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Table 1 Timeline of data collection

From: The risk factors of vertebral refracture after kyphoplasty in patients with osteoporotic vertebral compression fractures: a study protocol for a prospective cohort study

Data collection Pre Op 1 m 3 m 12 m 24 m OR
Demographic information Gender       
Life style Tobacco consumption  
Bone metabolic status BMD  
Bone metabolic markers  
Anti-osteoporosis treatment  
Sex hormone Serum hormone concentrations  
Clinical characteristics Affected vertebra number       
VAS score  
Surgical features Balloon volume       
Cement volume       
Vertebral height   
Bone cement leakage       
  1. Pre: pre-operation. Op: operation. 1 m, 3 m, 12 m, 24 m: one month, three months, 12 months, 24 months postoperatively. OR Orthopedist review