Featured Research

from universities, journals, and other organizations

Prevalence of heavy smokers in US decreases

Date:
March 16, 2011
Source:
JAMA and Archives Journals
Summary:
From 1965 to 2007, the population prevalence of persons who smoked 20 or more cigarettes per day declined significantly, and there was also a decrease in the prevalence of smoking 10 or more cigarettes a day, with these declines greater in California than in the rest of the US, according to a new study.

From 1965 to 2007, the population prevalence of persons who smoked 20 or more cigarettes per day declined significantly, and there was also a decrease in the prevalence of smoking 10 or more cigarettes a day, with these declines greater in California than in the rest of the U.S., according to a study in the March 16 issue of JAMA.

Related Articles


Throughout much of the early history of cigarette smoking in the United States, consumption was typically 1 pack (about 20 cigarettes) each day. Since the first surgeon general's report on smoking and health (1964), there has been a major decline in smoking prevalence. During this period, California has consistently led the United States in using public policies to reduce cigarette smoking, and there were faster declines in smoking prevalence in California compared with the remaining United States, as well as in lung cancer rates, according to background information in the article. "The intensity of smoking [such as number of cigarettes smoked per day], not just prevalence, is associated with future health consequences," the authors write.

John P. Pierce, Ph.D., of the University of California San Diego, La Jolla, and colleagues examined trends in smoking intensity for both California and the remaining United States using two large population-based surveys with state estimates: National Health Interview Surveys, 1965-1994; and Current Population Survey Tobacco Supplements, 1992-2007. There were 139,176 total respondents for California and 1,662,353 for the remaining United States.

The researchers found that in 1965, the prevalence of high intensity (20 or more cigarettes per day) of smoking among California adults did not differ from the remaining United States; prevalence of high-intensity smoking in California was 23.2 percent compared with 22.9 percent in the remaining United States, and these smokers represented 56 percent of all smokers. By 2007, this prevalence was 2.6 percent or 23 percent of smokers in California and 7.2 percent or 40 percent of smokers in the remaining United States.

The population prevalence of moderate-intensity smoking (10 or more cigarettes per day) in 1965 was 11.1 percent in California and 10.5 percent in the remaining United States; in 2007, the prevalence in California was 3.4 percent compared with 5.4 percent in the remaining United States.

"Among individuals (U.S. residents excluding California) born between 1920-1929, the prevalence of moderate/high-intensity smoking was 40.5 percent in 1965. Moderate/high-intensity smoking declined across successive birth cohorts, and for the 1970-1979 birth cohort, the highest rate of moderate/high-intensity smoking was 9.7 percent in California and 18.3 percent in the remaining United States. There was a marked decline in moderate/high-intensity smoking at older ages in all cohorts, but this was greater in California. By age 35 years, the prevalence of moderate/high-intensity smoking in the 1970-1979 birth cohort was 4.6 percent in California and 13.5 percent in the remaining United States," the authors write.

"The rapid decline in prevalence of 10 or more-cigarettes per day [CPD] smoking across birth cohorts in the mid-1960s is consistent with earlier reports of increased incidence of cessation that occurred following the dissemination of the early scientific reports that smoking caused cancer."

The researchers add that one of the reasons why the decline in moderate-intensity smoking has been greater in California than in the remaining United States is its comprehensive tobacco control programs.

The authors note that as expected, the large decline in the prevalence of pack-a-day smoking has been reflected in declines in lung cancer deaths in California and the U.S.

"In summary, over the past 40 years patterns of smoking have changed dramatically in the United States and reflect both reduced initiation and increased cessation," the researchers write. "Among younger birth cohorts, only a small minority of the population is expected to ever attain cigarette consumption levels of even 10 or more CPD. Further study of these changes in the intensity of smoking patterns should assess the relative importance of changes in initiation, cessation, and reduced consumption in the documented decline of health consequences of smoking in the United States."


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. J. P. Pierce, K. Messer, M. M. White, D. W. Cowling, D. P. Thomas. Prevalence of Heavy Smoking in California and the United States, 1965-2007. JAMA: The Journal of the American Medical Association, 2011; 305 (11): 1106 DOI: 10.1001/jama.2011.334

Cite This Page:

JAMA and Archives Journals. "Prevalence of heavy smokers in US decreases." ScienceDaily. ScienceDaily, 16 March 2011. <www.sciencedaily.com/releases/2011/03/110315163209.htm>.
JAMA and Archives Journals. (2011, March 16). Prevalence of heavy smokers in US decreases. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2011/03/110315163209.htm
JAMA and Archives Journals. "Prevalence of heavy smokers in US decreases." ScienceDaily. www.sciencedaily.com/releases/2011/03/110315163209.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins