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Table 1 Demographics for the GSP intervention group and control group

From: Perioperative smoking cessation in vascular surgery: challenges with a randomized controlled trial

  GSP intervention Control group
Number of patients: N = 11 N = 17
Age (years) 61 (39–72) 65 (52–80)
Male gender 9 (82) 13 (76)
Acute operation 6 (55) 8 (50)
Cigarettes per day 22 (10–50) 14 (2–50)
Educational level:   
 Missing information 3 3
Primary school 5 (45) 9 (53)
High school/college/university 3 (27) 5 (29)
Occupation:   
 Missing information   1
Working 2 (18) 4 (24)
Retired 9 (82) 12 (71)
  1. Data are from time of inclusion, given as number (%) or median (range)
  2. GSP Gold Standard Program