Teens with asthma tend to be more depressed and more likely to smoke cigarettes than their peers who don't have the disease, an analysis of US national data shows.
What's more, being depressed increased asthmatic teens' likelihood of using drugs, alcohol and cigarettes, Dr Bruce G. Bender of the University of Colorado Health and Sciences Center in Denver reports.
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Cigarettes are particularly deadly for people with asthma, Bender notes, because smoking can speed lung deterioration and blunt the effectiveness of asthma medications.
There is some evidence that both smoking and depression are more common among asthmatic individuals, he adds.
How the study was done
To investigate, Bender looked at data from 13 917 high school students participating in the Centers for Disease Control and Prevention's 2005 Youth Risk Behavior Survey.
The students were from 159 high schools in 40 states, providing a nationally representative sample. A total of 720 subjects currently had asthma.
Depressive symptoms, cigarette use and cocaine use were all more frequent in the 5.2 percent of teens with asthma.
Of those who reported they contemplated suicide, 67 percent reported using marijuana, 40 percent smoked cigarettes, 37 percent reported binge drinking and 30 used cocaine in the last 30 days.
What the study showed
"Within all race, sex and age groups, the probability of suicidal ideation was approximately doubled in youth with asthma," Bender states.
"The high frequency of depression in adolescents with asthma is most likely a consequence of a disease that impedes breathing, interferes with age-level activities, and complicates the adolescent process of developing a self-identity different from family," Bender notes in his report.
The findings show that adolescents with asthma should be screened for depression, and that they may also be in greater need of interventions targeted at preventing substance abuse, he concludes. – (Reuters)
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