Loading...
 
Translate Register Log In Login with facebookLogin and Register

94 X increase in Vitamin D testing in Australia (2000-2010, then they shut it down) – Dec 2019

(Oral Presentation)  Vitamin D test ordering practices of australian general practitioners between 2007 and 2017: evidence from electronic health records

BMJ Evidence Based Medicine http://dx.doi.org/10.1136/bmjebm-2019-POD.43
Gorkem Sezgin, Andrew Georgiou

Objectives: Concerns of over-testing of vitamin D tests were raised when a study Bilinski and Boyages reported an increase in Medicare claimed vitamin D tests by over 10-fold from 2006 to 2010 across Australia, and 94-fold from 2000 to 2010. Most vitamin D tests during this period were ordered by general practitioners. Our aim was to determine the procedures and diagnoses associated with the utilisation of vitamin D testing among Australian general practitioners and describe the change in its use throughout the last decade.

Methods: We conducted a retrospective observational study based on secondary data analysis of electronic health record data from Australian general practices. Our study included data from three Primary Health Networks across Victoria: Gippsland, Eastern Melbourne, and South Eastern Melbourne, which was sourced from the Population Level Analysis and Reporting (POLAR) Data Space. Procedures containing the most vitamin D test orders were identified and generalised linear modelling containing the socio-demographic parameters gender, age, Primary Health Network, season, quarter of the year, year, and socio-economic status were utilised to estimate the proportion of test requests containing vitamin D for each procedure each year.

Results: Vitamin D testing was most frequently associated with general procedures, including: health check-up, pregnancy/antenatal care, and pap-smear. Among the top reasons for ordering vitamin D tests, osteoporosis was the only condition in compliance with recommended guidelines. While vitamin D testing was rarely ordered for antenatal care and pregnancy during 2007, by 2013 it was present in over 40% of test requests. Pap-smear testing were accompanied by vitamin D tests in over 11% of test requests after 2010: a 7-fold increase from 2007. In 2013, almost 50% of test requests for check-up contained vitamin D tests: an increase by over 5-fold from 2007. A similar pattern of vitamin D testing for fatigue was observed, with a peak of over 50% of test requests containing vitamin D in 2012. Although a reduction in vitamin D testing for general procedures occurred around 2015, its use has since been increasing. Vitamin D testing for osteoporosis remained relatively constant between 2007 and 2017, fluctuating between 30% and 40%.

Conclusion” Our study demonstrates an increase in vitamin D testing in recent years for general procedures. There is a strong possibility of over-utilisation of vitamin D testing which is unlikely to discontinue without intervention. We recommend conducting interventions promoting awareness and adherence to guidelines in order to reduce unnecessary or excessive testing.

Created by admin. Last Modification: Saturday December 7, 2019 02:29:08 GMT-0000 by admin. (Version 2)
See any problem with this page? Report it (FINALLY WORKS)