Interval changes on follow-up US examinationsa

Decreased Group (n = 25)Stable Group (n = 133)Increased Group (n = 14)P Value
Follow-up intervals (mo)18.2 ± 10.6b25.2 ± 13.3b29.9 ± 14.1.009
Maximal diameter on initial US (mm)10.8 ± 5.8c8.3 ± 3.2c9.3 ± 4.2.042
US feature changes of8 (32%)20 (15%)3 (21.4%).12
    Internal echogenicity053
    Wall thickness281.27
    Presence of posterior enhancement491
    Internal septa220
    Solid component000

  • ↵a Continuous variables are presented as means. Categoric variables are presented as numbers (percentages).

  • ↵b and c Post hoc analysis was evaluated by the Bonferroni correction method. The same letters indicate a significant difference between groups.