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Table 1 Demographic comparison of the two groups at baseline

From: Correlations between the feature of sagittal spinopelvic alignment and facet joint degeneration: a retrospective study

  Group A Group B P-value
No. of subjects (n)
 L2/3 125 15 -
 L3/4 112 28 -
 L4/5 86 54 -
 L5/S1 71 69 -
Age (years)
 L2/3 34.99 ± 3.01 34.33 ± 3.09 0.427
 L3/4 35.08 ± 3.00 34.29 ± 3.06 0.214
 L4/5 34.60 ± 3.00 35.43 ± 3.00 0.118
 L5/S1 34.55 ± 2.95 35.30 ± 3.06 0.140
Gender (Female:Male)
 L2/3 68:57 7:8 0.570
 L3/4 60:52 15:13 1.000
 L4/5 46:40 29:25 0.980
 L5/S1 39:32 36:33 0.743
Height of lumbar intervertebral disc (mm)
 L2/3 9.70 ± 0.50 9.54 ± 0.41 0.252
 L3/4 9.69 ± 0.44 9.65 ± 0.67 0.687
 L4/5 9.91 ± 0.46 9.89 ± 0.61 0.843
 L5/S1 10.06 ± 0.480 9.96 ± 0.46 0.215