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Quartile01:15

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Quartiles are numbers that separate the data into quarters. Quartiles may or may not be part of the data. To find the quartiles, first, find the median or second quartile. The first quartile, Q1, is the middle value of the lower half of the data, and the third quartile, Q3, is the middle value, or median, of the upper half of the data. To get the idea, consider the same data set:
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The Bionic Clicker Mark I &amp; II
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The quarter that changed the world.

April Roeseler1, David Burns

  • 1California Department of Public Health, California Tobacco Control Program, PO Box 997377, MS 7206, Sacramento, CA 95899-7377, USA. april.roeseler@cdph.ca.gov

Tobacco Control
|April 13, 2010
PubMed
Summary
This summary is machine-generated.

California's comprehensive tobacco control program, established in 1988, effectively reduced adult smoking by 35% and cigarette consumption by over 60% through a social norm change approach. This initiative also led to significant declines in cancer rates and substantial healthcare savings.

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Area of Science:

  • Public Health
  • Tobacco Control
  • Health Policy

Background:

  • The California Tobacco Control Program (CTCP) is a long-standing, comprehensive initiative established in 1988 via a public health ballot initiative.
  • Funding originated from a 25-cent tax on cigarettes and proportional increases on other tobacco products.
  • The program employed a social norm change strategy to decrease tobacco use.

Purpose of the Study:

  • To review the operation, structure, evolution, dissemination, and outcomes of the California Tobacco Control Program.
  • To assess the effectiveness of a comprehensive, unified approach to tobacco control.

Main Methods:

  • Review of program operations and historical data.
  • Analysis of tobacco consumption trends and health outcomes.
  • Examination of program dissemination and structure.

Main Results:

  • Adult per capita cigarette consumption decreased by over 60%; adult smoking prevalence dropped by 35% (from 22.7% in 1988 to 13.8% in 2007).
  • Lung and bronchus cancer rates in California declined nearly four times faster than in the rest of the USA (1988-2004).
  • The program is associated with $86 billion in healthcare savings, and youth smoking rates are among the nation's lowest.

Conclusions:

  • The social norm change approach is highly effective in reducing tobacco consumption, adult smoking, and youth uptake.
  • The CTCP's success is attributed to its comprehensive strategy where interventions complement each other, rather than isolated efforts.
  • The program has demonstrably reduced tobacco-related diseases and generated significant healthcare cost savings.