Table 1

Baseline characteristics of participants

Placebo patch

(N=53-59)*

Nicotine patch

(N=56-58)*

Age (SD) in years 43.8 (11.0) 45.3 (10.8)
Cigarette consumption (SD) 17.4 (8.1) 18.7 (8.0)
Baseline CO (SD) 21 (10.4) 21 (8.5)
FTND (SD) 4.9 (2.6) 4.8 (2.2)
Age when started smoking (SD) 17.4 (6.8) 18.4 (5.5)
Number of previous quit attempts (SD) 2.8 (1.1) 2.9 (1.2)
Male N (%) 40 (68) 38 (66)
White British N (%) 36 (61) 37 (64)
Married N (%) 16 (27) 15 (26)
Left school at 16 N (%) 48 (41) 46 (40)
Hand-rolled cigs N (%) 12 (20) 11 (19)
Partner smokes N (%) 15 (25) 15 (26)
In paid employment N (%) 49/58* (85) 41 (71)
Body mass Index (SD) 26 (4.6) 27 (4.8)

* Ns differ due to missing data.

Hajek et al.

Hajek et al. BMC Medicine 2013 11:140   doi:10.1186/1741-7015-11-140

Open Data