Assessment of Cotinine Reveals a Dose-Dependent Effect of Smoking Exposure on Long-term Outcomes After Renal Transplantation

Autor: Stephan J. L. Bakker, Douwe Postmus, Willem J. van Son, Merel E. Hellemons, Gerjan Navis, Anneke C. Muller Kobold, Rijk O. B. Gans, Marc A. Seelen, Jan-Stephan F. Sanders
Přispěvatelé: Groningen Kidney Center (GKC), Groningen Institute for Organ Transplantation (GIOT), Lifestyle Medicine (LM), Methods in Medicines evaluation & Outcomes research (M2O), Value, Affordability and Sustainability (VALUE), Guided Treatment in Optimal Selected Cancer Patients (GUTS)
Rok vydání: 2015
Předmět:
Zdroj: Transplantation, 99(9), 1926-1932. LIPPINCOTT WILLIAMS & WILKINS
ISSN: 0041-1337
DOI: 10.1097/tp.0000000000000636
Popis: BACKGROUND: Smoking is a risk factor for poor late outcomes in renal transplant recipients (RTR). Smoking exposure can be assessed by self-report and cotinine measurements. We investigated whether use of cotinine as a biomarker for smoking exposure can serve as an alternative for self-report and to compare associations of smoking exposure by self-report and cotinine with outcomes in RTR and assess dose dependency.METHODS: Renal transplant recipients were classified as never, former, light (≤10 cigarettes/day), and heavy smokers (>10 cigarettes/day) according to self-report and analogous categories for urine and plasma cotinine. First, we assessed agreement of self-reported smoking exposure with smoking exposure according urine and plasma cotinine. Second, we compared the associations with graft failure and mortality.RESULTS: Of 603 RTR (age 51.5 ± 12.1 years, 55% men), 36.0% RTR were never, 42.3% former, 10.6% light, and 11.1% heavy smokers according to self-report. The majority (98.6%) of never smokers had nondetectable cotinine. However, 14 and 13 RTR reporting no active smoking had respective urine or plasma cotinine consistent with active smoking. Cotinine-based measurements were dose-dependently associated with mortality and graft failure.CONCLUSIONS: Plasma and urine cotinine can serve as an alternative to self-report and were dose-dependently associated with poor late outcomes in RTR.
Databáze: OpenAIRE