Table 1 Baseline characteristics of the participants

Age (years)

36.6 ± 11.1 (median—35)

Gender

 Female

1629 (96.0%)

 Male

68 (4.0%)

Relationship status

 Married/in a relationship

1156 (68.1%)

 Single/divorced/widow/er

451 (31.9%)

Education status

 High

Bachelor’s degree—725 (42.7%)

Master's degree—393 (23.2%)

Doctorate—68 (4.0%)

 Low

Certificate studies—238 (14.0%)

High school education—236 (13.9%)

Less than 12 years of schooling—15 (0.9%)

Body mass index (kg/m²)

36.5 + 6.6

 Overweight (25–29.9 kg/m²)

267 (15.7%)

 Class I obesity (30–34.9 kg/m²)

495 (29.2%)

 Class II obesity (35–39.9 kg/m²)

479 (28.2%)

 Class III obesity (BMI of 40 kg/m² or greater)

456 (26.9%)