title: Dental general anaesthetic receipt among Australians aged 15+ years, 1998-1999 to 2004-2005.
abstract: BACKGROUND
  Adults receive dental general anaesthetic (DGA) care when standard dental treatment is not possible. Receipt of DGA care is resource-intensive and not without risk. This study explores DGA receipt among 15+-year-old Australians by a range of risk indicators.
  
  
  METHODS
  DGA data were obtained from Australia's Hospital Morbidity Database from 1998-1999 to 2004-2005. Poisson regression modeling was used to examine DGA rates in relation to age, sex, Indigenous status, location and procedure.
  
  
  RESULTS
  The overall DGA rate was 472.79 per 100,000 (95% CI 471.50-474.09). Treatment of impacted teeth (63.7%) was the most common reason for DGA receipt, followed by dental caries treatment (12.4%), although marked variations were seen by age-group. After adjusting for other covariates, DGA rates among 15-19-year-olds were 13.20 (95% CI 12.65-13.78) times higher than their 85+-year-old counterparts. Females had 1.46 (95% CI 1.45-1.47) times the rate of their male counterparts, while those living in rural/remote areas had 2.70 (95% CI 2.68-2.72) times the rate of metropolitan-dwellers. DGA rates for non-Indigenous persons were 4.88 (95% CI 4.73-5.03) times those of Indigenous persons. The DGA rate for 1+ extractions was 461.9 per 100,000 (95% CI 460.6-463.2), compared with a rate of 23.6 per 100,000 (95% CI 23.3-23.9) for 1+ restorations.
  
  
  CONCLUSIONS
  Nearly two-thirds of DGAs were for treatment of impacted teeth. Persons aged 15-19 years were disproportionately represented among those receiving DGA care, along with females, rural/remote-dwellers and those identifying as non-Indigenous. More research is required to better understand the public health implications of DGA care among 15+-year-olds, and how the demand for receipt of such care might be reduced.
authors.affiliation: Australian Research Centre for Population Oral Health, The University of Adelaide, South Australia 5005, Australia. lisa.jamieson@adelaide.edu.au
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Jamieson
authors.forename: Kaye F
authors.initials: KF
authors.lastname: Roberts-Thomson