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Biomedical subjects

Heather J McElroy

Publications and source records attributed to Heather J McElroy.

8 recordsLinked to original sources
PubMed2005

Empiric validation of the rural Australian Medical Undergraduate Scholarship 'rural background' criterion.

OBJECTIVE: Rural Australian Medical Undergraduate Scholarships (RAMUS) provide 10,000 dollars per annum to selected medical students with a rural background. Eligibility criteria include having lived in a rural community for five consecutive or eight cumulative years. We sought to validate the above-specified criterion using data from the Australian National Rural Background Study. DESIGN: National case control study stratified by jurisdiction. PARTICIPANTS: Two thousand four hundred and fourteen Australian-trained rural and urban general practitioners (GPs). MAIN OUTCOME MEASURE: Whether the RAMUS rural background criterion was met or not. RESULTS: Doctors who met the RAMUS rural background criterion were more likely to be in rural practice (odds ratio = 2.50; 95% confidence interval, 1.97-3.18) than those who did not. This was true for all jurisdictions (except for the Northern Territory) and ranged from 1.95 for South Australia to 3.57 for Victoria. CONCLUSION: Rural GPs are more likely to fulfil the RAMUS rural background criterion, supporting the existence of the RAMUS scheme.

Adult↗
PubMed2004

The Australian Orthopaedic Association National Joint Replacement Registry.

In the financial year ending June 2002, 26 689 hip replacements and 26089 knee replacements (total, 52778) were performed in Australia. Hip and knee replacement procedures have increased between 5%-10% each year for the past 10 years, with a combined increase in hip and knee replacement of 13.4% in the past year. The revision rate for hip replacement surgery in Australia is unknown but is estimated to be 20%-24%; the revision rate for hip replacement surgery in Sweden is 7%. Although data collection for the Registry is voluntary, it has 100% compliance from hospitals undertaking joint-replacement surgery.

Arthroplasty, Replacement↗
PubMed2004

Randomized controlled trial of unflued gas heater replacement on respiratory health of asthmatic schoolchildren.

BACKGROUND: Previous studies do not provide a clear picture of the relationship between nitrogen dioxide (NO(2)) exposure and asthma. METHODS: Eighteen schools using unflued gas heating in winter were randomly allocated to either retain their heaters (10 control schools) or to have replacement flued gas or electric heaters installed at the beginning of winter (8 intervention schools). Fortnightly telephone interviews were used to record daily individual asthma symptoms that occurred over 12 weeks (including winter). Lung function and histamine challenge tests were performed at baseline and the end of the study. NO(2) was measured in each school classroom on 9 days and in each household on 3 days spread over the study period. RESULTS: From 199 primary school children that met the eligibility criteria, 45 intervention and 73 control children agreed to participate. Baseline characteristics were similar between groups. Difficulty breathing during the day (Relative Risk [RR] = 0.41; 95% CI: 0.07, 0.98) and night (RR = 0.32; 95% CI: 0.14, 0.69), chest tightness during the day (RR = 0.45; 95% CI: 0.25, 0.81), and daytime asthma attacks (RR = 0.39; 95% CI: 0.17, 0.93) were significantly reduced in the intervention group. Percentage predicted forced expiratory volume in one second (FEV(1)), the concentration of histamine inducing a 20% fall in FEV(1) (PD(20)), and the dose-response slope (DRS) were similar between groups at follow-up. Mean (standard deviation) NO(2) levels were 15.5 (6.6) parts per billion (ppb) and 47.0 (26.8) ppb in the intervention and control schools respectively (P < 0.001). CONCLUSIONS: Asthma symptoms were reduced following a replacement intervention that removed high exposure to NO(2). Such replacement should be considered a public health priority for schools using unflued gas heating during winter.

Air Pollutants↗
PubMed2004

Trial of nurse-run asthma clinics based in general practice versus usual medical care.

OBJECTIVE: The aim of this study was to assess the ability of nurse-run asthma clinics based in general practice compared with usual medical care to produce at least a moderate improvement in the quality of life of adults with asthma. METHODOLOGY: A randomized controlled trial involving 80 asthma clinic and 90 usual medical care asthma participants, aged 18 years and older was conducted in 11 general practices in Adelaide. The main outcome measure was the St George's respiratory questionnaire (SGRQ), from which quality-of-life scores were used to assess therapeutic benefit. Lung function measurements and health services utilization data were also collected. RESULTS: One hundred and fifty-three participants (90%) were reviewed at follow up after 6-9 months. There was little difference between groups in baseline measures or for the 6-month follow-up outcomes, including the mean difference in total SGRQ scores (-0.5, 95% confidence interval (CI) -4.0, 2.9) and the mean difference in percentage predicted FEV(1) (2.3%, 95% CI -0.7, 5.3 pre-bronchodilator; 0.4%, 95% CI -5.1, 5.9 post-bronchodilator). Trends in health services utilization were noted. CONCLUSIONS: Nurse-run asthma clinics based in general practice and usual medical care were similar in their effects on quality of life and lung function in adults. These findings cannot be generalized to hospital outpatients and other clinics that manage more severe asthmatic patients.

Adult↗
PubMed2003

Factors associated with rural practice among Australian-trained general practitioners.

OBJECTIVE: To determine the factors associated with general practitioners' current practice location, with particular emphasis on rural location. DESIGN: Observational, retrospective, case-control study using a self-administered questionnaire. SETTING: Australian general practices in December 2000. PARTICIPANTS: 2414 Australian-trained rural and urban GPs. MAIN OUTCOME MEASURE: Current urban or rural practice location. RESULTS: For Australia as a whole, rural GPs were more likely to be male (odds ratio [OR], 1.42; 95% CI, 1.17-1.73), Australian-born (OR, 1.95; 95% CI, 1.55-2.45), and to report attending a rural primary school for "some" (OR, 2.21; 95% CI, 1.69-2.89) or "all" (OR, 2.79; 95% CI, 1.94-4.00) of their primary schooling. Rural GPs' partners or spouses were also more likely to report "some" (OR, 2.75; 95% CI, 2.07-3.66) or "all" (OR, 2.86; 95% CI, 2.02-4.05) rural primary schooling. A rural background in both GP and partner produced the highest likelihood of rural practice (OR, 6.28; 95% CI, 4.26-9.25). For individual jurisdictions, a trend towards more rural GPs being men was only significant in Tasmania. In all jurisdictions except Tasmania and the Northern Territory, rural GPs were more likely to be Australian-born. CONCLUSIONS: GPs' and their partners' rural background (residence and primary and secondary schooling) influences choice of practice location, with partners' background appearing to exert more influence.

Adult↗
PubMed2003

Hospital attendance prediction tool also identifies impaired quality of life in adults with asthma in general practice.

STUDY OBJECTIVE: To assess the ability of an adult risk screening questionnaire (RSQ), previously shown to predict attendance at hospital emergency departments, to identify impaired quality of life in adult patients with asthma in general practice. DESIGN: Baseline data from an RCT of asthma clinics in general practice, using the St. George Respiratory Questionnaire (SGRQ) to measure quality of life. SETTING: Twelve general practices in Adelaide, Australia. RESULTS: A total of 184 adult asthmatics were recruited, with a mean (standard deviation) age of 50.3 years (16.6 years). Age, gender, weight, number of comorbidities, smoking status, FEV1 and percent predicted FEV1 (pre-and post-bronchodilator), peak flow (pre and post), and RSQ were independently related to SGRQ scores. After adjusting for potential confounders, an RSQ score predictive of hospital attendance was also associated with an average increase (worsening) in SGRQ total score of 11.9 (95% CI: 7.6, 16.3), an average increase in activity score of 9.0 (2.5, 15.5), symptom score of 14.8 (8.6, 21.0), and impact score of 13.1 (8.6, 17.6). These represent clinically significant differences. CONCLUSION: An RSQ score predictive of hospital attendance should alert the general practitioner to explore and address symptom, activity, and impact domains associated with impaired quality of life in adult asthma.

Asthma↗
PubMed2002

The effectiveness of coordinated care for people with chronic respiratory disease.

OBJECTIVES: To evaluate the effectiveness of coordinated care for chronic respiratory disease. DESIGN AND SETTING: Community-based geographical control study, in western (intervention) and northern (comparison) metropolitan Adelaide (SA). PARTICIPANTS: 377 adults (223 intervention; 154 comparison) with chronic obstructive pulmonary disease, asthma or other chronic respiratory condition, July 1997 to December 1999. INTERVENTION: Coordinated care (includes care coordinator, care guidelines, service coordinator and care mentor). MAIN OUTCOME MEASURES: Hospital admissions (any, unplanned and respiratory), functionality (activities of daily living) and quality of life (SF-36 and Dartmouth COOP). RESULTS: At entry to the study, intervention and comparison subjects were dissimilar. The intervention group was 10 years older (P < 0.001), less likely to smoke (P = 0.014), had higher rates of hospitalisation in the previous 12 months (P < 0.001) and had worse self-reported quality of life (SF-36 physical component summary score [P < 0.001] and four of nine COOP domains [P = 0.002-0.013]). After adjustment for relevant baseline characteristics, coordinated care was not associated with any difference in hospitalisation, but was associated with some improvements in quality of life (SF-36 mental component summary score [P = 0.023] and three of nine COOP domains [P = 0.008-0.031]) compared with the comparison group. CONCLUSIONS: Coordinated care given to patients with chronic respiratory disease did not affect hospitalisation, but it was associated with an improvement in some quality-of-life measures.

Activities of Daily Living↗