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Table 4 Specific value between CBT and TT in different segments on different decades of females

From: Differences in bone mineral density of trajectory between lumbar cortical and traditional pedicle screws

Segment/CBT/TT

Total

20–29

30–39

40–49

50–59

60–69

Above 70

Total

1.95 ± 0.47

1.72 ± 0.35

1.91 ± 0.39

1.86 ± 0.59

1.93 ± 0.50

2.08 ± 0.50

2.11 ± 0.39

L1

1.64 ± 0.33*∆‡

1.49 ± 0.18*

1.75 ± 0.25

1.43 ± 0.40∆‡

1.51 ± 0.22*∆‡

1.67 ± 0.23*∆‡

1.91 ± 0.38

L2

1.74 ± 0.32€†•

1.55 ± 0.20

1.76 ± 0.23

1.54 ± 0.21

1.72 ± 0.33

1.79 ± 0.23†•

2.02 ± 0.40

L3

1.98 ± 0.36£

1.83 ± 0.44

1.90 ± 0.31

1.98 ± 0.39

2.00 ± 0.47

2.14 ± 0.31

2.02 ± 0.40£

L4

2.09 ± 0.47&

1.78 ± 0.38

2.08 ± 0.39

2.06 ± 0.32

2.05 ± 0.46

2.32 ± 0.57

2.20 ± 0.27

L5

2.27 ± 0.56

1.93 ± 0.27

2.08 ± 0.39

2.31 ± 0.91

2.35 ± 0.52

2.49 ± 0.54

2.42 ± 0.47

  1. #L1 versus L2 significant difference
  2. *L1 versus L3 significant difference
  3. L1 versus L4 significant difference
  4. L1 versus L5 significant difference
  5. L2 versus L3 significant difference
  6. L2 versus L4 significant difference
  7. L2 versus L5 significant difference
  8. £L3 versus L5 significant difference
  9. &L4 versus L5 significant difference