They may occur sporadically or as part of an anxiety disorder, such as panic disorder, social anxiety
disorder or phobias.
Jordan W. Smoller, M.D., Sc.D., of Massachusetts General Hospital, Boston, and colleagues studied 3,369 healthy postmenopausal women (age 51 to 83, average age 65.9). When they entered the study between 1997 and 2000, the women filled out a questionnaire about the occurrence of panic attacks in the previous six months. They were then followed for an average of 5.