Smokers are less likely to engage in cancer screening programs and
are less engaged with health services overall, senior author Jane
Wardle told Reuters Health in an email.
“We wanted to investigate why, by exploring whether this could be
partly due to excessively negative beliefs about cancer,” said
Wardle, the director of the Health Behavior Research Center at
University College London.
The researchers used data from a survey of adults over the age of 50
in six countries, but focused on responses from nearly 7,000 people
in the UK.
The survey asked participants several questions, including whether
or not they perceived cancer as a death sentence and if they would
want to know if they had cancer. They were asked how screening
affects the chance of survival. They were also asked about the
manageability of cancer and its treatments.
The survey also asked participants about reasons they may avoid
cancer screenings, such as being too busy or embarrassed.
The results showed that current smokers had more pessimistic
attitudes about cancer outcomes than former or non-smokers. The
biggest difference was over the statement that a ‘cancer diagnosis
is a death sentence,’ with 34 percent of smokers agreeing, compared
to 24 percent of former smokers and non-smokers.
About 18 percent of current smokers would not want to know if they
had cancer, compared with 11 percent of both former and non-smokers,
according to the results in the British Journal of Cancer.
Smokers were also less likely to believe that cancer can often be
cured and that people with cancer can continue to lead normal lives.
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People who smoke were also more likely to say that being ‘worried
about what the doctor might find’ could make them delay going to the
doctor.
“In the case of smokers, the greater their perception of risk for
smoking, the greater their psychological aversion to having their
worries confirmed by a doctor,” said Omid Fotuhi, a psychology
researcher at Stanford University in California.
Fotuhi, who was not involved with the new study, told Reuters Health
by email that this may be especially true for the older sample of
smokers in this study, as they may be less likely to believe that
they can quit.
Wardle noted that these avoidant behaviors can have serious health
consequences, because cancer treatment is more likely to be
effective when administered early on. She added that some screening
programs may even prevent cancer by identifying pre-cancerous
lesions.
By delaying or avoiding cancer screening, “smokers are therefore
increasing their risk of cancer death over and above the risk due to
smoking,” Wardle said.
“Cancer outcomes are improving,” she said. “If you have worries or
doubts about whether screening is right for you or need any support,
your doctor can help, and will be happy to talk you through
everything before you make a decision.”
SOURCE: bit.ly/1K5YYI8 British Journal of Cancer, online May 7,
2015.
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