Answer to Question 8/title> </head> <body> <center> <table bgcolor="#FFFFFF" width="80%" border="1"> <tr> <th colspan="3">Cigarette Smoking Data for the Cohort and the U.S. as of 1965</th> </tr> <tr> <td> </td> <td align="center"><i><b>Cohort</b></i></td> <td align="center"><i><b>U.S.</b></i></td> </tr> <tr> <td>Percentage never smoked cigarettes<br> Percentage current, 1 pack or less<br> Percentage current, more than 1 pack<br> Percentage former</td> <td align="center" valign="top" width="20%">24<br> 34<br> 27<br> 15</td> <td align="center" valign="top" width="20%">24<br> 40<br> 15</br> 21</td> </tr> </table> </center> <h6>ANSWER 8:</h6> <p> The data in the Table show that in 1965 the cohort and the United States had about the same percentage of never-smokers, but that among those who had ever smoked, there were fewer quitters among the cohort and more heavy current smokers. These data are typical of a bluecollar population versus the U.S. population. Since the early 1960s, bluecollar workers have smoked somewhat more than the general population. The Axelson adjustment discussed in the text, while not presented in detail here, predicted that larynx cancer rates among the exposed would be 15% higher than the U.S. population due to smoking differences (rate ratio of 1.15). The Axelson adjustment was also used to assess the effect of smoking differences as of 1976, and results were similar. </p> </p> </body> </html>