Table 3. All-Cause Mortality Risk by Years Since Cessation Among Former Daily and Nondaily Smokers Compared With Risk Among Never Smokersa.
No. of years since quitting | Total No.b | Deaths, No. | HR (95% CI)c |
---|---|---|---|
Never smoker | 281 000 | 20 500 | 1 [Reference] |
Former daily smoker | |||
<2 | 5900 | 750 | 2.18 (2.03-2.35) |
2 to <5 | 8900 | 1100 | 1.96 (1.84-2.08) |
5 to <10 | 11 000 | 1500 | 1.69 (1.60-1.78) |
≥10 | 44 500 | 7900 | 1.18 (1.15-1.22) |
Former nondaily smoker | |||
<2 | 1100 | 50 | 1.20 (0.91-1.59) |
2 to <5 | 1600 | 100 | 1.57 (1.29-1.90) |
5 to <10 | 1900 | 100 | 1.36 (1.14-1.63) |
≥10 | 10 500 | 1300 | 1.09 (1.04-1.15) |
Abbreviations: DRB, Disclosure Review Board; HR, hazard ratio.
US Census Bureau’s DRB release number CBDRB-FY19-262.
Unweighted numbers were rounded following the disclosure avoidance guidelines by the US Census Bureau’s DRB: if the number is less than 15, report it; if the number is between 15 and 99, round to the nearest 10; if the number is between 100 and 999, round to the nearest 50; if the number is between 1000 and 9999, round to the nearest 100; if the number is between 10 000 and 99 999, round to the nearest 500; if the number is between 100 000 and 999 999, round to the nearest 1000; and if the number is 1 000 000 or more, round to 4 significant digits.
Adjusted for sex, race/ethnicity (non-Hispanic white, non-Hispanic black, Hispanic, and non-Hispanic other), education (<high school, high school, some college, and college), survey year (1992-1993, 1995-1996/1998-1999, 2000/2001-2002/2003, 2006-2007, and 2010-2011), and ratio of standardized income to the poverty level (<50%, 50% to <100%, 100% to <200%, 200% to <400%, ≥400%, and missing).