- MEDLINE DCOM- 20120529 LR - 20211021 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 18 IP - 2 DP - 2012 Feb TI - The temporal relationship between RotaTeq immunization and intussusception adverse events in the Vaccine Adverse Event Reporting System (VAERS). PG - PH12-17 AB - BACKGROUND: In August of 2006, the Advisory Committee on Immunization Practices (ACIP) recommended RotaTeq for routine vaccination of US infants. The hypothesis tested in the present study is that rotavirus vaccines are associated with an increased risk of intussusception adverse events (AEs) characterized by an onset in a biologically plausible a priori identified temporal period post-vaccination (days 3 to 7). MATERIAL/METHODS: The Vaccine Adverse Event Reporting System (VAERS) updated as of December 28, 2010 was analyzed. RESULTS: Following RotaTeq vaccination, a significantly (p<0.001) higher percentage of AEs were classified as serious, permanently disabling, resulted in hospitalizations, or were life-threatening among intussusception AEs in comparison to the total AE reports (removing intussusception AE reports) submitted to VAERS. A significantly greater portion of intussusception AEs in comparison to the portion of total AE reports (removing intussusception AE reports) were reported to VAERS in the onset interval from 3 to 7 days post-RotaTeq vaccination than within the onset interval from 1 to 2 days post-RotaTeq vaccination (78.7% vs. 29.1%, risk ratio=2.7, 95% CI=2.4-3.0, p<0.0001). It was assumed in our onset time-trend analyses of the distribution of AEs following Rota-Teq vaccination that the AE's should be equally likely to be reported with an onset time for each day, from 1 to 9 days post-vaccination or, alternatively, should follow similar daily proportions as observed for total AEs reports (removing intussusception AE reports). Results of this onset time-trend analyses of the distribution of intussusception AEs reported to VAERS following Rota-Teq vaccination revealed significant differences (p<0.001) from our expectations. Consistent and similarly remarkable trends were observed for intussusception AE reports associated with RotaShield vaccine. CONCLUSIONS: The present study significantly associates RotaTeq vaccination with intussusception AEs. FAU - Geier, David A AU - Geier DA AD - Institute of Chronic Illnesses, Inc., Silver Spring, MD, USA. FAU - King, Paul G AU - King PG FAU - Sykes, Lisa K AU - Sykes LK FAU - Geier, Mark R AU - Geier MR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - 0 (RotaTeq) RN - 0 (Rotavirus Vaccines) RN - 0 (Vaccines, Attenuated) SB - IM MH - Humans MH - Infant MH - Intussusception/*etiology MH - Rotavirus Vaccines/*adverse effects MH - United States MH - Vaccines, Attenuated/adverse effects PMC - PMC3560585 EDAT- 2012/02/02 06:00 MHDA- 2012/05/30 06:00 PMCR- 2012/02/01 CRDT- 2012/02/02 06:00 PHST- 2012/02/02 06:00 [entrez] PHST- 2012/02/02 06:00 [pubmed] PHST- 2012/05/30 06:00 [medline] PHST- 2012/02/01 00:00 [pmc-release] AID - 882470 [pii] AID - 10.12659/msm.882470 [doi] PST - ppublish SO - Med Sci Monit. 2012 Feb;18(2):PH12-17. doi: 10.12659/msm.882470.