Evaluating the performance of GIS methodologies for quantifying spatial accessibility to healthcare in Multi-Island Micro States (MIMS)

Martin, Roxanne; Paul, Juel

doi:10.1093/heapol/czac001

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…Some measures (N = 3) employed time-dependent travel times using real-time traffic data. Other measures used time-dependent demand [ 63 ], time-dependent supply [ 64 ], or a combination of time-dependent travel time, demand, and supply [ 65 , 66 ].…”

Section: Resultsmentioning

confidence: 99%

Gravity models for potential spatial healthcare access measurement: a systematic methodological review

Stacherl,

Sauzet

2023

Int J Health Geogr

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Background Quantifying spatial access to care—the interplay of accessibility and availability—is vital for healthcare planning and understanding implications of services (mal-)distribution. A plethora of methods aims to measure potential spatial access to healthcare services. The current study conducts a systematic review to identify and assess gravity model-type methods for spatial healthcare access measurement and to summarize the use of these measures in empirical research. Methods A two-step approach was used to identify (1) methodological studies that presented a novel gravity model for measuring spatial access to healthcare and (2) empirical studies that applied one of these methods in a healthcare context. The review was conducted according to the PRISMA guidelines. EMBASE, CINAHL, Web of Science, and Scopus were searched in the first step. Forward citation search was used in the second step. Results We identified 43 studies presenting a methodological development and 346 empirical application cases of those methods in 309 studies. Two major conceptual developments emerged: The Two-Step Floating Catchment Area (2SFCA) method and the Kernel Density (KD) method. Virtually all other methodological developments evolved from the 2SFCA method, forming the 2SFCA method family. Novel methodologies within the 2SFCA family introduced developments regarding distance decay within the catchment area, variable catchment area sizes, outcome unit, provider competition, local and global distance decay, subgroup-specific access, multiple transportation modes, and time-dependent access. Methodological developments aimed to either approximate reality, fit a specific context, or correct methodology. Empirical studies almost exclusively applied methods from the 2SFCA family while other gravity model types were applied rarely. Distance decay within catchment areas was frequently implemented in application studies, however, the initial 2SFCA method remains common in empirical research. Most empirical studies used the spatial access measure for descriptive purposes. Increasingly, gravity model measures also served as potential explanatory factor for health outcomes. Conclusions Gravity models for measuring potential spatial healthcare access are almost exclusively dominated by the family of 2SFCA methods—both for methodological developments and applications in empirical research. While methodological developments incorporate increasing methodological complexity, research practice largely applies gravity models with straightforward intuition and moderate data and computational requirements.

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Section: Resultsmentioning

confidence: 99%

Gravity models for potential spatial healthcare access measurement: a systematic methodological review

Stacherl,

Sauzet

2023

Int J Health Geogr

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“…It is believed that within the threshold, the services provided by public facilities are equal regardless of the distance to the demand point. To solve this problem, the enhanced two‐step floating catchment area (E2SFCA) (Luo & Qi, 2009) and improved 2SFCA model have been proposed (Brizan‐St Martin & Paul, 2022; Sahebgharani & Haghshennas, 2021). The purpose is to add impedance to the model.…”

Section: Introductionmentioning

confidence: 99%

The accessibility analysis of multiple public facilities in the central urban areas based on multi‐transportation modes: A study in Chengdu

Zhang,

Li,

Peng

2023

Transactions in GIS

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With the rapid development of social economy in Chengdu, it is of great significance to analyze the accessibility of a public facilities resources, and services in respective regions for the spatial planning of public facilities and the optimization of urban construction in Chengdu. Most existing studies only consider the accessibility of a single public facility under a single transportation mode studying facilities at the same level. In this research, with the consideration of all these factors mentioned above, an improved 3‐step floating catchment area (3SFCA) model of multi‐transportation modes is introduced to analyze the accessibility and spatial distribution of multiple types of public facilities under multiple traffic modes. The new model classifies the grade of public facilities and calculates the service accessibility of public facilities under the driving, public transport, cycling, and walking modes in the five dimensions of education, medical care, commerce, transportation, and leisure in the central urban areas of Chengdu. Through the comparative analysis of multiple models, we found that the improved 3SFCA can more accurately evaluate the accessibility of all dimensions of public facilities in central urban areas of Chengdu. The accessibility of compound public facilities in the central city is excellent. With the gradual expansion to the outward areas, the diversity and accessibility of compound public facilities gradually decreases. Furthermore, the accessibility distribution of public facilities in the study area is not balanced. The accessibility between the central urban areas and the marginal areas differs greatly and the spatial differentiation is substantial.

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An empirically validated framework for measuring patient’s acceptability of health care in Multi-Island Micro States

Martin

LaFoucade

et al. 2023

Health Policy and Planning

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Measuring healthcare acceptability presents conceptual and contextual challenges, particularly in data-poor Multi-Island Microstates (MIMS). Thus, there has been limited evidence on acceptability of healthcare in MIMS, and scarce use of acceptability metrics in policy design and health system evaluation. In the present study, we developed and empirically validated a theoretical framework for measuring users’ acceptability of healthcare in a Multi-Island Microstate in the Caribbean. Using a minimum-data approach, we used synoptic review of healthcare literature and consultations with experts and health system stakeholders to define, scope and select constructs for the theoretical framework of healthcare acceptability. Empirical validation of the modelled framework was performed using data collected from household expenditure and healthcare utilization surveys in Carriacou and Petite Martinique (n = 226), island dependents of Grenada in the Caribbean. Data were used to create health utilization profiles and analyse measurement scales of the healthcare acceptability framework using non-linear partial-least square structural equation modelling. The modelled framework included 17-items integrating economic and psychosocial concepts, with one dependent construct (utilization) and 3 independent constructs (users’ perception, experience, and knowledge of health facility). Model analysis and validation indicated that the framework was significant, explaining 19% of the variation in healthcare acceptability. Users’ experience construct was influenced by perception and knowledge of health facility, and was the only construct with a significant negative relationship with acceptability. Healthcare acceptability declined with increased waiting and travel times, and unsuitable opening hours. We conclude that acceptability comprises of a complex multidimensional concept, which is highly dependent on various interacting variables and contextual characteristics of the health system. Therefore, policies and actions to improve acceptability should be context specific and focused on evaluating factors infringing healthcare acceptability. Routine acceptability and/or satisfaction studies represent baseline evidence towards understanding and integrating acceptability in healthcare assessment.

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Evaluating the performance of GIS methodologies for quantifying spatial accessibility to healthcare in Multi-Island Micro States (MIMS)

Cited by 5 publications

References 15 publications

Gravity models for potential spatial healthcare access measurement: a systematic methodological review

Gravity models for potential spatial healthcare access measurement: a systematic methodological review

The accessibility analysis of multiple public facilities in the central urban areas based on multi‐transportation modes: A study in Chengdu

An empirically validated framework for measuring patient’s acceptability of health care in Multi-Island Micro States

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