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Table 1 Characteristics of 8,966 wait-listed patients and 10,467 directly admitted patients isolated coronary artery bypass surgery in British Columbia 1991–2001

From: Cumulative incidence for wait-list death in relation to length of queue for coronary-artery bypass grafting: a cohort study

Characteristic Wait-Listed patients N(%)   Direct admissions N(%)  
Age group (yr)     
   <50 yr 717 (8.0) 808 (7.7)
   50–59 yr 1966 (21.9) 2082 (19.9)
   60–69 yr 3425 (38.2) 3689 (35.2)
   70–79 yr 2676 (29.8) 3509 (33.5)
   ≥80 yr 182 (2.0) 379 (3.6)
Sex     
   Women 1581 (17.6) 2313 (22.1)
   Men 7385 (82.4) 8154 (77.9)
Period of registration/surgery     
   1991–1992 1675 (18.7) 1770 (16.9)
   1993–1994 1859 (20.7) 1526 (14.6)
   1995–1996 1867 (20.8) 1686 (16.1)
   1997–1998 1853 (20.7) 1997 (19.1)
   1999–2000 1712 (19.1) 2454 (23.4)
   2001    1034 (9.9)
Urgency at registration/surgery     
   Urgent 515 (5.7) 5353 (51.1)
   Semi-urgent 6444 (71.9) 4536 (43.3)
   Non-urgent 2007 (22.4) 523 (5.0)
   Not provided    55 (0.5)
Comorbidity at registration/surgery     
   Major conditions 1930 (21.5) 4040 (38.6)
   Other conditions 2304 (25.7) 5268 (50.3)
   None 4732 (52.8) 1159 (11.1)
Wait-list clearance time     
   1 month or less 6512 (72.6)   
   more than 1 month 2454 (27.4)   
  1. congestive heart failure, diabetes, chronic obstructive pulmonary disease, rheumatoid arthritis, cancer
  2. peripheral vascular disease, cerebrovascular disease, dementia, peptic ulcer disease, hemiplegia, renal disease, or liver disease