close to significancep = 0.057
CF cases carrying any SERPINA1 mutation showed a numerical increase in the number of mild exacerbations close to significance (10.7 (9.7) vs. 13.1 (12.1); p = 0.057), with no difference in severe exacerbations (2.1 (4.1) vs. 2.3 (3.1); p = 0.415) over the follow-up.