Format

Send to

Choose Destination
Med J Aust. 2013 Jun 3;198(10):554-8.

Human papillomavirus vaccine in boys: background rates of potential adverse events.

Author information

1
Surveillance of Adverse Events Following Vaccination in the Community SAEFVIC, Murdoch Childrens Research Institute, Melbourne, VIC. hazel.clothier@mcri.edu.au

Abstract

OBJECTIVES:

To determine background rates of potential adverse events following immunisation (AEFI) before expansion of the quadrivalent human papillomavirus (4vHPV) vaccination program to adolescent boys.

DESIGN, PATIENTS AND SETTING:

Retrospective analysis of hospital discharge data obtained from the Victorian Admitted Episodes Dataset and emergency department visit data obtained from the Victorian Emergency Minimum Dataset for boys aged 12 to < 16 2013s during the period 1 July 2004 to 30 June 2009.

MAIN OUTCOME MEASURES:

Numbers of and incidence rates for Guillain-Barré syndrome, anaphylaxis, seizures, syncope and other potential AEFI from 1 July 2004 to 30 June 2009, and estimated numbers of events after 4vHPV vaccination assuming no association (other than temporal) with the vaccine.

RESULTS:

We estimated background rates of neurological and allergic events in adolescent boys to be 252.9 and 175.2 per 100 000 person-2013s, respectively. Assuming an 80% vaccination rate with three doses per person - which equates to 1 440 000 doses administered nationally per 2013 in the first 2 2013s of the program - about 2.4 episodes of Guillain-Barré syndrome would be expected to occur in the 6 weeks following vaccination. Within 1 day of vaccination, about 3.9 seizures, 0.3 episodes of anaphylaxis and 6.5 acute allergy presentations would be expected.

CONCLUSIONS:

Routinely collected health outcome administration data can inform postlicensure safety surveillance of target conditions that might be perceived as AEFI.

PMID:
23725271
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Australasian Medical Publishing Company
Loading ...
Support Center