Mortality due to lung cancer was followed ingroups of males in the United Kingdom for 50 years. FigureQ20–1 shows the cumulative risk of dying from lung can-cer as a function of age and smoking habits for four groupsof males: those who never smoked, those who stopped atage 30, those who stopped at age 50, and those who contin-ued to smoke. These data show clearly that individuals cansubstantially reduce their cumulative risk of dying fromlung cancer by stopping smoking. What do you suppose isthe biological basis for this observation? Figure Q20-1 Cumulativerisk of lung cancer mortalityfor nonsmokers, smokers,and former smokers (Problem20-6). Cumulative risk is therunning total of deaths, as apercentage, for each group.Thus, for continuing smokers,1% died of lung cancerbetween ages 45 and 55; anadditional 4% died betweennever15stopped10stoppedage 50555 and 65 (giving a cumulativerisk of 5%); and 11% moredied between 65 and 75 (for acumulative risk of 16%).stopped- age 30neversmoked455565 75 85age (years)lung cancer mortality, cumulative risk (%)

The mortality rate due to lung cancer in four groups of males: those who never smoked, those who…

Figure Q20-1 Cumulative risk of lung cancer mortality for nonsmokers, smokers, and former smokers (Problem 20-6). Cumulative risk is the running total of deaths, as a percentage, for each group. Thus, for continuing smokers, 1% died of lung cancer between ages 45 and 55; an additional 4% died between never 15 stopped 10 stopped age 50 5 55 and 65 (giving a cumulative risk of 5%); and 11% more died between 65 and 75 (for a cumulative risk of 16%). stopped - age 30 never smoked 45 55 65 75 85 age (years) lung cancer mortality, cumulative risk (%)

Figure Q20-1 Cumulative risk of lung cancer mortality for nonsmokers, smokers, and former smokers (Problem 20-6). Cumulative risk is the running total of deaths, as a percentage, for each group. Thus, for continuing smokers, 1% died of lung cancer between ages 45 and 55; an additional 4% died between never 15 stopped 10 stopped age 50 5 55 and 65 (giving a cumulative risk of 5%); and 11% more died between 65 and 75 (for a cumulative risk of 16%). stopped - age 30 never smoked 45 55 65 75 85 age (years) lung cancer mortality, cumulative risk (%)

Lifetime Physical Fitness & Wellness

15th Edition

ISBN:9781337677509

Author:HOEGER

Publisher:HOEGER

Chapter13: Addictive Behavior

Section: Chapter Questions

Problem 7AYK

See similar textbooks