Factors associated with maternal hyperglycaemia and neonatal hypoglycaemia after antenatal betamethasone administration in women with diabetes in pregnancy.

AIMS: Bespoke glycaemic control strategies following antenatal corticosteroids for women with diabetes in pregnancy (DIP) may mitigate hyperglycaemia. This study aims to identify predictive factors for the glycaemic response to betamethasone in a large cohort of women with DIP. METHODS: Evaluation of a prospective cohort study of 347 consecutive DIP pregnancies receiving two doses of 11.4 mg betamethasone 24 h apart between 2017 and 2021 and treated with the Pregnancy-IVI intravenous insulin protocol. Regression modelling identified factors associated with maternal glycaemic time-in-range (TIR) and maternal insulin requirements following betamethasone. Factors associated with neonatal hypoglycaemia (glucose <2.6 mmol/L) in infants born within 48 h of betamethasone administration (n = 144) were investigated. RESULTS: The mean maternal age was 31.9 ± 5.8 years, with gestational age at betamethasone of 33.5 ± 3.4 weeks. Gestational diabetes was present in 81% (12% type 1; 7% type 2). Pre-admission subcutaneous insulin was prescribed for 63%. On-infusion maternal glucose TIR (4.0-7.8 mmol/L) was 83% [IQR 77%-90%] and mean on-IVI glucose was 6.6 ± 0.5 mmol/L. Maternal hypoglycaemia (<3.8 mmol/L) was uncommon (0.47 h/100 on-IVI woman hours). Maternal glucose TIR was negatively associated with indicators of insulin resistance (type 2 diabetes, polycystic ovary syndrome), late-pregnancy complications (pre-eclampsia, chorioamnionitis) and the 1-h OGTT result. Intravenous insulin requirements were associated with type of diabetes, pre-eclampsia and intrauterine infection, the 1-h OGTT result and the timing of betamethasone administration. Neonatal hypoglycaemia was associated with pre-existing diabetes but not with measures of glycaemic control. CONCLUSION: An intravenous infusion protocol effectively controls maternal glucose after betamethasone. A risk-factor-based approach may allow individualisation of therapy.

Time from injury to operative intervention in traumatic intracranial hematoma: A systematic literature review and meta-analysis.

BACKGROUND: The outcomes in traumatic intracranial hematoma (TICH) have not improved significantly despite advances in trauma care. A modifiable factor in TICH management is time to operation room (TOR). TOR has become a key marker in Traumatic brain injury care despite a lack of contemporary evidence. This study aimed to determine the timing of TICH evacuation and its association with mortality and neurological outcomes. METHODS: A systematic review of PubMed, OVID MEDLINE, CINAHL, and Web of Science. Included studies reported data on adult patients with acute TICH who underwent surgical evacuation. The primary outcome was TOR and its association with mortality or functional neurological recovery. RESULTS: From 1838 articles screened, 17 were included. Eight studies reported TOR as a continuous variable, ranging between 3 and 7.1 h. Three studies found better outcomes with shorter TOR, five found no difference, and one found worse outcomes with shorter TOR. Five articles were included in meta-analysis of mortality in patients undergoing operative decompression less than or greater than 4 h from injury which found lower mortality in the >4-h group, OR = 1.53. Longitudinal regression analysis showed no difference in TOR over the 33-year span of articles included. CONCLUSION: There is limited data available on TOR in TICH, with equivocal results on the effect of timing on outcomes. TOR has not decreased over the last 4 decades. The unvalidated 4-h cut-off seems to be associated with better survival. Contemporary assessment of this potentially important performance indicator is required.

Modifiability of surgical timing in postinjury multiple organ failure patients.

BACKGROUND: Postinjury multiple organ failure (MOF) is the leading cause of late trauma deaths, with primarily non-modifiable risk factors. Timing of surgery as a potentially modifiable risk factor is frequently proposed, but has not been quantified. We aimed to compare mortality, hospital length of stay (LOS), and ICU LOS between MOF patients who had surgery that preceded MOF with modifiable timings versus those with non-modifiable timings. METHODS: Retrospective analysis of an ongoing 17-year prospective cohort study of ICU polytrauma patients at-risk of MOF. Among MOF patients (Denver score>3), we identified patients who had surgery that preceded MOF, determined whether the timing of these operation(s) were modifiable(M) or non-modifiable (non-M), and evaluated the change in physiological parameters as a result of surgery. RESULTS: Of 716 polytrauma patients at-risk of MOF, 205/716 (29%) developed MOF, and 161/205 (79%) had surgery during their ICU admission. Of the surgical MOF patients, 147/161 (91%) had one or more operation(s) that preceded MOF, and 65/161 (40%) of them had operation(s) with modifiable timings. There were no differences in age (mean (SD) 52 (19) vs 53 (21)years), injury severity score (median (IQR) 34 (26-41)vs34 (25-44)), admission physiological and resuscitation parameters, between M and non-M-patients. M patients had longer ICU LOS (median (IQR) 18 (12-28)versus 11 (8-16)days, p < 0.0001) than non-M-patients, without difference in mortality (14%vs16%, p = 0.7347), or hospital LOS (median (IQR) 32 (18-52)vs27 (17-47)days, p = 0.3418). M-patients had less fluids and transfusions intraoperatively. Surgery did not compromise patient physiology. CONCLUSION: Operations preceding MOF are common in polytrauma and seem to be safe in maintaining physiology. The margin for improvement from optimizing surgical timing is modest, contrary to historical assumptions.

Hemorrhage, Disseminated Intravascular Coagulopathy, and Thrombosis Complications Among Critically Ill Patients with COVID-19: An International COVID-19 Critical Care Consortium Study.

OBJECTIVES: To determine the prevalence and outcomes associated with hemorrhage, disseminated intravascular coagulopathy, and thrombosis (HECTOR) complications in ICU patients with COVID-19. DESIGN: Prospective, observational study. SETTING: Two hundred twenty-nine ICUs across 32 countries. PATIENTS: Adult patients (≥ 16 yr) admitted to participating ICUs for severe COVID-19 from January 1, 2020, to December 31, 2021. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: HECTOR complications occurred in 1,732 of 11,969 study eligible patients (14%). Acute thrombosis occurred in 1,249 patients (10%), including 712 (57%) with pulmonary embolism, 413 (33%) with myocardial ischemia, 93 (7.4%) with deep vein thrombosis, and 49 (3.9%) with ischemic strokes. Hemorrhagic complications were reported in 579 patients (4.8%), including 276 (48%) with gastrointestinal hemorrhage, 83 (14%) with hemorrhagic stroke, 77 (13%) with pulmonary hemorrhage, and 68 (12%) with hemorrhage associated with extracorporeal membrane oxygenation (ECMO) cannula site. Disseminated intravascular coagulation occurred in 11 patients (0.09%). Univariate analysis showed that diabetes, cardiac and kidney diseases, and ECMO use were risk factors for HECTOR. Among survivors, ICU stay was longer (median days 19 vs 12; p < 0.001) for patients with versus without HECTOR, but the hazard of ICU mortality was similar (hazard ratio [HR] 1.01; 95% CI 0.92-1.12; p = 0.784) overall, although this hazard was identified when non-ECMO patients were considered (HR 1.13; 95% CI 1.02-1.25; p = 0.015). Hemorrhagic complications were associated with an increased hazard of ICU mortality compared to patients without HECTOR complications (HR 1.26; 95% CI 1.09-1.45; p = 0.002), whereas thrombosis complications were associated with reduced hazard (HR 0.88; 95% CI 0.79-0.99, p = 0.03). CONCLUSIONS: HECTOR events are frequent complications of severe COVID-19 in ICU patients. Patients receiving ECMO are at particular risk of hemorrhagic complications. Hemorrhagic, but not thrombotic complications, are associated with increased ICU mortality.

Characterization and inhibition of inflammasome responses in severe and non-severe asthma.

BACKGROUND: Increased airway NLRP3 inflammasome-mediated IL-1ß responses may underpin severe neutrophilic asthma. However, whether increased inflammasome activation is unique to severe asthma, is a common feature of immune cells in all inflammatory types of severe asthma, and whether inflammasome activation can be therapeutically targeted in patients, remains unknown. OBJECTIVE: To investigate the activation and inhibition of inflammasome-mediated IL-1ß responses in immune cells from patients with asthma. METHODS: Peripheral blood mononuclear cells (PBMCs) were isolated from patients with non-severe (n = 59) and severe (n = 36 stable, n = 17 exacerbating) asthma and healthy subjects (n = 39). PBMCs were stimulated with nigericin or lipopolysaccharide (LPS) alone, or in combination (LPS + nigericin), with or without the NLRP3 inhibitor MCC950, and the effects on IL-1ß release were assessed. RESULTS: PBMCs from patients with non-severe or severe asthma produced more IL-1ß in response to nigericin than those from healthy subjects. PBMCs from patients with severe asthma released more IL-1ß in response to LPS + nigericin than those from non-severe asthma. Inflammasome-induced IL-1ß release from PBMCs from patients with severe asthma was not increased during exacerbation compared to when stable. Inflammasome-induced IL-1ß release was not different between male and female, or obese and non-obese patients and correlated with eosinophil and neutrophil numbers in the airways. MCC950 effectively suppressed LPS-, nigericin-, and LPS + nigericin-induced IL-1ß release from PBMCs from all groups. CONCLUSION: An increased ability for inflammasome priming and/or activation is a common feature of systemic immune cells in both severe and non-severe asthma, highlighting inflammasome inhibition as a universal therapy for different subtypes of disease.

Major Pelvic Ring Injuries: Fewer Transfusions Without Deaths from Bleeding During the Last Decade.

BACKGROUND: Pelvic fracture-associated bleeding can be difficult to control with historically high mortality rates. The impact of resuscitation advancements for trauma patients with unstable pelvic ring injuries is unknown. We hypothesized that the time elapsed since introduction of our protocol would be associated with decreased blood transfusion requirements. METHODS: A level 1 trauma center's prospective pelvic fracture database was reviewed from 01/01/2009-31/12/2018. All patients with unstable pelvic ring injuries initially presenting to our institution were included. Adjusted regression analysis was performed on the overall cohort and separately for patients in traumatic shock (TS). The primary outcome was 24 h packed red blood cell (PRBC) requirements. Secondary outcomes were 24 h plasma, cryoprecipitate, platelet and intravenous fluid (IVF) requirements, length of stay and mortality. RESULTS: Patients with mechanically unstable pelvic ring injuries (n = 144, median [Q1-Q3] age 44 [28-55] years, 74% male) received a median (Q1-Q3) of 0 (0-4) units PRBC within 24 h, with TS patients (n = 47, 42 [28-60] years, 74% male) receiving 6 (4-9) units PRBC. There was no decrease in 24 h PRBC requirements for the overall cohort (years; IRR = 0.91, 95% CI 0.83-1.01; p = 0.07). TS patients had decreases in 24 h PRBC (years; IRR = 0.90, 95%CI 0.84-0.96; p = 0.002), plasma (IRR = 0.92, 95%CI 0.85-0.99; p = 0.019), cryoprecipitate (IRR = 0.88, 95%CI 0.81-0.95; p = 0.001) and IVF (IRR = 0.94, 95%CI 0.90-0.98; p = 0.004). There were 5 deaths (5/144, 3.5%) with no deaths due to acute hemorrhage. CONCLUSIONS: Over this 10-year period, there was no hemorrhage-related mortality among patients presenting with pelvic fractures. Crystalloid and transfusion requirements decreased for patients presenting with traumatic shock.

Rural versus metropolitan comparison of processes of care in the community-based management of TIA and minor stroke in Australia (an analysis from the INSIST study).

OBJECTIVES: To compare processes of care and clinical outcomes of community-based management of TIAs and minor strokes (TIAMS) between rural and metropolitan Australia. DESIGN: Inception cohort study between 2012 and 2016 with 12-month follow-up after index event (sub-study of INSIST). SETTING: Hunter and Manning valley regions of New South Wales, within the referral territory of the John Hunter Hospital Acute Neurovascular Clinic (JHHANC). PARTICIPANTS: Consecutive patients of 16 participating general practices, presenting with possible TIAMS to either primary or secondary care. MAIN OUTCOME MEASURES: Processes of care (referrals, key management processes, time-based metrics) and clinical outcomes. RESULTS: Of 613 participants with possible TIAMS who completed the baseline interview, 298 were adjudicated as having TIAMS (119 from rural, 179 from metropolitan). Mean age was 72.3 years (SD, 10.7) and 127 (43%) were women. Rural participants were more likely to be managed solely by a general practitioner (GP) than metropolitan participants (34% v 20%) and less likely to be referred to a JHHANC specialist (13% v 38%) or have brain magnetic resonance imaging (MRI) [24% v 51%]. Those rural participants who were referred, also waited longer (both p < 0.001). Recurrent stroke, myocardial infarction and death at 12 months were not significantly different between rural and metropolitan participants. CONCLUSIONS: Although TIAMS prognosis in rural settings where solely GP care is common is very good, the processes of care in such areas are inferior to metropolitan. This suggests there is further scope to support rural GPs to optimise care of TIAMS patients.

Use of tricyclic antidepressants and other anticholinergic medicines by older Aboriginal Australians: association with negative health outcomes.

BACKGROUND: Aboriginal and Torres Strait Islander Australians have a relatively high prevalence of multimorbidity requiring treatment with medications. This study examines medication use and anticholinergic burden (ACB) among a cohort of older Aboriginal and Torres Strait Island people. METHOD: This cross-sectional study involving five Aboriginal communities (two in metropolitan Sydney and three on the mid-north coast of New South Wales) used a structured interview process to assess cognition, depression, and activities of daily living for a cohort of older adults (aged 60 years and over). Participants also reported on their health status, medical history, and prescription medications during the interview. ACB was calculated, and its association with adverse health outcomes including cognitive impairment, falls, hospitalization, and depressive symptoms were examined. RESULTS: Most participants (95%) were taking at least one regular medication with polypharmacy (≥5 medications) observed in 43% of participants; 12.2% had a significant ACB (≥3) with antidepressants being a major contributor. Anticholinergic medication use was associated with cognitive impairment, recent hospitalization (past 12 months), and depressive symptoms. After controlling for age, sex, and comorbidity, only the presence of depressive symptoms remained significantly associated with the use of anticholinergic medication (odds ratio 2.86; 95% confidence interval 1.48-5.51). CONCLUSIONS: Clinically significant ACB was common in older Aboriginal Australians and was largely attributable to inappropriate use of tricyclic antidepressants. Greater awareness of medication-related risk factors among both health care professionals and Aboriginal communities can play an important role in improving health and quality of life outcomes.

Utility estimations of health states of older Australian women with atrial fibrillation using SF-6D.

PURPOSE: To estimate SF-6D utility scores for older women with atrial fibrillation (AF); calculate and compare mean utility scores for women with AF with various demographic, health behaviours, and clinical characteristics; and develop a multivariable regression model to determine factors associated with SF-6D utility scores. METHODS: This study evaluated N = 1432 women diagnosed with AF from 2000 to 2015 of the old cohort (born 1921-26) of the Australian Longitudinal Study on Women's Health (ALSWH) who remained alive for at least 12 months post first recorded AF diagnosis. Self-reported data on demographics, health behaviours, health conditions, and SF-36 were obtained from the ALSWH surveys, corresponding to within three years of the date of the first record of AF diagnosis. Linked Pharmaceutical Benefits Scheme (PBS) data determined the use of oral anticoagulants and comorbid conditions, included in CHA2DS2-VA (Congestive heart failure, Hypertension, Age ≥ 75 years, Diabetes, Stroke or TIA, Vascular disease and Age 65-74 years) score calculation, were assessed using state-based hospital admissions data. Utility scores were calculated for every woman from their SF-36 responses using the SF-6D algorithm with Australian population norms. Mean utility scores were then calculated for women with various demographic, health behaviours, and clinical characteristics. Ordinary Least Square (OLS) regression modelling was performed to determine factors associated with these utility scores. Two different scenarios were used for the analysis: (1) complete-case, for women with complete data on all the SF-36 items required to estimate SF-6D (N = 584 women), and (2) Multiple Imputation (MI) for missing data, applied to missing values on SF-36 items (N = 1432 women). MI scenario was included to gauge the potential bias when using complete data only. RESULTS: The mean health utility was estimated to be 0.638 ± 0.119 for the complete dataset and 0.642 ± 0.120 for the dataset where missing values were handled using MI. Using the MI technique, living in regional and remote areas ([Formula: see text]) and the use of oral anticoagulants ([Formula: see text] were positively associated with health utility compared to living in major cities and no use of anticoagulants, respectively. Difficulty to manage on available income [Formula: see text], no/low physical activity [Formula: see text], disability [Formula: see text], history of stroke ([Formula: see text] and history of arthritis [Formula: see text] were negatively associated with health utility. CONCLUSION: This study presents health utility estimates for older women with AF. These estimates can be used in future clinical and economic research. The study also highlights better health utilities for women living in regional and remote areas, which requires further exploration.

Effect of Cytisine vs Varenicline on Smoking Cessation: A Randomized Clinical Trial.

Importance: Cytisine is more effective than placebo and nicotine replacement therapy for smoking cessation. However, cytisine has not been tested against the most effective smoking cessation medication, varenicline, which is associated with adverse events known to lead to discontinuation of therapy. Objective: To examine whether standard cytisine treatment (25 days) was at least as effective as standard varenicline treatment (84 days) for smoking cessation. Design, Setting, and Participants: This noninferiority, open-label randomized clinical trial with allocation concealment and blinded outcome assessment was undertaken in Australia from November 2017 through May 2019; follow-up was completed in January 2020. A total of 1452 Australian adult daily smokers willing to make a quit attempt were included. Data collection was conducted primarily by computer-assisted telephone interview, but there was an in-person visit to validate the primary outcome. Interventions: Treatments were provided in accordance with the manufacturers' recommended dosage: cytisine (n = 725), 1.5-mg capsules taken 6 times daily initially then gradually reduced over the 25-day course; varenicline (n = 727), 0.5-mg tablets titrated to 1 mg twice daily for 84 days (12 weeks). All participants were offered referral to standard telephone behavioral support. Main Outcomes and Measures: The primary outcome was 6-month continuous abstinence verified using a carbon monoxide breath test at 7-month follow-up. The noninferiority margin was set at 5% and the 1-sided significance threshold was set at .025. Results: Among 1452 participants who were randomized (mean [SD] age, 42.9 [12.7] years; 742 [51.1%] women), 1108 (76.3%) completed the trial. Verified 6-month continuous abstinence rates were 11.7% for the cytisine group and 13.3% for the varenicline group (risk difference, -1.62% [1-sided 97.5% CI, -5.02% to ∞]; P = .03 for noninferiority). Self-reported adverse events occurred less frequently in the cytisine group (997 events among 482 participants) compared with the varenicline group (1206 events among 510 participants) and the incident rate ratio was 0.88 (95% CI, 0.81 to 0.95; P = .002). Conclusions and Relevance: Among daily smokers willing to quit, cytisine treatment for 25 days, compared with varenicline treatment for 84 days, failed to demonstrate noninferiority regarding smoking cessation. Trial Registration: anzctr.org.au Identifier: ACTRN12616001654448.

Time-efficient intervention to improve older adolescents' cardiorespiratory fitness: findings from the 'Burn 2 Learn' cluster randomised controlled trial.

BACKGROUND: Cardiorespiratory fitness (CRF) is an important marker of current and future health status. The primary aim of our study was to evaluate the impact of a time-efficient school-based intervention on older adolescents' CRF. METHODS: Two-arm cluster randomised controlled trial conducted in two cohorts (February 2018 to February 2019 and February 2019 to February 2020) in New South Wales, Australia. Participants (N=670, 44.6% women, 16.0±0.43 years) from 20 secondary schools: 10 schools (337 participants) were randomised to the Burn 2 Learn (B2L) intervention and 10 schools (333 participants) to the control. Teachers in schools allocated to the B2L intervention were provided with training, resources, and support to facilitate the delivery of high-intensity interval training (HIIT) activity breaks during curriculum time. Teachers and students in the control group continued their usual practice. The primary outcome was CRF (20 m multi-stage fitness test). Secondary outcomes were muscular fitness, physical activity, hair cortisol concentrations, mental health and cognitive function. Outcomes were assessed at baseline, 6 months (primary end-point) and 12 months. Effects were estimated using mixed models accounting for clustering. RESULTS: We observed a group-by-time effect for CRF (difference=4.1 laps, 95% CI 1.8 to 6.4) at the primary end-point (6 months), but not at 12 months. At 6 months, group-by-time effects were found for muscular fitness, steps during school hours and cortisol. CONCLUSIONS: Implementing HIIT during curricular time improved adolescents' CRF and several secondary outcomes. Our findings suggest B2L is unlikely to be an effective approach unless teachers embed sessions within the school day. TRIAL REGISTRATION NUMBER: Australian New Zealand Clinical Trials Registry (ACTRN12618000293268).

Randomized Controlled Trial of a Healthy Lifestyle Intervention Among Smokers With Psychotic Disorders.

INTRODUCTION: People with severe mental disorders typically experience a range of health problems; consequently, interventions addressing multiple health behaviors may provide an efficient way to tackle this major public health issue. This two-arm randomized controlled trial among people with psychotic disorders examined the efficacy of nicotine replacement therapy (NRT) plus either a face-to-face or predominantly telephone delivered intervention for smoking cessation and cardiovascular disease (CVD) risk reduction. METHODS: Following baseline assessment and completion of a common, individually delivered 90-minute face-to-face intervention, participants (n = 235) were randomized to receive NRT plus: (1) a "Healthy Lifestyles" intervention for smoking cessation and CVD risk behaviors or (2) a predominantly telephone-based intervention (designed to control for NRT provision, session frequency, and other monitoring activities). Research assistants blind to treatment allocation performed assessments at 15 weeks (mid-intervention) and 12 months after baseline. RESULTS: There were no significant differences between intervention conditions in CVD risk or smoking outcomes at 15 weeks or 12 months, with improvements in both conditions (eg, 12 months: 6.4% confirmed point prevalence abstinence rate; 17% experiencing a 50% or greater smoking reduction; mean reduction of 8.6 cigarettes per day; mean improvement in functioning of 9.8 points). CONCLUSIONS: The health disparity experienced by people with psychotic disorders is high. Face-to-face Healthy Lifestyle interventions appear to be feasible and somewhat effective. However, given the accessibility of telephone delivered interventions, potentially combined with lower cost, further studies are needed to evaluate telephone delivered smoking cessation and lifestyle interventions for people with psychotic disorders.

Long-term effects of lifetime trauma exposure in a rural community sample.

BACKGROUND: This study examines the long-term outcomes of lifetime trauma exposure, including factors that contribute to the development of PTSD, in a sample of rural adults. METHODS: In 623 rural community residents, lifetime trauma exposure, PTSD, other psychiatric disorders and lifetime suicidal ideation were assessed using the World Mental Health Composite International Diagnostic Interview. Logistic regressions were used to examine relationships between potentially traumatic events (PTEs) and lifetime PTSD and other diagnoses. RESULTS: 78.2% of participants reported at least on PTE. Rates were broadly comparable with Australian national data: the most commonly endorsed events were unexpected death of a loved one (43.7%); witnessing injury or death (26.3%); and life-threatening accident (19.3%). While the mean age of the sample was 55 years, the mean age of first trauma exposure was 19 years. The estimated lifetime rate of PTSD was 16.0%. Events with the strongest association with PTSD were physical assault and unexpected death of a loved one. Current functioning was lowest among those with current PTSD, with this group reporting elevated psychological distress, higher mental health service use, a greater number of comorbidities, and lower perceived social support. Respondents with a past PTE but no PTSD history were generally similar in terms of their current wellbeing to those with no lifetime PTE. CONCLUSIONS: PTEs may have diverse psychological and social consequences beyond the development of PTSD. Ensuring that adequate support services are available in rural areas, particularly in the period immediately following a PTE, may reduce the long-term impact of traumatic events.

Determinants of suicidal ideation and suicide attempts: parallel cross-sectional analyses examining geographical location.

BACKGROUND: Suicide death rates in Australia are higher in rural than urban communities however the contributors to this difference remain unclear. Geographical differences in suicidal ideation and attempts were explored using two datasets encompassing urban and rural community residents to examine associations between socioeconomic, demographic and mental health factors. Differing patterns of association between psychiatric disorder and suicidal ideation and attempts as geographical remoteness increased were investigated. METHODS: Parallel cross-sectional analyses were undertaken using data from the 2007 National Survey of Mental Health and Wellbeing (2007-NSMHWB, n = 8,463), under-representative of remote and very remote residents, and selected participants from the Australian Rural Mental Health Study (ARMHS, n = 634), over-representative of remote and very remote residents. Uniform measures of suicidal ideation and attempts and mental disorder using the World Mental Health Composite International Diagnostic Interview (WMH-CIDI-3.0) were used in both datasets. Geographic region was classified into major cities, inner regional and other. A series of logistic regressions were undertaken for the outcomes of 12-month and lifetime suicidal ideation and lifetime suicide attempts, adjusting for age, gender and psychological distress. A sub-analysis of the ARMHS sample was undertaken with additional variables not available in the 2007-NSMHWB dataset. RESULTS: Rates and determinants of suicidal ideation and suicide attempts across geographical region were similar. Psychiatric disorder was the main determinant of 12-month and lifetime suicidal ideation and lifetime suicide attempts across all geographical regions. For lifetime suicidal ideation and attempts, marital status, employment status, perceived financial adversity and mental health service use were also important determinants. In the ARMHS sub-analysis, higher optimism and better perceived infrastructure and service accessibility tended to be associated with a lower likelihood of lifetime suicidal ideation, when age, gender, psychological distress, marital status and mental health service use were taken into account. CONCLUSIONS: Rates and determinants of suicidal ideation and attempts did not differ according to geographical location. Psychiatric disorder, current distress, employment and financial adversity remain important factors associated with suicidal ideation and attempts across all regions in Australia. Regional characteristics that influence availability of services and lower personal optimism may also be associated with suicidal ideation in rural communities.

Self-reported contacts for mental health problems by rural residents: predicted service needs, facilitators and barriers.

BACKGROUND: Rural and remote Australians face a range of barriers to mental health care, potentially limiting the extent to which current services and support networks may provide assistance. This paper examines self-reported mental health problems and contacts during the last 12 months, and explores cross-sectional associations between potential facilitators/barriers and professional and non-professional help-seeking, while taking into account expected associations with socio-demographic and health-related factors. METHODS: During the 3-year follow-up of the Australian Rural Mental Health Study (ARMHS) a self-report survey was completed by adult rural residents (N = 1,231; 61% female; 77% married; 22% remote location; mean age = 59 years), which examined socio-demographic characteristics, current health status factors, predicted service needs, self-reported professional and non-professional contacts for mental health problems in the last 12 months, other aspects of help-seeking, and perceived barriers. RESULTS: Professional contacts for mental health problems were reported by 18% of the sample (including 14% reporting General Practitioner contacts), while non-professional contacts were reported by 16% (including 14% reporting discussions with family/friends). Perceived barriers to health care fell under the domains of structural (e.g., costs, distance), attitudinal (e.g., stigma concerns, confidentiality), and time commitments. Participants with 12-month mental health problems who reported their needs as met had the highest levels of service use. Hierarchical logistic regressions revealed a dose-response relationship between the level of predicted need and the likelihood of reporting professional and non-professional contacts, together with associations with socio-demographic characteristics (e.g., gender, relationships, and financial circumstances), suicidal ideation, and attitudinal factors, but not geographical remoteness. CONCLUSIONS: Rates of self-reported mental health problems were consistent with baseline findings, including higher rural contact rates with General Practitioners. Structural barriers displayed mixed associations with help-seeking, while attitudinal barriers were consistently associated with lower service contacts. Developing appropriate interventions that address perceptions of mental illness and attitudes towards help-seeking is likely to be vital in optimising treatment access and mental health outcomes in rural areas.

Traumatic rhabdomyolysis: rare but morbid, potentially lethal, and inconsistently monitored.

PURPOSE: Although traumatic rhabdomyolysis (TR) is shown to be associated with acute kidney injury (AKI), there are no large prospective epidemiological studies, interventional trials, official guidelines outlining the appropriate investigation, monitoring, and treatment on this poorly understood condition. We aimed to establish the contemporary epidemiology and describe current practices for TR to power future higher quality studies. We hypothesised that investigation and monitoring occur in an ad hoc fashion. MATERIAL AND METHODS: We conducted a 1-year retrospective cohort study of all patients > 16 years of age, with an ISS > 12 and, admitted to a level 1 trauma centre. Demographics, initial vital signs, admission laboratory values, and daily creatinine kinase (CK) values were collected. The primary outcome was TR (defined by CK > 5000 IU), secondary outcomes included AKI (KDIGO criteria), mortality, multiple organ failure, length of stay, and need for renal replacement therapy (RRT). RESULTS: 586 patients met inclusion criteria and 15 patients (2.56%) developed TR. CK testing occurred in 78 (13.1%) patients with 29 (37.7%) of these having values followed until downtrending. AKI occurred in 63 (10.8%) patients within the entire study population. Among those with TR, nine (60%) patients developed AKI. Patients with TR had higher ISS (median 29 vs 18) and mortality (26.7% vs 8.9%). DISCUSSION: Whilst TR appears rare without liberal screening, it is strongly associated with AKI. Given the poor outcomes, standardised monitoring, and liberal testing of CK could be justified in trauma patients with higher injury severity. This epidemiological data can help to define study populations and power future multicentre prospective studies on this infrequent yet morbid condition.

Time to traumatic intracranial hematoma evacuation: contemporary standard and room for improvement.

PURPOSE: Traumatic intracranial hematoma (TICH) is a neurosurgical emergency with high mortality and morbidity. The time to operative decompression is a modifiable but inconsistently reported risk factor for TICH patients? OUTCOMES: We aimed to provide contemporary time to evacuation data and long-term trends in timing of TICH evacuation in a trauma system. METHODS: A 13-year retrospective cohort study ending in 2021 at a trauma system with one level-1 trauma center included all patients undergoing urgent craniotomy or craniectomy for evacuation of TICH. Demographics, injury severity and key timeframes of care were collected. Subgroups analyzed were polytrauma versus isolated head injury, direct admissions versus transfers and those who survived versus those who died. Linear regression of times from injury to operating room was performed. RESULTS: Seventy-eight TICH patients (Age: 35 (22-56); 58 (74%) males; ISS: 25(25-41); AIS head: 5 (4-5); mortality: 21 (27%) patients) were identified. Initial GCS was 8 (3.25-14) which decreased to 3 (3-7) by arrival in the trauma center. There were 46 (59%) patients intubated prior to arrival. Median time from injury to operation was 4.88 (3.63-6.80) hours. Linear regression of injury to OR showed increasing times to operative intervention for direct admissions to the trauma center over the study period (p=0.04). There was no associated change in mortality or Glasgow outcome score over the same time. CONCLUSION: This contemporary data shows timing from injury to evacuation is approaching 5 hours. Over the 13-year study period the time to operative intervention significantly increased for direct admissions. This study will guide our institutions response to TICH presentations in the future. Other trauma systems should critically appraise their results with the same reporting standard.

Long-term functional outcomes in polytrauma: a fundamentally new approach is needed in prediction.

PURPOSE: Modern trauma care has reduced mortality but poor long-term outcomes with low follow-up rates are common with limited recommendations for improvements. The aim of this study was to describe the impact of severe injury on the health-related quality of life, specifically characterise the non-responder population and to identify modifiable predictors of poorer outcomes. METHODS: Five-year (2012-2016) prospective cohort study was performed at a level 1 trauma centre. Baseline Short-Form Health Survey (SF36) was collected at admission, and at 6 and 12 months postinjury together with demographics, injury mechanism and severity, psychosocial wellbeing, and return to work capacity. RESULTS: Of the 306 consecutive patients [age 52 ± 17 years, male 72%, ISS 21 (17, 29), mortality 5%], 195 (64%) completed questionnaires at baseline, and at 12 months. Preinjury physical health scores were above the general population (53.1 vs. 50.3, p < 0.001) and mental health component was consistent with the population norms (51.7 vs. 52.9, p = 0.065). One year following injury, both physical health (13.2, 95% CI 14.8, 11.6) and mental health scores (6.0, 95% CI 8.1, 3.8) were significantly below age- and sex-adjusted preinjury baselines. Non-responders had similar ISS but with a lower admission GCS, and were more likely to be younger, and without comorbidities, employment, or university education. CONCLUSION: Contrary to their better than population norm preinjury health status, polytrauma patients remain functionally impaired at least 1 year after injury. The identified high risk for non-responding group needs more focused efforts for follow-up. A fundamentally different approach is required in polytrauma research which identify modifiable predictors of poor long-term outcomes.