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Katz DA, Buchanan DM, Weg MWV, Faseru B, Horwitz PA, Jones PG, Spertus JA. Does outpatient cardiac rehabilitation help patients with acute myocardial infarction quit smoking?. Preventive medicine. 2019 Jan 1; 118:51-58.
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Abstract: Outpatient cardiac rehabilitation (OCR) reinforces patients' efforts to quit smoking, but the association between participation in OCR and long-term smoking status after acute myocardial infarction (AMI) is unknown. We studied hospitalized smokers with confirmed AMI from two multicenter prospective registries (PREMIER, from January 1, 2003, to June 28, 2004, and TRIUMPH, from April 11, 2005, to December 31, 2008) to describe the association of OCR participation with smoking cessation. Eligible patients smoked at least 1 cigarette per day on average in the 30?days prior to enrollment and completed 12-month follow-up (N? = 1307). Structured interviews were completed on subjects at baseline and during follow-up. OCR participation and abstinence from smoking within the prior 30-days (30-day point prevalence abstinence, PPA) were self-reported. We constructed a propensity model of OCR participation based on 22 baseline sociodemographic and clinical characteristics, and constructed hierarchical modified Poisson regression models of 30-day PPA at 12?months after matching on the propensity for OCR participation (with clinical site treated as a random effect). Seventy-four percent of subjects were referred to OCR at hospital discharge, but only 36% participated during follow-up. At 12-month follow-up, 30-day PPA was 57% in OCR participants, compared to 41% in matched OCR non-participants. Participation in OCR was a significant predictor of 30-day PPA at 12?months (adjusted RR 1.38, 95% CI 1.20-1.57). In conclusion, smokers who participated in OCR were significantly more likely to abstain from smoking 12?months after AMI hospitalization.

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