Table 1: Comparison of elderly and young control group for demographic characteristics and evaluation parameters.
| Elderly group | Control group | p value | |
| Age (years) | 72 (65-85) | 42.5 (30-50) | < 0.001 |
| Gender (female/male) |
68/10 (87%-13%) |
34/10 (77%-23%) |
0.156 |
| BMI (kg/m2) | 26.4 (21.3-35.84) | 24.76 (20.24-35.99) | 0.059 |
| PPT | 6 (3-11) | 8.9 (4-14) | < 0.001 |
| GDS | 9 (2-16) | 5.5 (1-19) | 0.048 |
| Global PSQI | 8 (3-16) | 4 (0-11) | < 0.001 |
| Component 1 | 1 (0-3) | 1 (0-2) | < 0.001 |
| Component 2 | 2 (0-3) | 1 (0-2) | < 0.001 |
| Component 3 | 0 (0-2) | 0 (0-2) | 0.074 |
| Component 4 | 1 (0-3) | 0 (0-2) | < 0.001 |
| Component 5 | 2 (1-3) | 1 (0-2) | < 0.001 |
| Component 6 | 0 (0-3) | 0 (0-3) | 0.788 |
| Component 7 | 1 (0-3) | 0.5 (0-2) | < 0.001 |
BMI: Body mass index; PPT: Pain pressure treshold; GDS: Geriatric depression score; PSQI: Pitsburg sleep quality index;
Component 1: Subjective sleep quality; Component 2: Sleep latency; Component 3: Sleep duration; Component 4: Habitual sleep efficiency;
Component 5: Sleep disturbances; Component 6: Use of sleeping medication; Component 7: Daytime dysfunction.