Table 1.

Demographic and clinicopathologic information.

Variable	Young women (n of 18), n (%)	Matched cohort (n of 36), n (%)	P value
Mean age, years (95% CI)	37.3 (34.3–40.3)	47.9 (43.7–52.0)	0.0010
Number of women/number of men	18/0 (100/0)	11/25 (31/69)
Charlson comorbidity Index (CCI)			0.22
CCI ≤ 2	15 (83)	23 (64)
CCI = 3	3 (17)	9 (25)
CCI > 3	0 (0)	4 (11)
Smoking history			0.79
Current	3 (17)	9 (25)
Former	6 (33)	11 (31)
Never	9 (50)	16 (44)
Pack-years (mean)	13.1	24.5	0.08
Alcohol abuse history			0.69
Former/current	3 (17)	6 (17)
Never	15 (83)	30 (83)