Abstract
Keywords
Introduction
Community participation, that is, engagement in activities occurring outside the home that are complex in nature, social and nondomestic (Chang, Coster, & Helfrich, 2013), is a key component of healthy aging (Hsu & Jones, 2012; Johnson & Mutchler, 2014; Rowe & Kahn, 1997). Community participation is a broad term referring to people’s engagement in social and community activities, such as getting together with family or friends, taking part in religious or recreational activities, working or volunteering, and taking part in social and cultural activities (Theis & Furner, 2011). As older adults develop mobility limitations or medical conditions with multiple comorbidities common to aging, for example, arthritis, respiratory disease, or diabetes, it can become increasingly difficult to participate in social and community activities (Ahem & Hendryx, 2008; Chang et al., 2013). Up to 20% of adults in the 2002 National Health Interview Survey (NHIS) who were above the age of 50 and had a chronic condition (e.g., arthritis, hypertension) reported community participation restrictions, with the prevalence of restrictions increasing for people with more comorbidities (Theis & Furner, 2011).
Physical, social, and policy features of the environment in which people live can facilitate or restrict people’s engagement in community activities (Freedman, Grafova, Schoeni, & Rogowski, 2008; Theis & Furner, 2011). For example, good street connectivity, level sidewalks, curb-cuts, transportation, positive attitudes toward people with disabilities, supportive relationships, and public programs and services may facilitate engagement in social and community activities as people age in place (Whyte, 1998; Lum et al., 2014; Theis & Furner, 2011). The importance of the person–environment “fit” is recognized as a key element of minimizing disability or participation restrictions (Whyte, 1998; Iwarsson, 2005; Lawton & Nahemow, 1973). For older adults, features of the environment may pose barriers to participation, particularly for people with more functional limitations, which are common with increasing age. For example, an older adult with arthritis who has difficulty walking for long distances may need more environmental supports (e.g., places to sit/rest, social support) to facilitate his or her community participation, as compared with an older adult with fewer limitations. Over the past 15 years, a growing number of efforts to foster older adults’ full inclusion in their community, many of which address person–environment fit characteristics, have been adopted by cities worldwide, spearheaded by the World Health Organization’s Checklist of Essentials of Age-Friendly Cities (Plouffe & Kalache, 2010; World Health Organization, 2007).
Despite the growing community initiatives, there is limited empirical evidence linking the environment to community participation among older adults. A few observational studies show that physical aspects of the environment (e.g., public transit, sidewalk conditions, places to sit and rest) and social aspects of the environment (e.g., social support, safety) are associated with community participation (Levasseur et al., 2011; Liu & Besser, 2003), whereas others show mixed associations (Beard et al., 2009; Bowling & Stafford, 2007; Haak, Fange, Horstmann, & Iwarsson, 2008; C. Hand, Law, Hanna, Elliott, & McColl, 2012; C. L. Hand, Wilkins, Letts, & Law, 2013; Keysor et al., 2010; Richard, Gauvin, Gosselin, & Laforest, 2009; Richard et al., 2013; Theis & Furner, 2011). In two recent scoping reviews, features of the environment were identified as being associated with participation of older adults, including safety, neighborhood mobility barriers, transportation, and proximity to resources in the community; however, neither an assessment of study quality nor synthesis of statistical results was conducted (C. Hand et al., 2012; Levasseur et al., 2015). Other similar reviews measure the environment-participation link in adults with chronic conditions, not in general older adults (C. Hand et al., 2012; C. L. Hand et al., 2013).
Multiple studies have used the World Health Organization’s International Classification of Functioning, Disability, and Health (ICF) environmental taxonomy as a framework to organize environmental features (Duggan, Albright, & Lequerica, 2008; Levasseur et al., 2015; Theis, Murphy, Hootman, & Wilkie, 2013; van Roekel et al., 2014). The taxonomy categorizes the environment into five domains: (a) products and technology (i.e., products, equipment, or technology that are part of the environment; for example, assistive devices, computers, or urban planning), (b) natural environment and human-made changes to environment (e.g., physical geography, population density, climate), (c) support and relationships (i.e., people or animals in an environment that provide physical or emotional support), (d) attitudes (i.e., attitudes of people in a person’s environment that are the result of cultural norms or other beliefs which may influence behavior or social life), and (e) services, systems, and policies (i.e., services, systems, and policies provided by society to meet the individuals’ needs or to enable control or organization). The environment in the ICF is classified at different levels of geographic detail, from immediate environment, such as street-level factors (e.g., curb ramps), to the broader environment, such as policy-level factors (e.g., transportation policy) to provide a comprehensive taxonomy useful for categorizing environmental features identified in the literature (World Health Organization, 2001).
To date, no study has systematically summarized and statistically combined the quantitative literature on the relationship between the environment and community participation of community-dwelling older adults, which could inform age-friendly community initiatives. Hence, the objective of this article is to identify features of the environment that are associated with community participation of community-dwelling older adults via rigorous systematic review and meta-analysis approaches. Based on the literature, we hypothesized that most environmental categories would show small but significant relationships with community participation of older adults.
Design and Methods
The systematic review and meta-analysis were conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (Moher, Liberati, Tetzlaff, & Altman, 2009). Comprehensive database searches were conducted in Web of Science, CINAHL, and PsycINFO on January 26, 2013; the search strategy was repeated using the three original databases and PubMed from February 19 to 20, 2014. The search terms were organized into population (e.g., aged, elderly, older adults), environment (e.g., neighborhood, environment, community, social factors), and participation (e.g., community participation, participation, social participation, social activities); a full electronic search strategy can be found in the appendix. Reference searches of relevant articles were conducted. Titles and abstracts were reviewed by one reviewer (MV); full article screening was then conducted by two reviewers (MV, RA).
Inclusion criteria for articles in the review were as follows: (a) adult samples above age 55; (b) examination of the neighborhood community; (c) assessment of the environment using census or administrative data, self-report, or observational approaches; (d) assessment of community participation using a broad operationalization of the term as defined as “active involvement in activities that are intrinsically social and either occur outside the home or are part of a nondomestic role” (Chang et al., 2013, p. 772); (e) cross-sectional or longitudinal study design that statistically examined the association between the environment and community participation; (f) published in 2001 or later (this date was chosen to focus on recent studies and based on the introduction of environment into the ICF framework); and (g) written in English. Exclusion criteria included (a) assessment of a specific type of community participation (e.g., volunteering) without a measure that broadly operationalized the domain; (b) studies that reported descriptive statistics of the environment or community participation, but not a statistical relationship; (c) studies whose study samples were exclusively disease-based populations (e.g., Parkinson’s disease), unless the disease was a prevalent chronic condition for older adults (e.g., arthritis).
Two reviewers (MV, RA) independently assessed the quality of the included studies and extracted relevant information during the review process. Discrepancies were resolved through discussion or with a third reviewer (JK). The eight-item Newcastle–Ottawa Scale (NOS) for cohort studies was used to rate the quality of cohort studies. The NOS, created using a Delphi method, has different scales for cohort and case-control studies and has been used in systematic reviews (Narducci, Waltz, Gorski, Leppla, & Donaldson, 2011; Wells, Smyth, & Brown, 2012). For cross-sectional studies, an eight-item checklist was used to assess bias (van Abbema et al., 2011; von Elm et al., 2007). Both rating scales’ items are found in Table 2. In addition, the following information was extracted from the selected articles: study year, study design, sample size, sample characteristics, environmental features, environmental assessment, type of community participation assessed, statistical methods, and statistical results. If more than one measure of community participation was reported in a study, the one that most closely aligned with the definition of community participation was used. Extracted features of the environment were organized into environmental categories within the ICF’s five environmental domains: (a) products and technology, (b) natural environment and human-made changes, (c) support and relationships, (d) attitudes, and (e) services, systems, and policies; discrepancies on classification were resolved with two outside reviewers (JK, ML). To statistically pool the quantitative results, environmental categories were required to be measured in no less than three studies.
Statistical Analyses
Study measures of association between environmental categories and community participation were converted into the standardized mean difference measure of effect to provide a consistent effect measure across the studies. These conversions were made using formulas from The Handbook of Research Synthesis and Meta-Analysis (Borenstein, 2009). The standardized mean difference effect size (ES) estimates were combined for each of the environmental categories using the DerSimonian and Laird random-effects method to arrive at a combined estimate and its 95% confidence interval (CI; DerSimonian & Laird, 1986). The null hypothesis value (no association) for standardized mean difference estimates is 0, so if the 95% CI excludes 0 the combined estimate is statistically significant and rejects the null hypothesis. Inconsistency in study results, or statistical heterogeneity, was evaluated by the Q test, which is used to test for extra variation in the study standardized mean difference values beyond what would be expected if all were estimating the same effect. The amount of extra variation was quantified using the I2 estimate for inconsistency (Higgins & Thompson, 2002). Values of I2 less than 0.25 were considered low heterogeneity, values between 0.25 and 0.75 were considered moderate heterogeneity, and values above 0.75 were considered high heterogeneity. Selective publication, or publication bias, was assessed by the visual evaluation of the symmetry of funnel plots and by use of the linear regression test of Egger (Egger, Davey Smith, Schneider, & Minder, 1997) An asymmetric funnel plot, or a significant result of an Egger test, would suggest that the meta-analytic combined estimates may be exaggerated from a lack of publication of nonsignificant study results. All tests were conducted with statistical significance at alpha level .05. Statistical analyses were performed using SAS (Version 9.3) and R (Version 3.2.0) statistical software packages.
Results
The initial search (January 2013) resulted in 575 publications, 11 of which met inclusion criteria; additional searches in February 2014 identified 720 publications, one of which was included (Figure 1). In total, 12 studies (one longitudinal, 11 cross-sectional) met eligibility criteria for the review and meta-analysis, including 8,694 older adults between 58 and 95 years old (Table 1).

Process of study selection.
Studies Examining Environment and Community Participation of Older Adults.
Note. ICF = International Classification of Functioning, Disability, and Health.
Going outside the home disability: Disability affecting going outside of the home.
Togetherness-oriented participation: “Sharing experiences with others and getting impressions from the outside world.”
Measured via items assessing availability of help in case of illness, disability, or problem, and (individually) the availability of someone who could take care of respondents (a) for a short period of time, (b) for a long period of time, and (c) from time to time.
Of the 12 studies, seven recruited participants from urban locations, including cities in Canada (Anaby et al., 2009; Dahan-Oliel, Mazer, Gelinas, Dobbs, & Lefebvre, 2010; Levasseur et al., 2011; Richard et al., 2009; Richard et al., 2013), the United States (Keysor et al., 2010), and Sweden (Haak et al., 2008). Two studies had a mix of urban and rural participants (Bowling & Stafford, 2007; Therrien & Desrosiers, 2010), and one study included only a rural sample (Liu & Besser, 2003). The majority of articles included participants greater than 65 years old; however, two studies used a lower age cutoff between 58 and 60 years (C. Hand et al., 2012; Richard et al., 2009), whereas another study included only people 80 years or older (Haak et al., 2008). While most studies did not include certain health diagnoses, two studies included older adults with common chronic conditions, for example, arthritis (Anaby et al., 2009; C. Hand et al., 2012), and one included participants with knee pain (Keysor et al., 2010). In addition, two studies calculated associations after stratifying their sample population into subgroups according to gender (Levasseur et al., 2011) or city size (Therrien & Desrosiers, 2010).
Environmental Features
Environmental features extracted from the articles were grouped into seven different environmental categories within the five ICF environmental domains. Land-use diversity and planning (n = 7), perceived social support (n = 6), and neighborliness (n = 6) were the most commonly measured environmental categories. Street connectivity and walkability (n = 5), living with or near family and friends (n = 4), transportation services (n = 5), and civil protection services (n = 4; for example, crime/safety) were examined, but less frequently (Table 1).
Community Participation Outcomes
Community participation was ascertained by self-report in all 12 studies, although a number of different assessment tools were used, including single-item census questions and more extensive multi-item surveys. Nine of the 12 studies used different approaches, whereas three studies used the Elderly Activity Inventory Questionnaire (Levasseur et al., 2011; Richard et al., 2009; Richard et al., 2013; Table 1).
Study Ratings
Study quality ranged from fair to good (Table 2). The cross-sectional studies’ failure to receive a full score was typically due to methodology weaknesses. Also, nearly half of the studies did not report clear inclusion or exclusion criteria, and several studies did not use validated assessment methods.
Quality Ratings of Studies.
Note. 0 = absent, 1 = present.
Questions 1 to 8: Checklist created by van Abbema et al. (2011) for cross-sectional studies. Low quality is a score less than 5 out of 8; high quality is 6 out of 8 or higher.
Questions 9 to 16: Newcastle–Ottawa Scale for cohort studies. 1: Source selection of participants is clear, and a representative sample of the population intended in the study was selected. 2: Inclusion and exclusion criteria were clearly described. 3: Methods used to ascertain exposure were valid and reliable. 4: Methods used to ascertain outcome were valid and reliable. 5: Researchers were blinded for test outcomes. 6: Appropriate univariate statistical method was used to establish the relationship between exposure and outcome. 7: Appropriate multivariate statistical methods were used to establish the relative contribution of the exposure to the outcome. 8: Statistical analysis included control for confounding factors. 9: Representation of the exposed cohort. 10: Selection of the nonexposed cohort. 11: Ascertainment of exposure. 12: Demonstration that the outcome of interest was not present at the time of study. 13: Comparability of cohorts on the basis of the design or analysis. 14: Assessment of outcome. 15: Was the follow-up long enough for outcomes to occur? 16: Adequacy of follow-up of cohorts.
Environmental Categories and Community Participation
Street connectivity/walkability
Environmental features that were considered part of the street connectivity or walkability category were measured in five studies (Beard et al., 2009; Bowling & Stafford, 2007; Haak et al., 2008; Richard et al., 2009; Richard et al., 2013)—These typically included street-level characteristics measured via a composite measure, such as sidewalk conditions, curb-cuts, places to sit/rest, and nice places to walk (Bowling & Stafford, 2007; Keysor et al., 2010). Four of the five studies found significant associations between walkability measures and community participation (Beard et al., 2009; Bowling & Stafford, 2007; Richard et al., 2009; Richard et al., 2013). The one study that did not find a significant association measured user friendliness of the walking environment (i.e., how easy it is to walk in their neighborhood) (Richard et al., 2013).
Land-use diversity
Six out of seven studies that showed a positive relationship between land-use diversity and community participation used a “quantity of social participation” measure; the one study that showed a nonsignificant relationship assessed “satisfaction with participation” (C. Hand et al., 2012). Thus, land-use diversity may be related to amount of community participation, but more research is needed to assess its relationship to satisfaction with participation.
Living with/near to friends/family
All four studies measuring the environmental category, “living with or near to friends/family,” found significant associations with community participation (Dahan-Oliel et al., 2010; Haak et al., 2008; Richard et al., 2009; Therrien & Desrosiers, 2010). However, one of these studies by Therrien & Desrosiers (2010) stratified by urban, rural, and metropolitan location and found only a significant relationship for people in rural areas.
Perceived social support
Five of the seven studies measuring perceived social support found significant associations. One of the two studies with insignificant findings measured social support as the availability of help or care in case of illness or disability (Richard et al., 2013), as compared with other studies, which measured perceived social support more broadly. The Therrien & Desrosiers (2010) study found insignificant associations regardless of city size (e.g., urban, metropolitan, or rural locations) (Therrien & Desrosiers, 2010).
Neighborliness
Five of the six studies measuring “neighborliness” found significant positive associations between neighborliness and community participation. Haak (2008) found that the association of perceived neighborliness with “togetherness-oriented participation,” defined as “sharing experiences with others and getting impressions from the outside world,” after 1 year in its sample of older adults greater than 80 years old was not statistically significant, but the estimate was in the positive direction (Haak, Fange, Horstmann, & Iwarsson, 2008). However, this study did find a significant association between living close to friends or relatives and participation.
Transportation services
Of the five studies measuring transportation services, the two that found significant associations with community participation were conducted with a more physically limited population (Keysor et al., 2010) or older sample than the other studies (Haak, Fange, Hortmann, & Iwarsson, 2008). Haak, Fange, Hortmann, & Iwarsson (2008) measured associations between “having good local transport” and togetherness-oriented participation in a sample of adults greater than 80 years old, and Keysor et al. (2010) measured associations between community participation and a composite transportation variable, including having personal transportation, nearby public transportation, available adaptations for people with physical limitations, and handicap parking availability in a sample of people with knee pain.
Civil protection services (safety)
Very mixed associations were found in the four studies measuring the relationship between civil protection services (e.g., safety, crime) and community participation. The two studies in which crime was significantly associated with community participation were the only studies conducted in a strictly urban setting (Beard et al., 2009; C. Hand et al., 2012); the other two were national studies that included both rural and urban samples from Canada and the United Kingdom (Bowling & Stafford, 2007; Therrien & Desrosiers, 2010).
Meta-Analysis of Associations Between Environmental Categories and Community Participation
With exception of the category, “Living with/near family and friends,” all environmental categories were found to have statistically significant, small to moderate, positive combined associations with community participation (Table 3). Neighborliness (ES = 0.52, 95% CI = [0.18, 0.87]) and perceived social support (ES = 0.38, 95% CI = [0.13, 0.62]) had the largest ESs, though the large CIs reflect limited power given the literature to date (Figure 2).
Statistical Results From Meta-Analysis.
Note. ICF = International Classification of Functioning, Disability, and Health; ES = effect size; CI = confidence interval.
Terminology from the ICF environmental framework.
Heterogeneity p = .4
Heterogeneity p < .01.
Heterogeneity p < .001
Heterogeneity p = .5
p ≤ .05. ** p < .01. ***p < .001.

Forest plot of effect sizes.
Inconsistency findings
We found considerable statistical heterogeneity in most categories with I2 values above 0.65 and statistically significant Q-test results, indicating that the majority of the variation in study effect estimates is due to differences between studies. The exceptions to this heterogeneity finding were the categories of “Street connectivity or walkability” and “Transportation services, systems, and policies,” where no excess variation between study results was detected (Table 3).
Selective publication findings
The seven environmental categories did not demonstrate publication bias in either the funnel plot or the Egger test. However, although the Egger test result for “Transportation services, systems, and policies” does not reach statistical significance, it is close enough (p = .09) that there could be some concern that the statistically significant combined association of .29 for this category is somewhat inflated due to publication bias.
Discussion
This is the first systematic review and meta-analysis to be conducted on associations between environmental features and community participation of older adults. Small to moderate ESs were found between community participation and neighborliness, perceived social support, land-use diversity, street connectivity/walkability, civil protection services (e.g., safety or crime), and transportation services. An insignificant association was found for the category, “Living with or near to family or friends.” Significant heterogeneity was found for five of seven categories, indicating inconsistency in study results probably due, at least in part, to differences in study methodology. For example, we found differences between studies in age ranges, city size, as well as the methods used to assess participation and environmental categories. No studies tested positive for publication bias. Our meta-analysis results generally concur with previous reviews’ findings that features of the environment are significantly associated with community participation of older adults (C. L. Hand et al., 2013; Levasseur et al., 2015) and strengthen the empirical evidence supporting certain age-friendly initiatives (Plouffe & Kalache, 2010; World Health Organization, 2007). Specifically, community participation of older adults may be improved with initiatives that aim to improve social factors, including social support, neighborliness, and safety, as well as street-level factors, such as land-use diversity, street connectivity/walkability, and transportation services.
This review found wide variability in assessment methods of the environment, including census or administrative data, geographic information system data, and self-report measures using individual questions, which could explain the high degree of heterogeneity. Within certain environmental categories, such as land-use diversity, there does not appear to be clarity in terms of which items are needed to comprehensively measure a category. More consistency in measurement approaches of specific environmental categories (e.g., safety) via contemporary measurement techniques, such as item response theory or computer adapted testing, would move the field forward (Magasi et al., 2015; Whiteneck & Dijkers, 2009). Environmental assessment is complex and needs to reflect the research question, specific domains, and the context of the person–environment interaction; as a result, it presents substantial challenges to the field and potentially requires novel use of mapping and statistical modeling approaches.
Most of the current research measuring the environment–community participation relationship is cross-sectional. To better inform policy decisions, additional study designs to better measure the causality of associations between the environment and participation are needed, for example, prospective cohort or experimental studies. In addition, only two of the studies in this review assessed the more complex interaction of personal factors (e.g., sex, age) with the environment and community participation (Levasseur et al., 2011; Therrien & Desrosiers, 2010). Instead, most of the articles included in this review examined the specific association of one or more environmental feature with participation. As conceptualized in the ICF and other disablement models, engagement in life roles is influenced by the interaction of multiple factors, such as health, motivation, and environmental features, and future research should explore these relationships.
This study has several limitations. First, due to ambiguity in the ICF terminology and limited guidelines on mapping environmental features, subjective decisions were made to group environmental features into categories. This potential inconsistency, which may reflect a newly evolving field of study, could introduce misclassification of environmental factors. Second, this review summarized the role of individual environmental categories in participation, yet there may be summative effects of the environment on participation that were not examined in this review. Third, the interaction between environment categories and function of older adults in the face of community participation was not explored in this manuscript and may explain some of the heterogeneity found across studies. Fourth, formal testing of the independence of the ICF environmental domains has not been conducted; hence, there is no guidance as to whether analyzing each environmental category’s association with participation separately is a better approach than to group them into a composite measure (e.g., all social environmental categories under social environment). However, the method taken was intended to provide empirical evidence of the relationship between specific environmental categories to inform age-related community initiatives.
However, the use of the detailed ICF environmental framework to categorize the environment and conduct a systematic review and meta-analysis provides clarification to the mixed findings from the current literature and supports small to moderate associations between the environment and community participation. More importantly, the results of this review underlie the importance of considering the social and physical features of older adults’ environments and indicate that environmental initiatives may be necessary to increase community participation for older adults. Improving community participation outcomes and opportunities for healthy aging may require forging alliances and collaborations with planners, policymakers, and public health advocates. Additional research in this field is necessary to increase the depth of knowledge about specific features of the environment, the interactions between them, and their long-term impact on community participation of older adults.
Footnotes
Appendix
Declaration of Conflicting Interests
The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors’ work is supported by NIDILRR center grant #HHS90RT5009 (Enhancing Activity & Participation among Persons with Arthritis (ENACT)) and NIAMS Multidisciplinary Clinical Research Center grant #5P60AR047785-15.
