Table 1.

Demographic characteristics of the patients at baseline.

Patient Characteristics	Former Smokers	Current Smokers	Total	p Value
Number of subjects	133	126	259
Male/Female	88/45	79/47	167/92	0.30
Age (years)	46.8 ± 13.4	44.6 ± 13.0	45.9 ± 13.2	0.60
Duration of smoking (years)	27.3 ± 12.6	27.7 ± 12.4	27.5 ± 12.5	0.65
GMR (%)	26.0 ± 18.4	27.5 ± 21.1	26.7 ± 19.8	0.89
Follow-up period (years)	4.50 ± 2.15	3.79 ± 1.17	4.15 ± 1.77	0.01
Duration of smoking cessation (years)	3.14 ± 1.95	-