Comparison group selection in the presence of rolling entry for health services research: Rolling entry matching.

OBJECTIVE: To demonstrate rolling entry matching (REM), a new statistical method, for comparison group selection in the context of staggered nonuniform participant entry in nonrandomized interventions. STUDY SETTING: Four Health Care Innovation Award (HCIA) interventions between 2012 and 2016. STUDY DESIGN: Center for Medicare and Medicaid Innovation HCIA participants entering these interventions over time were matched with nonparticipants who exhibited a similar pattern of health care use and expenditures during each participant's baseline period. DATA EXTRACTION METHODS: Medicare fee-for-service claims data were used to identify nonparticipating, fee-for-service beneficiaries as a potential comparison group and conduct REM. PRINCIPAL FINDINGS: Rolling entry matching achieved conventionally-accepted levels of balance on observed characteristics between participants and nonparticipants. The method overcame difficulties associated with a small number of intervention entrants. CONCLUSIONS: In nonrandomized interventions, valid inference regarding intervention effects relies on the suitability of the comparison group to act as the counterfactual case for the intervention group. When participants enter over time, comparison group selection is complicated. Rolling entry matching is a possible solution for comparison group selection in rolling entry interventions that is particularly useful with small sample sizes and merits further investigation in a variety of contexts.

In Sickness and in Prison: The Case for Removing the Medicare Exclusion for Australian Prisoners.

Many current and former prisoners experience significantly higher rates of physical and mental health problems than others in the community, and are among the most marginalised and disadvantaged people in society. This article argues that granting prison health services an exemption under s 19(2) of the Health Insurance Act 1973 Cth would make the Medicare Benefits Schedule and the Pharmaceutical Benefits Scheme-funded services available to prisoners who meet the eligibility criteria. Australian prisoners would then receive a level of care at least equivalent to that offered by community health services. Reducing health inequities that prisoners experience, particularly Indigenous prisoners, is essential for them continuing to receive health care following release and successfully reintegrating into the community. Further, granting the exemption would assist the Australian Government to meet its international human rights obligations to provide equitable health care for all Australians.

How do different definitions of night shift affect the exposure assessment of night work?

The aim is to show how different definitions affect the proportion of shifts classified as night shifts. The Danish Working Hour Database was used to calculate number of night shifts according to eight definitions. More than 98% of the total night shifts were night shifts by use of both the reference definition (at least 3 h of work between 24:00 and 05:00) and definitions using a period during the night. The overlap with definitions based on starting and ending time was less pronounced (64-71 %). The proportion of classified night shifts differs little when night shifts are based on definitions including a period during the night. Studies based on other definitions may be less comparable.

The challenges of linking health insurer claims with electronic medical records.

This article explores the challenges inherent in linking data from disparate sources-electronic medical records (EMR) and health insurer claims-and the probable benefits of doing so to evaluate several quality measures associated with diabetes. Using the business associate agreement provision of the Health Insurance Portability and Accountability Act, we were able to link health insurer claims with EMR data; however, when restricting the linked data to patients with at least one medication and one diagnosis in the evaluation year, we lost 90 percent of our linked population. Whether this loss was due to difficulties in extracting the data from site EMRs, to changes in insurer coverage over time, or to both was not discernible. Because linking EMR data to health insurer claims can produce a clinically rich longitudinal data set, assessing the completeness and quality of the data is critical to health services research and health-care quality measurements.

Trappings of technology: casting palliative care nursing as legal relations.

Community palliative care nurses in Perth have joined the throng of healthcare workers relying on personal digital assistants (PDAs) to store, access and send client information in 'real time'. This paper is guided by Heidegger's approach to technologies and Habermas' insights into the role of law in administering social welfare programs to reveal how new ethical and legal understandings regarding patient information add to nursing's professional responsibilities. This qualitative research interprets data from interviews with twenty community palliative care nurses about clients' legal rights to informational privacy and confidentiality. It explores nurses' views of their nursing responsibilities regarding clients' legal rights, liability issues, bureaucratic monitoring and enforcement procedures. It concludes that nurses and clients are construed as legal subjects entrenched in legal relations that have magnified since these nurses began using PDAs in 2005/2006.