SOD1 and osteoporosis: It was found that each additional unit of age (OR: 1.071, 95%CI: 1.047–1.096), osteoporosis (OR: 2.318, 95%CI: 1.442–3.726), SOD (OR: 0.959, 95%CI: 0.945–0.973), and GR (OR: 0.972, 95%CI: 0.953–0.992) significantly contributed to severe degeneration (Table 5).