2006
(N=17)

2008
(N=72)

p

Age [years]; median (25%-75% quartiles)

67.3
(44.8-74.0)

59.9
(50.5-74.4)

0.78

Nodule size [mm]; median (25%-75% quartiles)

6.82
(3-10)

5.96
(4-7)

0.42

High risk (%)*

52.9

48.6

0.79