Increase in computed tomography in Australia driven mainly by practice change: A decomposition analysis

Background: Publicly funded computed tomography (CT) procedure descriptions in Australia often specify the body site, rather than indication for use. This study aimed to evaluate the relative contribution of demographic versus non-demographic factors in driving the increase in CT services in Australia. Methods: A decomposition analysis was conducted to assess the proportion of additional CT attributable to changing population structure, CT use on a per capita basis (CPC, a proxy for change in practice) and/or cost of CT. Aggregated Medicare usage and billing data were obtained for selected years between 1993/4 and 2012/3. Results: The number of billed CT scans rose from 33 per annum per 1000 of population in 1993/94 (total 572,925) to 112 per 1000 by 2012/13 (total 2,540,546). The respective cost to Medicare rose from $145.7 million to$790.7 million. Change in CPC was the most important factor accounting for changes in CT services (88%) and cost (65%) over the study period. Conclusions: While this study cannot conclude if the increase is appropriate, it does represent a shift in how CT is used, relative to when many CT services were listed for public funding. This ‘scope shift’ poses questions as to need for and frequency of retrospective/ongoing review of publicly funded services, as medical advances and other demand- or supply-side factors change the way health services are used

Primary care nurses: effects on secondary care referrals for diabetes

Background: Primary care nurses play an important role in diabetes care, and were introduced in GP-practice partly to shift care from hospital to primary care. The aim of this study was to assess whether the referral rate for hospital treatment for diabetes type II (T2DM) patients has changed with the introduction of primary care nurses, and whether these changes were related to the number of diabetes-related contacts in a general practice. Methods: Healthcare utilisation was assessed for a period of 365 days for 301 newly diagnosed and 2124 known T2DM patients in 2004 and 450 and 3226 patients in 2006 from general practices that participated in the Netherlands Information Network of General Practice (LINH). Multilevel logistic and linear regression analyses were used to analyse the effect of the introduction of primary care nurses on referrals to internists, ophthalmologists and cardiologists and diabetes-related contact rate. Separate analyses were conducted for newly diagnosed and known T2DM patients. Results: Referrals to internists for newly diagnosed T2DM patients decreased between 2004 and 2006 (OR:0.44; 95%CI:0.22-0.87) in all practices. For known T2DM patients no overall decrease in referrals to internists was found, but practices with a primary care nurse had a lower trend (OR:0.59). The number of diabetes-related contacts did not differ between practices with and without primary care nurses. Cardiologists’ and ophthalmologists’ referral rate did not change. Conclusions: The introduction of primary care nurses seems to have led to a shift of care from internists to primary care for known diabetes patients, while the diabetes-related contact rate seem to have remained unchanged.

Uptake of Medicare chronic disease items in Australia by general practice nurses and Aboriginal health workers

The Australian health care system is currently in a state of reform and there is increasing pressure to provide care in community settings. Rising costs, demands and population ageing underscore the importance of adopting models of health care delivery to address changing epidemiological patterns. Population ageing and the increase of chronic conditions challenge models based on acute care. Changes to the Medicare benefits schedule have facilitated the development of a range of expanded nursing services in the general practice setting. In particular, item number 10997 was introduced to reimburse practice nurses and Aboriginalhealth workers (AHWs) for providing monitoring and support to people with a chronic disease for and on behalf of a general practitioner (GP). The uptake of Medicare Item 100997 from 2007 to 2009, to monitor chronic disease interventions provided by general practice nurses has increased dramatically. The rate of uptake of Item 100997 has not been consistent across Statesand Territories, even allowing for population distributions. Exploring reasons for these regional variations and linking uptake of Medicare Item numbers to patient outcomes is important indeveloping the nursing role in Australian general practice

Trends over 5 years in cardiovascular medicine use in Australian veterans with diabetes

The definitive version is available at www.blackwell-synergy.comAimTo determine trends over 5 years in cardiovascular medicine use in the Australian veteran population with diabetes.MethodsAn observational study. All veterans dispensed medicines indicative of diabetes between 2000 and 2005 were identified from the Veterans Affairs pharmacy claims dataset. Concurrent dispensings of angiotensin-converting enzyme inhibitor (ACEI), lipid-lowering medicines and antiplatelets were assessed.ResultsACEI/angiotensin II receptor blocker use has risen from 46% to 67% in the veteran population dispensed medicines indicative of diabetes. Lipid-lowering medicines have increased from 33% to 58% and antiplatelets from 28% to 50%.ConclusionThe increasing use of cardiovascular medicines in the diabetes population is suggestive of improved treatment practices over time, consistent with guidelines and quality use of medicines initiatives.Roughead, Elizabeth E.; Pratt, Nicole; Gilbert, Andrew L

Optimising the expansion of the National Bowel Cancer Screening Program

Objectives: To estimate the impact of various expansion scenarios of the National Bowel Cancer Screening Program (NBCSP) on the number of bowel cancer deaths prevented; and to investigate the impact of the expansion scenarios on colonoscopy demand. Design: MISCAN-Colon, a well established, validated computer simulation model for bowel cancer screening, was adjusted to reflect the Australian situation. In July 2013, we simulated the effects of screening over a 50-year period, starting in 2006. The model parameters included rates of participation in screening and follow-up, rates of identification of cancerous and precancerous lesions, bowel cancer incidence, mortality and the outcomes of the NBCSP. Five implementation scenarios, based on biennial screening using an immunochemical faecal occult blood test, were developed and modelled. A sensitivity analysis that increased screening participation to 60% was also conducted. Participants: Australian residents aged 50 to 74 years. Main outcome measures: Comparison of the impact of five implementation scenarios on the number of bowel cancer deaths prevented and demand for colonoscopy. Results: MISCAN-Colon calculated that in its current state, the NBCSP should prevent 35 169 bowel cancer deaths in the coming 40 years. Accelerating the expansion of the program to achieve biennial screening by 2020 would prevent more than 70 000 deaths. If complete implementation of biennial screening results in a corresponding increase in participation to 60%, the number of deaths prevented will increase across all scenarios. Conclusions: The findings strongly support the need for rapid implementation of the NBCSP. Compared with the current situation, achieving biennial screening by 2020 could result in 100% more bowel cancer deaths (about 35 000) being prevented in the coming 40 years