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Table. 1 Characteristic of patients with vertebral fracture and their matched cohorts (1990–2016)

From: Vertebral fracture as a risk factor for self-harm: a retrospective cohort study

Factor Exposed (%)(n = 16,293) Unexposed (%)(n = 16,293) p-value
Mean age at index (SD) 74.84 (10.7) 74.31 (11.2) < 0.001
Females 11,549 (70.1) 11,549 (70.1) 1.000
Median years follow-up (IQR) 4.1 (2.3, 7.1) 4.8 (2.5. 8.7) < 0.001
Deprivation status
  Q1 (Least deprived) 3763 (23.1) 3059 (18.8) < 0.001
  Q2 2911 (17.9)) 2786 (17.1)  
  Q3 2947 (18.1) 3335 (20.5)  
  Q4 3284 (20.1) 3603 (22.1)  
  Q5 (Most deprived) 3388 (20.8) 3510 (21.5)  
BMI (kg/m2)
  Underweight (< 18.5) 590 (3.6) 136 (0.8) < 0.001
  Healthy weight (< 18.5–24.9) 6036 (37.1) 2136 (13.1)  
  Overweight (25.0-29.9) 4955 (30.4) 2213 (13.6)  
  Obese (> 30.0) 2467 (15.1) 1267 (7.8)  
  Missing 2245 (13.8) 10,541 (64.7)  
Smoking
  Never/Ex smoked 5656 (34.7) 12,908 (79.2) < 0.001
  Current smoker 962 (5.9) 2373 (14.6)  
  Missing 9675 (59.4) 1012 (6.2)  
Alcohol consumption
  Never/Ex-drinker 1719 (10.6) 3881 (23.8) < 0.001
  Current 1–9 drinks per week 3387 (20.8) 7879 (48.4)  
  Current > = 10 drinks per week 663 (4.1) 2240 (13.7)  
  Missing 10,524 (64.6) 2293 (14.1)  
  Anxiety 3350 (20.6) 1690 (10.4) < 0.001
  Depression 4505 (27.7) 2330 (14.3) < 0.001