CO2-induced panic attacks: a twin study.
case_control · Level III
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- Record sourced from PubMed, PMID 9734540.
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Abstract
The authors investigated the role of genetic factors in 35% CO2-induced panic attacks. Ninety twins recruited from the general population were challenged with one-vital-capacity inhalations of 35% CO2-65% O2. Probandwise concordance rates were calculated and rates compared for monozygotic and for dizygotic twins. A significantly higher concordance was found for 35% CO2-induced panic attacks among monozygotic than dizygotic twins (55.6% versus 12.5%). These results suggest a relevant role of genetic factors in 35% CO2-induced panic attacks.
Medical subject headings
- Carbon Dioxide
- Diseases in Twins
- Panic Disorder