Abstract
Objective: The authors investigated the role of genetic factors in 35% CO2-induced panic attacks. Method: 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. Results: A significantly higher concordance was found for 35% CO2-induced panic attacks among monozygotic than dizygotic twins (55.6% versus 12.5%). Conclusions: These results suggest a relevant role of genetic factors in 35% CO2-induced panic attacks.
Original language | English |
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Pages (from-to) | 1184-1188 |
Number of pages | 5 |
Journal | American Journal of Psychiatry |
Volume | 155 |
Issue number | 9 |
Publication status | Published - Sep 1998 |
ASJC Scopus subject areas
- Psychiatry and Mental health