Tracking the 3-year trajectory of referrals to an early psychosis intervention service.

AIM: To review the baseline and clinical characteristics of patients referred to a New Zealand Early Psychosis Intervention (EPI) service across a 4-year timeframe. METHOD: We compared two cohorts, and identified variables associated with being accepted or declined, and reasons for decline, by an EPI service between 2013 and 2017. RESULTS: There were 576 people with suspected psychosis referred to the EPI service for assessment: 300 (52%) were accepted, 221 (38%) declined and 55 (10%) were not processed. Reasons for being declined by EPI services were a long duration of psychosis (DUP, 48%) and no evidence of psychosis (47%). There were no significant differences between the accepted and declined group in Emergency Department presentations for self-harm or suicide attempts and acute admissions to a psychiatric inpatient unit over the 3-year follow-up period. CONCLUSION: To optimise the identification of true positive cases, EPI services require clear entry criteria. Replicating this study in other EPI services with different entry criteria may provide evidence to develop a more uniform screening process. Improved outcomes may be enhanced by measuring effectiveness and liaising with other EPI services.

Risk and Protective Factors of Self-harm and Suicidality in Adolescents: An Umbrella Review with Meta-Analysis.

Suicide remains the second most common cause of death in young people aged 10-24 years and is a growing concern globally. The literature reports a vast number of factors that can predispose an adolescent to suicidality at an individual, relational, community, or societal level. There is limited high-level research identifying and understanding these risk and protective factors of adolescent suicidality. The present study used an umbrella review and meta-analysis to synthesize evidence from the review literature in the past 20 years on risk and protective factors of self-harm and suicidality (behavior and ideation) in adolescents. The umbrella review included 33 quantitative reviews with 1149 individual studies on suicidality and self-harm. Based on the data synthesis, it compared the public health impact of exposure on the population of the identified exposure. Bullying victimization was the most attributed environmental exposure for suicidality. The other identified significant school and individual factors were sleeping disturbance, school absenteeism, and exposure to antidepressants. Several significant vulnerable young populations were identified with significantly higher prevalence of suicidality, including lesbian, gay, bisexual, transgender, queer (or questioning) youth and those with mental health disorders, problem behaviors, previous suicidality, self-harm, and gender (female). A person-centered approach emphasizing connectedness and bully-free school environments should be a priority focus for schools, health professionals, and public health policymakers.

Environmental Influences on the Behavioural and Emotional Outcomes of Children: A Network Analysis.

BACKGROUND: Intellectual developmental disorders are a serious source of health morbidity with negative consequences for adults as well as children. However, there is limited evidence on the environmental, trace element, behavioural, and emotional outcomes in children. Here, we investigated whether there is any association between child behaviour and emotional outcomes and micronutrients using network analysis. METHODS: A cross-sectional study was conducted in 9-year-old children within a Pacific Island Families study birth cohort. Elemental concentration was determined in children's toenails after acid digestion and analysed using inductively coupled plasma mass spectrometry. We used network analysis to identify closely associated trace elements and tested the directions and strength of these trace elements. MANCOVA were used to identify the significant associations between individual elements and the behavioural/emotional function of the children using the children behaviour checklist (CBCL). At the final step, quantile regression analysis was used to assess and quantify the identified associations between CBCL function scores and manganese, adjusted by sex, ethnicity, and standardized BMI. RESULTS: Three major nutrient networks were identified. In the Mn network, Mn was strongly positively associated with Al (0.63) and Fe (r = 0.65) and moderately associated with Pb (r = 0.45) and Sb (r = 0.42). Al was also strongly associated with Fe (r = 0.9). Children in the second or third clinical group, with an elevated externalized CBCL score, had a much higher mean and median level of Mn as compared to the normal range group. The aggression score was significantly associated with Mn concentration and sex. Higher Mn concentrations were associated with a higher aggression score. A 1 ug/g unit increase in Mn was associated with a 2.44-fold increase (95% confidence interval: 1.55-4.21) in aggression score, and boys had higher median aggression score than girls (difference: 1.7, 95% CI: 0.9-2.8). Attention and rule breaking scores were both significantly associated with Mn concentration. Higher Mn concentrations were associated with higher attention behaviour problem and rule breaking scores. A 1 ug/g unit increase in Mn was found to be associated with a 1.80-fold increase (95% confidence interval: 1.37-2.82) in attention score, and a 1.46-fold increase (95% confidence interval: 1.01-1.74) in the rule breaking score. Thought score was not significantly associated with Mn concentration (p = 0.13) but was significantly lower in boys (p = 0.004). CONCLUSIONS: Exceeding Mn levels is potentially toxic and has been identified to be associated with worse externalized children's behavioural health and emotional well-being. Future studies are necessary to find the exposure paths so that advice shall be provided to family and care providers in public health and environmental protection.

A Secondary-Primary Mental Health Integrated Care Model for Communities with Diverse Population and Complex Health Needs - a Case Study with Health Care Utilization Evaluation.

Integrated care is expected to improve patient experience, patient outcomes and assist with the increasing demand on health services from those with long term conditions including mental disorder. Few studies have evaluated health care utilization as a consequence of increased integration of mental health care. This study considers the factors known to influence secondary health service utilization and investigated the impact of a locality based mental health integrated model of care (ILoC) providing specialist consultation and liaison advice to primary care, to support early diagnosis and treatment. Using existing hospital databases, the study-cohort was identified (service users supported by ILoC, and then referred within 6 months to specialist mental health services (MHS) care between 2017- 2018) and compared on health services utilization with a matched-cohort (without ILoC support before referral to specialist services). The length-of-care in the non-acute MHS was 71% shorter for the ILoC study-cohort, and differences increased in the subgroup taking antidepressants. The ILoC study-cohort was less likely to be admitted to acute MHS on first referral post ILoC intervention and had a 25% lower relative risk of acute MHS admissions at any time in follow-up. There was no difference in the average MHS inpatient length-of-stay. The risk of general hospital acute inpatient admission was marginally higher in the ILoC study-cohort. Conclusions: ILoC appears to shorten non-acute length-of-specialist-care and reduce acute mental health admission. The study provides a first step in understanding the clinical characteristics and specialist services health-care utilization of patients supported by an integrated mental care approach.

Sputum procalcitonin: a potential biomarker in stable bronchiectasis.

Sputum procalcitonin is elevated in exacerbations of bronchiectasis. The primary aim of this study was to investigate whether sputum procalcitonin levels are higher in patients with stable bronchiectasis than in healthy controls. We also assessed differences in procalcitonin levels in spontaneously expectorated and induced sputum samples and their repeatability 1 week later. Participants included were aged over 18 years and either had radiologically confirmed bronchiectasis or were healthy controls. Patients with bronchiectasis were clinically stable for at least 6 weeks and had spontaneous and induced sputum collected at visit 1 and again 7 days later. Only induced sputum samples were collected from healthy controls during visit 1. Sputum procalcitonin concentrations in sputum were measured. In total, 30 patients with bronchiectasis and 15 healthy controls were enrolled in this observational study. In the pooled data from visit 1 and 2, the geometric mean procalcitonin level in induced sputum was significantly higher in the bronchiectasis group than in the healthy control group (1.5 ng·mL-1, 95% CI 1.0-2.1 ng·mL-1 versus 0.4 ng·mL-1, 95% CI 0.2-0.9 ng·mL-1; mean ratio 3.6, 95% CI 1.5-8.6; p=0.006). Mean procalcitonin level was higher in spontaneous sputum than in induced sputum at visit 1 (1.8 ng·mL-1, 95% CI 1.2-2.7 ng·mL-1 versus 1.1 ng·mL-1, 95% CI 0.7-1.8 ng·mL-1) and visit 2 (1.5 ng·mL-1, 95% CI 1.0-2.5 ng·mL-1 versus 1.2 ng·mL-1, 95% CI 0.8-1.6 ng·mL-1; p=0.001). Repeating spontaneous and induced sputum procalcitonin levels 1 week later produced similar concentrations (p=0.29, intraclass correlation coefficient (ICC)=0.76 and p=0.72, ICC=0.70, respectively). Sputum procalcitonin is increased in patients with stable bronchiectasis and has potential as a biomarker of airway inflammation and infection in bronchiectasis.

Evaluating and improving current risk prediction tools in emergency laparotomy.

PURPOSE: Emergency laparotomy (EL) encompasses a high-risk group of operations, which are increasingly performed on a heterogeneous population of patients, making preoperative risk assessment potentially difficult. The UK National Emergency Laparotomy Audit (NELA) recently produced a risk predictive tool for EL that has not yet been externally validated. We aimed to externally validate and potentially improve the NELA tool for mortality prediction after EL. METHODOLOGY: We reviewed computer and paper records of EL patients from May 2012 to June 2017 at Middlemore Hospital (New Zealand). The inclusion criteria mirrored the UK NELA. We examined the NELA, Portsmouth Physiological and Operative Severity Score for the enUmeration of Mortality (P-POSSUM), Acute Physiology and Chronic Health Evaluation II (APACHE-II), and American College of Surgeons National Surgical Quality Improvement Programs risk predictive tools for 30-day mortality. The Hosmer-Lemeshow test was used to assess calibration, and the c statistic, to evaluate discrimination (accuracy) of the tools. We added the modified frailty index (mFI) and nutrition to improve the accuracy of risk predictive tools. RESULTS: A total of 758 patients met the inclusion criteria, with an observed 30-day mortality of 7.9%. The NELA was the only well calibrated tool, with predicted 30-day mortality of 7.4% (p = 0.22). When combined with mFI and nutritional status, the c statistic for NELA improved from 0.83 to 0.88. American College of Surgeons National Surgical Quality Improvement Programs, APACHE-II, and P-POSSUM had lower c statistics, albeit also showing an improvement (0.84, 0.81, and 0.74, respectively). CONCLUSION: We have demonstrated the NELA tool to be most predictive of mortality after EL. The NELA tool would therefore facilitate preoperative risk assessment and operative decision making most precisely in EL. Future research should consider adding mFI and nutritional status to the NELA tool. LEVEL OF EVIDENCE: Level IV; Retrospective observational cohort study.

Diagnostic accuracy of procalcitonin for the early diagnosis of anastomotic leakage after colorectal surgery: a meta-analysis.

BACKGROUND: Anastomotic leakage (AL) is a dreaded complication following colorectal surgery. Procalcitonin is one of many biomarkers studied and research has suggested that it has improved accuracy for the diagnosis of AL compared with other inflammatory biomarkers such as C-reactive protein. This meta-analysis was conducted to evaluate the accuracy of procalcitonin in the early diagnosis of AL following colorectal surgery. METHODS: MEDLINE, Embase and PubMed were searched for studies evaluating procalcitonin in the context of AL following colorectal surgery in the elective setting. The literature was reviewed using the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement. Quality of the studies was assessed using the Quality Assessment Diagnostic Accuracy Studies (QUADAS)-2 tool. Meta analyses were conducted using area under the receiver operating characteristic curves for day 3, 4 and 5 post-surgery as a diagnostic test to detect AL. RESULTS: A total of eight studies were analysed. Results showed that the highest diagnostic accuracy for procalcitonin is on day 5 post surgery. The reported optimal cut-off values ranged from 0.25 to 680 ng/mL from postoperative day 3 to 5, with reported negative predictive values ranging from 95% to 100%, and positive predictive values of up to 34%. The highest area under the receiver operating characteristic curve was 0.88 on postoperative day 5. CONCLUSION: Procalcitonin is a useful negative test for AL following elective colorectal surgery. However, as an isolated test, it is not useful in detecting AL.

Documenting psychiatric risk: more than ticking boxes.

OBJECTIVE: The purpose of this study was to audit the completion of risk assessment documentation by staff working within an acute adult mental health setting. METHOD: Fifty risk assessment forms in a district health board's acute adult mental health service were audited for completion. Clinicians provided verbal feedback on the audit results. RESULTS: Risk assessment forms were completed in 58.3% of cases. A risk formulation statement was completed in 43.8% of cases. Rates of completion varied between senior medical officers, registrars and nurses. CONCLUSION: Accurate risk formulation and safety planning are more important than ensuring all boxes are ticked on a form. Optimising the design of electronic forms may enhance access to information about historical risk.

The reliability of the Epworth Sleepiness Score in a sleep clinic population.

Despite the Epworth Sleepiness Score being widely used, there are limited studies of its reliability in clinical practice. The aim of this study was to assess the reliability of the Epworth Sleepiness Score in a clinical population. The study included patients referred to Middlemore Hospital sleep service between October and November 2014, aged over 17 years, with at least two Epworth Sleepiness Score measurements at up to three different points on the diagnostic pathway: on General Practitioner referral (GP Epworth Sleepiness Score); at overnight oximetry assessment (Oximetry Epworth Sleepiness Score); and at a specialist clinic (Specialist Epworth Sleepiness Score). No treatment was administered between scores. One-hundred and thirty-three patients were included in the study. There was a median of 91 days from GP Epworth Sleepiness Score to Oximetry Epworth Sleepiness Score, and 11 days from Oximetry Epworth Sleepiness Score to Specialist Epworth Sleepiness Score. There was poor test-retest reliability between GP Epworth Sleepiness Score and Specialist Epworth Sleepiness Score; 72.4% and 17.8% of patients had an absolute difference of more than 2 and 8 Epworth Sleepiness Score points, respectively. A Bland-Altman plot of mean Epworth Sleepiness Score versus the difference between GP Epworth Sleepiness Score and Specialist Epworth Sleepiness Score demonstrated a wide scatter of data and 95% confidence interval for the difference in Epworth Sleepiness Score for an individual patient of -14 to +10. There was similar variability between GP Epworth Sleepiness Score and Oximetry Epworth Sleepiness Score. The reliability of the Epworth Sleepiness Score is unproven in clinical settings. This study shows poor test-retest reliability of Epworth Sleepiness Score, particularly between primary and secondary care, arguing against the use of Epworth Sleepiness Score for clinical decision-making or prioritisation of services without first assessing the reliability of the Epworth Sleepiness Score in the relevant clinical population.

Clinical characteristics affecting length of stay in patients with cellulitis.

BACKGROUND: This study aimed to profile the clinical characteristics of patients presenting to Middlemore Hospital with cellulitis in order to identify factors that are associated with an increased length of stay (LOS). METHODS: Retrospective clinical data were collected for all patients aged 18 and above who were admitted with cellulitis to Middlemore Hospital General Surgical Department between 1 January and 31 March 2014. Comorbidities, laboratory results and medical conditions were included in the investigation. RESULTS: The study included 201 patients. Significant factors associated with increased LOS include type 2 diabetes mellitus (P < 0.012), obesity (P < 0.001), raised C-reactive protein (P < 0.0001), raised white cell count (P < 0.0001), raised temperature (P < 0.0001), septic shock (P < 0.003), multiorgan failure (P < 0.01), extended-spectrum beta-lactamases or methicillin-resistant Staphylococcus aureus colonization (P < 0.04) and intensive care unit admission (P < 0.0004). CONCLUSION: This single-centre, retrospective clinical study has identified several factors that are significantly associated with an increased LOS. These factors provide a basis for future studies that may facilitate identification and timely medical optimization of high-risk patients.

Do community-dwelling Maori and Pacific peoples present with dementia at a younger age and at a later stage compared with NZ Europeans?

OBJECTIVE: Ethnicity may affect presentation to clinical services in people with dementia; however, no studies have examined this in Maori or Pacific peoples in New Zealand (NZ). Our objective was to examine the routinely collected clinical data from a memory assessment service in South Auckland to examine the presentation of dementia in the major NZ ethnic groups. METHODS: A total of 360 patients presenting to a memory service with a new diagnosis of dementia were included in this study. Demographic data (age, sex, and ethnicity) and dementia sub-type and severity were analyzed. RESULTS: There were 142 NZ European (mean age: 79.2, SD 7.4), 43 Maori (mean age: 70.2, SD 7.6), 126 Pacific (mean age: 74.3, SD 7.6), and 49 other ethnicities (mean age: 78.0, SD 8.5) presenting with a new diagnosis of dementia. After adjustment for gender and dementia subtype, Maori and Pacific patients were 8.5 and 5.3 years younger than NZ European patients (P < 0.0001). Pacific peoples tended to present with more advanced dementia (OR = 1.63, 95% CI: 0.98-2.70, P = 0.06) after adjustment for age and gender. There was little difference in the subtypes of dementia between ethnic groups. CONCLUSIONS: Maori and Pacific peoples with dementia presented to an NZ memory service at a younger age than NZ Europeans, and Pacific peoples presented with more advanced dementia. A population-based epidemiological study is critical to determine whether Maori and Pacific peoples have indeed a higher risk of developing dementia at a younger age.

Review of Statistical Learning Methods in Integrated Omics Studies (An Integrated Information Science).

Integrated omics is becoming a new channel for investigating the complex molecular system in modern biological science and sets a foundation for systematic learning for precision medicine. The statistical/machine learning methods that have emerged in the past decade for integrated omics are not only innovative but also multidisciplinary with integrated knowledge in biology, medicine, statistics, machine learning, and artificial intelligence. Here, we review the nontrivial classes of learning methods from the statistical aspects and streamline these learning methods within the statistical learning framework. The intriguing findings from the review are that the methods used are generalizable to other disciplines with complex systematic structure, and the integrated omics is part of an integrated information science which has collated and integrated different types of information for inferences and decision making. We review the statistical learning methods of exploratory and supervised learning from 42 publications. We also discuss the strengths and limitations of the extended principal component analysis, cluster analysis, network analysis, and regression methods. Statistical techniques such as penalization for sparsity induction when there are fewer observations than the number of features and using Bayesian approach when there are prior knowledge to be integrated are also included in the commentary. For the completeness of the review, a table of currently available software and packages from 23 publications for omics are summarized in the appendix.

Status and interrelationship of toenail elements in Pacific children.

OBJECTIVE: Elemental deficiencies or in excess effects growth and development. Pacific population are at a disadvantage due to food insecurity as compared to New Zealand European households. This study aims to evaluate the status and interrelationship of elements (essential, non-essential and toxic) in nine-year-old Pacific children who were part of the Pacific Island Families Study living in New Zealand. MATERIALS AND METHODS: This observational study included 278 eligible nine-year-old children. Essential elements (including calcium, chromium, cobalt, copper, iodine, iron, magnesium, manganese, selenium, zinc, molybdenum), non-essential and toxic elements (arsenic, aluminum, antimony, boron, cadmium, lead, mercury, nickel,) were determined in toenails and after acid digestion, analysed using inductively coupled plasma mass spectrometry. Principal component analysis and multivariate analysis of covariance was used to identify differences in the groups of elements and the inter-correlations between elements. RESULTS: The mean calcium (868µg/g Ca), selenium (0.35µg/g Se) and zinc (129µg/g Zn) concentrations were lower while the mean cadmium (0.21µg/g Cd) lead (0.86µg/g Pb) and mercury (0.72µg/g Hg) concentrations were higher than the optimal health requirements. Ethnic differences in relation to toenail elemental concentrations were observed for aluminium and iron. Gender differences were observed for aluminium, antimony, arsenic and lead. Selenium and molybdenum were inversely associated with mercury. Manganese, zinc and calcium were positively associated. CONCLUSIONS: This research contributes to the understanding of the elemental concentrations for Pacific children by using tissue samples from toenails, which improves the completeness of sampling than other tissues and provides a longer exposure time frame. The study also reports several inter-correlations between essential, non-essential and toxic elements in Pacific Island population.

Derivation and validation of the APPEND score: an acute appendicitis clinical prediction rule.

BACKGROUND: Although many clinical prediction rules (CPRs) for appendicitis exist, none have been developed for a New Zealand population presenting with right iliac fossa (RIF) pain. The aim of this study was to derive and validate an appendicitis CPR for our population. METHOD: This is a retrospective review of all patients from December 2010 to February 2012 of at least 15 years of age presenting to the general surgery service with RIF pain. Patient data were divided into derivation and validation groups. Univariate and multiple regression analyses identified significant predictors of appendicitis which were used to construct a CPR. A retrospective validation study was then performed and the CPR was refined accordingly. Finally, the accuracy of the CPR was tested. RESULTS: The final components of the new CPR, the APPEND score, were Anorexia, migratory Pain, local Peritonism, Elevated C-reactive protein, Neutrophilia and male gender (Dude). This CPR has an area under the receiver operating characteristic curve of 0.84. The CPR can stratify patients into low, intermediate and high-risk groups which may standardize patient care and reduce the negative appendicectomy rate. CONCLUSION: A new CPR for predicting appendicitis, in patients presenting with RIF pain, has been derived and validated for use in our population. A prospective study to further evaluate its performance is required.

Comparison of four methods of endotracheal tube passage in simulated airways: There is room for improved techniques.

OBJECTIVE: Endotracheal intubation requires laryngoscopy followed by passage of the endotracheal tube (ETT). Tube passage can be difficult, but there is little evidence to support which adjunct for tube passage is most effective. METHODS: The four tube passage adjuncts tested were the naked ETT, stylet ETT, railroaded bougie and preloaded bougie. Participants completed pre- and post-test surveys identifying demographics, experience and method preference. After instruction, participants completed eight intubations on manikins with 'easy' and 'difficult' airways. RESULTS: One hundred and seventeen practitioners who were experienced emergency medicine physicians, anaesthesiologists and out-of-hospital providers completed 936 total ETT attempts. For the 'difficult' airway, the percentage first pass success (95% confidence interval [CI]) for the naked ETT was 30.8% (23.1-39.7%). This was significantly lower than the stylet ETT (95.7% [86.6-100%]), the railroaded bougie (75.2% [63.8-86.6%]), or the preloaded bougie (89.7% [79.7-99.7%]). On difficult airways, the median (interquartile range [IQR]) time-to-intubation was fastest in the stylet ETT (25.0 s [20.9-32.2 s]) with the railroaded bougie being the slowest (43.2 s [36.5-56.2 s]). Seventy-nine per cent of participants stated that they would change their practice based on participating in this study. Participants increased their preference for the preloaded bougie from 30.6% to 69.4%. CONCLUSION: The data show that tube passage with a stylet ETT or a preloaded bougie is superior in terms of higher first pass success, faster time-to-intubation and higher post-test preference. The naked ETT is clearly inferior to other methods. This research supports the recommendation to use a stylet ETT or bougie for every predicted difficult intubation.

Periprosthetic Joint Infection Is the Main Cause of Failure for Modern Knee Arthroplasty: An Analysis of 11,134 Knees.

BACKGROUND: Although large series from national joint registries may accurately reflect indications for revision TKAs, they may lack the granularity to detect the true incidence and relative importance of such indications, especially periprosthetic joint infections (PJI). QUESTIONS/PURPOSES: Using a combination of individual chart review supplemented with New Zealand Joint Registry data, we asked: (1) What is the cumulative incidence of revision TKA? (2) What are the common indications for revising a contemporary primary TKA? (3) Do revision TKA indications differ at various followup times after primary TKA? METHODS: We identified 11,134 primary TKAs performed between 2000 and 2015 in three tertiary referral hospitals. The New Zealand Joint Registry and individual patient chart review were used to identify 357 patients undergoing subsequent revision surgery or any reoperation for PJI. All clinical records, radiographs, and laboratory results were reviewed to identify the primary revision reason. The cumulative incidence of each revision reason was calculated using a competing risk estimator. RESULTS: The cumulative incidence for revision TKA at 15 years followup was 6.1% (95% CI, 5.1%-7.1%). The two most-common revision reasons at 15 years followup were PJI followed by aseptic loosening. The risk of revision or reoperation for PJI was 2.0% (95% CI, 1.7%-2.3%) and aseptic loosening was 1.2% (95% CI, 0.7%-1.6%). Approximately half of the revision TKAs secondary to PJI occurred within 2 years of the index TKA (95% CI, 0.8%-1.2%), whereas half of the revision TKAs secondary to aseptic loosening occurred 8 years after the index TKA (95% CI, 0.4%-0.7%). CONCLUSIONS: In this large cohort of patients with comprehensive followup of revision procedures, PJI was the dominant reason for failure during the first 15 years after primary TKA. Aseptic loosening became more important with longer followup. Efforts to improve outcome after primary TKA should focus on these areas, particularly prevention of PJI. LEVEL OF EVIDENCE: Level III, therapeutic study.

Definition determines weight regain outcomes after sleeve gastrectomy.

BACKGROUND: Sleeve gastrectomy (SG) is one of the most commonly undertaken bariatric procedures. Weight regain after bariatric surgery, when significant, may be associated with recurrence of diabetes and deterioration in quality of life. Furthermore, it may be more common after SG than bypass procedures. Yet the understanding of the significance of weight regain is hampered by poor reporting and no consensus statements or guidelines. OBJECTIVES: To illustrate how the lack of a standard definition significantly alters reported SG outcomes and to contribute to the discussion of how weight regain should be defined. SETTING: Counties Manukau Health, a public teaching hospital that performs over 150 bariatric procedures per year. METHODS: A retrospective cohort of SG patients followed up at 5 years was used to illustrate how the presence of multiple definitions in the literature significantly affects outcome reporting for weight regain. Post hoc analyses were used to explore the relationship between weight change and clinical outcomes. RESULTS: Applying 6 definitions of weight regain to a retrospective cohort of SG patients resulted in 6 different rates ranging from 9%-91%. Post hoc analyses revealed significant associations between weight change and the Bariatric Analysis Reporting Outcome System (BAROS) score as well as patient opinion. CONCLUSION: The nonuniform reporting of weight regain appears to significantly affect SG outcome reporting. Development of consensus statements and guidelines would ameliorate this problem. Ideally, research groups with access to large robust databases would aid in the development of any proposed weight regain definitions. In the interim, bariatric literature would benefit by all published series clearly reporting how weight regain is defined in the study population.

Burnout, quality of life, motivation, and academic achievement among medical students: A person-oriented approach.

BACKGROUND: The aim of this study was to identify burnout and quality of life profiles of medical students and determine their associations with academic motivation and achievement on progress tests using a person-oriented approach. METHODS: Medical students (n = 670) in Year 3 to Year 5 at the University of Auckland were classified into three different profiles as derived from a two-step cluster analysis using World Health Organization Quality of Life-BREF scores and Copenhagen Burnout Inventory scores. The profiles were used as independent variables to assess differences in academic motivation and achievement on progress tests using a multivariate analysis of co-variance and repeated measures analysis of co-variance methods. RESULTS: The response rate was 47%. Three clusters were obtained: Higher Burnout Lower Quality of Life (n = 62, 20%), Moderate Burnout Moderate Quality of Life (n = 131, 41%), and Lower Burnout Higher Quality of Life (n = 124, 39%). After controlling for gender and year level, Higher Burnout Lower Quality of Life students had significantly higher test anxiety (p < 0.0001) and amotivation scores (p < 0.0001); and lower intrinsic motivation (p < 0.005), self-efficacy (p < 0.001), and progress test scores (p = 0.03) compared with the other profiles. CONCLUSION: Burnout and Quality of Life profiles of medical students are associated with differences in academic motivation and achievement over time.

Systematic review and meta-analysis of first-pass success rates in emergency department intubation: Creating a benchmark for emergency airway care.

OBJECTIVE: Many EDs have begun to evaluate their airway performance. The first-pass success (FPS) rate is a commonly used marker of proficiency, and has been associated with rates of adverse events. The aim of this systematic review and meta-analysis is to quantify the ED FPS rates and summarise the rates of adverse events associated with endotracheal intubation. METHODS: A structured literature search was performed through MEDLINE and EMBASE. Research published since 2000 was included if it prospectively collected data on all patients intubated in the ED and reported the FPS rates. Data on demographics, indication, FPS rates, adverse events, proportion by RSI and proportion by emergency medicine doctors were extracted. Pooled mean FPS rates were estimated using a random effects model. RESULTS: The literature search generated 21 162 articles. Full-text review identified 16 publications for meta-analysis. This included a total of 42 081 intubations from 83 institutions, in 10 countries. The FPS rate was 84.1% (95% confidence interval [CI] 80.1-87.4] in the 'ED-All' group and 81.8% (95% CI 76.3-86.2) in the 'Trauma-Only' group. The incidence rates of commonly reported adverse events were hypoxia 6.4% (95% CI 2.5-11.9), hypotension 3.0% (95% CI 1.5-4.9), oesophageal intubation 3.5% (95% CI 2.3-4.9), greater than three attempts 0.8% (95% CI 0.4-1.4), cricothyrotomy 0.3% (95% CI 0.1-0.5) and peri-intubation cardiac arrest 0.6% (95% CI 0.2-1.0). CONCLUSION: Research published in the last 16 years shows a mean ED FPS rate of 84.1%. This represents the best available published data that can be used to benchmark emergency airway performance.