Section II 
,} common. The relative rankings may be accurate for any given year, but the 
I range was so different 40 years ago than it is now that the actual amount of 
I some of the compensatory behaviors may have been much less frequent 
j 40 years ago than now. 
The range in tar values and nicotine values was so much higher in the 
I 1950's and the 1960's given the FTC yield that people may not have had to 
perform the compensatory behaviors and wouldn't have even had the ability 
I to hole block because it is my understanding that there were no holes then. 
; So, my concern is that those trend data, while representing what the FTC 
I has presented, are not representing even what the consumer is taking out 
' of the cigarette, let alone getting into their lungs. 
I 
* DR. GUERIN: 1 am not sure that was ever the case anyway. In trend data, 
what you are looking at are the characteristics of the average cigarette, not 
how the cigarette was used, and that is all those data mean. 
I DR. GIOVINO: Exactly. 1 think the panel understands this, that the trend 
I data represent what the FTC method gives. The reality is that trends over 
! time in terms of what the consumer is taking out are quite different. 
' DR. BOCK: At the very earliest time that yield data were collected, the 
standard deviations were given, which had big meaning for the analysts 
but obviously did not have much meaning for people out in the street. 
But the variability of smoking, which is part of the fact that people in the 
street really need to know, the range of values for each cigarette, has not 
been provided by the data. The labeling might have incorporated that 
type of information, which would in large part, 1 think, answer some of 
the criticisms. 
DR. FREEMAN: Before you go on, let me follow up on that. Are you 
suggesting then that might be a change in this Question 1 concern? 
I DR. BOCK: It would indicate that maybe there should be a change in the 
j protocol and the way the data are collected, and there should be provision 
j made for a range. 
I DR. FREEMAN: Measuring the same elements but giving the range. 
i DR. BOCK: With different smoking parameters. 
i 
j DR. FREEMAN: That is a point of discussion. Dr. Woosley? 
j DR. WOOSLEY: 1 think in answering that first one I have to agree with 
Dr. Giovino that things have changed over the years, and I think that is 
what the FTC is actually asking us. There was this huge range of difference 
30 years ago or so, and the ability for this method to predict something was 
great then, but now that most of the tobacco products have come down to 
I some very homogeneous group, the variance is quite tight, and the ability 
I of this numerical ranking to have any meaningful information or carry any 
I meaningful information to the public is gone, in my estimation. Data 
i yesterday were very convincing for me that numerical ranking does not 
i 
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