Acceptability of an Online Module Addressing Weight Bias: Perspectives and Attitudes of Undergraduate Health Students and Instructors.

Weight bias and discrimination are highly pervasive and harmful to Canadians with higher weights. Researchers and practitioners who deliver, evaluate, and advise on dietary and weight-related interventions may inadvertently perpetuate weight bias through their work; however, trainees in these fields rarely have access to weight bias education within their applied health programs. This study evaluated the acceptability of an online educational weight bias module developed for undergraduate students enrolled in health courses. The intervention included a pre-recorded 20-minute online module with prompts for reflection or discussion, a self-assessment quiz, as well as a separate module and range of resources for instructors. Overall, 211 students from applied health courses and 4 instructors completed an online survey querying the module's delivery, impact, and relevance. Students agreed that the module provided useful information (82%), was easy to understand (97%), and was the right length (75%), but reported wanting more interactivity and engagement with the content. Instructors found the module engaging and useful and expressed interest in additional resources and support for weight bias education. Future research should explore the impact of weight bias education on students' weight-related attitudes and perceptions as well as feasibility and relevance of online features such as multimedia tools.

Assessing the impact of sports and recreation facility density within school neighbourhoods on Canadian adolescents' substance use behaviours: quasi-experimental evidence from the COMPASS study, 2015-2018.

OBJECTIVES: There has been relatively little exploration to date of potential protective effects within school neighbourhoods, such as those conferred by facilities that seek to promote health with respect to substance use and related harms. This study examined how the density of sports and recreation facilities in the school neighbourhood is associated with the likelihood of binge drinking, e-cigarette use, cigarette smoking and cannabis use among Canadian secondary school students. DESIGN: Longitudinal data from the COMPASS study on Canadian youth health behaviours from 2015/2016 to 2017/2018 was linked with school neighbourhood data capturing the number of sports and recreation facilities within a 1500 m radius of schools. SETTING: Secondary schools and school neighbourhoods in Alberta, British Columbia, Ontario and Quebec who participated in the COMPASS study. PARTICIPANTS: 16 471 youth who participated in the COMPASS study over three school years (2015/2016-2017/2018). PRIMARY AND SECONDARY OUTCOME MEASURES: Binge drinking, e-cigarette use, cigarette use, cannabis use. RESULTS: Logistic regression models using generalised estimating equations identified that greater density of sports and recreation facilities within the school neighbourhood was significantly associated with lower likelihood of binge drinking and e-cigarette use but was not associated with cigarette smoking or cannabis use. CONCLUSIONS: This research can help to support evidence-informed school community-based efforts to prevent substance-related harms among youth.

Cannabis Use, Screen Time, and Internalizing Symptoms among Canadian Youth: Testing Mediation Pathways.

Background: Existing research suggests positive correlations between screen time sedentary behaviors (STSB) and substance use, including cannabis use, among youth. However, little research has examined what factors mediate these relationships.Methods: This study examined mediating pathways among STSB, internalizing symptoms (IS), and cannabis use in a linked longitudinal sample of 28 269 Canadian youth who participated in the COMPASS study over a two-year period (2017/18 to 2018/19). Structural equation modeling examined two main hypotheses cross-sectionally and over time: 1) if IS mediated associations between STSB and cannabis use frequency, and 2) if STSB mediated associations between IS and cannabis use frequency. Results: Results demonstrated significant partial mediation effects for both hypotheses. For example, indirect effects indicated that IS mediated the association between STSB and cannabis use both cross sectionally (95% CI: 0.021, 0.029) and longitudinally (95% CI: 0.006, 0.010). STSB also mediated associations between IS and cannabis use cross sectionally (95% CI: 0.015, 0.023) and longitudinally (95% CI: 0.010, 0.014). This study demonstrated that the associations between STSB, internalizing symptoms and cannabis use are complex, involving mediation in both directions.Discussion: These findings can be used to inform public health initiatives that aim to take a comprehensive approach to addressing negative health behaviors and outcomes, as it is clear that the multi-directional relationships between STSB and mental health may in-turn impact other health behaviors. Future research should continue to examine mediating factors between STSB and substance use among youth, including exploration of associations with other substances.Supplemental data for this article is available online at https://doi.org/10.1080/10826084.2021.1922455 .

Secondary School Nutrition Policy Compliance in Ontario and Alberta, Canada: A Follow-Up Study Examining Vending Machine Data from the COMPASS Study.

(1) Objective: To longitudinally assess food and beverages sold in vending machines in secondary schools (grades 9-12) participating in the COMPASS study (2015/2016 and 2018/2019) and (2) to examine if patterns and trends observed in previous years (2012/2013 to 2014/2015) are consistent with lack of policy compliance in Ontario and Alberta, Canada. (2) Methods: Policy compliance was assessed through comparing nutritional information on drink (e.g., sports drinks) and snack (e.g., chocolate bars) products in vending machines to Policy and Program Memorandum (P/PM) 150 in Ontario (required policy) and the Alberta Nutrition Guidelines for Children and Youth (recommended policy). Longitudinal results and descriptive statistics were calculated. (3) Results: Longitudinal results indicate that between Y4 (2015/2016) and Y7 (2018/2019), snack and drink vending machines remained mostly non-compliant in Ontario and Alberta, with a small proportion of Ontario drink machines changing from non-compliant to compliant. At the school level, descriptive results indicate the proportion of Ontario schools with policy-compliant snack and drink machines decreased between Y4 and Y7. Alberta schools were non-compliant for drink and snack machines. (4) Conclusions: Secondary schools continue to be non-compliant with provincial policies. School nutrition policies need to be simplified in order to make it easier for schools to be compliant. Enforcement of compliancy is also an area that deserves consideration.

Examining the association between exposure to various screen time sedentary behaviours and cannabis use among youth in the COMPASS study.

BACKGROUND: Canadian youth are among the top users of cannabis globally. The Canadian federal government identified protecting youth from cannabis-related harms as a key public health objective aligned with the legalization and strict regulation of cannabis. While there are well-established associations between screen time sedentary behaviour (STSB) and alcohol and tobacco use, the association with cannabis use is understudied. The purpose of this study is to examine the association between various types of STSBs and cannabis use in a large sample of Canadian youth. METHODS: Using cross-sectional data from 46,957 grade 9 to 12 students participating in year 5 of the COMPASS host study (2016-2017), four gender-stratified ordinal logistic regression models were used to examine how total STSB and four different types of STSBs (watching/streaming TV shows/movies, playing video games, Internet use, emailing/messaging/texting) are associated with frequency of cannabis use. RESULTS: One-quarter of participants (24.9%) reported using cannabis in past 12 months; the largest proportion of this group (37.9%) reported rare/sporadic use. Overall, participants spent an average 7.45 ( ±5.26) hours/day on STSBs. Total STSB was positively associated with more frequent cannabis use, and when separated by type, internet use and messaging were significant. Playing video games and watching TV/movies were also significantly associated with more frequent cannabis use, but only for females. CONCLUSIONS: The associations between frequency of cannabis use and various measures of STSBs suggest that screen time may be a risk factor for cannabis use among youth. This association may be mediated by youths' mental wellbeing, given emerging evidence that STSB is a risk factor for poor mental health, and the tendency for individuals to use substances as a coping mechanism. Further, the ubiquity of pro-substance use content on the internet may also contribute to increased exposure to and normalization of cannabis, further promoting its use.

Examining associations between school food environment characteristics and sugar-sweetened beverage consumption among Canadian secondary-school students in the COMPASS study.

OBJECTIVE: To examine associations between Canadian adolescents' sugar-sweetened beverage (SSB) consumption and several school food environment characteristics, and to investigate differences in these characteristics between schools in provinces with voluntary (Alberta) v. mandatory (Ontario) provincial school nutrition policies. DESIGN: We used a questionnaire to assess the number of weekdays participants consumed three SSB categories (soft drinks, sweetened coffees/teas, energy drinks) and various sociodemographic and behavioural characteristics. We examined the in-school water fountain accessibility, vending machines' contents and presence of various food outlets within schools' 1 km buffer. We developed hierarchical Poisson regression models to identify associations between student- and school-level characteristics and students' SSB outcomes. SETTING: Alberta and Ontario, Canada. SUBJECTS: Adolescents (n 41 829) from eighty-nine secondary schools. RESULTS: Compared with their Ontarian counterparts, Albertan participants had a significantly higher rate of SSB intake across all drink categories and SSB availability was significantly greater in Albertan schools' vending machines. Availability of sweetened coffees/teas in school vending machines and access to restaurants within the school's 1 km buffer were associated with increased SSB intake in three of the final models. Overall, the school food environment-level characteristics examined had a modest to negligible impact on student days of SSB intake. CONCLUSIONS: We identified that the school food environment characteristics examined here had little impact on adolescents' days of SSB consumption. While schools should adopt or maintain a comprehensive policy approach to discourage students' SSB intake, population-level interventions focusing on other contexts (e.g. home and community) are needed to complement existing school-based interventions.

Examining changes in school vending machine beverage availability and sugar-sweetened beverage intake among Canadian adolescents participating in the COMPASS study: a longitudinal assessment of provincial school nutrition policy compliance and effectiveness.

BACKGROUND: School nutrition policies can encourage restrictions in sugar-sweetened beverage (SSB) availability in school food outlets in order to discourage students' SSB intake. The main objective was to examine how beverage availability in school vending machines changes over three school years across schools in distinct school nutrition policy contexts. Secondary objectives were to examine how students' weekday SSB intake varies with time and identify longitudinal associations between beverage availability and SSB intake. METHODS: This longitudinal study used data from the COMPASS study (2013/14-2015/16), representing 7679 students from 78 Canadian secondary schools and three provincial school nutrition policy contexts (Alberta - voluntary guidelines, Ontario public - mandatory guidelines, and Ontario private schools - no guidelines). We assessed availability of 10 beverage categories in schools' vending machines via the COMPASS School Environment Application and participants' intake of three SSB varieties (soft drinks, sweetened coffees/teas, and energy drinks) via a questionnaire. Hierarchical regression models were used to examine whether: i) progression of time and policy group were associated with beverage availability; and, ii) beverage availability was associated with students' SSB intake. RESULTS: Ontario public schools were significantly less likely than the other policy groups to serve SSBs in their vending machines, with the exception of flavoured milks. Vending machine beverage availability was consistent over time. Participants' overall SSB intake remained relatively stable; reductions in soft drink intake were partially offset by increased sweetened coffee/tea consumption. Relative to Ontario public schools, attending school in Alberta was associated with more frequent energy drink intake and overall SSB intake whereas attending an Ontario private school was associated with less frequent soft drink intake, with no differences in overall SSB intake. Few beverage availability variables were significantly associated with participants' SSB intake. CONCLUSIONS: Mandatory provincial school nutrition policies were predictive of more limited SSB availability in school vending machines. SSB intake was significantly lower in Ontario public and private schools, although we did not detect a direct association between SSB consumption and availability. The findings provide support for mandatory school nutrition policies, as well as the need for comprehensive school- and broader population-level efforts to reduce SSB intake.

Food Purchasing Behaviors and Sugar-Sweetened Beverage Consumption among Canadian Secondary School Students in the COMPASS Study.

OBJECTIVES: To examine whether several food purchasing behaviors (ie, sources of meals or snacks) are associated with adolescents' sugar-sweetened beverage (SSB) consumption and whether these associations vary by province. DESIGN: Cross-sectional observational study. SETTING: Alberta and Ontario, Canada. PARTICIPANTS: Secondary school students from Alberta (n = 3,300) and Ontario (n = 37,999) participating in year 2 (2013-2014) of the Cannabis Use, Obesity, Mental Health, Physical Activity, Alcohol Use, Smoking, Sedentary Behavior (COMPASS) study. MAIN OUTCOME MEASURES: Participants' self-reported frequency of consuming 3 SSB types (soft drinks, sweetened coffees/teas, and energy drinks) in a typical week. ANALYSIS: Hierarchical Poisson regression analyses. RESULTS: Participants from Alberta had a significantly (P < .05) higher rate of consuming SSBs and purchasing meals or snacks from school food outlets compared with their Ontario counterparts. Most of the food purchasing behaviors were significantly (P < .05) and positively associated with greater rates of SSB consumption. Meal or snack purchases on weekends (vs weekdays) and from food outlets off school property (vs on school property) had a greater association with SSB consumption. Eating a home-packed lunch was protective against SSB consumption across models. CONCLUSIONS AND IMPLICATIONS: Adolescents' food purchasing behaviors have a significant impact on their propensity for SSB consumption. These data demonstrate potentially important contexts for SSB consumption and have implications for possible settings and strategies for future interventions to reduce adolescents' SSB intake.

Examining Predictors of Breakfast Skipping and Breakfast Program Use Among Secondary School Students in the COMPASS Study.

BACKGROUND: Many Canadian schools offer breakfast programs; however, students' engagement in these programs is low, while breakfast skipping is highly prevalent among youth. This study examined whether the availability of breakfast programs supports adolescents' regular breakfast eating, and identified characteristics of breakfast skippers who are not using these programs. METHODS: Data from 30,771 secondary school students from Ontario and Alberta, Canada, participating in Year 3 (2014-2015) of the COMPASS study were used for descriptive and logistic regression analyses. Participants were categorized by self-reported breakfast eating and school breakfast program use. RESULTS: Sixteen percent of participants reported using school breakfast programs. Breakfast skipping was highly prevalent among participants, regardless of their breakfast program use. Characteristics significantly associated with program use included traveling to school via public transit or a school bus, being a bullying victim, and having a high school connectedness score. A desire to lose weight and non-involvement in school sports were significantly associated with being a "breakfast skipper/nonprogram user." CONCLUSIONS: School breakfast programs do not consistently support regular breakfast eating, even among adolescents actively engaged in these programs. Future research should identify and evaluate practices to bolster participation in breakfast programs and promote regular breakfast eating among adolescents.

The school environment and sugar-sweetened beverage consumption among Guatemalan adolescents.

OBJECTIVE: The current study sought to examine Guatemalan adolescents' consumption of sugar-sweetened beverages (SSB), identify which individual-level characteristics are associated with SSB consumption and describe school characteristics that may influence students' SSB consumption. DESIGN: Within this observational pilot study, a questionnaire was used to assess students' consumption of three varieties of SSB (soft drinks, energy drinks, sweetened coffees/teas), as well as a variety of sociodemographic and behavioural characteristics. We collected built environment data to examine aspects of the school food environment. We developed Poisson regression models for each SSB variety and used descriptive analyses to characterize the sample. SETTING: Guatemala City, Guatemala. SUBJECTS: Guatemalan adolescents (n 1042) from four (two public, two private) secondary schools. RESULTS: Built environment data revealed that students from the two public schools lacked access to water fountains/coolers. The SSB industry had a presence in the schools through advertisements, sponsored food kiosks and products available for sale. Common correlates of SSB consumption included school type, sedentary behaviour, frequency of purchasing lunch in the cafeteria, and frequency of purchasing snacks from vending machines in school and off school property. CONCLUSIONS: Guatemalan adolescents frequently consume SSB, which may be encouraged by aspects of the school environment. Schools represent a viable setting for equitable population health interventions designed to reduce SSB consumption, including increasing access to clean drinking-water, reducing access to SSB, restricting SSB marketing and greater enforcement of existing food policies.

Compliance with school nutrition policies in Ontario and Alberta: An assessment of secondary school vending machine data from the COMPASS study.

OBJECTIVES: We investigated the extent to which a sample of Ontario and Alberta secondary schools are being compliant with their respective provincial nutrition policies, in terms of the food and beverages sold in vending machines. METHODS: This observational study used objective data on drinks and snacks from vending machines, collected over three years of the COMPASS study (2012/2013-2014/2015 school years). Drink (e.g., sugar-containing carbonated/non-carbonated soft drinks, sports drinks, etc.) and snack (e.g., chips, crackers, etc.) data were coded by number of units available, price, and location of vending machine(s) in the school. Univariate and bivariate analyses were undertaken using R version 3.2.3. In order to assess policy compliancy over time, nutritional information of products in vending machines was compared to nutrition standards set out in P/PM 150 in Ontario, and those set out in the Alberta Nutrition Guidelines for Children and Youth (2012) in Alberta. RESULTS: Results reveal a decline over time in the proportion of schools selling sugar-containing carbonated soft drinks (9% in 2012/2013 vs. 3% in 2014/2015), crackers (26% vs. 17%) and cake products (12% vs. 5%) in vending machines, and inconsistent changes in the proportion selling chips (53%, 67% and 65% over the three school years). Conversely, results highlight increases in the proportion of vending machines selling chocolate bars (7% vs. 13%) and cookies (21% vs. 40%) between the 2012/2013 and 2014/2015 school years. CONCLUSION: Nutritional standard policies were not adhered to in the majority of schools with respect to vending machines. There is a need for investment in formal monitoring and evaluation of school policies, and the provision of information and tools to support nutrition policy implementation.

Examining Guidelines for School-Based Breakfast Programs in Canada: A Systematic Review of the Grey Literature.

School breakfast programs are widespread and serve varying objectives regarding youth health promotion. Evidence-based guidelines for breakfast programs may be important in maximizing their effectiveness related to student outcomes, yet it is unclear what is available in Canada. A systematic review was conducted to identify and compare Canadian guidelines related to breakfast programs. Data sources included grey literature databases, customized search engines, targeted websites, and content expert consultations. Eligible guidelines met the following criteria: government and nongovernment sources at the federal and provincial/territorial levels, current version, and intended for program coordinators. Recommendations for program delivery were extracted, categorized, and mapped onto the 4 environments outlined in the ANGELO framework, and they were classified as "common" or "inconsistent" across guidelines. Fifteen sets of guidelines were included. No guidelines were available from federal or territorial governments and 4 provincial governments. There were few references to peer-reviewed literature within the guidelines and despite many common recommendations for program delivery, conflicting recommendations were also identified. Potential barriers to program participation, including a lack of consideration of allergies and other dietary restrictions, were identified. Future research should identify how guidelines are implemented and evaluate what effect their implementation has on program delivery and student outcomes.

Knowledge change associated with participation in prenatal education programs in Ontario: A cohort study.

OBJECTIVES: The primary objective was to examine how participation in prenatal programs delivered by Ontario public health units influences pregnant women's pregnancy-related knowledge. Secondary objectives were to examine the socio-demographic characteristics of women participating in these programs and assess program satisfaction. METHODS: A cohort study was conducted of 511 adult pregnant women who were registered for a prenatal program within one of seven Ontario public health units. Participants completed a pre-program survey, which examined socio-demographic and pregnancy characteristics, and baseline pregnancyrelated knowledge. After finishing the program, participants completed a post-program survey investigating pregnancy-related knowledge and program satisfaction. Pregnancy-related knowledge was assessed using the Healthy Pregnancies Knowledge Survey, which captures knowledge within three subtopic areas: healthy pregnancies, healthy lifestyles and breastfeeding. RESULTS: Participants demonstrated a significant increase in mean knowledge scores, both overall and across each subtopic area. Most participants reported that their program satisfied their questions either mostly or very well across all content areas examined. CONCLUSION: This study is the first large-scale effort to examine the ability of prenatal programs offered through Ontario public health units to influence clients' pregnancy-related knowledge. These findings contribute to the evidence base for prenatal education program planning.

Applying systematic review search methods to the grey literature: a case study examining guidelines for school-based breakfast programs in Canada.

BACKGROUND: Grey literature is an important source of information for large-scale review syntheses. However, there are many characteristics of grey literature that make it difficult to search systematically. Further, there is no 'gold standard' for rigorous systematic grey literature search methods and few resources on how to conduct this type of search. This paper describes systematic review search methods that were developed and applied to complete a case study systematic review of grey literature that examined guidelines for school-based breakfast programs in Canada. METHODS: A grey literature search plan was developed to incorporate four different searching strategies: (1) grey literature databases, (2) customized Google search engines, (3) targeted websites, and (4) consultation with contact experts. These complementary strategies were used to minimize the risk of omitting relevant sources. Since abstracts are often unavailable in grey literature documents, items' abstracts, executive summaries, or table of contents (whichever was available) were screened. Screening of publications' full-text followed. Data were extracted on the organization, year published, who they were developed by, intended audience, goal/objectives of document, sources of evidence/resources cited, meals mentioned in the guidelines, and recommendations for program delivery. RESULTS: The search strategies for identifying and screening publications for inclusion in the case study review was found to be manageable, comprehensive, and intuitive when applied in practice. The four search strategies of the grey literature search plan yielded 302 potentially relevant items for screening. Following the screening process, 15 publications that met all eligibility criteria remained and were included in the case study systematic review. The high-level findings of the case study systematic review are briefly described. CONCLUSIONS: This article demonstrated a feasible and seemingly robust method for applying systematic search strategies to identify web-based resources in the grey literature. The search strategy we developed and tested is amenable to adaptation to identify other types of grey literature from other disciplines and answering a wide range of research questions. This method should be further adapted and tested in future research syntheses.

Evidence gaps in the global decade of road traffic safety.

Road traffic accidents are a leading cause of global mortality. In March 2010, the United Nations General Assembly and the World Health Organization (WHO) officially proclaimed 2011-2020 as the "Decade of Action for Road Safety." Researchers must focus on vulnerable road users and low- and middle-income countries (LMICs) and should give preference to simple high-impact interventions likely to be inexpensive and widely applicable. Collaborative investigative networks should include LMICs, and economic evaluations should demonstrate the value of novel interventions in LMIC settings. Reliable data systems are essential to understand needs and outcomes, and knowledge translation studies should support effective implementation.

Patient opinions of screening for intimate partner violence in a fracture clinic setting: P.O.S.I.T.I.V.E.: a multicenter study.

BACKGROUND: Approximately one-third of injured women presenting to fracture clinics have experienced some form of intimate partner violence in the past year. The aim of the current study was to determine patients' perceptions on screening for intimate partner violence during visits to a surgical fracture clinic. METHODS: We conducted a cross-sectional study to evaluate patients' perceptions and opinions on screening for intimate partner violence in an orthopaedic fracture clinic. Eligible patients anonymously completed a self-reported written questionnaire, which included questions on patient demographics, attitudes toward intimate partner violence in general, the acceptability of screening for intimate partner violence in an orthopaedic fracture clinic, and opinions on how, when, and by whom the screening should be conducted. RESULTS: The study included 750 patients (421 male and 329 female) at five clinical sites in Canada and the Netherlands. The majority (554, 73.9%) of the respondents either "agreed" or "strongly agreed" that the fracture clinic was a good place for health-care providers to ask about intimate partner violence. The majority (671, 89.5%) also agreed that health-care providers should screen for intimate partner violence by means of face-to-face interactions rather than other, more passive methods. Increased openness to screening was significantly associated with female sex, higher income, and higher education (F3595 = 21.950, p < 0.001). CONCLUSIONS: Our findings demonstrated that the majority of patients endorse active screening for intimate partner violence in orthopaedic fracture clinics.

Influence of compensation status on time off work after carpal tunnel release and rotator cuff surgery: a meta-analysis.

BACKGROUND: The assessment of post-surgical outcomes among patients with Workers' Compensation is challenging as their results are typically worse compared to those who do not receive this compensation. These patients' time to return to work is a relevant outcome measure as it illustrates the economic and social implications of this phenomenon. In this meta-analysis we aimed to assess the influence of this factor, comparing compensated and non-compensated patients. FINDINGS: Two authors independently searched MEDLINE (Ovid), Embase (Ovid), CINAHL, Google Scholar, LILACS and the Cochrane Library and also searched for references from the retrieved studies. We aimed to find prospective studies that compared carpal tunnel release and elective rotator cuff surgery outcomes for Workers' Compensation patients versus their non-compensated counterparts. We assessed the studies' quality using the Guyatt & Busse Risk of Bias Tool. Data collection was performed to depict included studies characteristics and meta-analysis. Three studies were included in the review. Two of these studies assessed the outcomes following carpal tunnel release while the other focused on rotator cuff repair. The results demonstrated that time to return to work was longer for patients that were compensated and that there was a strong association between this outcome and compensation status - Standard Mean Difference, 1.35 (IC 95%; 0.91-1.80, p < 0.001). CONCLUSIONS: This study demonstrated that compensated patients have a longer return to work time following carpal tunnel release and elective rotator cuff surgery, compared to patients who did not receive compensation. Surgeons and health providers should be mindful of this phenomenon when evaluating the prognosis of a surgery for a patient receiving compensation for their condition. TYPE OF STUDY/LEVEL OF EVIDENCE: Meta-analysis of prospective Studies/ Level III.

Intimate partner violence and musculoskeletal injury: bridging the knowledge gap in orthopaedic fracture clinics.

Intimate partner violence (IPV) is a serious health issue. There have been widespread research efforts in the area of IPV over the past several decades, primarily focusing on obstetrics, emergency medicine, and primary care settings. Until recently there has been a paucity of research focusing on IPV in surgery, and thus a resultant knowledge gap. Renewed interest in the underlying risk of IPV among women with musculoskeletal injuries has fueled several important studies to determine the nature and scope of this issue in orthopaedic surgery. Our review summarizes the evidence from surgical research in the field of IPV and provides recommendations for developing and evaluating an IPV identification and support program and opportunities for future research.

Workers' compensation status: does it affect orthopaedic surgery outcomes? A meta-analysis.

INTRODUCTION: Previous reviews have demonstrated that patient outcomes following orthopaedic surgery are strongly influenced by the presence of Workers' Compensation. However, the variability in the reviews' methodology may have inflated the estimated strength of this association. The main objective of this meta-analysis is to evaluate the influence of Workers' Compensation on the outcomes of orthopaedic surgical procedures. METHODS: We conducted a systematic search of the literature published in this area from 1992-2012, with no language restrictions. The following databases were used MEDLINE (Ovid), Embase (Ovid), CINAHL, Google Scholar, LILACS and Pubmed. We also hand-searched the reference sections of all selected papers. We included all prospective studies evaluating the effect of compensation status on outcomes in adult patients who had undergone surgery due to orthopaedic conditions or diseases. Outcomes of interest included disease specific, region specific and/or overall quality of life scales/questionnaires and surgeons' personal judgment of the results. We used an assessment tool to appraise the quality of all included studies. We used Review Manager to create forest plots to summarize study data and funnel plots for the assessment of publication bias. RESULTS: Twenty studies met our eligibility criteria. The overall risk ratio for experiencing an unsatisfactory result after orthopaedic surgery for patients with compensation compared to non-compensated patients is 2.08 (95% CI 1.54-2.82). A similar association was shown for continuous data extracted from the studies using assessment scales or questionnaires (Standard Mean Difference = -0.70 95% CI -0.97- -0.43). CONCLUSIONS: Among patients who undergo orthopaedic surgical procedures, those receiving Workers' Compensation experience a two-fold greater risk of a negative outcome. Our findings show a considerably lower estimate of risk compared to previous reviews that include retrospective data. Further research is warranted to determine the etiological explanation for the influence of compensation status on patient outcomes. SYSTEMATIC REVIEW REGISTRATION NUMBER: CRD42012002121.