Smoking (patient information)

For the WikiDoc page for this topic, click here

WikiDoc Resources for Smoking (patient information)
Articles
Most recent articles on Smoking (patient information) Most cited articles on Smoking (patient information) Review articles on Smoking (patient information) Articles on Smoking (patient information) in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Smoking (patient information) Images of Smoking (patient information) Photos of Smoking (patient information) Podcasts & MP3s on Smoking (patient information) Videos on Smoking (patient information)
Evidence Based Medicine
Cochrane Collaboration on Smoking (patient information) Bandolier on Smoking (patient information) TRIP on Smoking (patient information)
Clinical Trials
Ongoing Trials on Smoking (patient information) at Clinical Trials.gov Trial results on Smoking (patient information) Clinical Trials on Smoking (patient information) at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Smoking (patient information) NICE Guidance on Smoking (patient information) NHS PRODIGY Guidance FDA on Smoking (patient information) CDC on Smoking (patient information)
Books
Books on Smoking (patient information)
News
Smoking (patient information) in the news Be alerted to news on Smoking (patient information) News trends on Smoking (patient information)
Commentary
Blogs on Smoking (patient information)
Definitions
Definitions of Smoking (patient information)
Patient Resources / Community
Patient resources on Smoking (patient information) Discussion groups on Smoking (patient information) Patient Handouts on Smoking (patient information) Directions to Hospitals Treating Smoking (patient information) Risk calculators and risk factors for Smoking (patient information)
Healthcare Provider Resources
Symptoms of Smoking (patient information) Causes & Risk Factors for Smoking (patient information) Diagnostic studies for Smoking (patient information) Treatment of Smoking (patient information)
Continuing Medical Education (CME)
CME Programs on Smoking (patient information)
International
Smoking (patient information) en Espanol Smoking (patient information) en Francais
Business
Smoking (patient information) in the Marketplace Patents on Smoking (patient information)
Experimental / Informatics
List of terms related to Smoking (patient information)

Editor-in-Chief: Meagan E. Doherty

Smoking Risks

• Smoking increases the chance of heart disease. Several ingredients of tobacco lead to the narrowing of blood vessels, increasing the likelihood of a blockage, and thus a heart attack or stroke. According to a study by an international team of researchers, people under 40 are five times more likely to have a heart attack if they smoke.
• Smoking doubles your risk of having a heart attack when smoking a pack a day or more when compared with nonsmokers.
• A team of British scientists headed by Richard Doll carried out a longitudinal study of 34,439 medical specialists from 1951 to 2001, generally called the "British doctors study." The study demonstrated that smoking decreased life expectancy by 10 years and that almost half of the smokers died from diseases possibly caused by smoking (cancer, heart disease, and stroke). About 5,900 of the study participants are still alive and only 134 of them still smoke.
• Regular smokers are estimated to live to 2.5 to 10 years less than nonsmokers.

The Risks of Second Hand Smoke

• People exposed to second hand smoke increase their risk of heart disease 25-30%
• Exposure to second hand smoke increases your risk of developing lung disease, heart disease and certain types of cancer.
• Second hand smoke causes approximately 3,000 lung cancer deaths each year in nonsmokers.
• Approximately 46,000 nonsmokers who live with smokers and are exposed to second hand smoke on a regular basis die each year from heart disease.
• Even small doses of second hand smoke exposure pose an increased risk for heart disease. According to a Report of the Surgeon General in 2006 short term exposures to second hand smoke increase the stickiness of blood platelets, which increases the risk of myocardial infarction by damaging the lining of blood vessels and decreases blood flow through the coronary arteries.

How Quitting Impacts your Risk of Disease

Quitting smoking is extremely beneficial to your health and can, after time, even reverse some of the negative side effects that smoking has on your health:

• Abstaining from cigarettes for 1 year cuts your risk of heart attack in half when being compared to a currently active smoker.
• 5-15 years after quitting, your risk of having a stroke is comparable to that of and individual that never smoked. Around the 10 year mark your risk of developing lung cancer also decreases to that of a nonsmoker.
• 15 years after quitting, your risk of heart disease is comparable to someone who has never smoked.

Benefits of Smoking Bans: Communities That Don't Smoke

There is evidence that smoking bans instituted in certain cities have shown significant health effects in the general population:

• In the first 18 months after the town of Pueblo, Colorado enacted a smoking ban in 2003, hospital admissions for heart attacks dropped 27%. Admissions in neighboring towns without smoking bans showed no change.
• A 2007 study of the effect of the ban in Scotland showed that there was 17% year-on-year drop in heart attack admissions since the ban was introduced in March 2006. An analysis of the saliva of 39 non-smoking workers before and after the Scottish smoking ban came into force found a 75% fall in cotinine, which is a by-product of nicotine. The level of cotinine is a good indicator of how much cigarette smoke has entered the body.

Smoking Cessation Success Rates

Percent increase of success for six months over unaided attempts for each type of quitting (chart from West & Shiffman based on Cochrane review data)

• About 10% of people who quit unaided will remain non-smokers for 12 months.
• The American Cancer Society states,"that between about 25% and 33% of smokers who use medicines can stay smoke-free for over 6 months"
• Experts screened over 8700 research articles published between 1975 and 2007. More than 300 studies passed the criteria for the gold standard trials. Using these 300 studies for a meta-analysis of relevant treatments, it gives advice on smoking cessation treatment. An additional 600 reports were not included in the meta-analysis, but helped formulate the recommendations.

In general:

a) Control groups quit at a rate of around 10%.

b) Pharmacological treatments resulted in 15-33% quit rates.

d) Psychosocial interventions resulted in 14-25% quit rates.

e) Little or no evidence was found to support use of hypnosis, acupuncture, or laser therapy as treatments for smoking cessation, alternate medicine or cigarette substitutes.