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Table 5 Cumulative reoperation rates of fusion surgeries according to anatomic regions during the early period

From: Reoperations after fusion surgeries for degenerative spinal diseases depending on cervical and lumbar regions: a national database study

Early period (n = 206) Unadjusted value
P HR 95% CI
Region
 Cervical fusion   1.000  
 Lumbar fusion 0.7947 1.043 (0.758, 1.436)
Age (years)
 20–29   1.000  
 30–39 0.3929 0.542 (0.133, 2.208)
 40–49 0.5079 1.457 (0.478, 4.442)
 50–59 0.7599 1.173 (0.421,3.267)
 60–69 0.8674 1.090 (0.397, 2.994)
  ≥ 70 0.7939 1.144 (0.416, 3.144)
Gender
 Male   1.000  
 Female 0.8193 0.968 (0.733, 1.279)
Diabetes
 Yes 0.6594 0.938 (0.704, 1.248)
 No   1.000  
Associated comorbidities
 Yes 0.4081 0.890 (0.675, 1.173)
 No   1.000  
Hospital types
 Tertiary-referral hospital   1.000  
 General hospital 0.0050 1.610 (1.155, 2.244)
 Hospital 0.0865 0.704 (0.472, 1.052)
 Clinic 0.7124 0.689 (0.095, 4.993)