Frances Boreland

Managing environmental lead in Broken Hill: a public health success.

OBJECTIVES To describe locality-specific changes in blood lead levels of 1-4-year-old children in Broken Hill, NSW between 1991 and 2007. METHODS Annual age-sex standardised mean blood lead levels, blood lead screening clinic attendance rates and lead-dust levels for five lead-risk zones were calculated from routinely collected data. RESULTS Blood lead levels were similar in all localities in 2002, 2003, 2005 and 2006, after having been consistently higher in localities with highest environmental lead since 1991. CONCLUSIONS Combining health promotion with a targeted clean-up has reduced the effect of locality on blood lead levels. Results are consistent with reduced contamination due to effective soil stabilisation and storm-water control.

Lead dust in Broken Hill homes — a potential hazard for young children?

Objective: To determine the potential hazard posed by indoor lead dust to young children in Broken Hill, a silver‐lead‐zinc mining town in outback Australia, and the degree to which lead flux is influenced by factors such as geographical location, house construction type and condition.

Using performance indicators to monitor attendance at the Broken Hill blood lead screening clinic.

Although the average blood lead level of 1-4-year-old children in Broken Hill has halved since 1991, about 1 in 5 still have blood lead levels higher than the national target (<10 microg/dL). The estimated proportion of children attending the Lead Clinic has declined, to approximately 42% in 2006, raising concern that some children with elevated blood lead levels may not be presenting, thus missing out on appropriate treatment and advice. The aim of this study was to describe patterns of attendance at the clinic as a first step to understanding what factors contribute to clinic attendance and non-attendance. Routinely collected data from the Lead Clinic database were used to describe the impact of factors such as child age, the lead-risk area in which they live, seasonal influences and specific promotional activities on clinic attendance rates from 1999 to June 2007. Estimates of the number of children living in each of the five lead-risk areas were derived from 2001 and 2006 census data and estimates of the number of children born to mothers resident in Broken Hill were derived from the Midwives Data Collection. Attendance rates declined by approximately one-third during the study period. Younger children, and those living closer to the central mining area, were more likely to attend for blood lead screening. Cohort analysis indicated cumulative attendance has declined, with children born in 2005 having a cumulative incidence at 18 months of age 5-10% lower than that for previous birth cohorts. The majority (54%) of children who developed a notifiable blood lead level (15 microg/dL) were first detected at 2 years of age or older, a number of whom (40%) had no recorded tests before the age of 2 years. The analysis has demonstrated the benefits of using an expanded set of performance indicators to monitor the blood lead screening programme. It provides valuable additional information about the reach of the programme. Next steps include seeking additional feedback from carers and the broader community, developing a strategy to increase screening and monitoring the effectiveness of efforts to reinvigorate the lead management programme.

Screening for abdominal aortic aneurysm: does it affect men’s quality of life?

A prospective study investigated the psychological wellbeing and quality of life of older rural men after a community-based screening for abdominal aortic aneurysm (AAA). Five hundred and sixteen men aged 65-74 years attended the screening program; 53 had an abnormal aorta detected. These and a subsample of men with a normal aorta were followed up 6 months post-screening. All men completed a pre-screening questionnaire including the Medical Outcomes Short Form 36v 2 (MOSF36) and Hospital Anxiety and Depression Scale (HADS). Six months after screening all 53 men with an abnormal and 130 with a normal aorta were sent a questionnaire including MOSF36 and HADS. Baseline and 6 month scores for both MOSF36 and HADS scores were compared between the two groups and within each group. Baseline scores for both MOSF36 and HADS were not significantly different between men who were subsequently diagnosed with an abnormal aorta and those with a normal aorta. After 6 months there was no difference in HADS scores but a significant increase in the MOSF36 dimension of general health. Those with a normal aorta reported better general health, social functioning and greater freedom from bodily pain. AAA screening appears highly acceptable to men in the target age group and future research should focus on implementation, cost effectiveness and collateral benefits of AAA screening.

Regional and remote occupational therapy: A preliminary exploration of private occupational therapy practice

BACKGROUND/AIM Private providers of Medicare funded services are an integral part of the Australian primary health-care system. Evidence on private occupational therapy practice in rural and remote Australian settings is sparse. METHODS Providers of private occupational therapy services in outer regional and remote areas were surveyed regarding location and type of services provided, practice models and demographics. Descriptive statistics were used to summarise the findings. RESULTS Thirty-seven respondents completed the survey. In remote areas a number of occupational therapy services are not provided and no practices are based in very remote towns. One quarter of respondents visit at least five towns each week and one third had other paid employment. Nearly half indicated they will leave private practice within the next five years and nearly one third believed they could not sustain their practice. Medicare Chronic Disease Management was the main income source of only around half the respondents. CONCLUSIONS There is a potential market failure of private occupational therapy in rural and remote areas, impacting on people who need these services and on workforce replacement. Contributing factors include population imbalance between cities and regional/remote areas, financial implications where only face-to-face contact is paid for and low incomes and levels of health insurance in regional/remote areas. Potential strategies include addressing the lack of reimbursement for travel, enabling private providers to overcome barriers to providing student placements and recognising rural practice as a specialist field.

Addressing decreasing blood lead screening rates in young children in Broken Hill, NSW

This paper outlines the findings of a review commissioned in response to concerns about declining attendance of young children for blood lead screening in Broken Hill, NSW. A review of the literature and feedback from the local community revealed that reasons for reduced screening attendance elsewhere can be applied here, but that any proposed response should take account of local conditions.

Improving participation by Aboriginal children in blood lead screening services in Broken Hill, NSW.

UNLABELLED Lead poses a health risk to young children with detrimental effects on their intellectual development. Attendance rates for Aboriginal children at routine blood lead screening and at follow-up appointments in Broken Hill, NSW, have declined in recent years. This study sought to identify strategies to improve the participation of Aboriginal children aged 1-4 years in blood lead screening services in Broken Hill. METHODS Attendance rates during the period 2000-2010 were determined using the Broken Hill Lead Management database. From June to August 2011, Aboriginal community members, service providers and public health staff were invited to interviews and focus groups to explore barriers, enablers and suggestions for improving participation. RESULTS In 2009, 27% of Aboriginal children aged 1-4 years attended blood lead screening and 29% of these children with blood lead levels over 15 µg/dL attended follow-up appointments. Barriers to participation in lead screening services included community perceptions, reduced service capacity, socio-economic and interorganisational factors. Enablers included using a culturally acceptable model, linking lead screening with routine health checks and using the finger-prick method of testing. CONCLUSIONS The final report for the study included recommendations to improve participation rates of Aboriginal children including using social marketing, formalising collaboration between health services, supporting disadvantaged families and employing an Aboriginal Health Worker.

New South Wales and Australian Capital Territory Researcher Development Program 2005–07: modest investment, considerable outcomes

This evaluation of the Researcher Development Program (RDP) in NSW and ACT aimed to determine whether the RDP was effective in assisting novice researchers to undertake primary health care research. In mid-2008, 47 participants of the NSW and ACT RDP during 2005-07 were invited to participate in a postal survey. The survey included questions regarding previous research training and experience, outcomes during and after participation in the program, and organisational aspects of the program. Follow-up interviews were conducted with selected participants. Interview questions covered time in the program, supervision, organisational support and placement outcomes. Thirty-seven participants responded to the survey and 23 (62%) participants took part in the semi-structured interviews. Seventy-eight per cent of survey respondents felt that the RDP helped them move from novice to a more experienced researcher with effective supervision identified by participants as a key element in determining the success of the program. Many felt that time allocation was inadequate and 20% thought their capacity to maintain their workload was adversely affected by participating. Outcomes were considerable given the modest nature of the program. Notable outcomes were that most participants published their research and presented their research at a conference. Furthermore, one-fifth of survey respondents had enrolled in higher degrees. Several interviewees reported that their research led to changes in practice. Most respondents found the RDP valuable and considered that undertaking the program increased their research knowledge.

Putting the genie back in the bottle: protecting children from lead exposure in the 21st century. A report from the field.

This paper highlights progress on an important public health issue which, despite significant progress, has now stalled and is in need of renewed investment. The objective is to describe the effectiveness of efforts to reduce childhood lead exposure in Broken Hill - a historic mining town in western NSW - and what is required to further reduce exposure. Lead has no known function in the human body, and emerging evidence suggests that no level of exposure is without health effects. A 1991 blood lead survey of 1-4-year-old children identified lead exposure as a significant public health issue in Broken Hill. A major NSW Government-funded program to reduce lead exposure began in 1994, and, by 2001, blood lead levels had reduced by two-thirds. The program was then integrated into other services and funding significantly reduced; blood lead levels have remained relatively unchanged since 2005. At present, 53% of children in Broken Hill have blood lead levels above the recently released National Health and Medical Research Council draft reference value for lead. Participation in annual blood lead screening declined from 52% to 38% after project funding decreased, but recent changes have doubled participation rates. A comprehensive abatement program is required to further reduce lead exposure in this community, and further research is required into how to maintain low blood lead levels and how best to engage the community about reducing individual lead risks. Findings from such studies would be relevant to the broader Australian community.