TABLE 2

Survival rates (%) and 95% confidence intervals for 1585 PiZZ subjects and 5999 controls stratified by smoking habits

Ever-smokersNever-smokers
PiZZControlsPiZZControls
Subjects n85428207313179
5-year88 (86–90)98 (97–98)91 (89–93)98 (98–99)
10-year75 (71–78)94 (93–95)81 (78–84)96 (95–97)
15-year62 (58–66)88 (87–89)74 (70–78)92 (91–93)
20-year48 (44–52)81 (79–83)69 (65–73)87 (85–88)