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. Author manuscript; available in PMC: 2013 Oct 5.
Published in final edited form as: JAMA. 2013 Mar 13;309(10):1014–1021. doi: 10.1001/jama.2013.1644

Table 4.

Association between smoking cessation, weight change, and CVD events

No diabetes
Smokers (ref) Former smokers Non smokers
Quit for ≤ 4 y Quit for > 4 y
Person-exams 1924 591 3761 3392
No. of CVD events 143 29 218 116
Age-, sex-adjusted IR of
CVD/100 person-exams 3.06 (2.56-
(95% CI) 5.89 (4.86-7.11) 3.22 (2.06-4.50) 3.67) 2.43 (1.95-3.03)
Age-, sex-adjusted HR 0.50 (0.37-
(95% CI) 1 0.50 (0.25-1.00) 0.68) 0.32 (0.22-0.45)
CVD risk factors- 0.46 (0.34-
adjusted HR(95% CI) 1 0.47 (0.23-0.94) 0.63) 0.30 (0.21-0.44)
CVD risk factors-+ weight
change-adjusted HR (95% 0.46 (0.34-
CI) 1 0.49 (0.24-0.99) 0.63) 0.31 (0.21-0.44)

Diabetes
Smokers (ref) Former smokers Non smokers
Quit for ≤ 4 y Quit for > 4 y

Person-exams, n 279 92 603 506
No. of CVD events 23 8 59 35
Age-, sex-adjusted IR of
CVD/100 person-exams 7.03 (4.54- 6.11 (2.89-
(95% CI) 10.63) 12.37) 6.53 (4.73-8.96) 4.70 (3.17-6.89)
Age-Sex-adjusted HR
(95% CI) 1 0.49 (0.11-2.16) 0.53 (0.27-1.06) 0.41 (0.19-0.86)
CVD risk factors-
adjusted HR (95% CI) 1 0.49 (0.11-2.20) 0.56 (0.28-1.14) 0.49 (0.22-1.08)
CVD risk factors-+ weight
change-adjusted HR (95%
CI) 1 0.49 (0.11-2.19) 0.57 (0.28-1.15) 0.49 (0.22-1.09)

CVD=cardiovascular disease, IR= incidence rate, HR = Hazard Ratio, CI = Confidence Interval, BMI = body-mass index, ref = reference

Adjusted for age, sex, alcohol consumption, self-reported family history of diabetes, systolic, blood pressure, HDL-cholesterol, LDL-cholesterol, triglycerides, baseline BMI, cholesterol lowering treatment, anti-hypertension treatment