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Table 2 Demographic data

From: Lateral lumbar interbody fusion (LLIF) reduces total lifetime cost compared with posterior lumbar interbody fusion (PLIF) for single-level lumbar spinal fusion surgery: a cost-utility analysis in Thailand

Characteristics

LLIF (n = 59)

PLIF (n = 77)

P value

Gender, n (%)

   

Male

17 (28.8%)

33 (42.9%)

0.092

Female

42 (71.2%)

44 (57.1%)

 

Age (years) (mean + SD)

62.76 ± 11.60

61.75 ± 11.72

0.618

BMI (kg/m2) (mean ± SD)

25.09 ± 4.09

25.41 ± 3.81

0.642

Underlying diseases, n (%)

   

Hypertension

32 (54.2%)

34 (44.2%)

 

DM

8 (13.6%)

10 (13%)

 

Coronary artery disease

4 (6.8%)

5 (6.5%)

 

Diagnosis, n (%)

   

Spinal stenosis

26 (44.1%)

32 (41.6%)

 

Spondylolisthesis

28 (47.5%)

42 (54.5%)

 

Degenerative disc disease

5 (8.5%)

3 (3.9%)

 

Level of spine, n (%)

   

L2–L3

3 (5%)

1 (1.3%)

 

L3–L4

15 (25.4%)

5 (6.5%)

 

L4–L5

41 (69.5%)

50 (64.9%)

 

L5–S1

0 (0%)

21 (27.3%)

 

Estimate blood loss (ml) (mean ± SD)

167.03 (161.9)

458.96 (304.36)

< 0.001*

Operative time (min) (mean ± SD)

222.8 (73.32)

194.62 (46.13)

0.007*

Length of hospital stay (days) (Mean ± SD)

8.8 (9.74)

8.34 (4.95)

0.721

  1. BMI, body mass index; DM, diabetes mellitus; LLIF, lateral lumbar interbody fusion; PLIF, posterior lumbar interbody fusion
  2. *Significance: P value less than 0.05. Statistical analysis by independent-sample t-test and chi-squared test