Tackling obesity while preventing obesity stigma.

Obesity is a significant public health problem. Prevalence is rising in children and young people, with lifelong health impacts and implications for paediatric clinical practice. Obesity stigma is increasingly acknowledged as a problem within health services. Health professionals can inadvertently contribute to this stigma, which is harmful and in itself can promote weight gain. A complex web of factors contributes to obesity, and a simplistic approach exclusively focused on personal responsibility, diet and exercise is unhelpful. A more nuanced, sensitive and informed approach is needed, with careful use of language and non-judgemental partnership working.

"I'm 'just' a community pediatrician" views and challenges of pediatricians working in the community in Israel.

BACKGROUND: There are ongoing changes around the world in the training and practice of pediatricians who work in the community. These changes are driven by the understanding that pediatricians are required to provide not only acute primary care but also to address more comprehensive concerns, particularly the 'new morbidities'. The present study examines the professional identity of Israeli pediatricians in the community in light of these changes, the barriers and challenges to their work and professional adaptations in the field. METHODS: We used a mixed-methods approach, collecting the perspectives of 137 pediatricians who work in the community through an anonymous online survey, followed by in-depth semi-structured interviews with 11 community pediatricians. RESULTS: The survey results show that community pediatricians in Israel have limited knowledge on a variety of developmental, behavioral and emotional issues; that they lack working relationships with medical or other professionals; and are rarely engaged with other community services. Three main themes arose from the interviews that support and deepen the survey results: perceptions of the profession (pediatrics in the community vs. community pediatrics), the stature of pediatricians in the community (during residency, the choice to work in the community, their daily work) and barriers and change in community pediatrics (isolation, limited resources and challenges arising from the nature of community work). CONCLUSIONS: The present study sheds light on the professional identity and the day-to-day challenges and successes of pediatricians working in the community. Continuing medical education, providing a supportive framework and professional community, better resources, more time with patients, and tools and opportunities for professional development would help pediatricians who work in the community to overcome some of these challenges. The research findings reinforce the need for policy change in the field of community pediatrics with a specific community training curriculum, provision of more resources and ongoing support for pediatricians. This requires partnership between the HMOs, the Ministry of Health, the Scientific Council (Israel Medical Association, professional organizations) and NGOs in order to turn individual-level solutions into system-level and policy-changing solutions.

Mapping lifestyle medicine in undergraduate medical education: a lever for enhancing the curriculum.

BACKGROUND: In 2017, the Bipartisan Policy Center called for inclusion of lifestyle medicine (LM) in undergraduate medical education. Recognizing the requirement that lifestyle medicine should be an integral and integrated part of the curriculum, we undertook an in-depth mapping process to determine the extent of LM teaching at our Faculty, staff perceptions and the impact on medical students. METHODS: The study utilized mixed methodology. In Phase 1 (Mapping) structured analysis of course syllabi were conducted followed by observation of teaching sessions throughout the pre-clinical and clinical years, recording content, the degree of coverage, and time allocated to LM Medicine. In Phase 2 (Impact and perceptions), students' attitudes and confidence in LM counselling were ascertained by questionnaire (scale 1-4) on completion of second and fourth year of studies. Interviews were conducted with course coordinators. RESULTS: Phase 1: Students received 58 hours of LM teaching, 49 hours pre-clinical and 9 clinical; 42 hours were dedicated to theoretical knowledge and 16 hours to teaching practical skills related to lifestyle behavior change. Nutrition received the most attention (18 hours), alcohol, sleep, smoking and sexuality the least. On completion of the internal medicine rotation, students (n = 48) agreed that LM guidance should be part of the physician's role and that patients expected their physicians to be role models (mean ± sd; 3.4 ± 0.7). Students were fairly confident about providing general LM counselling (3.3 ± 1.1); but less so for exercise (3.0 ± 1.2), nutrition (2.7 ± 1.1), stress (2.5 ± 1.0), sleep (2.2 ± 1.2), and sexuality (2.1 ± 1.2). Staff recognized the importance of LM but reported time limitations and the need to bring in external experts to teach LM as challenges. CONCLUSIONS: Real-time mapping of teaching is a valuable way to ascertain teaching in practice. Based on our mapping process, redesign of curricula is needed to integrate more competency-based, experiential teaching, particularly in the clinical years.

A social ecological approach to promote learning health disparities in the clinical years: impact of a home-visiting educational program for medical students.

BACKGROUND: There is consensus that medical schools have a duty to educate students about social determinants of health (SDOH) and equip them with skills required to ameliorate health disparities. Although the National Academy of Medicine (NAM) urged the development of experiential long term programs, teaching is usually conducted in the pre-clinical years or as voluntary courses. ETGAR a required health disparities course, based on the social ecological model, was initiated to answer the NAM call. This study aimed to ascertain the course impact on students learning of SDOH and health disparities. METHODS: Students during their first clinical year cared for four patients in their transition from hospital back home, one patient in each internal medicine, surgery, pediatrics and obstetrics/gynecology rotation. The students home-visited their patients after meeting them in hospital and preparing a plain language discharge letter. Training session prior to the course, a tutorial in each rotation, and structured feedback gave the educational envelope. Mixed methodology was employed to evaluate the course impact. Quantitative data collected by students during the home-visit: patients' characteristics and quality and safety of the transition back home using the Medication Discrepancy Tool and Care Transition Measure questionnaire. Stakeholders' views were collected via interviews and focus groups with students representing all affiliated hospitals, and interviews with heads of departments most involved in the course. RESULTS: Three hundred six students in three academic years, between October 2016-July 2019, completed home visits for 485 disadvantaged patients with improvement in patients' knowledge of their treatment (3.2 (0.96) vs 3.8 (0.57), Z = -7.12, p < .0001) and identification of medication discrepancies in 42% of visits. Four themes emerged from the qualitative analysis: contribution to learning, experience-based learning, professional identity formation, and course implementation. CONCLUSIONS: ETGAR was perceived to complement hospital-based learning, making students witness the interaction between patients' circumstances and health and exposing them to four patients' environment levels. It provided a didactic framework for promoting awareness to SDOH and tools and behaviors required to ameliorate their impact on health and health disparities. The course combined communication and community learning into traditionally bio-medical clinical years and serves as a model for how social-ecology approaches can be integrated into the curriculum.

Medical student lifestyle counselling for non-communicable disease: impact on students' competence and patients' health behaviors.

BACKGROUND: Promoting healthy lifestyle is key to tackling lifestyle-induced diseases, yet many doctors feel unskilled and medical schools lack its inclusion in their curricula. The impact of a novel elective lifestyle course is described, where students provided 3 months' coaching to at-risk patients. METHODS: Students' attitudes, competence and lifestyle were assessed pre- and post the 18-month course. Patients' health measures and behaviors were measured. Student and patient views were ascertained. RESULTS: Nineteen students, 13 controls, and 29 patients participated. Perception of physicians' importance as lifestyle consultants increased in coaching students (mean ± SD 3.7 ± 0.4 vs. 3.2 ± 0.5; p = 0.05). Self-perceived competence remained high in coaching students (6.7 ± 1.8 vs. 6.7 ± 1.2; p = 0.66). Controls' competence increased but did not attain coaching students' levels (3.6 ± 2.1 vs. 5.5 ± 1.9; p = 0.009). Focus groups of students confirmed self-perceived acquisition of skills. More patients exercised (38% vs. 82.7%; p = 0.001); spent more time in physical activity (median mins/week + IQR) 25 + [0.180] vs. 120 + [45,300]; p = 0.039), and avoided less desirable foods, such as unhealthy snacks, sweets and drinks. LDL cholesterol showed declining trend. Patients highlighted students' empathy and attentiveness; satisfaction was extremely high. CONCLUSIONS: The course successfully enhanced students' counselling skills, with beneficial effects for patients. This model for teaching experience-based lifestyle medicine has potential policy implications in terms of promoting effective lifestyle counselling by future physicians.

Keeping our children safe: piloting a hospital-based home-visitation program in Israel.

BACKGROUND: Unintentional childhood injuries are a leading cause of morbidity and mortality worldwide. Attempts to prevent child home injuries have rarely been implemented in hospital settings which present an important opportunity for intervention. The SHABI ('Keeping our Children Safe; SHomrim Al BetIchut Yeladenu') program recruits at-risk families presenting with child injury to the Emergency Department. Medical/nursing students conduct two home visits and provide safety equipment and guidance. The objective of this study was to investigate the impact of SHABI on participating families' home-safety. METHODS: The pilot was conducted between May 2019 and March 2020 in northern Israel, an area with high child injury rates. Eligibility included families with preschool children who incurred a home injury. Home-safety was assessed by observation through the 'Beterem' checklist. Parents' views, knowledge, awareness of dangers and report of home injuries were assessed at the start of each visit. RESULTS: 352 of 773 eligible families agreed to be contacted. 135 participated, 98 completed both home visits. Significant improvement in home-safety items was observed 4 months after the first visit (14 [IQR12-16]) vs. (17 [IQR15-19]; p < 0.001), accompanied by an overall increase in home safety (Mean ± SD 71.9% ± 9.5% vs. 87.1% ± 8.6%; p < 0.001). 64% reported greater awareness of dangers, 60% affirmed home was safer, and 70% valued the equipment. No difference was found in the prevalence of injuries (14 of 98 families prior and 8 after the visit; p = 0.17). Home visitors reported benefiting from the experience of working with disadvantaged families. CONCLUSION: The program, which included recruitment in a hospital emergency setting and use of healthcare students as home visitors, was successfully implemented and accompanied by significant improvement in home safety with a non-significant trend of child injury decrease.

Better safe than sorry: Evaluating the implementation process of a home-visitation intervention aimed at preventing unintentional childhood injuries in the hospital setting.

Background: Child home injuries prevention interventions have rarely been implemented in hospitals. The SHABI program ("Keeping our Children Safe"; in Hebrew: "SHomrim Al BetIchut Yeladenu") recruits at-risk families arriving with child injury to the Emergency Department. Medical/nursing students conduct two home visits four months apart, providing safety equipment and guidance. One hundred thirty-five families had a first visit and 98 completed the second. Fifty percentage of families were ultra-Orthodox Jews, 11% Arab, and 28% had ≥3 preschool children. We investigated SHABI's implementation using the Consolidated Framework for Implementation Research (CFIR). Methods: Between May 2018 and March 2021 SHABI was implemented in the Emergency Department of a hospital in Israel's northern periphery, an area with high child injury rates. The Implementation process was examined through Emergency Department medical records and tracking registries, hospital management, nurses', and home visitors' meetings notes (n = 9), and a research diary. Hospital's inner setting and SHABI's characteristics were evaluated through interviews with hospital management, nurses, and home visitors 8 months after baseline (n = 18). Home visitors' characteristics were evaluated through interviews, post-visit questionnaire on challenges encountered (n = 233), families' perceptions of SHABI and home visitors' skills through telephone interviews (n = 212); and home visitors awareness of dangers at home (n = 8) baseline and 8 months later. Qualitative data were analyzed through explanatory content analysis according to CFIR constructs. Quantitative data were analyzed using X2 and Wilcoxon test for dependent subgroups. Results: Despite alignment between SHABI and the hospital's mission, structural hospital-community disconnect prevented implementation as planned, requiring adaptation and collaboration with the medical school to overcome this barrier. Recruitment was included in the initial patient triage process but was only partially successful. Medical/nursing students were recruited as home visitors, and following training proved competent. Children were a distraction during the visits, but home visitors developed strategies to overcome this. Conclusions: Injury prevention programs in hospitals have significant benefits. Identifying implementation barriers and facilitators allowed implementers to make adaptations and cope with the innovative implementation setting. Models of cooperation between hospital, community and other clinical settings should be further examined.

Between-country analysis of implementing an obesity prevention intervention using RE-AIM: HENRY in Israel and UK.

Health Exercise Nutrition for the Really Young (HENRY) is a UK community-based early childhood obesity prevention intervention that was adopted and implemented in Israel between 2013 and 2018. The aim of this study was to explore the implementation process in Israel and compare it with that of the 'parent' programme in the UK, in order to throw light on the challenges of introducing complex interventions into different countries and cultures. Published reports from HENRY and Haifa University's evaluation of the Israeli implementation were reviewed and comparisons between the UK and Israel were carried out utilizing the RE-AIM framework. In both countries, the intention was to implement in lower SES communities. When comparing the individual items, Reach and Effectiveness, we found a difference in the Reach although Effectiveness was similar: Reach was proportionally lower in Israel, but parent and professional changes in behaviour were positive in both countries. For the organizational items Adoption, Implementation and Maintenance, we found large differences between the countries. Major challenges identified in Israel included: failing to take adequate account when planning and implementing the intervention of the different ways social and health services are organized and how local authorities are structured and provide services. In addition, differences in culture beyond language and professional variations were challenges, when trying to transfer the intervention with high fidelity from the UK to Israel. Lessons learnt may benefit others in attempting cross-country implementation of complex interventions.

Teaching plain language to medical students: improving communication with disadvantaged patients.

BACKGROUND: Low health literacy underpins health inequality and leads to poor adherence to medical care and higher risk of adverse events and rehospitalization. Communication in plain language, therefore, is an essential skill for health professionals to acquire. Most medical education communication skill programs focus on verbal communication, while written communication training is scarce. ETGAR is a student delivered service for vulnerable patients after hospital discharge in which, amongst other duties, students 'translate' the medical discharge letters into plain language and share them with patients at a home visit. This study ascertains how this plain language training impacted on students' written communication skills using a tool designed for purpose. METHODS: Students, in pairs, wrote three plain language discharge letters over the course of a year for patients whom they encountered in hospital. The students handed over and shared the letters with the patients during a post-discharge home visit. Structured feedback from course instructors was given for each letter. An assessment tool was developed to evaluate students' ability to tell the hospitalization narrative using plain and clear language. First and last letters were blindly evaluated for the entire cohort (74 letters; 87 students). RESULTS: Students scored higher in all assessment categories in the third letters, with significant improvement in overall score 3.5 ± 0.8 vs 4.1 ± 0.6 Z = -3.43, p = 0.001. The assessment tool's reliability was high α = 0.797, it successfully differentiated between plain language categories, and its score was not affected by letter length or patient's medical condition. CONCLUSIONS: Plain language discharge letters written for real patients in the context of experience-based learning improved in quality, providing students with skills to work effectively in an environment where poor health literacy is prevalent. ETGAR may serve as a model for learning written communication skills during clinical years, using the assessment tool for formative or summative evaluation.

Challenges to effective and autonomous genetic testing and counseling for ethno-cultural minorities: a qualitative study.

BACKGROUND: The Arab population in Israel is a minority ethnic group with its own distinct cultural subgroups. Minority populations are known to underutilize genetic tests and counseling services, thereby undermining the effectiveness of these services among such populations. However, the general and culture-specific reasons for this underutilization are not well defined. Moreover, Arab populations and their key cultural-religious subsets (Muslims, Christians, and Druze) do not reside exclusively in Israel, but are rather found as a minority group in many European and North American countries. Therefore, focusing on the Arab population in Israel allows for the examination of attitudes regarding genetic testing and counseling among this globally important ethnic minority population. METHODS: We used a qualitative research method, employing individual interviews with 18 women of childbearing age from three religious subgroups (i.e., Druze, Muslim, and Christian) who reside in the Acre district, along with focus group discussions with healthcare providers (HCPs; 9 nurses and 7 genetic counselors) working in the same geographical district. RESULTS: A general lack of knowledge regarding the goals and practice of genetic counseling resulting in negative preconceptions of genetic testing was identified amongst all counselees. Counselors' objective of respecting patient autonomy in decision-making, together with counselees' misunderstanding of genetic risk data, caused uncertainty, frustration, and distrust. In addition, certain interesting variations were found between the different religious subgroups regarding their attitudes to genetic counseling. CONCLUSIONS: The study highlights the miscommunications between HCPs, particularly counselors from the majority ethno-cultural group, and counselees from a minority ethno-cultural group. The need for nuanced understanding of the complex perspectives of minority ethno-cultural groups is also emphasized. Such an understanding may enhance the effectiveness of genetic testing and counseling among the Arab minority group while also genuinely empowering the personal autonomy of counselees from this minority group in Israel and other countries.

Development of a novel social incubator for health promoting initiatives in a disadvantaged region.

BACKGROUND: Bottom-up approaches to disparity reduction present a departure from traditional service models where health services are traditionally delivered top-down. Raphael, a novel bottom-up social incubator, was developed in a disadvantaged region with the aim of 'hatching' innovative health improvement interventions through academia-community partnership. METHODS: Community organizations were invited to submit proposals for incubation. Selection was made using the criteria of innovation, population neediness and potential for health impact and sustainability. Raphael partnered with organizations to pilot and evaluate their intervention with $5000 seed-funding. The evaluation was guided by the conceptual framework of technological incubators. Outcomes and sustainability were ascertained through qualitative and quantitative analysis of records and interviews at 12 months and 3-5 years, and the Community Impact of Research Oriented Partnerships (CIROP) questionnaire was administered to community partners. RESULTS: Ninety proposals were submitted between 2013 and 2015 principally from non-governmental organizations (NGOs). Thirteen interventions were selected for 'incubation'. Twelve successfully 'hatched': three demonstrated sustainability with extension locally or nationally through acquiring external competitive funding; six continued to have influence within their organizations; three failed to continue beyond the pilot. Benefits to the organisations included acquisition of skills including advocacy, teaching and health promotion, evaluation skills and ability to utilize acquired knowledge for implementation. CIROP demonstrated that individuals' research skills were reported to improve (mean ± sd) 4.80 ± 2.49 along with confidence in being able to use knowledge acquired in everyday practice (5.50 ± 1.38) and new connections were facilitated (5.33 ± 2.25). CONCLUSIONS: Raphael, devised as a 'social incubator', succeeded in nurturing novel ideas engendered by community organizations that aimed to impact on health disparities. Judging by success rates of technological incubators its goals were realized to a considerable degree.

Learning social determinants of health through a home visiting course in the clinical years.

OBJECTIVE: The purpose of this study was to assess the impact of a new experience-based educational program aiming to teach social determinants of health (SDH) and health disparities, through a post-discharge home-visit conducted with patients recruited in hospital. METHODS: 105 clinical-year students visited 177 patients living in disadvantaged circumstances. Their home-visit reports were analyzed employing mixed methodology. Content analysis was conducted for classifying issues raised by students, and quantitative analysis to compare reports by level of elaboration, gender and class. RESULTS: Fifteen taxonomy items were identified. Social support and patients' medical conditions were most prevalent, followed by personal-related and community-related issues. Analysis demonstrated students' understanding of the relationship between SDH and patient health, and challenges patients face following discharge. Women and mixed couples provided more elaborate reports, which contained significantly greater critique of medical care. CONCLUSIONS: Meeting patients both in hospital and at home enhanced awareness of SDH. Students learned to view the patient comprehensively, and to understand the diverse factors affecting their health. Students, who had essentially sole responsibility for the home-visit, successfully integrated their skills to take action when needed. PRACTICE IMPLICATIONS: The ETGAR experience provided a means for effective learning about how social determinants impact on health.

The First Thousand Days: early, integrated and evidence-based approaches to improving child health: coming to a population near you?

The 'First Thousand Days' refers to the period from conception to the child's second birthday. It is increasingly gaining traction as a concept to guide public health policy. It is seen as a crucial window of opportunity for interventions that improve child and population health. This review outlines the origin and growth of the First Thousand Days concept, and the evidence behind it, particularly in the areas of brain development and cognition; mental and emotional health; nutrition and obesity; programming and economic benefits. The review then describes UK experience of use of the concept to inform policy, and a recent government inquiry that mandates more widespread implementation.

The impact of HENRY on parenting and family lifestyle: Exploratory analysis of the mechanisms for change.

BACKGROUND: Childhood obesity is a major public health concern. In the United Kingdom, a quarter of children are overweight or obese at age 5 years. Overweight and obese children are more likely to develop serious health issues such as diabetes later in life. Consequently, there is an urgent need for effective, early obesity prevention and intervention. This study investigated the impact of an 8-week child obesity intervention-HENRY (Health Exercise Nutrition for the Really Young)-designed to help parents with preschool children develop the skills and knowledge needed to improve family lifestyle and well-being. We were particularly interested in exploring the potential mechanisms by which HENRY may have a positive impact. METHOD: Focus groups (n = 7, total participants = 39) were completed with mothers attending the HENRY programme at one of seven locations across England. They took place within 2 weeks of programme completion. Follow-up telephone interviews were completed with a subsample of participants (n = 10) between 17 and 21 weeks later. RESULTS: Parents consistently reported enhanced self-efficacy in terms of improved confidence in their ability to encourage healthier behaviours such as eating fruit and vegetables and increasing physical activity, and improvements to family health behaviours. Many changes were reportedly sustained at follow-up. Data provided insights into the potential mechanisms that created the conditions for the positive changes. Participants described the importance of mutual support, being listened to by facilitators, and encouragement to identify their own ideas. Their comments indicated the success of a solution-focused, strength-based, partnership approach to supporting family lifestyle change. CONCLUSION: The results of this study contribute to the body of evidence suggesting that HENRY may have a positive impact on parenting and family lifestyle behaviour. Although data were collected in 2011, the findings contribute to an understanding of the components of effective obesity prevention in young children.

Observational analysis of disparities in obesity in children in the UK: Has Leeds bucked the trend?

BACKGROUND: The prevalence of obesity in childhood is of high concern, especially in deprived populations. We explored trends in obesity following the introduction of a citywide strategy focused on preschool children. METHODS: Analysis of obesity prevalence using the National Child Measurement Programme 2009 to 2017 for primary-school children in Leeds using 5-year aggregated data for Leeds, comparable cities, and England as a whole. RESULTS: Prevalence of obesity in Leeds for school entry children fell significantly (9.4% to 8.8%), whilst comparable cities (CC) and England as a whole showed no change (comparison of trends: P < 0.001 and P < 0.001). The reduction in Leeds was primarily in the most deprived (11.5% to 10.5%; trend comparison CC: P < 0.001, Eng: P < 0.001), but also amongst the affluent (6.8% to 6.0%; trend comparison CC: P = 0.087, Eng: P = 0.012). Prevalence in older children in Leeds was unchanged whilst it increased for comparable cities and England (trend comparison CC: P < 0.001, Eng: P < 0.001). In the deprived, obesity increased: Leeds by 1.4%; CC 1.3%, England 1% (trend comparison Eng: P = 0.004). In the affluent, obesity prevalence reduced more in Leeds than elsewhere: 2% in Leeds, 0.8% in CC, and 0.7% in England (trend comparison CC: P < 0.001, Eng: P ≤ 0.001). CONCLUSIONS: There has been a notable decrease in the prevalence of obesity especially amongst the most disadvantaged children at entry to primary school in Leeds. How this was achieved merits in-depth consideration.

Leading Healthy Lives: Lifestyle Medicine for Medical Students.

Background. Doctors have a special role in helping patients make lifestyle changes, and they are more credible and effective if they are role models. Yet few medical schools have incorporated lifestyle medicine into their curricula. We ascertained the influence of a lifestyle medicine curriculum during the first year of medical school. Methods. The curriculum, involving 140 students, consisted of one intensive day at medical school entry and 16 hours of teaching 8 months later. It addressed students' own lifestyle choices and topics related to lifestyle medicine. A survey was delivered at the beginning and end of the academic year. Results. A total of 114 students completed the first survey and 64 the second. They rated the course highly for personal and professional value. At baseline, students exhibited lifestyle behaviors typical for young adults and showed an appreciation of the physician's role in lifestyle change. However, over time they showed a significant reduction in quality of lifestyle, with increased stress, weight gain, and fast food consumption and less exercise. Conclusions. Although lifestyle medicine knowledge is valued by medical students, a 24-hour intensive lifestyle medicine curriculum delivered over 3 days appears to be ineffective in preventing worsening lifestyle behaviors over the course of the year. This is especially concerning as physicians are unlikely to provide effective guidance if they cannot sustain healthy behaviors themselves.

Mean and variance of greenness and pregnancy outcomes in Tel Aviv during 2000-14: longitudinal and cross-sectional approaches.

BACKGROUND: Natural environments may have beneficial impacts on pregnancy outcomes. However, longitudinal evidence is limited and the associations with variance in surrounding greenness is unknown. Our objective was to evaluate these associations among 73 221 live births in Tel Aviv, Israel. METHODS: Longitudinal exposure to mean of greenness during pregnancy and trimesters were calculated using satellite-based Moderate Resolution Imaging Spectroradiometer (MODIS) Normalised Difference Vegetation Index (NDVI) data. In addition, exposure to mean and variation of NDVI from high-resolution satellite and percentage of tree cover [Vegetation Continuous Fields (VCF)] at 300-m buffer were evaluated in a cross-sectional approach. Generalized linear models were used to estimate the crude and adjusted associations. We explore the possible mediating role of ambient exposures and distance to 'outdoor gyms' located in parks. RESULTS: Crude beneficial associations between exposure to higher mean NDVI during pregnancy and pregnancy outcomes were observed [for birthweight, 3rd/1st tertile exposure increased the mean by 25.5 g, 95% confidence intervals (CIs): 15.4, 35.5] and decreased the odds of low birthweight, small for gestational age, preterm deliveries (PTD) and very PTD. Adjustment for individual and neighbourhood-level markers of socio-economic status (SES) attenuated all the associations. Strongest associations were observed during the first and second trimesters. Cross-sectional associations for mean greenness were similar with narrower CIs, and associations with NDVI were stronger than with tree cover and stronger for mean compared with variance of greenness. Associations were consistent for term births, different buffer sizes and for further adjustment to maternal education. Stronger associations were observed for lowest SES. Distance to 'outdoor gyms' and variance of greenness had the largest estimates of mediation. CONCLUSION: This study adds to the limited information on when exposure to greenness is most beneficial, on the association with variance of greenness and the possible pathways. These observations require confirmation in other populations.

Risk and Protective Factors for Child Overweight/Obesity Among Low Socio-Economic Populations in Israel: A Cross Sectional Study.

Background and Aims: Scientific evidence regarding protective factors that contribute to healthy weight in childhood is limited and is particularly scarce in lower socio-economic populations in different ethnic groups. This study aimed to assess the prevalence of biological, behavioral and psychosocial factors for child overweight/obesity in Jewish and Arab population groups in Israel, and to compare their associations with child overweight/obesity in the two groups. Methods: Children aged 5-6 years were randomly selected from 20 Mother and Child Health clinics in towns and villages of lowest socio-economic ranking in Northern Israel. Children and mothers were invited for a special "One Stop Shop-Preparation for School" visit which included growth measurements. Questionnaires were distributed to mothers for self-report on biological, SES, psychological and lifestyle factors. Perinatal and early nutritional data were retrieved from clinic records. Multivariate analyses using logistic regression models predicting child overweight/obesity were conducted separately for Jewish (N = 371) and Arab (N = 575) children. Results: Overweight/obesity (BMI ≥85th centile) rates were higher in Jewish (25%) than Arab (19%) children. In both Jewish and Arab groups, respectively, maternal BMI (OR = 1.10 [95%CI = 1.04, 1.17]; OR = 1.08 [95%CI = 1.04, 1.13]), and child birthweight (OR = 1.33 [95%CI = 1.04, 1.71]; OR = 1.39 [95%CI = 1.11, 1.73]) were significant risk factors for overweight/obesity, and maternal self-efficacy regarding child's lifestyle was significantly protective (OR = 0.49 [95%CI = 0.28, 0.85]; OR = 0.54 [95%CI = 0.34, 0.85]). Additionally, four other maternal psychological and child behaviors were significantly associated with overweight/obesity in the Jewish group and two child lifestyle behavior factors in the Arab group. Moreover, significant interactions indicating moderation effects were found only in the Jewish group: maternal education and maternal age moderated the effect of maternal BMI on child overweight/obesity. No other moderation of risk factors was found. Discussion: In this study of children from low SES families, protective factors contributed to healthy child weight alongside risk factors for overweight/obesity. They differed between the population groups, and fewer variables explained overweight/obesity in Arab children. Although further expansion of these findings is required they point at the relevance of protective factors, maternal self-efficacy in particular, for understanding childhood obesity in specific ethnic contexts and for planning culturally adapted prevention programs in disadvantaged populations.