The median duration of HT use prior to study entry did not differ between the continuers
and discontinuers, but the groups differed in that continuers
were slightly younger and had higher total cholesterol and lower insulin levels.
Eighty-seven percent of continuers
aspired to proceed to postsecondary education, while only 7% planned to finish school with a high school diploma or less.
Higher percentages of continuers
reported respectively; social norms (males 22%, females 38% as compared with males 14%, females 26%), desire (males 21%, females 17% as compared with males 6%, females 6%), and pleasure/affect (males 11%, females 10% ascompared with males 2%, females 4%) as reasons for beginning tobacco use.
The 807 people who quit smoking the year before the study began (and abstained during the next six years) had substantially lower death rates than the continuers
, largely as a result of fewer heart attacks.
Although patients were not allocated to these two categories on a randomized basis, retrospective analysis of the two groups showed continuers
and discontinuers to be similar in terms of stage and type of tumor.