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Table 5 Association between potential predictors and smoking status at week 52 - for those randomized

From: Extended interactive voice response telephony (IVR) for relapse prevention after smoking cessation using varenicline and IVR: a pilot study

Variable Smoking (n = 14) Not smoking (n = 26) p-value1
Treatment group   0 .333
  Control 5 (26.3%) 14 (73.7%)  
  Extended IVR 9 (42.9%) 12 (57.1%)  
Sex   0.736
  Male 8 (32.0%) 17 (68.0%)  
  Female 6 (40.0%) 9 (60.0%)  
Present living status   0.510
  Married/Cohabiting 6 (28.6%) 15 (71.4%)  
  Single/Others2 8 (42.1%) 11 (57.9%)  
Age at baseline   0.966
  Median (IQR) 57.5 (50.0, 63.0) 59.0 (48.0, 64.0)  
  Mean (SD) 56.3 (8.5) 55.3 (11.8)  
  Min & max (41.0, 69.0) (27.0, 73.0)  
Weight at baseline (kg)   0.092
  Median (IQR) 69.7 (64.2, 77.4) 80.9 (68.1, 91.5)  
  Mean (SD) 72.9 (15.4) 82.4 (19.8)  
  Min & max (55.1, 111.0) (48.4, 136.0)  
Waist at baseline (cm)   0.072
  Median (IQR) 87.8 (83.0, 95.0) 96.5 (89.0, 103.5)  
  Mean (SD) 90.1 (13.6) 97.3 (13.9)  
  Min & max (71.0, 125.5) (72.5, 134.0)  
Number of cigs. smoked per day at baseline   0.493
  Median (IQR) 19.0 (12.0, 25.0) 17.0 (13.0, 20.0)  
  Mean (SD) 18.9 (8.4) 16.9 (7.3)  
  Min & max (7.0, 37.0) (6.0, 40.0)  
  1. 1Depending on the type of the variable, p-value is based on Fisher’s exact test or Wilcoxon rank-sum test.
  2. 2Others include widowed, separated, divorced and coupled (not cohabiting).