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Table 1 Baseline characteristics by study group

From: Leptin and smoking cessation: secondary analyses of a randomized controlled trial assessing physical activity as an aid for smoking cessation

  Control (n = 136) Intervention (n = 135) p
Men, No (%) 81 (59.6) 77 (57.0) 0.674
Age [years], mean (SD) 42.7 (9.3) 41.7 (9.7) 0.419
Number of cig./d, median (IQR) 25 (20–30) 25 (20–30) 0.697
No of years of education, mean (SD) 12.6 (1.8) 12.5 (1.8) 0.782
Physical activity in >4 METS, median (IQR) 936 (188–2047)* 866 (190–2403)** 0.942
Weight [Kg], mean (SD) 70.7 (12.9) 71.8 (15.9) 0.526
BMI, mean (SD) 23.8 (3.23) 24.1 (4.12) 0.526
Percent of body fat, mean (SD) 25.6 (5.7) 25.8 (7.0) 0.876
HOMA-IR 2.22 (1.13) 2.45 (1.39) 0.17
Leptin [mg/l], median (IQR) 6.4 (4.2 - 11.7) 7.2 (4.3 - 12.2) 0.376
Ratio leptin/body fat [mg/l], median (IQR) 0.26 (0.17 - 0.43) 0.28 (0.19 - 0.48) 0.290
  1. † n = 135 ; ‡ n = 133 ; *n = 115 ; **n = 111