Anxiety sensitivity and panic symptoms: the moderating influence of distress tolerance.

Background and objectives: Anxiety sensitivity (AS) is the fear of consequences of anxiety-related sensations, and has been linked to the development of panic symptoms. Distress tolerance (DT) encompasses one's behavioral or self-perceived ability to handle aversive states. We examined whether higher DT buffers the relationship between AS and changes in panic symptoms across two timepoints, spaced ∼three weeks apart.

Design and methods: At Time 1, 208 participants completed questionnaires and a physical DT task (breath-holding duration), a cognitive DT task (anagram persistence), and a self-report measure of DT (perceived DT). Panic symptoms were assessed at both timepoints. Structural equation modeling was used to evaluate two models in which AS and DT predicted changes in panic.

Results: Contrary to hypotheses, for those with longer breath-holding duration (higher physical DT), higher fears of physical anxiety-related sensations (higher physical AS) were associated with worse panic outcomes over time.

Conclusions: Findings suggest that those with lower physical DT may have been less willing to engage with difficult tasks in the short-term. Although disengagement in the short-term may provide temporary relief, it is possible that averse psychopathological consequences stemming from rigid or habitual avoidance of distressing states may develop over longer periods of time.