Compliance with a healthy lifestyle in a representative sample of the Greek population: preliminary results of the Hellas Health I study

Objectives: To investigate lifestyle health behaviours, such as smoking, physical activity, weight status and dietary habits, in a representative sample of the adult Greek population.

Study design: Cross-sectional, household interviews (Hellas Health I survey, 2006).

Methods: A stratified representative sample (n = 1005, 483 males, 522 females) of the Greek adult population (mean age 47.39 years, median age 46 years, range 18-99 years) was interviewed. Self-reported demographic and lifestyle behaviour data were obtained. The Food Frequency Questionnaire (FFQ) was used to record dietary habits, and a Mediterranean score was derived from the FFQ to assess adherence to the Mediterranean diet. A higher Mediterranean score indicates greater adherence to the Mediterranean diet. Physical activity was evaluated using the International Physical Activity Questionnaire.

Results: Smoking is highly prevalent in the Greek population (43.1%), particularly among people aged 18-36 (52.9%) and 37-56 years (51.9%). Smoking prevalence was 52.4% in men and 34.5% in women (P < 0.001). In total, 54.1% of men and 45.3% of women were classified as physically active (P = 0.007). The proportion of physically active subjects decreased with age (P for trend<0.001). The prevalence of obesity was higher in women (18.3%) than men (14.3%, P < 0.001), and increased with age (P for trend<0.001). Men were found to have higher Mediterranean scores than women (27.09 vs 26.14, P < 0.05). Dietary habits also differed between younger and older participants, and the Mediterranean score increased with age.

Conclusions: The prevalence rates for smoking, physical inactivity and obesity are high, and compliance with the Mediterranean diet is low in Greece. Nationwide interventions focused on health promotion and primary prevention are urgently needed.