Kathryn Vitangcol

Background Numerous systematic reviews and meta-analyses have sought to clarify the relationship between greenspace exposure and health outcomes, but the results are inconsistent. We aimed to synthesise all relevant systematic reviews and meta-analyses on this association. Methods We searched five databases (PubMed, Embase, the Cumulative Index to Nursing and Allied Health Literature [CINAHL], Scopus, and the Cochrane Database of Systematic Reviews) and conducted a manual reference search for systematic reviews and meta-analyses written in English and published in peer-reviewed journals that clearly defined measures of greenspace exposure and reported health outcomes directly attributable to greenspace exposure. A total of 36 systematic reviews published between January 2010 and December 2020 were identified for inclusion in this systematic review of reviews (PROSPERO: CRD42021227422). The methodological quality and risk of bias of included systematic reviews were evaluated by two independent reviewers. Results Beneficial effects of greenspace exposure were observed for all-cause and cause-specific mortality, as well as mental health and cognitive function. Ambivalent results were found for cardiovascular and metabolic health, general health and quality of life (QOL), and respiratory health and allergies. Most of the systematic reviews included in the current umbrella review had a low to moderate methodological quality and a high risk of bias. Conclusions This umbrella review highlights the link between greenspaces and a variety of health outcomes, emphasising the importance of preserving existing greenspaces and integrating additional vegetation into urban areas to maintain public health.

Introduction: Compared with the general population, people with schizophrenia and schizophrenia-related disorders (SSD) have a higher prevalence of type 2 diabetes (T2D) and T2D risk factors such as poor diet and sedentary lifestyle. Antipsychotic drugs significantly contribute to this risk through metabolic adverse effects, including weight gain and insulin resistance. Prevention and self-management of T2D is challenging in this population due to inherent motivational and cognitive challenges associated with schizophrenia. The objective of this study was to describe the co-design and test the feasibility, acceptability, and usability of a novel digital health intervention, Schizophrenia and diabetes Mobile-Assisted Remote Trainer (SMART), for prevention and self-management of T2D in people with SSD. Methods: SMART was developed through an iterative process including review of relevant literature (eg, disease-specific guidelines), stakeholder involvement, and user testing. A pre-post mixed-methods design was used to assess the acceptability and feasibility of SMART over 4 weeks among five outpatients with schizophrenia/schizoaffective disorder and pre-diabetes/T2D. Results: The co-design process resulted in a digital intervention, which consisted of personalised, interactive text messages, providing psychoeducation and strengthening motivation for self-care behaviours that promote effective diabetes self-management (ie, nutrition, physical activity, weight management, and stress coping). The pilot study demonstrated good acceptability of SMART (response rates 75– 95%). Trends towards improved clinical outcomes were observed in well-being, depression, anxiety, and mental health recovery. Barriers to usability included lack of mobile/internet data, precluding the ability to reply to text messages, and a preference for more hyperlinks and additional interactive features. Conclusion: The comprehensive co-design process resulted in the development of a novel digital intervention for prevention and self-management of T2D tailored to unique needs and preferences of people with SSD. The pilot study findings indicate that SMART is acceptable and potentially usable for this population. Results will inform further adaptation and a future feasibility study to examine preliminary effectiveness of SMART.

The Clubhouse Model of Psychosocial Rehabilitation provides non-clinical social support for adults living with a diagnosed mental illness or self-reported mental ill-health (referred to as ‘members’). The Stepping Stone Clubhouse in Brisbane, Australia was evaluated between August 2022 and August 2023 using a participatory action research approach. Data was sourced from member surveys, member interviews, and an existing Clubhouse Member Database. Outcomes included members’ self-reported psychosocial recovery, social connectedness, quality of life, frequency of hospitalizations, and their attainment of employment and/or education aspirations. In this cross-sectional evaluation, it was hypothesized that existing members (membership: 11 months – 28 years) would report better outcomes than new members (membership: 0–14 days). In total, 161 existing members and 76 new members completed a survey. Twenty-three members also participated in a semi-structured interview. Participants were aged on average 47.1 years (± 13.5), 62% were male and 31% had a primary diagnosis of schizophrenia/schizoaffective disorder. Existing members reported better scores than new members for: three of the four psychosocial recovery domains (Functional Recovery: 78.0% vs. 74.0%, p = 0.01; Symptom Management Recovery 69.5% vs. 65.2%, p = 0.03; Social Recovery 74.3% vs. 70.0%, p = 0.01); social connection with other members (38.1 vs. 32.2, p = 0.03) and staff (44.5 vs. 38.1, p = 0.02); quality-of-life summary scores (4.6 vs. 4.1, p = 0.01), and rates of mental health-related hospitalization (16% vs. 41%, p < 0.01). Existing members were also more likely to be in some form of employment, compared to new members (p = 0.01). There were no significant differences between existing and new members for their educational goals, with 58% of each group wanting further formal education. Stepping Stone members have better outcomes than members who have recently joined the Clubhouse. This evaluation was successful because it intentionally built evaluative capacity and empowered member-centric processes.

Digital health interventions (DHIs) may enable low cost, scalable improvements in the quality of care for adults with schizophrenia. Given the fast-growing number of studies using these tools, this review aimed to assess the efficacy and feasibility of randomized controlled trials (RCTs) of DHIs among people with schizophrenia, focusing on human support. A systematic search of PubMed, Embase, PsycINFO, CINAHL, Web of Science, and Cochrane databases was conducted in January 2024 to identify relevant RCTs. Random effects meta-analyses were undertaken to evaluate the effects on psychosis symptoms, cognition, and other health-related outcomes. Twenty-six RCTs (n = 2481 participants) were included. Pooled recruitment and retention rates were 57.4% and 87.6%, respectively. DHIs showed no statistically significant effect sizes across all examined outcomes, including psychosis symptoms, depression, quality of life, global and social cognition, global and social functioning, and medication adherence. A third (34.6%) of DHIs were developed using co-design while the majority (70%) personalized the intervention to its users and 69.2% were deemed to be at high risk of bias. There were trends toward effects in favor of DHIs with human support for social cognition and quality of life. DHIs are feasible for people with schizophrenia and potentially useful for improving health outcomes, particularly when including human support. More high-quality studies are required to examine the benefits of human support within DHIs. Future research should examine the feasibility of sustained adherence and benefits from digital interventions, possibly incorporating human interaction complemented with artificial intelligence, in real-world clinical settings.

Background Numerous systematic reviews and meta-analyses have sought to clarify the relationship between greenspace exposure and health outcomes, but the results are inconsistent. We aimed to synthesise all relevant systematic reviews and meta-analyses on this association. Methods We searched five databases (PubMed, Embase, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, and the Cochrane Database of Systematic Reviews) and conducted a manual reference search for systematic reviews and meta-analyses written in English and published in peer-reviewed journals that used clearly defined measures of greenspace exposure and reported health outcomes directly attributable to greenspace exposure. A total of 36 systematic reviews published between January 2010 and December 2020 were identified for inclusion in this systematic review of reviews (PROSPERO: CRD42021227422). An updated review is underway, and the protocol is published in PROSPERO (CRD42022383421). The methodological quality and risk of bias of included systematic reviews were evaluated using the AMSTAR-2 and ROBIS tools, respectively. Results Beneficial effects of greenspace exposure were observed for all-cause and cardiovascular disease mortality, and mental health and cognitive function. Ambivalent results were found for cardiovascular and metabolic health, general health and quality of life (QOL), and respiratory health and allergies. Most of the systematic reviews included in the current umbrella review had a low to moderate methodological quality and a high risk of bias. Conclusions This umbrella review highlights the link between greenspaces and a variety of health outcomes, emphasising the importance of preserving existing greenspaces and integrating additional vegetation into urban areas to maintain public health.