Abstract
Objective
To validate the 10-item Consumer Health Activation Index (CHAI), developed in the United States, as an activation measure for interventions targeted at the Australian older general population.
Methods
The study was a cross sectional design. Exploratory factor analysis (EFA) was conducted on survey data from a community sample of participants (n = 250), aged 55–75 years. Confirmatory factor analysis (CFA) was used to evaluate dimensionality among a second sample of participants randomly sampled from the electoral roll (n = 571), aged 50–75 years. Associations between the CHAI and self-reported health behaviours were examined.
Results
EFA revealed a 7-item, two-factor structure (‘Health self-management’ and ‘Patient-provider engagement’). CFA indicated optimum model fit was obtained with this structure. Subscale reliability and validity were confirmed, with significant correlation to age, functional health literacy and health screening.
Conclusion
In contrast to the original structure, optimum model fit was obtained with a two-factor solution and retention of seven items. The subscales have utility as a measure of health activation for tailoring of information in this group.
Innovation
A freely-available, unidimensional health activation measure has demonstrated an underlying two-scale structure that will enable tailored approaches toward the enhancement and maintenance of self- and externally-managed health behaviours in an Australian population.
To validate the 10-item Consumer Health Activation Index (CHAI), developed in the United States, as an activation measure for interventions targeted at the Australian older general population.
Methods
The study was a cross sectional design. Exploratory factor analysis (EFA) was conducted on survey data from a community sample of participants (n = 250), aged 55–75 years. Confirmatory factor analysis (CFA) was used to evaluate dimensionality among a second sample of participants randomly sampled from the electoral roll (n = 571), aged 50–75 years. Associations between the CHAI and self-reported health behaviours were examined.
Results
EFA revealed a 7-item, two-factor structure (‘Health self-management’ and ‘Patient-provider engagement’). CFA indicated optimum model fit was obtained with this structure. Subscale reliability and validity were confirmed, with significant correlation to age, functional health literacy and health screening.
Conclusion
In contrast to the original structure, optimum model fit was obtained with a two-factor solution and retention of seven items. The subscales have utility as a measure of health activation for tailoring of information in this group.
Innovation
A freely-available, unidimensional health activation measure has demonstrated an underlying two-scale structure that will enable tailored approaches toward the enhancement and maintenance of self- and externally-managed health behaviours in an Australian population.
Original language | English |
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Article number | 100224 |
Number of pages | 8 |
Journal | PEC Innovation |
Volume | 3 |
Early online date | 1 Oct 2023 |
DOIs | |
Publication status | Published - 15 Dec 2023 |
Keywords
- Health activation
- Health literacy
- Validation study
- Consumer participation
- Health promotion
- Australia