Table 1.

Demographic data and descriptive analysis

Characteristics	Value
Number	868
Gender, M/F (%)	31.2/68.8
Age (years)	49.6±10.7
Educational status (years)	8.5±5.3
Weight (kg)	67±15
FTND Score*	6±2 (0–10)
COex (ppm)	22±12
Age of initiation (years)*	15±5.7 (3–62)
Number of cigarettes/day	25±20
Pack‐years	39.7±21.7
Respiratory comorbidities (%)	25
Cardiovascular comorbidities (%)	34
Neuropsychiatric comorbidities (%)	51
Time from last cigarette at first appointment (min)	120±232 (2–1440)

^*Expressed in mean±SD (range).

COex  =  exhaled CO; FTND  =  Fagerström test for nicotine dependence; SD  =  standard deviation.