SF36rec function recodes the Short Form-36 Health Survey (SF-36) dimensions into binomial data, based on Arostegui et al. (2013).
The SF-36 dimension to be recoded, it must be numeric and bounded between 0 and 100.
An integer from 1 to 8, indicating the SF-36 dimension of
Each observation of the HRQoL measured by the SF-36 is divided in eight domains, and each domain refers to an especific aspect of the HRQoL: Role Physical, Role Emotional, Physical Functioning, Vitality, Social Functioning, Body Pain, General Health and Mental Health. This domains are bounded between 0 and 100, and each domain can only take some values. This function recodes the SF-36 domains based on the method proposed in Arostegui et al. (2013) for the beta-binomial regression analysis.
The dimension recoded to binomial data.
Josu Najera Zuloaga
Arostegui I., Nuñez-Antón V. & Quintana J. M. (2013): On the recoding of continuous and bounded indexes to a binomial form: an application to quality-of-life scores, Journal of Applied Statistics, 40:3, 563-583
Arostegui I., Nuñez-Antón V. & Quintana J. M. (2006): Analysis of short-form-36 (SF-36): The beta-binomial distribution approach, Statistics in Medicine, 26, 1318-1342
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