Validation of a new tool for evaluating subjects’ satisfaction with medicine package leaflets: a cross sectional descriptive study.
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2020
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Sao Paulo Medical Journal
Resumo
BACKGROUND: Package leaflets of medicines need to be intelligible, but tools for their evaluation are scarce.
OBJECTIVE: To validate a new tool for assessing subjects’ satisfaction with medicine package leaflets (LiS‑RPL).
DESIGN AND SETTING: Cross-sectional descriptive study conducted in two regions of Portugal (Lisbon
and Centre).
METHODS: 503 participants (53.1% male) were selected according to convenience and homogenously
distributed into three groups: 1 to 6; 7 to 12; and > 12 years of schooling. LiS-RPL was developed based on
international regulation guidelines and was initially composed of 14 items. Twelve package leaflets were
tested. Dimensionality calculations included: exploratory factor analysis and minimum rank factor analysis;
Kaiser-Meyer-Olkin index and Bartlett’s sphericity test to assess matrix adequacy for exploratory factor
analysis; exploratory bifactor analysis with Schmid-Leiman solution to detect possible existence of a broad
second-order factor; and Bentler’s Simplicity Index and Loading Simplicity Index to assess factor simplicity.
Diverse coefficients were calculated to assess reliability.
RESULTS: Minimum rank factor analysis detected a two-factor or single-factor structure. Exploratory factor
analysis with 12 items showed a two-factor structure, explaining 69.11% of the variance. These items were
strongly correlated with each other (r = 0.80). Schmid-Leiman: all items seemed to represent the general
factor (loadings above 0.50), which was 76.4% of the extracted variance. Simplicity indices were good
(percentile 99): Bentler’s Simplicity Index of 0.99 and Loading Simplicity Index of 0.48. Internal consistency
indexes indicated good reliability. LiS-RPL was shown to be homogenous.
CONCLUSION: LiS-RPL is a validated tool for evaluating subjects’ satisfaction with medicine package leaflets.
Descrição
Sao Paulo Medical Journal
Palavras-chave
CIÊNCIAS FARMACÊUTICAS, MEDICAMENTOS, INFORMAÇÃO EM SAÚDE, REGULAÇÃO DA SAÚDE, ESCALAS DE AVALIAÇÃO, PHARMACEUTICAL SCIENCES, DRUGS (PHARMACOLOGY), HEALTH INFORMATION, HEALTH REGULATION, ASSESSMENT SCALES
Citação
Pires C., Rosa, P. J., Vigário, M., & Cavaco, A. (2019). Validation of a new tool for evaluating subjects’ satisfaction with medicine package leaflets: a cross sectional descriptive study. Sao Paulo Medical Journal, 137(5):454-462 DOI: 10.1590/1516-3180.2019.0123160919