Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check
Background: several strategies are used to assess adherence to ketogenic dietary therapies (KDTs), the most commonly used being ketonemia or ketonuria, despite their limitations. The purpose of this article is to carry out an exploratory and confirmatory factor analysis on the proposed Keto-check (a...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Nutrients |
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| Online Access: | https://www.mdpi.com/2072-6643/15/17/3673 |
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| author | Lenycia de Cassya Lopes Neri Alexandre Archanjo Ferraro Monica Guglielmetti Simona Fiorini Letícia Pereira de Brito Sampaio Anna Tagliabue Cinzia Ferraris |
| author_facet | Lenycia de Cassya Lopes Neri Alexandre Archanjo Ferraro Monica Guglielmetti Simona Fiorini Letícia Pereira de Brito Sampaio Anna Tagliabue Cinzia Ferraris |
| author_sort | Lenycia de Cassya Lopes Neri |
| collection | DOAJ |
| description | Background: several strategies are used to assess adherence to ketogenic dietary therapies (KDTs), the most commonly used being ketonemia or ketonuria, despite their limitations. The purpose of this article is to carry out an exploratory and confirmatory factor analysis on the proposed Keto-check (adherence’s KDT Brazilian questionnaire). Methods: there was a methodological study of a quantitative nature, complementary to the analysis realized previously, with a complimentary sample. The factorial analysis was performed with Factor software for parallel exploratory analysis, replicability, and confirmatory factor analysis. Graphical representation was created according to the number of factors resulting from the analysis. Results: 116 questionnaires were reached by complementary data collection (<i>n</i> = 69 actual data, complementing <i>n</i> = 47 previous data) through online forms. A polychoric correlation matrix suitability analysis resulted in a significant Bartlett statistic (<i>p</i> = 0.0001) and a Kaiser–Meyer–Olkin (KMO) test of 0.56. The parallel factorial analysis resulted in two factors, graphically represented as “efficacy” and “adherence”. A confirmatory factor analysis, considered fair, indicated an RMSEA of 0.063, NNFI resulted in 0.872, CFI in 0.926, and GFI in 0.897. Conclusion: this study confirms the validity of Keto-check through a more detailed analysis. Adherence is the key to improving the effectiveness of KDTs; therefore, improving knowledge about it can lead to a better healthcare approach. |
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| issn | 2072-6643 |
| language | English |
| last_indexed | 2024-03-10T23:16:10Z |
| publishDate | 2023-08-01 |
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| record_format | Article |
| series | Nutrients |
| spelling | doaj.art-2e7d249ba8fc42f98f090aed1d815eb82023-11-19T08:37:34ZengMDPI AGNutrients2072-66432023-08-011517367310.3390/nu15173673Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-CheckLenycia de Cassya Lopes Neri0Alexandre Archanjo Ferraro1Monica Guglielmetti2Simona Fiorini3Letícia Pereira de Brito Sampaio4Anna Tagliabue5Cinzia Ferraris6Faculty of Medicine, Department of Pediatrics, University of Sao Paulo, São Paulo 05403-000, BrazilFaculty of Medicine, Department of Pediatrics, University of Sao Paulo, São Paulo 05403-000, BrazilKetogenic Metabolic Therapy Laboratory, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, ItalyLaboratory of Food Education and Sport Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, ItalyFaculty of Medicine, Department of Pediatrics, University of Sao Paulo, São Paulo 05403-000, BrazilKetogenic Metabolic Therapy Laboratory, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, ItalyKetogenic Metabolic Therapy Laboratory, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, ItalyBackground: several strategies are used to assess adherence to ketogenic dietary therapies (KDTs), the most commonly used being ketonemia or ketonuria, despite their limitations. The purpose of this article is to carry out an exploratory and confirmatory factor analysis on the proposed Keto-check (adherence’s KDT Brazilian questionnaire). Methods: there was a methodological study of a quantitative nature, complementary to the analysis realized previously, with a complimentary sample. The factorial analysis was performed with Factor software for parallel exploratory analysis, replicability, and confirmatory factor analysis. Graphical representation was created according to the number of factors resulting from the analysis. Results: 116 questionnaires were reached by complementary data collection (<i>n</i> = 69 actual data, complementing <i>n</i> = 47 previous data) through online forms. A polychoric correlation matrix suitability analysis resulted in a significant Bartlett statistic (<i>p</i> = 0.0001) and a Kaiser–Meyer–Olkin (KMO) test of 0.56. The parallel factorial analysis resulted in two factors, graphically represented as “efficacy” and “adherence”. A confirmatory factor analysis, considered fair, indicated an RMSEA of 0.063, NNFI resulted in 0.872, CFI in 0.926, and GFI in 0.897. Conclusion: this study confirms the validity of Keto-check through a more detailed analysis. Adherence is the key to improving the effectiveness of KDTs; therefore, improving knowledge about it can lead to a better healthcare approach.https://www.mdpi.com/2072-6643/15/17/3673adherencecomplianceketogenic dietdrug-resistant epilepsy |
| spellingShingle | Lenycia de Cassya Lopes Neri Alexandre Archanjo Ferraro Monica Guglielmetti Simona Fiorini Letícia Pereira de Brito Sampaio Anna Tagliabue Cinzia Ferraris Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check Nutrients adherence compliance ketogenic diet drug-resistant epilepsy |
| title | Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check |
| title_full | Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check |
| title_fullStr | Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check |
| title_full_unstemmed | Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check |
| title_short | Factor Analysis of the Brazilian Questionnaire on Adherence to Ketogenic Dietary Therapy: Keto-Check |
| title_sort | factor analysis of the brazilian questionnaire on adherence to ketogenic dietary therapy keto check |
| topic | adherence compliance ketogenic diet drug-resistant epilepsy |
| url | https://www.mdpi.com/2072-6643/15/17/3673 |
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