Table 3. Summary of the sample characteristics of 106 patients who underwent both MRI scan of lumbar spine and genetic association analysis.
| Variable | N (%) | |
|---|---|---|
| Total patients | 106 | |
| Socio demographics | ||
| Age | Mean | 52.42 ± 9.42 |
| 20–29 years | 3 (2.8) | |
| 30–39 years | 7 (6.6) | |
| 40–49 years | 22 (20.8) | |
| 50–59 years | 51 (48.1) | |
| 60–69 years | 23 (21.7) | |
| Gender | Female | 74 (69.8) |
| Male | 32 (30.2) | |
| Body mass index | Normal (18–24.9 kg/m2) | 37 (34.9) |
| Overweight (25–29.9 kg/m2) | 42 (39.6) | |
| Obese (≥ 30 kg/m2) | 27 (25.5) | |
| MRI assessment | ||
| Lumbar disc degeneration | Grade 1 | 0 (0.0) |
| (maximum grade) | Grade 2 | 7 (6.6) |
| Grade 3 | 56 (52.8) | |
| Grade 4 | 36 (34.0) | |
| Grade 5 | 7 (6.6) | |
| Lumbar disc herniation | Yes | 97 (91.5) |
| No | 9 (8.5) | |
| Lumbar disc extrusion | Yes | 45 (42.4) |
| No | 61 (57.6) | |