Development and Evaluation of a Wearable Simulator System.

Background: Peer physical examination is a clinical teaching-learning approach used for decades because of the convenient sample of peers for practicing. However, this approach has limitations when learning to assess abnormalities and threatens psychologically safe learning. A wearable simulator system was designed for learning physical examination skills to minimize ethical and learning challenges. Sample: The sample consisted of fifty prelicensure nursing students and ten faculty in an upper Midwest university. Method: The wearable simulator was constructed into a vest with RFID tags and ribcage landmarks. An observational, evaluative design was used for participants to rate seven categories during a one-hour evaluation session of the wearable simulator worn by a standardized patient trained to portray an individual with pneumonia. Results: Satisfaction was rated highly among participants. More than 80% of student participants indicated the wearable simulator promotes privacy and reduces embarrassment. Conclusion: The wearable simulator system offers a promising teaching-learning alternative with scenario-specific auscultation and palpation feedback to provide a safe, repeatable, and consistent simulation experience.

Under-screened Aboriginal and Torres Strait Islander women's perspectives on cervical screening.

Aboriginal and Torres Strait Islander women have lower participation in Australia's National Cervical Screening Program than other Australian women. Under-screened (including never screened) women's voices are rarely heard in research evidence, despite being a priority group for interventions to increase cervical screening participation. This study aimed to describe under-screened Aboriginal and Torres Strait Islander women's perspectives on cervical screening. Participants were 29 under-screened (women who had either never screened, had not screened in the previous five years or had recently screened in the past three months after more than five years) Aboriginal and Torres Strait Islander women from five communities across three states/territories. Female Aboriginal and Torres Strait Islander researchers Yarned with women about why they did not participate in screening and how to improve screening. Yarning is an Indigenous qualitative research method in which relationships and trust facilitate culturally safe conversation. Transcripts were analysed thematically. The proportion of eligible women who screened within 30 days after the Yarn was calculated. We identified four themes describing how the harms outweighed the benefits of cervical screening for under-screened women. These were: 1) distress, discomfort, and trauma; 2) lack of privacy and control; 3) complicated relationships with health care providers (HCPs); and 4) pressured, insensitive, and/or culturally unsafe communication from HCPs. Under-screened women who had recently screened had maintained privacy and control through self-collection and had experienced trauma-informed and empathetic care from their HCPs. While we cannot unequivocally attribute women's subsequent participation in screening to their involvement in this study, it is notable that one third of eligible under-screened women were screened within 30 days after the Yarn. Enhancing privacy, implementing trauma-informed approaches to care and sensitivity to the clinician-client relationship dynamics could enhance women's sense of comfort in, and control over, the screening procedure. The opportunity to Yarn about cervical screening and self-collection may address these issues and support progress toward cervical cancer elimination in Australia.

The extent of violence inflicted on adolescent Aboriginal girls in the Northern Territory.

BACKGROUND: Australian Aboriginal and Torres Strait Islander women are at very high risk of violence but there is little evidence about the age at which their higher exposure to violence commences. The aim of this study was to investigate violence inflicted on Aboriginal girls during childhood and adolescence, relative to Aboriginal boys and non-Aboriginal girls. METHODS: This was a retrospective cohort study using de-identified administrative data for NT residents aged 0-17 years. This study used linked hospital and child protection data to investigate hospitalization for injury caused by assault and substantiated child maltreatment involving violence (physical and sexual abuse). RESULTS: The incidence of assault hospitalization and substantiated physical/sexual abuse was much higher for Aboriginal than non-Aboriginal adolescents but similar for girls and boys to about age ten, then increased much more for Aboriginal girls than boys. In the 14-17 age-group, assault hospitalization incidence was 125% higher for Aboriginal girls than boys but 56% lower for non-Aboriginal girls than boys. 4.6% of Aboriginal girls were hospitalized (30.9% more than once) for assault between twelfth and eighteenth birthdays, compared to 3.4% of Aboriginal boys and 0.3% of non-Aboriginal girls. The incidence of assault hospitalization during adolescence was over three times higher for Aboriginal children who had substantiated child maltreatment during childhood. CONCLUSION: The very high levels of violence suffered by Aboriginal women commence in the pre-teen years. Non-Aboriginal girls are 'protected' from the rising levels of violence that boys experience as they progress through adolescence, but Aboriginal girls are not afforded such protection.

Projected Augmented Reality (P-AR) for Enhancing Nursing Education About Pressure Injury: A Pilot Evaluation Study.

PURPOSE: To describe results of a study evaluating a Projected Augmented Reality (P-AR) system for its potential to enhance nursing education about pressure injuries. DESIGN: Pilot evaluation survey. SUBJECTS AND SETTING: The sample comprised nursing students and faculty at a school of nursing in a large, Midwestern public university. A total of 32 participants, which included 27 students (30% BSN, 44% MN, and 26% DNP students; 81% female) and 5 faculty members (80% female) participated. METHODS: The P-AR system was prototyped using commercial-off-the-shelf components and software algorithms, applied to pressure injury nursing education content. After interaction with the P-AR system, participants completed a survey evaluating the following features of the P-AR system for potential: engagement, effectiveness, usefulness, user-friendliness, and realism, and users' overall impression and satisfaction with system features. Evaluation statements used a 5-level Likert-scale; open-ended questions about what was liked, disliked, or anything else offered opportunity for comments. RESULTS: Student and faculty median evaluation scores were 5 (strongly agree or very satisfied) and 4 (agree or satisfied) for nearly all evaluation and satisfaction statements. Students' satisfaction with "realism" received a median score of 3 (neutral). The P-AR system was refined to include realistic still and animated images. CONCLUSION: The P-AR system, an innovative technology using 3-dimensional dynamic images, was applied to nursing education content about pressure injury and was evaluated as having potential to enhance pressure injury teaching and learning. Education about complex processes of pressure injury development and management may benefit from using cutting-edge simulation technologies such as P-AR.

Aboriginal and Torres Strait Islander women's views of cervical screening by self-collection: a qualitative study.

OBJECTIVE: This study aimed to describe Aboriginal and Torres Strait Islander women's views of self-collection introduced in the renewed National Cervical Screening Program. METHODS: A total of 79 Aboriginal and/or Torres Strait Islander women (50 screened in previous five years, 29 under-screened) from five clinics across three Australian states/territories participated. Topics discussed were perceptions of self-collection, the instruction card and suggestions for implementing self-collection. We employed yarning (a qualitative method), which established relationships and trust between participants and researchers to facilitate culturally safe conversations. Transcripts were analysed thematically. RESULTS: Most women were unaware of self-collection before the yarn but found it to be an acceptable way to participate in cervical screening. Women perceived self-collection would be convenient, provide a sense of control over the screening experience, and maintain privacy and comfort. The instructions were perceived to be simple and easy to follow. Women had concerns about collecting the sample correctly and the accuracy of the sample (compared to clinician-collected samples). CONCLUSIONS: Self-collection is acceptable to Aboriginal and Torres Strait Islander women. IMPLICATIONS FOR PUBLIC HEALTH: Given the inequitable burden of cervical cancer experienced by Aboriginal and Torres Strait Islander women, self-collection is likely to significantly improve participation and ultimately improve cervical cancer outcomes.

Views of wheelchair users and caregivers regarding a passive safety monitoring system for electric powered wheelchair operators with cognitive impairment.

The opinions of cognitively intact current wheelchair users and their professional caregivers were solicited to explore acceptability of the concept of a passive electric wheelchair-mounted movement monitor to track driving safety and cognitive impairment. Two focus groups of electric wheelchair users (N = 9), and two focus groups of staff caregivers (N = 8) were conducted at a congregate care facility. Participants also completed a questionnaire examining their perceptions of the concept. The results indicated most wheelchair users and staff caregivers were receptive to the idea of a passive safety monitoring system for wheelchairs to detect cognitive impairment. Three main and interrelated themes emerged regarding how the device could promote safety, how such a system might infringe upon the users' autonomy, and how and to whom the cognitive state information should be communicated. Legal, training, and marketing issues reflected similar concerns over balancing autonomy with safety issues. If successfully addressed, it appears there would be support for the device's use not only for older adults in institutional settings, but perhaps also among community living younger and older adults. A passive safety monitoring system for wheelchairs is acceptable to wheelchair users and can be successfully marketed if developers balance autonomy and safety concerns.

Access to Aboriginal Community-Controlled Primary Health Organizations Can Explain Some of the Higher Pap Test Participation Among Aboriginal and Torres Strait Islander Women in North Queensland, Australia.

BACKGROUND: Aboriginal and Torres Strait Islander Community-Controlled Health Organisations (ACCHOs) provides culturally appropriate primary care for Aboriginal and Torres Strait Islander people in Australia. The population of North Queensland has a higher proportion of Aboriginal and Torres Strait Islander people, a greater population coverage of ACCHOs, and higher cervical screening participation than the Rest of Queensland. The association between regional differences in the use of ACCHOs for cervical screening and variations in screening participation among Aboriginal and Torres Strait Islander women is currently unknown. METHODS: This is a population-based study of 1,107,233 women, aged 20-69 years who underwent cervical screening between 2013 and 2017. Of these women, 132,972 (12%) were from North Queensland, of which 9% were identified as Aboriginal and Torres Strait Islander women (2% Rest of Queensland) through linkage to hospital records. Regional differentials in screening by Aboriginal and Torres Strait Islander status were quantified using participation rate ratios (PRRs) with 95% confidence intervals (CIs) from negative binomial regression models. Logistic regression was used to identify factors associated with Aboriginal and Torres Strait Islander women being screened at ACCHOs. RESULTS: Aboriginal and Torres Strait Islander women from North Queensland (versus) Rest of Queensland had higher odds of screening at ACCHOs after adjusting for age and area-level variables. After adjustment for non-ACCHO variables, the regional differential in screening among Aboriginal and Torres Strait Islander women was significantly higher (PRR 1.28, 95% CI 1.20-1.37) than that among other Australian women [PRR = 1.11 (1.02-1.18)], but was attenuated on further adjustment for ACCHO variables, [PRR = 1.15, (1.03-1.28)] to become similar to the corresponding point estimate for other Australian women [PRR = 1.09, (1.01-1.20)]. However, the significant interaction between Aboriginal and Torres Strait Islander status and region (p < 0.001) remained, possibly reflecting the large cohort size. Screening participation increased with better access to health services for all women. CONCLUSIONS: Improving access to primary health care for Aboriginal and Torres Strait Islander women, especially through ACCHOs, may reduce existing disparities in cervical screening participation. Further gains will require greater levels of local community engagement and understanding of the experiences of screened Aboriginal and Torres Strait Islander women to inform effective interventions.

Investigating inequities in cardiovascular care and outcomes for Queensland Aboriginal and Torres Strait Islander people: protocol for a hospital-based retrospective cohort data linkage project.

INTRODUCTION: Cardiovascular disease (CVD) represents a significant burden of disease for Aboriginal and Torres Strait Islander people, a population that continues to experience a lower life expectancy than other Australians. The aim of the Better Cardiac Care Data Linkage project is to describe patient care pathways and to identify disparities in care and health outcomes between Aboriginal and Torres Strait Islander people and other Queensland residents diagnosed with CVD in the state of Queensland. METHODS: This is a population-based retrospective cohort study using linked regional, state and national health and administrative data collections to describe disparities in CVD healthcare in primary and secondary prevention settings and during hospitalisation. The CVD cohort will be identified from the Queensland Hospital Admitted Patient Data Collection for admissions that occurred between 1 July 2010 and 31 June 2016 and will include relevant International Classification of Disease codes for ischaemic heart disease, congestive heart failure, stroke, acute rheumatic fever and rheumatic heart disease. Person-level data will be linked by Data Linkage Queensland and the Australian Institute of Health and Welfare (AIHW) in accordance with ethical and public health approvals to describe the patient journey prior to, during and post the hospital admission. ANALYSIS: This project will focus largely on descriptive epidemiological measures and multivariate analysis of clinical care standards and outcomes for Aboriginal and Torres Strait Islander people compared with other Queenslanders, including identification of risk factors for suboptimal care and change over time. Variation in care pathways and patient outcomes will be compared by Indigenous status, sex, age group, remoteness of residence, year of index hospitalisation and socioeconomic status. Cox models for time-to-event data and mixed models or generalised estimating equations for longitudinal data will be used to measure change over time where temporal effects exist. ETHICS AND DISSEMINATION: Ethical approval has been granted by Human Research Ethics Committees of the Prince Charles Hospital (HREC/15/QPCH/289) and the AIHW (EO2016-1-233). The Northern Territory Department of Health and Menzies School of Health Research have also provided reciprocal ethical approval of the project (HREC 2019-3490). The deidentified results will be summarised in a report and shared with investigators, advisory groups, Queensland Health and key stakeholders. Findings will be disseminated through workshops, conferences and will be published in peer-reviewed journals.

Health care provider perspectives on cervical screening for Aboriginal and Torres Strait Islander women: a qualitative study.

OBJECTIVE: To investigate perspectives of primary health care providers (HCPs) on providing cervical screening for Aboriginal and Torres Strait Islander women, who experience a higher burden of cervical cancer than other Australian women. METHODS: Semi-structured interviews with 13 HCPs from four Australian Indigenous primary health care centres (PHCCs). Transcripts were thematically analysed. RESULTS: HCPs discussed the need to approach cervical screening with sensitivity to women's emotional and cultural needs and sustaining relationships built on trust and respect. HCPs reported challenges in promoting screening to Aboriginal and Torres Strait Islander women due to cumbersome systems, competing clinical priorities, workforce capacity limitations and specific challenges associated with implementing the renewed National Cervical Screening Program. CONCLUSIONS: In practice, HCPs experience several challenges to delivering cervical screening. Understanding HCPs' perspectives on their approach to cervical screening delivery, and the systems in which this occurs, can help to ensure that they receive adequate support and resources to deliver cervical screening to Aboriginal and Torres Strait Islander women. Implications for public health: It is important that HCPs adopt a multi-faceted, person-centred approach to cervical screening that is responsive to women's needs and that works synchronously with supportive PHCC services and systems and the National Cancer Screening Register.

Patterns of child protection service involvement by Aboriginal children associated with a higher risk of self-harm in adolescence: A retrospective population cohort study using linked administrative data.

BACKGROUND: A history of child maltreatment is known to elevate the risk of self-harm in adolescence. However, this link has not been investigated for Aboriginal children who experience a greater burden of both. OBJECTIVE: Identify patterns of involvement with child protection services by Aboriginal children associated with a higher risk of self-harm in adolescence. PARTICIPANTS AND SETTING: A cohort study was established using linked administrative records of Aboriginal children born in the Northern Territory (NT) of Australia. METHODS: Survival analysis techniques were used to determine the risk of self-harm in adolescence associated with different levels and timing of child protection involvement throughout childhood. RESULT: The relative risk of self-harm was greatest for children with substantiated maltreatment in both early and middle childhood had nine times higher risk for self-harm (aHR: 9.11, 95% CI: 3.39-24.46,p < 0.001) and six times higher for children who experienced notifications in early childhood and substantiated maltreatment in middle childhood (aHR: 6.72, 95% CI:2.16-20.90, p < 0.001). Other patterns of child protection involvement observed in middle childhood alone also conferred a higher relative risk of self-harm in adolescence. CONCLUSION: This study confirms a higher risk of self-harm in adolescence is associated with child maltreatment, especially in middle childhood. Addressing the intergenerational trauma in Aboriginal families is crucial to preventing child maltreatment and informing reforms to child protection responses that can better identify and address the culturally-specific unmet needs of Aboriginal families. This would go some way to fostering the healthy growth and development of Aboriginal children and reduce self-harm risk.

Temporal and area-level variation in prevalence of high-grade histologically confirmed cervical abnormalities among Indigenous and non-Indigenous women, Queensland, Australia, 2008-2017.

OBJECTIVE: Despite Australia's National Cervical Screening Program, Indigenous women have a disproportionately high burden of cervical cancer. We describe temporal and area-level patterns in prevalence of histologically conformed high-grade cervical abnormalities (hHGA) among cytologically screened women by Indigenous status. METHODS: This was a population-based study of 2,132,925 women, aged 20-69, who underwent cervical screening between 2008 and 2017, in Queensland, Australia. Of these, 47,136 were identified as Indigenous from linked hospital records. Overall patterns in hHGA prevalence by Indigenous status were quantified using prevalence rate ratios (PrRR) from negative binomial models. Bayesian spatial models were used to obtain smoothed prevalence estimates of hHGA across 528 small areas compared to the state average. Results are presented as maps and graphs showing the associated uncertainty of the estimates. RESULTS: Overall, screened Indigenous women had significantly higher hHGA prevalence than non-Indigenous women. However, the magnitude of the difference reduced over time (p < 0.001). Adjusted for age and area-level variables, Indigenous women had 36% higher hHGA prevalence (PrRR 1.36, 95% confidence interval [1.21-1.52]) than non-Indigenous women between 2013 and 2017. The overall effect of age decreased over time (p = 0.021). Although there was evidence of moderate spatial variation in 10-year prevalence estimates for both groups of women, the high levels of uncertainty for many estimates, particularly for Indigenous women, limited our ability to draw definitive conclusions about the spatial patterns. CONCLUSIONS: While the temporal reduction in Indigenous: non-Indigenous differential in hHGA prevalence is encouraging, further research into the key drivers of the continuing higher risk among Indigenous women is warranted.

Automated Detection of Real-World Falls: Modeled From People With Multiple Sclerosis.

Falls are a major health problem with one in three people over the age of 65 falling each year, oftentimes causing hip fractures, disability, reduced mobility, hospitalization and death. A major limitation in fall detection algorithm development is an absence of real-world falls data. Fall detection algorithms are typically trained on simulated fall data that contain a well-balanced number of examples of falls and activities of daily living. However, real-world falls occur infrequently, making them difficult to capture and causing severe data imbalance. People with multiple sclerosis (MS) fall frequently, and their risk of falling increases with disease progression. Because of their high fall incidence, people with MS provide an ideal model for studying falls. This paper describes the development of a context-aware fall detection system based on inertial sensors and time of flight sensors that is robust to imbalance, which is trained and evaluated on real-world falls in people with MS. The algorithm uses an auto-encoder that detects fall candidates using reconstruction error of accelerometer signals followed by a hyper-ensemble of balanced random forests trained using both acceleration and movement features. On a clinical dataset obtained from 25 people with MS monitored over eight weeks during free-living conditions, 54 falls were observed and our system achieved a sensitivity of 92.14%, and false-positive rate of 0.65 false alarms per day.

Spatial and temporal variations in cervical cancer screening participation among indigenous and non-indigenous women, Queensland, Australia, 2008-2017.

BACKGROUND: Cervical cancer incidence and mortality have declined in Australia since the implementation of a national cervical screening program in 1991, however, disparities in both measures between Indigenous and non-Indigenous women remain. We describe spatial and temporal changes in Pap test participation rates by Indigenous status for Queensland (Australia). Analyses were done in the context of renewed screening program in December 2017. METHODS: Population-based study 2,132,925 Queensland female residents, aged 20-69 years who underwent cervical screening from 2008 to December 2017; 47,136 were identified as Indigenous through linkage to hospital records. Bayesian spatial models were used to generate smoothed estimates of participation across 528 small areas during 2008-2012 and 2013-2017 compared to the overall state average (2008-2017). Results are presented as thematic maps and graphs showing the associated uncertainty of the estimates. RESULTS: Overall screening participation decreased over time for both Indigenous and non-Indigenous women. Strong spatial patterns were evident in five-year participation for both groups. Indigenous women had significantly lower participation than the Queensland average for ≥ 88 % of areas during both reporting periods whereas corresponding estimates were lower than average for <30 % of areas among non-Indigenous women. Disparities by Indigenous status persisted over time and remained across broader geographical groups of accessibility and area disadvantage. CONCLUSIONS: Cervical cancer burden in Australia can only be reduced through concentrated efforts on identifying and addressing key drivers of the continuing disparities in screening participation. Achieving equitable screening participation for all women especially Indigenous women requires community engagement and localised interventions.

Acute myocardial infarction incidence and survival in Aboriginal and non-Aboriginal populations: an observational study in the Northern Territory of Australia, 1992-2014.

OBJECTIVES: To examine long-term trends in acute myocardial infarction (AMI) incidence and survival among Aboriginal and non-Aboriginal people. DESIGN: Retrospective cohort study. SETTING, PARTICIPANTS: All first AMI hospital cases and deaths due to ischaemic heart disease in the Northern Territory of Australia (NT), 1992-2014. MAIN OUTCOME MEASURES: Age standardised incidence, survival and mortality. RESULTS: The upward trend in Aboriginal AMI incidence plateaued around 2007 for males and 2001 for females. AMI incidence decreased for non-Aboriginal population, consistent with the national trends. AMI incidence was higher and survival lower for males, for Aboriginal people and in older age groups. In 2014, the age standardised incidence was 881 and 579 per 100 000 for Aboriginal males and females, respectively, compared with 290 and 187 per 100 000 for non-Aboriginal counterparts. The incidence disparity between Aboriginal and non-Aboriginal population was much greater in younger than older age groups. Survival after an AMI improved over time, and more so for Aboriginal than non-Aboriginal patients, because of a decrease in prehospital deaths and improved survival of hospitalised cases. CONCLUSIONS: There was an important breakpoint in increasing trends of Aboriginal AMI incidence between 2001 and 2007. The disparity in AMI survival between the NT Aboriginal and non-Aboriginal populations reduced over time as survival improved for both populations.

Indigenous Australian women's experiences of participation in cervical screening.

Aboriginal and Torres Strait Islander (collectively, Indigenous Australian) women experience a higher burden of cervical cancer than other women. The National Cervical Screening Program (NCSP) is failing to meet the needs of Indigenous Australian women, resulting in many women not regularly participating in cervical screening. However, one third of Indigenous Australian women do participate in cervical screening. The reasons that some women in this population commence and continue to screen remain unheard but could provide insights to support women who currently do not participate. We aimed to describe Indigenous Australian women's experiences and views of participation in cervical screening by yarning (a culturally-appropriate interview technique) with 50 Indigenous Australian women aged 25-70 years who had completed cervical screening in the past five years, recruited via Primary Health Care Centres (PHCCs) from three jurisdictions. Aboriginal or Torres Strait Islander women researchers conducted the interviews. Thematic analysis identified six themes: screening as a means of staying strong and in control; overcoming fears, shame, and negative experiences of screening; needing to talk openly about screening; the value of trusting relationships with screening providers; logistical barriers; and overcoming privacy concerns for women employed at PHCCs. Despite describing screening as shameful, invasive, and uncomfortable, women perceived it as a way of staying healthy and exerting control over their health. This ultimately supported their participation and a sense of empowerment. Women valued open discussion about screening and strong relationships with health providers. We identified logistical barriers and specific barriers faced by women employed at PHCCs. This study is strengthened by a research approach that centred Indigenous Australian women's voices. Understanding the experiences of Indigenous Australian women who participate in screening will help screening providers support women to start and continue to screen regularly. Recommendations for practice are provided.

Recurrence patterns identify aggressive form of human papillomavirus-dependent vulvar cancer.

BACKGROUND: Vulvar cancer is rare and, as a result, is understudied. Treatment is predominantly surgery, irrespective of the type of vulvar cancer, and is associated with physical, emotional and sexual complications. A cluster of human papillomavirus (HPV)-dependent vulvar cancer patients was identified in Arnhem Land Northern Territory (NT), Australia, in which young Indigenous women were diagnosed at 70 times the national incidence rate. AIMS: To assess whether women from the Arnhem Land cluster differ from women with vulvar squamous cell carcinoma (VSCC) and vulvar intraepithelial neoplasia (VIN) resident elsewhere in the NT in recurrence after treatment, disease progression and mortality. MATERIALS AND METHODS: A retrospective cohort study of NT-resident women diagnosed with VIN or invasive vulvar cancer (VSCC) between 1 January 1993 and 30 June 2015 was undertaken. Time to recurrence was assessed using cumulative incidence plots and Fine and Gray competing risk regression models. Mean cumulative count was used to estimate the burden of recurrent events. RESULTS: Indigenous women from Arnhem Land experienced more recurrences after treatment than non-Indigenous women, the cancers recurred faster, and Indigenous women have worse survival at five years. CONCLUSIONS: In characterising the epidemiological features of this cluster, we have identified a particularly aggressive form of vulvar cancer. This provides a unique opportunity for elucidating the aetiopathological pathways driving vulvar cancer development that may ultimately lead to preventive and therapeutic targets for this neglected malignancy. Further, these findings have important implications for clinical practice and HPV vaccination policy in the affected population.

First-Time Grandparents' Role Satisfaction and Its Determinants.

This article focuses on satisfaction with the grandparent role at 1 and 2 years after the transition to grandparenthood. Three hundred and eighteen grandparents (male and female) were initially recruited and required to complete a well-validated self-report measure of grandparent satisfaction, together with self-report questionnaires assessing a range of characteristics which might predict role satisfaction. The main finding was that grandparent-grandchild attachment (bonding) was the most powerful predictor. Some predictors (e.g., generativity) appeared to have a direct effect on satisfaction, whereas the effect of others (e.g., grandchild temperament) appeared to be mediated via the grandparent-grandchild attachment relationship. Role satisfaction, aside from its probable relevance to grandparent wellbeing, is also likely to be of relevance to grandparents' willingness to provide childcare. The latter, besides impacting on well-being of both grandparents and parents, also powerfully influences workforce economics.

Design and Evaluation of a Non-ContactBed-Mounted Sensing Device for AutomatedIn-Home Detection of Obstructive Sleep Apnea:A Pilot Study.

We conducted a pilot study to evaluate the accuracy of a custom built non-contactpressure-sensitive device in diagnosing obstructive sleep apnea (OSA) severity as an alternative toin-laboratory polysomnography (PSG) and a Type 3 in-home sleep apnea test (HSAT). Fourteenpatients completed PSG sleep studies for one night with simultaneous recording from ourload-cell-based sensing device in the bed. Subjects subsequently installed pressure sensors in theirbed at home and recorded signals for up to four nights. Machine learning models were optimized toclassify sleep apnea severity using a standardized American Academy of Sleep Medicine (AASM)scoring of the gold standard studies as reference. On a per-night basis, our model reached a correctOSA detection rate of 82.9% (sensitivity = 88.9%, specificity = 76.5%), and OSA severity classificationaccuracy of 74.3% (61.5% and 81.8% correctly classified in-clinic and in-home tests, respectively).There was no difference in Apnea Hypopnea Index (AHI) estimation when subjects wore HSATsensors versus load cells (LCs) only (p-value = 0.62). Our in-home diagnostic system providesan unobtrusive method for detecting OSA with high sensitivity and may potentially be used forlong-term monitoring of breathing during sleep. Further research is needed to address the lowerspecificity resulting from using the highest AHI from repeated samples.

Limited progress in closing the mortality gap for Aboriginal and Torres Strait Islander Australians of the Northern Territory.

OBJECTIVES: To assess whether progress is being made towards reducing Aboriginal and Torres Strait Islander inequality in life expectancy and under-five mortality in the Northern Territory. METHODS: Life tables for five-year periods from 1966-71 to 2011-16 were calculated using standard abridged life table methods with Aboriginal and Torres Strait Islander deaths and population estimates as inputs. The latter were calculated using reverse cohort survival. RESULTS: In 2011-16, life expectancy at birth for the Aboriginal and Torres Strait Islander population was 68.2 years for females and 64.9 years for males. Limited progress in under-five mortality rates has been made in recent years. CONCLUSIONS: Although Aboriginal and Torres Strait Islander life expectancy has increased in the long run, the gap with all-Australian life expectancy has not narrowed. The gap in under-five mortality rates is much lower than it was in the 1960s and 1970s, but progress has been limited over the past decade. Implications for public health: The 'Closing the Gap' target of halving the gap in under-five mortality by 2018 will not be met in the Northern Territory, and there is no evidence yet of progress on the target to eliminate the gap in life expectancy by 2031.