ObjectiveImproving health literacy at an early age is crucial to personal health and development. Although health literacy in children and adolescents has gained momentum in the past decade, it remains an under-researched area, particularly health literacy measurement. This study aimed to examine the quality of health literacy instruments used in children and adolescents and to identify the best instrument for field use.DesignSystematic review.SettingA wide range of settings including schools, clinics and communities.ParticipantsChildren and/or adolescents aged 6–24 years.Primary and secondary outcome measuresMeasurement properties (reliability, validity and responsiveness) and other important characteristics (eg, health topics, components or scoring systems) of health literacy instruments.ResultsThere were 29 health literacy instruments identified from the screening process. When measuring health literacy in children and adolescents, researchers mainly focus on the functional domain (basic skills in reading and writing) and consider participant characteristics of developmental change (of cognitive ability), dependency (on parents) and demographic patterns (eg, racial/ethnic backgrounds), less on differential epidemiology (of health and illness). The methodological quality of included studies as assessed via measurement properties varied from poor to excellent. More than half (62.9%) of measurement properties were unknown, due to either poor methodological quality of included studies or a lack of reporting or assessment. The 8-item Health Literacy Assessment Tool (HLAT-8) showed best evidence on construct validity, and the Health Literacy Measure for Adolescents showed best evidence on reliability.ConclusionsMore rigorous and high-quality studies are needed to fill the knowledge gap in measurement properties of health literacy instruments. Although it is challenging to draw a robust conclusion about which instrument is the most reliable and the most valid, this review provides important evidence that supports the use of the HLAT-8 to measure childhood and adolescent health literacy in future school-based research.
Health literacy is an increasingly important topic in the global context. In mainland China, health literacy measures mainly focus on health knowledge and practices or on the functional domain for adolescents. However, little is known about interactive and critical domains. This study aimed to adopt a skills-based and three-domain (functional, interactive and critical) instrument to measure health literacy in Chinese adolescents and to examine the status and determinants of each domain. Using a systematic review, the eight-item Health Literacy Assessment Tool (HLAT-8) was selected and translated from English to Chinese (c-HLAT-8). Following the translation process, a cross-sectional study was conducted in four secondary schools in Beijing, China. A total of 650 students in Years 7-9 were recruited to complete a self-administered questionnaire that assessed socio-demographics, self-efficacy, social support, school environment, community environment and health literacy. Results showed that the c-HLAT-8 had satisfactory reliability (Cronbach's α = 0.79; intra-class correlation coefficient = 0.72) and strong validity (translation validity index (TVI) ≥0.95; χ/ df = 3.388, p < 0.001; comparative fit index = 0.975, Tucker and Lewis's index of fit = 0.945, normed fit index = 0.965, root mean error of approximation = 0.061; scores on the c-HLAT-8 were moderately correlated with the Health Literacy Study-Taiwan, but weakly with the Newest Vital Sign). Chinese students had an average score of 26.37 (±5.89) for the c-HLAT-8. When the determinants of each domain of health literacy were examined, social support was the strongest predictor of interactive and critical health literacy. On the contrary, self-efficacy and school environment played more dominant roles in predicting functional health literacy. The c-HLAT-8 was demonstrated to be a reliable, valid and feasible instrument for measuring functional, interactive and critical health literacy among Chinese students. The current findings indicate that increasing self-efficacy, social support and creating supportive environments are important for promoting health literacy in secondary school settings in China.
It is increasingly recognised that the risks associated with climate change must be addressed through both mitigation and adaptation. Buildings are vulnerable to climate change risk and are also the source of a significant proportion of greenhouse gas emissions which contribute to climate change. The construction industry has significant potential to facilitate adaptation through actions that both reduce its contribution to greenhouse gas emissions across the construction and building lifecycle, and through physical adaptation of buildings and settlements to withstand present and future changes. However, there is limited evidence of significant adaptive action to date, and little is known about existing barriers to adaptation actions in the construction industry. This research explores barriers to climate change adaptation in the Australian construction industry through qualitative interviews with twenty-one key stakeholders. The barriers identified included: the use of inconsistent and unclear language, limited regulation, perceived unaffordability of initiatives, lack of awareness of climate change, and lack of client demand to implement initiatives. Recommendations to facilitate strategies for adaptation to climate change in the construction industry are provided. These focus on the need to a) address climate change through regulatory reform, and b) address the structure of the construction industry and its interrelationship with other built environment professions and processes.
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