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Indian J Psychiatry. 2002 Apr-Jun; 44(2): 125–130.
PMCID: PMC2954339



We studied 94 panic subjects with a view to identify clinical subtypes of panic disorder. Principal component analysis with varimax rotation of 13 DSM-IV panic symptoms yielded four clinically meaningful factors. Factor I with hot flushes, trembling and sweating was suggestive of a general autonomic hyperactivity. Factor II had cognitive symptoms such as fear of loss of control or going crazy and derealisation. Factor III was mixed in nature but had symptoms of fear of dying and chest pain. Factor-IV had respiratory symptoms in the form of choking sensation and being short of breath. These findings are compared to earlier studies of factor analysis of panic symptoms reported from the West. Clinical implications of sub-types of panic disorder have been highlighted.

Keywords: Panic symptoms, Factor analysis, Sub-types of panic disorder

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Selected References

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  • Aronson TA, Logue CM. Phenomenology of panic attacks: a descriptive study of panic disorder patients' self-reports. J Clin Psychiatry. 1988 Jan;49(1):8–13. [PubMed]
  • Biber B, Alkin T. Panic disorder subtypes: differential responses to CO2 challenge. Am J Psychiatry. 1999 May;156(5):739–744. [PubMed]
  • Bouwer C, Stein DJ. Association of panic disorder with a history of traumatic suffocation. Am J Psychiatry. 1997 Nov;154(11):1566–1570. [PubMed]
  • Bovasso G, Eaton W. Types of panic attacks and their association with psychiatric disorder and physical illness. Compr Psychiatry. 1999 Nov-Dec;40(6):469–477. [PubMed]
  • Briggs AC, Stretch DD, Brandon S. Subtyping of panic disorder by symptom profile. Br J Psychiatry. 1993 Aug;163:201–209. [PubMed]
  • Cassano GB, Petracca A, Perugi G, Toni C, Tundo A, Roth M. Derealization and panic attacks: a clinical evaluation on 150 patients with panic disorder/agoraphobia. Compr Psychiatry. 1989 Jan-Feb;30(1):5–12. [PubMed]
  • Chambless DL, Beck AT, Gracely EJ, Grisham JR. Relationship of cognitions to fear of somatic symptoms: a test of the cognitive theory of panic. Depress Anxiety. 2000;11(1):1–9. [PubMed]
  • Cox BJ, Swinson RP, Endler NS, Norton GR. The symptom structure of panic attacks. Compr Psychiatry. 1994 Sep-Oct;35(5):349–353. [PubMed]
  • de Beurs E, Garssen B, Buikhuisen M, Lange A, van Balkom A, Van Dyck R. Continuous monitoring of panic. Acta Psychiatr Scand. 1994 Jul;90(1):38–45. [PubMed]
  • Katerndahl DA, Realini JP. Comorbid psychiatric disorders in subjects with panic attacks. J Nerv Ment Dis. 1997 Nov;185(11):669–674. [PubMed]
  • Kushner MG, Beitman BD. Panic attacks without fear: an overview. Behav Res Ther. 1990;28(6):469–479. [PubMed]
  • Langs G, Quehenberger F, Fabisch K, Klug G, Fabisch H, Zapotoczky HG. The development of agoraphobia in panic disorder: a predictable process? J Affect Disord. 2000 Apr;58(1):43–50. [PubMed]
  • Lelliott P, Bass C. Symptom specificity in patients with panic. Br J Psychiatry. 1990 Oct;157:593–597. [PubMed]
  • Liebowitz MR, Salmán E, Jusino CM, Garfinkel R, Street L, Cárdenas DL, Silvestre J, Fyer AJ, Carrasco JL, Davies S, et al. Ataque de nervios and panic disorder. Am J Psychiatry. 1994 Jun;151(6):871–875. [PubMed]
  • Lydiard RB, Laraia MT, Howell EF, Ballenger JC. Can panic disorder present as irritable bowel syndrome? J Clin Psychiatry. 1986 Sep;47(9):470–473. [PubMed]
  • Marks IM. Components and correlates of psychiatric questionnaires. Observations on the Cornell Medical Index, Eysenck Personality Inventory and Tavistock Self-Assessment Inventory in phobic patients. Br J Med Psychol. 1967 Sep;40(3):261–272. [PubMed]
  • Robins LN, Wing J, Wittchen HU, Helzer JE, Babor TF, Burke J, Farmer A, Jablenski A, Pickens R, Regier DA, et al. The Composite International Diagnostic Interview. An epidemiologic Instrument suitable for use in conjunction with different diagnostic systems and in different cultures. Arch Gen Psychiatry. 1988 Dec;45(12):1069–1077. [PubMed]
  • Sartorius N, Ustün TB, Costa e Silva JA, Goldberg D, Lecrubier Y, Ormel J, Von Korff M, Wittchen HU. An international study of psychological problems in primary care. Preliminary report from the World Health Organization Collaborative Project on 'Psychological Problems in General Health Care'. Arch Gen Psychiatry. 1993 Oct;50(10):819–824. [PubMed]
  • Seguí J, Salvador-Carulla L, García L, Canet J, Ortiz M, Farré JM. Semiology and subtyping of panic disorders. Acta Psychiatr Scand. 1998 Apr;97(4):272–277. [PubMed]
  • Shioiri T, Someya T, Murashita J, Takahashi S. The symptom structure of panic disorder: a trial using factor and cluster analysis. Acta Psychiatr Scand. 1996 Feb;93(2):80–86. [PubMed]
  • Starcevic V, Kellner R, Uhlenhuth EH, Pathak D. The phenomenology of panic attacks in panic disorder with and without agoraphobia. Compr Psychiatry. 1993 Jan-Feb;34(1):36–41. [PubMed]
  • Stein MB, Asmundson GJ, Ireland D, Walker JR. Panic disorder in patients attending a clinic for vestibular disorders. Am J Psychiatry. 1994 Nov;151(11):1697–1700. [PubMed]
  • Verburg K, Griez E, Meijer J, Pols H. Respiratory disorders as a possible predisposing factor for panic disorder. J Affect Disord. 1995 Feb 21;33(2):129–134. [PubMed]

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