smoking cessation and e-cigarettes · uk (8/15): support us (10/15): no recommendation...
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Smoking Cessation and E-cigarettes
Elisa Tong, MD, MA
Associate Professor of Internal Medicine
University of California, Davis Medical Center
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Objectives
• Understand tobacco use prevalence
• Describe recommendations and evidence for e-cigarettes and cessation
• List public health concerns about e-cigarettes
• Utilize evidence-based smoking cessation medication and Chinese-language counseling resources
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What are E-Cigarettes?
• Battery-powered devices
• Heated aerosol
– Propylene glycol
– Nicotine
– Flavorings
– Other additives
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Tobacco and E-Cigarette UseNational Adult Tobacco Survey, US, 2013-2014
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2011-14 California Health Interview Survey
0%
10%
20%
30%
40%
Chinese Korean Vietnamese All Asian Males
English Proficient Limited
National smoking prevalence among adult men: 18.8%
California Asian American Men
Smoking prevalence among men in China: 52.9% (2010 GATS)
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VOTE
Recommend?
Not recommend?
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Differing Recommendations
UK (8/15): Support US (10/15): No recommendation
“Inadequate evidence on the benefit of ENDS to achieve tobacco cessation in adults or improve perinatal outcomes in infants…balance of benefits and harms cannot be determined”
“In a nutshell, best estimates show e-cigarettes are 95% less harmful to your health than normal cigarettes, and when supported by a smoking cessation service, help most smokers to quit tobacco altogether.”
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E-cig users vs. non-e-cig users among all smokers vs. interested to quit
• 37% less likely to quit cigarettes
Only 1 trial compared e-cig to nicotine patch (voucher)
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Public Health Concerns• Adolescent uptake
• Nicotine poisonings
• Vapor chemicals
• Exposure from secondhand vapor
• Lithium battery explosions
• Marketing tactics
• Long-term health effects
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• 2014 Chinese tobacco companies enter market
– Lunar New Year smoker gift
• Marketing claims from 18 websites of 12 e-cig manufacturers in China on Alibaba
– 89% health-related benefits
– 78% no smoke exposure
– 67% smoking cessation
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E-Cig Fact Sheet on www.asianarch.org
• Dangers, safety issues, not approved quitting aid
• Resources to help friend or family quit
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US FDA Authority to Start Regulating E-Cigarettes
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PHS Tobacco Treatment Guidelines:Counseling and Medication
ASK about tobacco USE and EXPOSURE
ADVISE tobacco users to QUIT
ASSESS READINESS to make a quit attempt
ASSIST with the QUIT ATTEMPT
ARRANGE FOLLOW-UP careREFER
to q
uitlin
e
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Long-term (> 6 month) Quit Rates Doubled for 7 FDA-approved Medications
0
5
10
15
20
25
30
Nicotine gum Nicotine
patch
Nicotine
lozenge
Nicotine
nasal spray
Nicotine
inhaler
Bupropion Varenicline
Active drug
Placebo
Data adapted from Cahill et al. (2008). Cochrane Database Syst Rev; Stead et al. (2008).
Cochrane Database Syst Rev; Hughes et al. (2007). Cochrane Database Syst Rev
Perc
en
t q
uit 18.0
15.8
11.3
9.9
16.1
8.1
23.9
11.8
17.1
9.1
19.0
10.311.2
20.2
Adapted from www.rxforchange.ucsf.edu
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Asian Smokers’ Quitline: Free Evidence-based Services
• Available nationwide– Operated by UC San Diego
– >10,000 callers since 2012
• FREE 2-weeks nicotine patches mailed to Asian-language smoker
• FREE in-language counseling in Cantonese or Mandarin
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Patient will be contacted in 1-2 business days by Helpline counselor.
Direct Referral Web Portalwww.asiansmokersquitline.org
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Extra Slides
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Provider Resources
• www.asiansmokersquitline.org
• www.asianarch.org
• www.ucquits.com
– Quick provider resources
– Brief training videos (free CME)
• www.stillblowingsmoke.org
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Evidence for ASQ Counseling
• Randomized trial of counseling vs. self-help materials– 2277 Asian smokers
• 729 Chinese-speaking smokers
• Counseling increased 6-month abstinence – Asian (16.4% vs. 8.0%,
p<0.001)
– Chinese (14.8% vs. 6.0%, p<0.001)
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E-cig users vs. non-e-cig users among longitudinal and cross-sectional studies
• 28% less likely to quit cigarettes
Dual use concern