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Knowledge, Attitudes and Practices on Fad Diets of a Panel of Spanish Consumers: Protocol of a Cross-sectional Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04128241
Recruitment Status : Completed
First Posted : October 16, 2019
Last Update Posted : July 9, 2020
Sponsor:
Collaborator:
Fundacion MAPFRE
Information provided by (Responsible Party):
Academia Española de Nutrición y Dietética

Brief Summary:

Introduction: excess body weight is a growing and underestimated problem recognized as a worldwide epidemic. The collective difficulty and frustration to achieve healthy lifestyles, has caused the emergence of the named fad diets. In addition to the uncertainties of efficacy and safety of this diets, there is a lack of research to help establish the scope of the problem, and the knowledge, attitudes and practices of the general population.

Objective: to assess the level of knowledge, attitudes (positive and negative) and practices on fad diets in a panel of consumers of socio-demographic characteristics assimilated to the Spanish population.

Methods: cross-sectional descriptive study through non-validated and self-administered online Knowledge, Attitudes and Practices survey (KAP survey), on a sample of 2 600 adult consumers (non-probabilistic quota sampling). Primary outcomes: knowledge, attitudes and practices on fad diets. Data analysis: the association of each outcome with sociodemographic and socio-economic data will be assessed, and the differences between calculated scores as well as trends in different domains according to age, educational level and income level will be assessed (point estimates and confidence intervals 95%).


Condition or disease
Knowledge, Attitudes, Practice Fad Diets

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Study Type : Observational
Actual Enrollment : 2604 participants
Observational Model: Other
Time Perspective: Cross-Sectional
Official Title: Knowledge, Attitudes and Practices on Fad Diets of a Panel of Spanish Consumers: Protocol of a Cross-sectional Study
Actual Study Start Date : November 7, 2019
Actual Primary Completion Date : November 27, 2019
Actual Study Completion Date : December 12, 2019

Resource links provided by the National Library of Medicine


Group/Cohort
Panel of Spanish consumers
A panel of Spanish consumers recruited from various audited and validated internet databases.



Primary Outcome Measures :
  1. Score indicator of Knowledge [ Time Frame: 1 month ]
    The knowledge domain is the individual understanding about fad diets and will be measured through a module of a KAP survey (Knowledge, Attitudes and Practices survey; http://www.fao.org/3/a-i3545e.pdf) by up to 8 key categorized questions that would adress this domain. Knowledge questions may have a single or several answers. The key questions will be related to the knowledge about definition, kind of popular diets , health impact and others side effects, potential effectiveness, etc. The surveyor will be able to establish if the surveyed "Knows" or "Does not knows" and the "number of correct answers" for every question. A Score of knowledge can be estimated as follows: sum of correct/knows responses given by all respondents / Total number of respondents.

  2. Score indicator of Attitudes [ Time Frame: 1 month ]
    The attitudes domain are emotions, motivations, perceptions and beliefs that respondent positively or negatively perceives to adopt or not a given fad diet. Attitudes will be measured through a module of a KAP survey (Knowledge, Attitudes and Practices survey; http://www.fao.org/3/a-i3545e.pdf) by up to 8 key three-point likert scales questions. The following specific subdomains will be assessed: (a) attitudes about negative impact of fad diets: perceived susceptibility and severity; (b) Attitudes about whether or not following a given fad diet and / or official dietary guidelines: benefits and barriers perceived, self-confidence, preparation for change. Questions in this modules will be developed based on the Health Belief Model. Surveyor will be able to establish the intensity of respondents' attitudes towards fad diets, and a score of attitudes can be estimated as follows: sum of total respondents score / Total number of respondents

  3. Indicator of Practices [ Time Frame: 1 month ]
    Indicator of Practices: The practices domain are observable actions of an individual which are associated with the follow-up of fad diets. Practices will be measured through a module of a KAP survey (Knowledge, Attitudes and Practices survey; http://www.fao.org/3/a-i3545e.pdf) by up to 8 key yes/no questions. Practice questions will be related to follow-up or not of a fad diet, the positive or negative impact perceived or the number of diets followed. Surveyor will be able to establish the overall intensity of respondents' practices towards fad diets.



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
There will be a non-probabilistic sampling by quotas of Internet consumers, previously segmented and verified, establishing quotas of age, sex and autonomous community proportional to the Spanish national scope, so, although in itself it will not be a representative sample of the Spanish population will have similar sociodemographic characteristics. Of the 159 195 Internet users that make up the general database of the Spanish population between 18 and 65 years of age, a stratified random sample will be obtained to ensure the recruitment of participants that have similar sociodemographic characteristics to the Spanish population.
Criteria

Inclusion Criteria:

  • age between 18-65 years old
  • male/Female
  • spanish Nationality
  • be a consumer of an audited and verified internet portal

Exclusion Criteria:

  • age out of the range
  • be of a different nationality than the Spanish
  • be an internet consumer of an unaudited portal

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04128241


Locations
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Spain
Academia Española de Nutrición y Dietética
Pamplona, Navarra, Spain, 31006
Sponsors and Collaborators
Academia Española de Nutrición y Dietética
Fundacion MAPFRE
Investigators
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Study Chair: Eduard Baladia Academia Española de Nutrición y Dietética
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Responsible Party: Academia Española de Nutrición y Dietética
ClinicalTrials.gov Identifier: NCT04128241    
Other Study ID Numbers: ACAD01/2019
First Posted: October 16, 2019    Key Record Dates
Last Update Posted: July 9, 2020
Last Verified: July 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Academia Española de Nutrición y Dietética:
Knowledge
Attitudes
Practice
Behaviours
Fad diets
Kap survey