Estimaciones e Implicaciones de la Prevalencia del Trastorno Obsesivo-Compulsivo: ¿Trastorno habitual con una distribución cosmopolita o estrategia infrecuente con una distribución septentrional?
DOI:
https://doi.org/10.24310/espsiescpsi.v8i1.13221Palabras clave:
Trastorno de personalidad obsesivo-compulsivo, Prevalencia, Epidemiología, Evolución, Selección equilibrada dependiente de la frecuencia negativa, HeredabilidadResumen
El DSM-V estima que la prevalencia del trastorno obsesivo-compulsivo oscila entre el 2,1 y el 7,9 por ciento, lo que lo convierte en uno de los trastornos de personalidad de mayor prevalencia en la población general. Sin embargo, la prevalencia del trastorno se suele publicar sin valorar las implicaciones de este hecho. Tras la revisión de las estimaciones que aparecen en varios estudios, este artículo analiza por qué se ha ignorado la prevalencia de este trastorno, cómo cambia este hecho los supuestos etiológicos y el modo en que las nuevas etiologías propuestas ayudan a comprender la prevalencia del trastorno obsesivo-compulsivo. La elevada prevalencia unida a la alta heredabilidad ponen en tela de juicio la etiología psicoanalítica e invalidan la clasificación psiquiátrica, y además sugieren que el trastorno obsesivo-compulsivo no es común, sino infrecuente. Siguiendo esta línea argumental, se utiliza la teoría evolucionista para ilustrar las condiciones bajo las que surge este fenotipo infrecuente y las leyes mecanicistas que lo mantienen en sus actuales proporciones. Tal y como se plantea en la discusión, cuando la elevada prevalencia del trastorno obsesivo-compulsivo se contextualiza dentro de un paradigma evolucionista, aflora la existencia de una biogeografía ecológicamente determinada de este trastorno.
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Aaronson, C. J., Bender, D. S., Skodol, A. E. & Gunderson, J. G. (2006). Comparison of attachment styles in borderline personality disorder and obsessive compulsive personality disorder. Psychiatric Quarterly, 77, 69-80. http://dx.doi.org/10.1007/s11126-006-7962-x
Alarcon, R. D. & Foulks, E. E. (1995). Personality dis-orders and culture: Contemporary clinical views (Part A). Cultural Diversity and Mental Health, 1, 3-17. http://dx.doi.org/10.1037/1099-9809.1.1.3
American Psychiatric Association (2000). Diagnostic and statistical manual of mental disorders (4th edition, text revision). Washington, DC: Author. http://dx.doi.org/10.1176/appi.books.9780890423349
American Psychiatric Association (2013). Diagnostic and statistical manual of mental disorders (5th edition). Washington, DC: Author. http://dx.doi.org/10.1176/appi.books.9780890425596.
Andreasen, N. C. (1987). Creativity and mental illness. American Journal of Psychiatry, 144, 1288-1292. http://dx.doi.org/10.1176/ajp.144.10.1288
Barber, J. P., Morse, J. Q., Krakauer, I. D., Chittams, J. & Crits-Christoph, K. (1997). Change in Obsessive-Compulsive and Avoidant Personality Disorders following time-limited supportive-expressive therapy. Psychotherapy, 34, 133-143. http://dx.doi.org/10.1037/h0087774
Beer, J. M., Arnold, R. D. & Loehlin, J. C. (1998). Genetic and environmental influences on MMPI factor scales: Joint model fitting to twin and adoption data. Journal of Personality and Social Psychology, 74, 818. http://dx.doi.org/10.1037/0022-3514.74.3.818
Benkman, C. W. (1996). Are the ratios of bill crossing morphs in crossbills the result of frequency-dependent selection? Evolutionary Ecology, 10, 119-126. http://dx.doi.org/10.1007/BF01239352
Blaney, P. H. & Millon, T. (2009). Oxford textbook of psychopathology. New York: Oxford University Press.
Boudreau, J. W., Boswell, W. R. & Judge, T. A. (2001). Effects of personality on executive career success in the United States and Europe. Journal of Vocational Behavior, 58, 53-81. http://dx.doi.org/10.1006/jvbe.2000.1755
Buss, D. M. (1999). Adaptive individual differences revisited. Journal of Personality, 67, 259-264. http://dx.doi.org/10.1111/1467-6494.00055
Buss, D. M. & Greiling, H. (1999). Adaptive individual differences. Journal of Personality, 67, 209-243. http://dx.doi.org/10.1111/1467-6494.00053
Buss, D. M. & Hawley, P. H. (2011). The evolution of personality and individual differences. New York: Oxford University Press.
Cachel, S. (2006). Primate and human evolution. New York: Cambridge University Press.
Costa, P., Samuels, J., Bagby, M., Daffin, L. & Norton, H. (2005). Obsessive-compulsive personality disorder: A review. Personality Disorders, 8, 405. http://dx.doi.org/10.1002/0470090383.ch6
Demal, U., Lenz, G., Mayrhofer, A., Zapotoczky, H. G. & Zitterl, W. (1993). Obsessive-compulsive disorder and depression. Psychopathology, 26, 145-150. http://dx.doi.org/10.1159/000284814
Diaconu, G. & Turecki, G. (2009). Obsessive-Compulsive Personality Disorder and suicidal behavior: Evidence for a positive association in a sample of depressed patients. Journal of Clinical Psychiatry, 70, 1551-1556. http://dx.doi.org/10.4088/JCP.08m04636
Dingemanse, N. J. & Reale, D. (2013). What is the evidence that natural selection maintains variation in animal personalities? In C. Carere & D. Maestripieri (Eds.), Animal personalities: Behavior, physiology, and evolution (pp. 201-220). Chicago, Illinois: University of Chicago Press. http://dx.doi.org/10.7208/chicago/9780226922065.003.0008
Doebeli, M. (2011). Adaptive diversification. Princeton, New Jersey: Princeton University Press. http://dx.doi.org/10.1515/9781400838936
Dumont, F. (2010). A history of personality psychology: Theory, science, and research from Hellenism to the twentyfirst century. New York: Cambridge University Press. http://dx.doi.org/10.1017/CBO9780511676093
Engelhardt, H. T. (1976). Ideology and etiology. Journal of Medicine and Philosophy, 1, 256-268. http://dx.doi.org/10.1093/jmp/1.3.256
Eysenck, H. J. (1990). Genetic and environmental contributions to individual differences: The three major dimensions of personality. Journal of Personality, 58, 245-261. http://dx.doi.org/10.1111/j.1467-6494.1990.tb00915.x
Fisher, R. A. (1931). The evolution of dominance. Biological reviews, 6, 345-368. http://dx.doi.org/10.1111/j.1469-185X.1931.tb01030.x
Fossati, A., Maffei, C., Bagnato, M., Battaglia, M., Donati, D., Donini, M., ... & Prolo, F. (2000). Patterns of covariation of DSM-IV personality disorders in a mixed psychiatric sample. Comprehensive Psychiatry, 41, 206-215. http://dx.doi.org/10.1016/S0010-440X(00)90049-X
Gay, P. (1989). The Freud reader. New York: Norton & Company.
Golden, R. N., Gaynes, B. N., Ekstrom, R. D., Hamer, R. M., Jacobsen, F. M., Suppes, T., ... & Nemeroff, C. B. (2005). The efficacy of light therapy in the treatment of mood disorders: a review and meta- analysis of the evidence. American Journal of Psychiatry, 162, 656-662. http://dx.doi.org/10.1176/appi.ajp.162.4.656
Goldsmith, H. H., Buss, K. A. & Lemery, K. S. (1997). Toddler and childhood temperament: expanded content, stronger genetic evidence, new evidence for the importance of environment. Developmental Psychology, 33, 891-905. http://dx.doi.org/10.1037/0012-1649.33.6.891
Grant, B. F., Stinson, F. S., Dawson, D. A., Chou, S. P., Ruan, W. J. & Pickering, R. P. (2004). Co-occurrence of 12-Month Alcohol and Drug Use Disorders and Personality Disorders in the United States: Results From the National Epidemiologic Survey on Alcohol and Related Conditions. Archives of general psychiatry, 61, 361-368. http://dx.doi.org/10.1001/archpsyc.61.4.361
Gross, M. R. (1996). Alternative reproductive strategies and tactics: Diversity within sexes. Tree, 11, 92-98. http://dx.doi.org/10.1016/0169-5347(96)81050-0
Gutiérrez F., Gárriz, M., Peri, J. M., Ferraz, L., Sol, D., Navarro, J. B., Barbadilla, A. & Valdés, M. (2013). Fitness costs and benefits of personality disorder traits. Evolution and Human Behavior, 34, 41–48. http://dx.doi.org/10.1016/j.evolhumbehav.2012.09.001
Hardy, I. C. W., Goubault, M. & Batchelor, T. P. (2013). Hymenopteran contests and agonistic behavior. In I. C.W.Hardy & M. Briffa (Eds.), Animal contests (pp. 147-177). New York: Cambridge University Press. http://dx.doi.org/10.1017/CBO9781139051248.010
Hertler, S. C. (2014a). A review and critique of obsessive-compulsive personality disorder etiologies: Reckoning with heritability estimates. Europe’s Journal of Psychology, 10, 168-184. http://dx.doi.org/10.5964/ejop.v10i1.679
Hertler, S. C. (2014b). The continuum of conscientious-ness: The antagonistic interests among obsessive and anti-social personalities. Polish Psychological Bulletin, 45, 52-63. http://dx.doi.org/10.2478/ppb-2014-0022
Hertler, S. C. (2015a). Crossing the paradigmatic divide in personality: Coming to an evolutionary understanding of personality variation. An unpublished manuscript currently in review, Journal of Philosophy and Psychiatry.
Hertler, S. C. (2015b). Obsessive personality as an adaptive anachronism: The operation of phylogenetic inertia upon obsessive populations in Western Modernity. Accepted and in press, Psychological Topics.
Hertler, S. C. (2015c). Migration load, ecological opportunity, and Obsessive Compulsive Personality Disorder Etiology: Obsessive character as an adaptation to seasonality. Evolutionary Psychological Science, 1, 52-67. http://dx.doi.org/10.1007/s40806-014-0009-x
Hollander, E. (1997). Obsessive-Compulsive disorders: diagnosis, etiology, treatment. Marcel Dekker.
Hummelen, B., Wilberg, T., Pedersen, G. & Karterud, S.(2008). The quality of the DSM-IV Obsessive-Compulsive Personality Disorder construct as a prototype category. Journal of Nervous and Mental Disease, 196, 446-455. http://dx.doi.org/10.1097/NMD.0b013e3181775a4e
Hyler, S. E., Kellman, H. D., Oldham, J. M. & Skodol, A. E.(1992). Diagnosis of DSM-III—R personality disorders by two structured interviews: Patterns of comorbidity. American Journal of Psychiatry, 149, 213-220. http://dx.doi.org/10.1176/ajp.149.2.213
Jamison, K. R. (1995). Manic-depressive illness and creativity. Scientific American, 72, 62-62. http://dx.doi.org/10.1038/scientificamerican0295-62
Jovev, M. & Jackson, H. J. (2004). Early maladaptive schemas in personality disordered individuals. Journal of Personality Disorders, 18, 467-478. http://dx.doi.org/10.1521/pedi.18.5.467.51325
Judd, L. L. & Akiskal, H. S. (2003). The prevalence and disability of bipolar spectrum disorders in the US population: re-analysis of the ECA database taking into account subthreshold cases. Journal of Affective Disorders, 73, 123-131. http://dx.doi.org/10.1016/S0165-0327(02)00332-4
Keller, M. C. (2008). The evolutionary persistence of genes that increase mental disorders risk. Current Directions in Psychological Science, 17, 395-399. http://dx.doi.org/10.1111/j.1467-8721.2008.00613.x
Keller, M. C. & Miller, G. (2006). Resolving the paradox of common, harmful, heritable mental disorders: Which evolutionary genetic models work best? Behavioral and Brain Sciences, 29, 385–452. http://dx.doi.org/10.1017/S0140525X06009095
Kenrick, D. T., Maner, J. K., Butner, J., Norman, P. L. & Becker, D. V. (2002). Dynamical evolutionary psychology: Mapping the domains of the new interactionist paradigm. Personality and Social Psychology Review, 6, 347-356. http://dx.doi.org/10.1207/S15327957PSPR0604_09
Kirkwood, T. B. & Rose, M. R. (1991). Evolution of senescence: late survival sacrificed for reproduction. Philosophical Transactions of the Royal Society of London. Series B:Biological Sciences, 332, 15-24. http://dx.doi.org/10.1098/rstb.1991.0028
Kozak, M. J. & Foa, E. B. (1994). Obsessions, overvalued ideas, and delusions in Obsessive-Compulsive Disorder. Behaviour Research and Therapy, 32, 343-353. http://dx.doi.org/10.1016/0005-7967(94)90132-5
Kyrios, M., Nedeljkovic, M., Moulding, R. & Doron, G.(2007). Problems of employees with personality disorders: The exemplar of Obsessive Compulsive Personality Dis-order (OCPD). In J. Langan-Fox, C. L. Cooper, & R. J. Klimoski (Eds.), Research companion to the dysfunctional workplace: Management challenges and symptoms (pp. 40-57). Northampton, MA: Edward Elgar Publishing Limited. http://dx.doi.org/10.4337/9781847207081.00010
Last, J. M. (Ed.). (2001). A dictionary of epidemiology (Vol. 4). New York: Oxford University Press.
Leising, D., Rogers, K. & Ostner, J. (2009). The undisordered personality: Normative assumptions underlying personality disorder diagnoses. Review of General Psychology, 13, 230–241. http://dx.doi.org/10.1037/a0017139
Lewinsohn, P. M., Klein, D. N. & Seeley, J. R. (1995). Bi-polar disorders in a community sample of older adolescents: prevalence, phenomenology, comorbidity, and course. Journal of the American Academy of Child & Adolescent Psychiatry, 34, 454-463. http://dx.doi.org/10.1097/00004583-199504000-00012
Mackali, Z., Gülöksüz, S. & Oral, T. (2014). Creativity and Bipolar Disorder. Turkish Journal of Psychiatry, 25, 1-10.
McCann, J. T. (2009). Obsessive-Compulsive and Negativistic Personality Disorders. In P. H. Blaney & T. Millon (Eds.), Oxford textbook of psychopathology (pp. 671-691). New York: Oxford University Press.
McGlashan, T. H., Grilo, C. M., Skodol, A. E., Gunderson, J. G., Shea, M. T., Morey, L. C., Zanarini, M. C. & Stout, R. L. (2000). The collaborative longitudinal personality disorders study: Baseline axis I/II and II/II diagnostic co-occurrence. Acta Psychiatrica Scandinavica, 102, 256-264. http://dx.doi.org/10.1034/j.1600-0447.2000.102004256.x
Merikangas, K. R., Akiskal, H. S., Angst, J., Greenberg, P. E., Hirschfeld, R. M., Petukhova, M. & Kessler, R. C. (2007). Lifetime and 12-month prevalence of bipolar spectrum disorder in the National Comorbidity Survey replication. Archives of General Psychiatry, 64, 543-552. http://dx.doi.org/10.1001/archpsyc.64.5.543
Millon, T. & Davis, R. D. (1996). Disorders of personality DSM-IV and beyond. New York: John Wiley & Sons, Inc.
Nakao, K., Gunderson, J. G., Phillips, K. A., Tanaka, N., Yorifuji, K., Takaishi, J. & Nishimura, T. (1992). Functional impairment in personality disorders. Journal of Personality Disorders, 6, 24-33. http://dx.doi.org/10.1521/pedi.1992.6.1.24
Nettle, D. (2006). The evolution of personality variation in humans and other animals. American Psychologist, 61,622-631. http://dx.doi.org/10.1037/0003-066X.61.6.622
Nettle, D. (2011). Evolutionary perspectives on the five-factor model of personality. In D. M. Buss & P. H. Hawley (Eds.), The evolution of personality and individual differences (pp. 5-28). New York: Oxford University Press.
Olendorf, R., Rodd, F. H., Punzalan, D., Houde, A. E., Hurt, C., Reznick, D. N. & Hughes, K. A. (2006). Frequency-dependent survival in natural guppy populations. Nature, 441, 633-636. http://dx.doi.org/10.1038/nature04646
Penke, L., Denissen, J. A. & Miller, G. F. (2007). The evo-lutionary genetics of personality. European Journal of Personality, 21, 549–587. http://dx.doi.org/10.1002/per.629
Pfohl, B. & Blum, N. (1991). Obsessive-compulsive per-sonality disorder: A review of available data and recommendations for DSM-IV. Journal of Personality Disorders, 5, 363-375. http://dx.doi.org/10.1521/pedi.1991.5.4.363
Pollak, J. M. (1987). Obsessive-Compulsive Personality: Theoretical and clinical perspectives and recent research findings. Journal of Personality Disorders, 1, 248-262. http://dx.doi.org/10.1521/pedi.1987.1.3.248
Pryke, S. R., Astheimer, L. B., Buttemer, W. A. & Griffith, S. C. (2007). Frequency-dependent physiological trade-offs between competing colour morphs. Biology Letters, 3, 494-497. http://dx.doi.org/10.1098/rsbl.2007.0213
Reichborn-Kjennerud, T., Czajkowski, N., Neale, M. C., Orstavik, R. E., Torgersen, S., Tambs, K., Røysamb, E., Harris, J. & Kendler, K. S. (2007). Genetic and environ-mental influences on dimensional representations of DSM-IV cluster C personality disorders: A population-based multivariate twin study. Psychological Medicine, 37, 645–653. http://dx.doi.org/10.1017/S0033291706009548
Ryder, A. G., Costa, P. T. & Bagby, R. M. (2007). Evalua-tion of the SCID-II personality disorder traits for DSM-IV: Coherence, discrimination, relations with general personality traits, and functional impairment. Journal of Personality Disorders, 21, 626-637. http://dx.doi.org/10.1521/pedi.2007.21.6.626
Salcido, R. (2013). The Broad Street Pump: Epidemiology Is More Than Skin Deep. Advances in skin & wound care, 26, 7. http://dx.doi.org/10.1097/01.ASW.0000425930.08336.c1
Shapiro, P. J. & Weisberg, R. W. (1999). Creativity and bi-polar diathesis: Common behavioural and cognitive components. Cognition & Emotion, 13, 741-762. http://dx.doi.org/10.1080/026999399379069
Sherman, J. A. (2012). Evolutionary origin of bipolar dis-order-revised: EOBD-R. Medical Hypotheses, 78, 113-122. http://dx.doi.org/10.1016/j.mehy.2011.10.005
Sherrat, T. N. & Wilkinson, D. M. (2009). Big questions in ecology and evolution. New York: Oxford University Press.
Simeonova, D. I., Chang, K. D., Strong, C. & Ketter, T. A. (2005). Creativity in familial bipolar disorder. Journal of Psychiatric Research, 39, 623-631. http://dx.doi.org/10.1016/j.jpsychires.2005.01.005
Sinervo, B. & Calsbeek, R. (2010). Behavioral concepts of selection. In D. Westneat & C. Fox (Eds.), Evolutionary behavioral ecology (pp. 32-45). New York: Oxford University Press.
Skodol, A. E., Gunderson, J. G., McGlashan, T. H. & Dyck, I. R. (2002). Functional impairment in patients with schizotypal, borderline, avoidant, or obsessive-compulsive personality disorder. The American Journal of Psychiatry, 159, 276-283. http://dx.doi.org/10.1176/appi.ajp.159.2.276
Snell-Rood, E. C. & Moczek, A. P. (2013). Horns and the role of development in the evolution of beetle contests. In I. C. W. Hardy & M. Briffa (Eds.) Animal contests (pp. 178-198). New York: Cambridge University Press. http://dx.doi.org/10.1017/CBO9781139051248.011
Soeteman, D. I., Hakkaart-van Roijen, L., Verheul, R. & Busschbach, J. V. (2008). The economic burden of personality disorders in mental health care. Journal of Clinical Psychiatry, 69, 259-265. http://dx.doi.org/10.4088/JCP.v69n0212
Stearns, S. C. & Hoekstra, R. F. (2005). Evolution: An introduction, 2nd ed. New York: Oxford University Press.
Stuart, S., Pfohl, B., Battaglia, M., Bellodi, L., Grove, W. & Cadoret, R. (1998). The cooccurrence of DSM-III-R personality disorders. Journal of Personality Disorders, 12, 302-315. http://dx.doi.org/10.1521/pedi.1998.12.4.302
Swedo, S. E., Rapoport, J. L., Leonard, H., Lenane, M. & Cheslow, D. (1989). Obsessive-Compulsive Disorder in children and adolescents: clinical phenomenology of 70 consecutive cases. Archives of General Psychiatry, 46, 335-341. http://dx.doi.org/10.1001/arch-psyc.1989.01810040041007
Thomsen, P.H. & Jensen, J. (1994). Obsessive-Compulsive: admision petterns and diagnostic stability. Acta Psychiatrica Scandinavica, 90, 19-24. http://dx.doi.org/10.1111/j.1600-0447.1994.tb01550.x
Torgersen, S., Lygren, S., Øien, P. A., Skre, I., Onstad, S., Edvardsen, J., Tambs, K. & Kringlen, E. (2000). A twin study of personality disorders. Comprehensive Psychiatry, 41, 416-425. http://dx.doi.org/10.1053/comp.2000.16560
Ullrich, S., Farrington, D. P. & Coid, J. W. (2007). Dimensions of DSM-IV personality disorders and life-success. Journal of Personality Disorders, 21, 657-663. http://dx.doi.org/10.1521/pedi.2007.21.6.657
United States Census Bureau. (2014, 10 Thursday). www. census.gov. Retrieved 10, 2, 2014, from United States Census Bureau: http://www.census.gov/population/internation-al/data/worldpop/table_population.php
Villemarette-Pittman, N. R., Stanford, M. S., Greve, K. W., Houston, R. J. & Mathias, C. W. (2004). Obsessive Compulsive Personality Disorder and behavioral disinhibition. The Journal of Psychology, 138, 5-22. http://dx.doi.org/10.3200/JRLP.138.1.5-22
Weiss, A. & Adams, M. J. (2013). Differential behavioral ecology: The structure, life history, and evolution of primate personality. In C. Carere & D. Maestripieri (Eds.), Animal personalities: Behavior, physiology, and evolution (pp. 96-123). Chicago, Illinois: University of Chicago Press. http://dx.doi.org/10.7208/chicago/9780226922065.003.0005
Wilson, E. O. (1975/2000). Sociobiology: The new synthesis: 25th anniversary edition. Cambridge: Harvard University Press.
Yin, L., Wang, J., Klein, P. S. & Lazar, M. A. (2006). Nuclear receptor Reverb? is a critical lithium-sensitive component of the circadian clock. Science, 311, 1002-1005. http://dx.doi.org/10.1126/science.1121613
Zanarini, M. C., Frankenburg, F. R., Dubo, E. D., Sickel, A. E., Trikha, A., Levin, A. & Reynolds, V. (1998). Axis II comorbidity of borderline personality disorder. Comprehensive Psychiatry, 39, 296-302. http://dx.doi.org/10.1016/S0010-440X(98)90038-4
Zimmerman, M., Rothschild, L. & Chelminski, I. (2005). The prevalence of DSM-IV personality disorders in psychiatric outpatients. Prevalence, 162, 1911-1918. http://dx.doi.org/10.1176/appi.ajp.162.10.1911
Zuckerman, M. (1997). The psychobiological basis of personality. In H. Nyborg (Ed.) The scientific study of human nature: Tribute to Hans J. Eysenck at eighty (pp. 3-16). Elsevier: Oxford.
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