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Table 1 Comparison of patient characteristics between ASDis group and N-ASD group

From: Estimation of the ideal correction of lumbar lordosis to prevent reoperation for symptomatic adjacent segment disease after lumbar fusion in older people

Characteristic

ASDis (n = 62)

N-ASD (n = 62)

χ2/t

p

Age, year

61.65 ± 8.43

61.39 ± 8.14

0.17

0.863

BMI, kg/m 2

24.75 ± 3.27

24.73 ± 3.20

0.03

0.975

Sex (M/F)

25/37

25/37

0

1

Diabetes (Y)

19 (30.6%)

20 (32.3%)

0.04

0.847

Hypertension (Y)

34 (54.8%)

25 (40.3%)

2.62

0.106

Smoking (Y)

8 (12.9%)

9 (14.5%)

0.07

0.794

Drinking (Y)

8 (12.9%)

10 (16.1%)

0.26

0.610

Lumbar BMD (T scores)

−1.66 ± 1.33

−1.34 ± 1.40

−1.29

0.2

Follow-up (months)

37.98 ± 6.93

38.35 ± 8.04

−0.275

0.784

Disease

 DS

30 (48.4%)

22 (35.5%)

3.23

0.199

 FS

20 (32.3%)

20 (32.3%)

  

 DH

12 (19.4%)

20 (32.3%)

  

Fusion method

 PLF

38 (61.3%)

33 (53.2%)

0.824

0.364

 PLIF

24 (38.7%)

29 (46.8%)

  

Segments fused

  ≤ 2 segments

29 (46.8%)

27 (43.5%)

0.13

0.718

  > 2 segments

33 (53.2%)

35 (56.5%)

  
  1. Values are presented in mean ± standard error (SE) or percentages
  2. Y Yes, BMI Body mass index, DH Disc herniation, DS Degenerative spondylolisthesis, FS Foraminal stenosis, PLF Posterolateral fusion, PLIF Posterior lumbar interbody fusion, BMD Bone mineral density