| Parameter | Respondents (n = 239) | |
| r | p | |
| Age | 0.184* | 0.004 |
| Sex | −0.207* | 0.001 |
| BMI | −0.088 | 0.175 |
| Education | −0.164* | 0.011 |
| Family income | −0.722* | 0.000 |
| Marital status | 0.238* | 0.000 |
| Smoking habit | −0.003 | 0.960 |
| Area of residence | 0.256* | 0.000 |