Associations of neighbourhood greenness with physical and mental health : do walking, social coherence and local social interaction explain the relationships?

Background: Studies have shown associations between health indices and access to “green” environments but the underlying mechanisms of this association are not clear.

Objectives: To examine associations of perceived neighbourhood “greenness” with perceived physical and mental health and to investigate whether walking and social factors account for the relationships.

Methods: A mailed survey collected the following data from adults (n  =  1895) in Adelaide, Australia: physical and mental health scores (12-item short-form health survey); perceived neighbourhood greenness; walking for recreation and for transport; social coherence; local social interaction and sociodemographic variables.

Results: After adjusting for sociodemographic variables, those who perceived their neighbourhood as highly green had 1.37 and 1.60 times higher odds of better physical and mental health, respectively, compared with those who perceived the lowest greenness. Perceived greenness was also correlated with recreational walking and social factors. When walking for recreation and social factors were added to the regression models, recreational walking was a significant predictor of physical health; however, the association between greenness and physical health became non-significant. Recreational walking and social coherence were associated with mental health and the relationship between greenness and mental health remained significant.

Conclusions: Perceived neighbourhood greenness was more strongly associated with mental health than it was with physical health. Recreational walking seemed to explain the link between greenness and physical health, whereas the relationship between greenness and mental health was only partly accounted for by recreational walking and social coherence. The restorative effects of natural environments may be involved in the residual association of this latter relationship.

Are perceptions of the local environment related to neighbourhood satisfaction and mental health in adults?

Background: Perceptions of environmental attributes can influence satisfaction with where people live and mental health status. We examined the association between perceived environmental characteristics, neighbourhood satisfaction, and self-rated mental health.

Methods: We report cross-sectional data from the Physical Activity in Localities and Community Environments (PLACE) study in Australia (n = 2194). Self-report data included socio-demographics, perceived attributes of the environment, neighbourhood satisfaction (NS) and mental health status. Neighbourhood SES was obtained through census data. Factor analysis was used to identify dimensions of NS. Generalized linear models were used to examine associations between NS and perceived environment characteristics and whether aspects of NS were independently associated with mental health.

Results: NS factors identified were safety and walkability, access to destinations, social network, travel network, and traffic and noise. Perceived environmental characteristics of aesthetics and greenery, land use mix – diversity, street connectivity, traffic safety, infrastructure for walking, access to services and barriers to walking were found to be positively associated with these factors. Traffic load and crime were negatively associated. Three NS factors (safety and walkability, social network, and traffic and noise) were independent predictors of mental health.

Conclusions: Neighbourhood satisfaction may mediate the association between perceived environmental characteristics and measures of mental health in adults.

Does family intervention for adolescent substance use impact parental mental health? A systematic review

Adolescent substance abuse is a prevalent problem and both individual and group family interventions are increasingly being used to assist families to cope. A literature review was conducted to identify whether individual and group family interventions for adolescent substance abuse enhance the mental health of parents and other family members. The review also sought to identify direct and indirect effects of family intervention processes on depressive symptoms and general distress. Based on quality criteria a total of nine studies were included. Of these, six quantitatively examined family intervention outcomes on family member mental health, with all six reporting positive effects. Four of the nine studies measured levels of depressive symptoms and three of these four studies reported significant direct effects of family intervention on parental depression. The positive effects were also found in the three qualitative studies included in the review. Indirect therapeutic mechanisms that contributed to mental health improvements included: reduction of stress symptoms, improved coping, improved family functioning, more effective parenting behaviours, attitude changes, perceived changes in relative’s substance use, and improved social support. The available literature suggests that a number of determinants of family mental health may potentially be impacted through family intervention for adolescent substance abuse. However, definitive conclusions cannot be made at this point as the literature is mostly descriptive and there have been few longitudinal studies or randomised controlled trials.

Differences in dropout between diagnoses in child and adolescent mental health services

Dropout from treatment is a significant problem in child and adolescent mental health services, and findings regarding the role of possible contributing factors are inconsistent. It is argued that this inconsistency may be the result of the confounding effects of different definitions of dropout, and different dropout rates for different diagnoses. A file review of 520 new cases over a 12-month period in a large Child and Adolescent Mental Health Service in Melbourne, Australia was performed. Information was collected about the intake, parents, family, child, diagnoses and treatment. A significant relationship was found between diagnosis and dropout rate, with clients experiencing family problems or conduct disorder and ADHD being more likely to dropout, and those experiencing negative life events, anxiety disorders or those not having a diagnosis being less likely to dropout. These findings offer potential directions for services to consider specific strategies for retaining their clients. Possible reasons for these findings, methodological issues and future research directions are discussed.

Nutrition and mental health research in Australia and New Zealand: A review of progress and directions for the future

This review summarises nutrition and mental health research in Australia and New Zealand between 1986 and 2006. The method used to identify papers for inclusion was a search of computerised databases: Medline, Cinahl and Meditext 1986–2006, with subsequent bibliographical review. Key search words were nutrition, diet, mental disorder, mental illness, weight, physical health, Australia and New Zealand. Inclusion criteria included: English language, original data in peer reviewed journals, and examination of some component of nutrition in people with a mental illness. The review of thirteen papers found that the evidence base for dietetic practice in mental health has developed through small assessment and interventional research, often with multidisciplinary collaboration. Future research should include quality and outcome measures with intersectoral partnerships. Dietitians are well positioned to lead and participate in mental health research and to implement research findings to improve the nutritional status of this vulnerable group.

Identifying the health and mental health information needs of people with coronary heart disease, with and without depression

Objective:
To identify the health and mental health information needs of people with coronary heart disease (CHD), with and without comorbid depression.

Design and setting:
A qualitative study conducted in Melbourne in 2006, using thematic analysis of semi-structured interviews on the types of health information that patients with CHD considered useful to assist with the management of their illness. Structured clinical interviews were used to assess current and prior depressive episodes in these patients.

Participants:
14 general practice patients (eight with current or prior history of major depression) who had experienced myocardial infarction, coronary artery bypass graft surgery, angioplasty or angina (confirmed via testing).

Results:
Four themes relating to information on how patients could manage their cardiovascular health and improve their psychosocial wellbeing emerged: psychosocial; physical activity; medical; and information for family. The most prominent information needs included identification and management of risk-related physical symptoms, and psychosocial information, most notably to enhance patients’ social support. Patients considered this information important for alleviating health anxiety and negative affect.

Conclusion:
This small patient sample endorsed the need for health and mental health information on a range of psychosocial and physical health topics. Participants desired specific types of information to assist with the self-management of their health and to assuage their health concerns.

Buffering effect of leisure self-determination on the mental health of older adults

Leisure self-determination was tested for its capacity to buffer the effects of life stress on the level of depression of older adults. A direct association between leisure-self-determination and level depression was also tested. A sample of 152 individuals aged 49 years and over completed a questionnaire which included measures of stress, leisure self-determination, and depression. Hierarchical multiple regression analysis incorporating an interaction component to represent the buffering effect was used to analyse the data. Higher levels of leisure self-determination were significantly associated with lower levels of depression regardless of life stress. Leisure self-determination also acted as a buffer of the association between life stress and depression. The study has significant theoretical and practical implications. Theoretically, it supports the stress buffering hypothesis of Coleman and Iso-Ahola (1993) when applied to a sample of older adults. The practical implications of the empirical evidence focus on the importance of fostering leisure self-determination dispositions through leisure practices, policies, and leadership styles that facilitate and support older adult autonomy in leisure experiences.

The impact of workload on wellbeing, mental health and depression : a longitudinal study of work perception

This paper explores the relationships between characteristics of the job (workload, control and support) and organizational justice (distributive, procedural, interpersonal and informational) at Time 1, onto three indicators of psychological health at Time 2 (psychological wellbeing, distress and depression). The sample consisted of sworn members of a state-based police force (n=143). Hierarchical regression analyses indicated that workload was associated with psychological wellbeing, distress and depression at the one-year follow-up. Specifically, high workload at Time 1 was associated with psychological distress and depression at Time 2, and low workload was associated with psychological wellbeing at Time 2. Further, there was a significant relationship between perceived informational justice at Time 1 and psychological wellbeing at Time 2. No significant interaction effects were demonstrated for the job characteristics or organizational justice onto psychological health status. That is, longitudinally, workload directly influences both positive and negative mental health, and informational justice is related to psychological wellbeing. The implications for the demand-control-support model are discussed. The injustice-as-stressor argument was generally not supported.

Factors associated with dropout and diagnosis in child and adolescent mental health services

Objective: Dropout from child and adolescent mental health services has ramifications for children, families and the services themselves. Understanding the factors that are associated with dropout for different diagnoses has the potential to assist with tailoring of services to reduce dropout. The aim of the current study was to identify such factors.

Method: A file audit was conducted for all referrals to a child and adolescent mental health service over a 12 month period, yielding 520 subjects for analysis (264 male, 256 female, mean age = 12.6 years). Parent, child and service variables of interest were recorded as were diagnoses, which were categorized into 25 superordinate categories.

Results: Almost 50% of subjects dropped out of treatment. Factors associated with dropout varied across diagnosis, and no factor was associated with dropout for all diagnoses.

Conclusion: There are differences in the factors that were associated with dropout for different disorders. This is a useful finding in terms of understanding and preventing dropout in child and adolescent mental health settings, but more research is needed.