Are children smoke-free at home? Using wearable cameras to study children's exposure to smoking and smoking paraphernalia in private spaces.

BACKGROUND: There is limited evidence available on the nature of children's exposure to smoking and smoking paraphernalia in private spaces (homes and cars). We aimed to evaluate the extent and nature of children's exposure to smoking in these settings using image data captured by wearable cameras. METHODS: One-hundred and sixty-eight children wore wearable cameras for 4 days that automatically took pictures every 7 s. Images captured in private spaces (n = 140,818) by children living in households with a smoker (n = 34) were screened for instances of smoking and smoking paraphernalia. RESULTS: A total of 37 incidents of smoking-four indoor, 21 outdoor, and two in-vehicles-and 62 incidents of smoking paraphernalia were observed. Most smoking incidents in homes (21 of 33) took place outdoors. CONCLUSIONS: The findings support health promotion efforts to make smokers more aware that smoking paraphernalia may normalize smoking for children. The methodology (wearable cameras) appears to have high utility for studying health behaviours in private spaces.

Studying third-parties and environments: New Zealand sun-safety research.

Wearable cameras have been used to study health behaviours, but their utility in assessing third-party behaviours and the built environment is uncertain. This paper reports on the feasibility of using wearable cameras for this purpose in a study of sun-protective behaviours and shade availability during school lunch-breaks. The Kids'Cam study provided 168 children (aged 11-13 years), recruited from 16 randomly selected schools in the Wellington region of New Zealand, with wearable cameras. The devices automatically captured images every 7 s from the child's perspective. Images captured during school lunch-breaks by a random sample of 15 children who took part during terms 4 and 1 (October 2014-April 2015) were selected and assessed for usability. The feasibility of studying third-party sun-protective behaviours and school shade availability was assessed for a subset of 320 images. Of the 3492 eligible lunch-break images, 96.4% were useable; the remainders were excluded due to obstruction, blurriness or unsuitable camera position. Overall, 1278 children and 108 shade structures were observed in the sample images. The use of shade, hats, sleeves, collars and sunglasses could be determined for 97.0%, 77.2%, 74.4%, 47.6% and 54.9% of children, respectively. All shade structures could be classified according to type, and canopy composition could be assessed for 95.4% of structures. Wearable cameras are a feasible tool for assessing sun-safety, particularly shade availability, hat wearing and shade use. This methodology could be used to objectively study other third-party health-related behaviours, and other features of the built environment.

Sun protection and shade availability in New Zealand's outdoor recreation spaces.

AIMS: We aimed to investigate sun protection behaviours and shade availability in outdoor recreation spaces using images captured by children who, in 2014/15, wore wearable cameras for four consecutive days. METHODS: The 168 participants visited 16 outdoor recreation spaces between 10am and 4pm, capturing 378 images, on average, in each setting. People observed in the images (n=2,635) were coded for age, sex, clothing worn (38 clothing types) and shade used. Mean temperature and ultraviolet index (UVI) values were linked with the time-stamped and geo-referenced images. RESULTS: The UVI in most settings was high enough to warrant sun protection, but only 4.3% of people wore sun-protective hats (broad-brim, bucket and legionnaire styles) and 10.7% used shade. Areas most popular with children, including playground equipment, beach sand and pool areas, had little or no shade available. CONCLUSIONS: Despite New Zealand having the highest incidence of melanoma skin cancer in the world, the results indicate that few New Zealanders wear hats and seek shade in outdoor recreation settings. The findings highlight the need to improve policy and environmental support for skin cancer prevention activities.

Sun Protection Among New Zealand Primary School Children.

Schools are an important setting for raising skin cancer prevention awareness and encouraging sun protection. We assessed the clothes worn and shade used by 1,278 children in eight schools in the Wellington region of New Zealand. These children were photographed for the Kids'Cam project between September 2014 and March 2015 during school lunch breaks. Children's mean clothing coverage (expressed as a percentage of body area covered) was calculated. Data on school sun-safety policies were obtained via telephone. Mean total body clothing coverage was 70.3% (95% confidence interval = 66.3%, 73.8%). Body regions with the lowest mean coverage were the head (15.4% coverage), neck (36.1% coverage), lower arms (46.1% coverage), hands (5.3% coverage), and calves (30.1% coverage). Children from schools with hats as part of the school uniform were significantly more likely to wear a hat (52.2%) than children from schools without a school hat (2.7%). Most children (78.4%) were not under the cover of shade. Our findings suggest that New Zealand children are not sufficiently protected from the sun at school. Schools should consider comprehensive approaches to improve sun protection, such as the provision of school hats, sun-protective uniforms, and the construction of effective shade.

Clothing Protection from Ultraviolet Radiation: A New Method for Assessment.

Clothing modifies ultraviolet radiation (UVR) exposure from the sun and has an impact on skin cancer risk and the endogenous synthesis of vitamin D. There is no standardized method available for assessing body surface area (BSA) covered by clothing, which limits generalizability between study findings. We calculated the body cover provided by 38 clothing items using diagrams of BSA, adjusting the values to account for differences in BSA by age. Diagrams displaying each clothing item were developed and incorporated into a coverage assessment procedure (CAP). Five assessors used the CAP and Lund & Browder chart, an existing method for estimating BSA, to calculate the clothing coverage of an image sample of 100 schoolchildren. Values of clothing coverage, inter-rater reliability and assessment time were compared between CAP and Lund & Browder methods. Both methods had excellent inter-rater reliability (>0.90) and returned comparable results, although the CAP method was significantly faster in determining a person's clothing coverage. On balance, the CAP method appears to be a feasible method for calculating clothing coverage. Its use could improve comparability between sun-safety studies and aid in quantifying the health effects of UVR exposure.

Kids'Cam: An Objective Methodology to Study the World in Which Children Live.

INTRODUCTION: This paper reports on a new methodology to objectively study the world in which children live. The primary research study (Kids'Cam Food Marketing) illustrates the method; numerous ancillary studies include exploration of children's exposure to alcohol, smoking, "blue" space and gambling, and their use of "green" space, transport, and sun protection. METHODS: One hundred sixty-eight randomly selected children (aged 11-13 years) recruited from 16 randomly selected schools in Wellington, New Zealand used wearable cameras and GPS units for 4 days, recording imagery every 7 seconds and longitude/latitude locations every 5 seconds. Data were collected from July 2014 to June 2015. Analysis commenced in 2015 and is ongoing. Bespoke software was used to manually code images for variables of interest including setting, marketing media, and product category to produce variables for statistical analysis. GPS data were extracted and cleaned in ArcGIS, version 10.3 for exposure spatial analysis. RESULTS: Approximately 1.4 million images and 2.2 million GPS coordinates were generated (most were usable) from many settings including the difficult to measure aspects of exposures in the home, at school, and during leisure time. The method is ethical, legal, and acceptable to children and the wider community. CONCLUSIONS: This methodology enabled objective analysis of the world in which children live. The main arm examined the frequency and nature of children's exposure to food and beverage marketing and provided data on difficult to measure settings. The methodology will likely generate robust evidence facilitating more effective policymaking to address numerous public health concerns.

Harm to others from alcohol: the role of socio-cultural variables / Daño a otros por causa del alcohol: la contribución de las variables socioculturales / Dano a outros causado pelo álcool: o papel das variáveis socioculturais

This paper describes the changes in alcohol research, from a traditional individual focus on individual bodily and mental effects, to a broader focus on harm to others. This shift has coincided with broader sequential definitions of the progression from normal through harmful alcohol dependence, both in the specialized epidemiological and also in the newer classificatory systems (DSM 5 and CIE 11 draft). After presenting updated global, regional and chilean data, an international collaborative Project (Alcohol Harm to Others, ATOH) is described, with the participating institutions: the local study and the chilean components of the research team, the conceptual framework of harm to others (families, children, women; neighbors, friends, co-workers; society at large). Ethical aspects and institutional approval are presented and the principal results outlined: socio-demographic data (with special focus on the role of gender, socio-economic level and religiosity/spirituality). The data is presented for the chilean sample, with examples from other participating countries. The complexity of the link between alcohol harm to others and religious and spiritual factors is studied comparing data from several of the participating countries, and the impact upon vulnerable populations, especially women and children. The discussion reviews some of the confounding and intervening factors that could influence the results. The conclusion about prevention and policy development closes the paper.

Este artículo describe los cambios en investigación sobre el abuso de alcohol, desde un enfoque tradicional sobre los efectos corporales y mentales en el individuo, a un enfoque amplio sobre el daño a otros. Este cambio ha coincidido con definiciones secuenciales más amplias de la progresión desde el estado normal a la dependencia dañina al alcohol, ambas en la especialidad de la epidemiología y también en los nuevos sistemas de clasificación (DSM 5 y propuesta de CIE 11). Después de presentar datos actualizados globales, regionales y chilenos, se describe un proyecto internacional colaborativo (Daño a Otros por Causa del Alcohol, ATOH) con las instituciones participantes: el estudio local y los componentes chilenos del equipo de investigación, la estructura conceptual de daño a otros (familias, niños, mujeres; vecinos, amigos, compañeros de trabajo; la sociedad en general). Se presenta la aprobación institucional y aspectos éticos, así como se delinean los principales resultados: datos sociodemográficos (con enfoque especial en el rol de género, nivel socioeconómico y espiritualidad/religiosidad). Se presentan los datos de la muestra chilena, con ejemplos de otros países participantes. Se estudia la complejidad del vínculo entre el daño por alcohol a otros y factores religiosos y espirituales, comparando datos de varios de los países participantes, y el impacto sobre poblaciones vulnerables, especialmente mujeres y niños. La discusión revisa algunos de los factores de confusión y de intervención que podrían influenciar los resultados. Se cierra el artículo con conclusiones sobre prevención y desarrollo de normativas.

Este artigo descreve as alterações na pesquisa do álcool, a partir de um foco individual tradicional sobre os efeitos orgânicos e mentais individuais, para um foco mais amplo sobre danos a outros. Essa mudança coincidiu com mais amplas definições sequenciais da progressão do normal através de dependência de álcool prejudiciais, tanto na epidemiologia especializada como nos sistemas classificatórios mais recentes (DSM 5 e CIE 11 minuta). Depois de apresentar dados atualizados globais, regionais e chileno, um projeto internacional colaborativo (Alcohol Harm to Others, ATOH) é descrito, com as instituições participantes: o estudo local e os componentes chilenos da equipe de pesquisa, o quadro conceitual do dano a outrem ( famílias, crianças, mulheres, vizinhos, amigos, colegas de trabalho, e sociedade em geral). Aspectos éticos e aprovação institucional são apresentados e os principais resultados delineados: dados sócio-demográficos (com especial destaque para o papel do sexo, nível socioeconômico e espiritualidade / religiosidade). Os dados são apresentados para a amostra chilena, com exemplos de outros países participantes. A complexidade da relação entre efeitos nocivos do álcool para os outros e fatores religiosos e espirituais é estudada comparando os dados de vários dos países participantes, bem como o impacto sobre populações vulneráveis, especialmente mulheres e crianças. A discussão revê alguns dos fatores de confusão e intervenientes que poderiam influenciar os resultados. A conclusão sobre a prevenção e desenvolvimento de políticas define o papel.

Daño a niños y sus familias por el consumo de alcohol: resultados de una encuesta poblacional / Alcohol's impact on children and families: A population survey

Introducción Entre los adultos jóvenes el uso de alcohol es frecuente. Este consumo puede afectar negativamente a los menores que conviven con ellos, lo que constituye el objetivo de este estudio, que forma parte de un estudio colaborativo internacional financiado por Thai Health y la OMS. Sujetos y método Se describen los efectos negativos en niños, mediante un muestreo multietápico, aplicando una entrevista adaptada por los coinvestigadores a 1.500 chilenos de más de 18 años. Resultados Un total de 408 encuestados (27,2%) convivían con niños en el hogar. De ese total, el 10,5% estimó que el uso de alcohol de algún miembro de la familia había afectado negativamente a un niño. Los efectos más comunes fueron la violencia verbal (29,7%), presenciar violencia en el hogar (23,1%), ausencia de supervisión (18,7%), falta de dinero para proveer necesidades básicas (14,3%) y violencia física (7,7%). Casi en la mitad de los casos (46,3%) el bebedor era el padre o la madre, el padrastro/madrastra, o la pareja de la madre/padre, luego venían otros parientes (24,4%), un hermano/a del niño (4,9%) o un tutor del niño (2,4%). Conclusión Estos datos corroboran la observación clínica de que el consumo de alcohol es frecuente en los hogares. El consumo excesivo daña la salud física y mental no solo del bebedor sino también de quienes lo rodean. La violencia verbal y ser testigo de violencia grave en el hogar son frecuentes, así como los problemas económicos al no poder proveer sus necesidades básicas.

Introduction Alcohol is widely used among young families, and leisure time is frequently family time. Heavy alcohol consumption can adversely affect children. The objective of this work is to measure the harm to others in Chile. Subjects and method This descriptive and probabilistic study forms part of a collaborative research funded by Thai Health and WHO. The survey was adapted by co-researchers and applied to a nationally representative sample of 1500 Chileans over 18 years of age. Results A total of 408 respondents (27.2%) lived with children at home. Of this total, 10.5% felt that the use of alcohol by any member of the family had adversely affected a child. The most common adverse effects were verbal violence (29.7%), domestic violence (23.1%), unsupervised homes (18.7%), lack of money to provide basic needs of the child (14.3%), and physical violence (7.7%). Furthermore, in 6.6% of the cases child or family services agencies became involved. In almost half of the cases (46.3%), the drinker was the father, mother or step-parents. This was followed by other relatives (24.4%) and brothers (4.9%), or guardian of the child (2.4%). Conclusion These data support the clinical observation that alcohol is common in Chilean homes. Its consumption not only damages the physical and mental health of the drinker but also those around him. Verbal violence and witnessing serious physical violence are frequent issues, as well as economic problems that end up with the inability to provide the child with its basic needs.

Daño a terceros producido por el alcohol: resultados de un estudio poblacional en Chile / The harm to others from drinking: A population study

Background: Alcohol can harm both drinkers and their human environment. Most of research in Chile has focused on the drinker. This work focuses on the damage to others. Governmental expenditures due to drinking are estimated to quadruple the income earned through taxation. Aim: To report the results of a population survey conducted in Chile in 2013 to assess the harm done to others from drinking by a known or unknown drinker. Material and Methods: A household survey of a sample of 1500 subjects living in urban areas, predominantly over 50.000 inhabitants, was conducted by trained interviewers. Results: A significant number of respondents reported that the effect of alcohol consumption by third parties was somewhat (18.7%) or very negative (14.8%). The most frequent negative effects were verbal abuse (37.4%), being bullied (17.4%), feeling fearful at home or in a private meeting (19.6%) and family problems (16.9%). Conclusions: About one third of Chileans surveyed have suffered negative effects due to alcohol consumption of a known or unknown drinker. This finding signals the need of designing public policies addressed to minimize or prevent collateral effects of drinking.

Tunnel widening following anterior cruciate ligament reconstruction using hamstring autograft: a comparison between double cross-pin and suspensory graft fixation.

Femoral and tibial tunnel widening following ACL reconstruction using hamstring autograft has been described. Greater tunnel widening has been reported with suspensory fixation systems. We hypothesized that greater tunnel widening will be observed in patients whose hamstring autograft was fixated using a cortical, suspensory system, compared to double cross-pin fixation on the femur. We performed clinical and radiographic evaluation on 46 patients at minimum 2 years after primary ACL reconstruction. We measured subjective and objective outcomes including KT-1000 and AP, lateral radiographs. A musculoskeletal radiologist, independent of the surgical team, measured tunnel width, while correcting for magnification, at the widest point and at 1 cm away from tibial and femoral tunnel apertures. Patients in the suspensory graft fixation group exhibited significantly greater absolute change and greater percent change in femoral tunnel diameter compared to patients with double cross-pin fixation (P

The effects of stability ball training on spinal stability in sedentary individuals.

Stability ball training (SBT) is believed to improve spinal stability (SS) and could reduce the risk of back pain in sedentary individuals. The purpose of this study was to examine the effects of SBT on SS. Twenty sedentary individuals were randomly assigned to either an experimental group that performed SBT twice per week for 10 weeks or to a control group. Differences between groups were assessed by analysis of variance (ANOVA) with repeated measures. The experimental group improved significantly (p < 0.05) on the static back-endurance test from pretest (149.3 +/- 72.3 seconds) to posttest (194.6 +/- 56.7 seconds) and the side bridge test from pretest (45.4 +/- 39.4 seconds) to posttest (71.3 +/- 59.7 seconds). Back endurance for the control group did not change from pretest (123.4 +/- 64.9 seconds) to posttest (87.5 +/- 40.2 seconds), nor did the results of the side bridge test change for this group from pretest (41.8 +/- 26.4 seconds) to posttest (51.6 +/- 35.9 seconds). These findings illustrate that SBT may provide improvements in SS within this population. Practitioners might use SBT exercises where the position of the spine is maintained during the early phases of back-pain prevention programs. This type of programming might be beneficial to individuals who spend a good deal of time sitting (i.e., in corporate fitness programs) or for individuals who are prone to back pain and have been cleared to exercise. Also, the side bridge and static back endurance assessments may be good choices for measuring SS in field settings.

Traumatic articular-bursal fistula in a collegiate football player.

A collegiate football player suffered a direct blow to the distal quadriceps mechanism, resulting in a partial tear of the vastus medialis obliquus. Over time, he began to develop activity-related swelling of his prepatellar bursa. By 6 weeks after his injury, an area of swelling the size of a golf ball would rapidly develop with just 5 minutes of quadriceps exercises. Swelling would diminish within a few hours of rest. A magnetic resonance imaging examination suggested a fistula track from the articular space through the vastus medialis obliquus into the prepatellar bursal area. When prolonged rest did not improve his symptoms, he was taken to surgery. Arthroscopic visualization confirmed a traumatic fistula between the articular space and the prepatellar bursa, allowing free egress of fluid. A spinal needle was used to localize the fistula tract to allow this to be identified for an open, layered suture closure. An area of traumatic chondrosis on the medial side of the patella with loose chondral flaps was also debrided as the probable "fluid generator." The patient enjoyed a full recovery and was back to playing college football 10 weeks after surgery.

Intra-articular migration of a sutureless arthroscopic rotator cuff fixation device.

Rotator cuff tears are a common orthopaedic condition. Recent new advances in arthroscopic equipment and devices has allowed many rotator cuff tears to be repaired arthroscopically. Some of these newer devices allow sutureless repair of rotator cuff tears. We report a case of failure in intra-articular migration of such a fixation device. Displacement of the device was noted 4 months after surgery on magnetic resonance arthography. The device was removed arthroscopically with no long-term sequelae. Nevertheless, it is important to recognize that these devices have the potential for intra-articular migration. Due diligence is required in placing these devices. As with all arthroscopic procedures, there appears to be a learning curve associated with the use of sutureless rotator cuff repair fixation devices.

The knee: bone marrow abnormalities.

MRI is clearly the imaging modality of choice for detecting and exploring joint, osseous, and soft tissue injuries in the lower extremity and throughout the musculoskeletal system. Its ability to detect and differentiate the various forms of marrow pathology is unrivaled, and as such it should be obtained early in the work-up of a patient with a suspected marrow abnormality. Additionally, the radiologist must be familiar with the MRI appearances of normal marrow and the most common types of marrow pathology if its diagnostic power is to be fully realized.