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Table 2 Comparison of postoperative clinical results in group A and group B

From: Vertebral fracture in elderly female patients after posterior fusion with pedicle screw fixation for degenerative lumbar pathology: a retrospective cohort study

Parameter group A
(n = 53)
group B
(n = 72)
P value
Follow up, mean (SD), (months) 76.8 (40.5) 103.5 (51.0) 0.002
Postoperative vertebral fracture, n (%) 22 (41.5) 17 (23.6) 0.02
Types of vertebral fracture, n (%)    0.18
 adjacent level 7 (31.8) 6 (35.3)  
 remote level 8 (36.3) 7 (41.1)  
 instrumented level 7 (31.8) 4 (23.5)