Lifestyle and Its Association With Maintaining Health

Official title

The Role of Lifestyle in Maintaining Health: Biological, Psychological and Social Responses of the Organism to Lifestyle

Overview

This study is part of the LIFEHEALTH project and will be carried out in five Mediterranean European Union countries: Croatia, Greece, Italy, Slovenia, and Spain. The aim of this study is to assess adults' lifestyle habits and how they relate to their physical and mental health. Respondents in each country will be invited to complete an online questionnaire. The survey will ask about consumption of the Mediterranean diet, physical activity, sleep habits, stress perception, mental health, social relationships, and overall health. Each country will include about 500 participants to ensure a representative sample of adults living in Mediterranean regions.The questionnaire will be translated into local languages and participation is voluntary. Multiple linear or logistic regresion wil be used to assess relation between variables. These analyses will help identify which factors are most strongly linked to health outcomes. The results of this study will help researchers describe current lifestyle patterns in the Mediterranean population. They will also examine how different lifestyle habits are linked to physical and mental health. The findings may support public health initiatives and help plan future research to improve health and well-being.

Detailed description

This study is part of the LIFEHEALTH project and will be conducted in five Mediterranean European Union countries: Croatia, Greece, Italy, Slovenia, and Spain. The study is planned for the first year of the project and aims to assess adults' lifestyle habits and their relationship to physical and mental health.

Each participating country will recruit approximately 500 respondents, selected to provide a representative sample of adults living in Mediterranean regions. Inclusion criteria are: adults aged 18 years or older, residing in the participating country, and willing to complete an online questionnaire. There are no specific exclusion criteria, except inability to provide informed consent or complete the survey.

Data will be collected via an online questionnaire. The survey includes questions about: consumption of the Mediterranean diet, physical activity, sleep habits, stress perception, mental health, social relationships, overall health. The questionnaire will be prepared in English and translated into local languages using the back-translation method to ensure accuracy and consistency. Each country's team will distribute the survey using digital platforms such as email, WhatsApp, and other online tools. Participation is voluntary, and respondents will be informed about the study objectives, procedures, and their rights before completing the questionnaire. Respondents may withdraw at any time without consequence. Before starting the survey, respondents will click the "I Agree" button to show that they understand the study and agree to take part. Statistical analyses will examine relationships between lifestyle factors and self-reported physical and mental health. The analyses will help identify lifestyle habits most strongly associated with health outcomes across countries. The collected data and results interpretation will provide a detailed overview of current lifestyle patterns in Mediterranean populations and its asociations between lifestyle and health outcomes. The findings will inform public health initiatives and support planning of future research aimed at improving health and well-being .

Primary outcome measures

• Mediterranean diet adherence [Time frame: through study completion, an average of 1 year]
• Physical Activity [Time frame: through study completion, an average of 1 year]
• Sleep Hygiene [Time frame: through study completion, an average of 1 year]
• Perceived Stress [Time frame: through study completion, an average of 1 year]
• Attitudes toward a Healthy Lifestyle [Time frame: through study completion, an average of 1 year]
• Healthy Days (Physical and Mental Health) [Time frame: through study completion, an average of 1 year]
• Personal Wellbeing [Time frame: through study completion, an average of 1 year]

Secondary outcome measures (4)

• Association between lifestyle habits and physical health [Time frame: through study completion, an average of 1 year]
• Association between lifestyle habits and mental health [Time frame: through study completion, an average of 1 year]
• Sociodemographic and health-related characteristics [Time frame: through study completion, an average of 1 year]
• Associations between lifestyle domains and body mass index. [Time frame: through study completion, an average of 1 year]

Eligibility criteria

Inclusion criteria

• Adults aged 18 years or older
• Residents of participating European countries
• Access to the internet
• Ability to provide informed consent
• Completion of the online questionnaire

Exclusion criteria

• Individuals under 18 years of age
• Non-residents of the participating European countries
• Inability to understand the language of the questionnaire
• Cognitive and/or technical difficulties preventing completion of the online questionnaire

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Observational model

Other

Study locations

Croatia · 1 center

• University of Zadar — Zadar

Identifiers

NCT: NCT07309484 · IP UNIZD 2025-27040_obs · EU Next Generation NPOO

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗