Dataset Information

Assessment of direct and indirect associations between children active school travel and environmental, household and child factors using structural equation modelling.

ABSTRACT:

Background

Active school travel (AST) is influenced by multiple factors including built and social environments, households and individual variables. A holistic theory such as Mitra's Behavioural Model of School Transportation (BMST) is vital to comprehensively understand these complex interrelationships. This study aimed to assess direct and indirect associations between children's AST and environmental, household and child factors based on the BMST using structural equation modelling (SEM).

Methods

Data were drawn from Neighbourhoods for Active Kids (NfAK), a cross-sectional study of 1102 children aged 8-13?years (school years 5-8) and their parents from nine intermediate and 10 primary schools in Auckland, New Zealand between February 2015 and December 2016. Data were collected using an online participatory mapping survey (softGIS) with children, a computer-assisted telephone interviewing survey (CATI) with parents, and ArcGIS for built environment attributes. Based on the BMST a conceptual model of children's school travel behaviour was specified for SEM analyses ('hypothesised SEM'), and model modification was made to improve the model ('modified SEM'). SEM analyses using Mplus were performed to test the hypothesised/modified SEM and to assess direct and indirect relationships among variables.

Results

The overall fit of the modified SEM was acceptable (N =?542; Root mean square error of approximation?=?0.04, Comparative fit index?=?0.94, Tucker-Lewis index?=?0.92). AST was positively associated with child independent mobility, child-perceived neighbourhood safety, and parent-perceived importance of social interaction and neighbourhood social environment. Distance to school, and parental perceptions of convenience and concerns about traffic safety were negatively associated with AST. Parental fears of stranger danger were indirectly related to AST through those of traffic safety. Distance to school and child independent mobility mediated relationships between AST and child school year and sex.

Conclusions

Increasing children's AST requires action on multiple fronts including communities that support independent mobility by providing child friendly social and built environments, safety from traffic, and policies that promote local schools and safe vehicle-free zones around school.

SUBMITTER: Ikeda E

PROVIDER: S-EPMC6451289 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Publications

Assessment of direct and indirect associations between children active school travel and environmental, household and child factors using structural equation modelling.

Ikeda Erika E Hinckson Erica E Witten Karen K Smith Melody M

The international journal of behavioral nutrition and physical activity 20190405 1

<h4>Background</h4>Active school travel (AST) is influenced by multiple factors including built and social environments, households and individual variables. A holistic theory such as Mitra's Behavioural Model of School Transportation (BMST) is vital to comprehensively understand these complex interrelationships. This study aimed to assess direct and indirect associations between children's AST and environmental, household and child factors based on the BMST using structural equation modelling ( ...[more]

PMID: 30953526

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Project description:IntroductionFull functional status recovery which is a multidimensional concept, that includes personal care, infant and family care, social and occupational activities and adjusting to the role of motherhood may require several months to achieve. However, most study designs on postpartum maternal functional status were cross-sectional, providing limited insights into functional status patterns over time and the mediating relationships among variables associated with it during the postpartum period.ObjectiveTo investigate the patterns of functional status over time and the mediating relationships among variables associated with functional status after childbirth.MethodsFrom October 2020 to March 2021, 775 women in Northwest Ethiopia participated in a community-based follow-up study that was linked to a health institution. Functional status was measured by the Amharic version of WHODAS 2.0 instrument. Structural equation modelling was used to determine the direct and indirect effects of predictor variables on individual domains of functional status as measured by WHODAS 2.0 instrument.ResultsHigher fear of childbirth score, anxiety and PTSD score had a direct deleterious effect (increased risk of functional disability) on the overall functional status and six domains of WHODAS 2.0 (cognition, mobility, self-care, getting along with people, household life activities and community participation) at the first, second and third follow up periods. Higher social support had a direct protective effect (decreased risk of functional disability) on all domains of WHODAS 2.0 and the overall functional status at the three follow up periods. Higher social support had also an indirect protective effect through fear of birth on the six domains of WHODAS 2.0 and the overall functional status throughout the follow up period. Higher PTSD symptom score had also an indirect deleterious effect (increased risk of functional disability) through fear of birth on the overall functional status and six domains of WHODAS 2.0 (higher disability) throughout the follow up period. Complications of delivery management had a direct deleterious effect (increased disability score) on the domains of getting along with people, household life activities, mobility, self-care and community participation and on the overall functional status disability score.ConclusionMaternal functioning in the postpartum period is initially impaired, but improves over time. Despite improvement, maternal morbidities are correlated with worse functioning scores compared to women without these morbidities. Interventions should target on the mediating role of fear of child birth, life threatening event of health risk and PTSD with the deleterious effects of complications of delivery management, poor social support, vaginal mode of delivery, anxiety, poor physical and mental quality of life on functional status of postpartum women.

Project description:BackgroundAedes aegypti-borne diseases are becoming major public health problems in tropical and sub-tropical regions. While socioeconomic status has been associated with larval mosquito abundance, the drivers or possible factors mediating this association, such as environmental factors, are yet to be identified. We examined possible associations between proximity to houses and roads and immature mosquito abundance, and assessed whether these factors and mosquito prevention measures mediated any association between household environmental factors and immature mosquito abundance.MethodsWe conducted two cross-sectional household container surveys in February-March and November-December, 2017, in urban and rural areas of Quetzaltenango, Guatemala. We used principal components analysis to identify factors from 12 variables to represent the household environment. One factor which included number of rooms in house, electricity, running water, garbage service, cable, television, telephone, latrine, well, and sewer system, was termed "environmental capital." Environmental capital scores ranged from 0 to 5.5. Risk factors analyzed included environmental capital, and distance from nearest house/structure, paved road, and highway. We used Poisson regression to determine associations between distance to nearest house/structure, roads, and highways, and measures of immature mosquito abundance (total larvae, total pupae, and positive containers). Using cubic spline generalized additive models, we assessed non-linear associations between environmental capital and immature mosquito abundance. We then examined whether fumigation, cleaning containers, and distance from the nearest house, road, and highway mediated the relationship between environmental capital and larvae and pupae abundance.ResultsWe completed 508 household surveys in February-March, and we revisited 469 households in November-December. Proximity to paved roads and other houses/structures was positively associated with larvae and pupae abundance and mediated the associations between environmental capital and total numbers of larvae/pupae (p???0.01). Distance to highways was not associated with larval/pupal abundance (p???0.48). Households with the lowest and highest environmental capital had fewer larvae/pupae than households in the middle range (p?<?0.01).ConclusionsWe found evidence that proximity to other houses and paved roads was associated with greater abundance of larvae and pupae. Understanding risk factors such as these can allow for improved targeting of surveillance and vector control measures in areas considered at higher risk for arbovirus transmission.

Dataset Information

Assessment of direct and indirect associations between children active school travel and environmental, household and child factors using structural equation modelling.

Background

Methods

Results

Conclusions

Publications

Assessment of direct and indirect associations between children active school travel and environmental, household and child factors using structural equation modelling.

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