Demographic variable in case and control groups
| Demographic variable | Case (n=44) | Control (n=42) | P value | |
| Age (years) | 56.25±14.60 | 56.9±15.20 | 0.839 | |
| BMI (kg/m2) | 27.36±4.78 | 26.59±4.76 | 0.458 | |
| Education (n (%)) | Unlettered | 4 (9.1) | 4 (9.1) | 0.589 |
| Under diploma | 11 (9.5) | 12 (28.6) | ||
| Diploma | 15 (34.1) | 7 (16.7) | ||
| Licentiate | 8 (18.2) | 10 (23.8) | ||
| Master | 4 (9.1) | 6 (14.3) | ||
| Doctorate | 2 (4.5) | 3 (7.1) | ||
| Gender | male participant (n (%)) | 25 (45.5) | 30 (54.9) | 0.118 |
| female participant (n (%)) | 19 (43.2) | 12 (28.6) | ||
BMI, body mass index.