| 组别 | 例数 | 性别 | 年龄(岁) | 体质量 指数(kg/cm2) | 骨密度T 值(SD) | 致伤原因 | 受伤至 手术时 间(d) | 损伤节段 | ||||||||
| 男 | 女 | 跌倒 | 抬重物时扭伤 | T10 | T11 | T12 | L1 | L2 | L3 | L4 | ||||||
| A | 49 | 17 | 32 | 71.53 ± 5.36 | 20.93 ± 1.56 | −2.81 ± 0.28 | 22 | 27 | 3.55 ± 1.23 | 7 | 7 | 9 | 10 | 8 | 7 | 1 |
| B | 58 | 24 | 34 | 72.12 ± 5.72 | 20.80 ± 1.64 | −2.93 ± 0.37 | 28 | 30 | 3.78 ± 1.19 | 8 | 9 | 13 | 13 | 11 | 4 | 0 |
| 统计值Statistic |
| χ2 = 0.502 P = 0.479 | t = −0.547 P = 0.586 | t = 0.408 P = 0.684 | t = 1.880 P = 0.063 | χ2 = 0.122 P = 0.727 | t = −0.962 P = 0.338 | χ2 = 2.991 P = 0.810 | ||||||||