Background: For the German treatment guidelines for eating disorders, the literature on psychological treatment of anorexia nervosa (AN) was reviewed systematically. As a common meta-analysis of randomized clinical trials proved to be impossible, a review of all available clinical trials was conducted, statistically integrating standardized mean change scores. Research questions comprised differential effects of therapeutic techniques and settings as well as determining which weight gains could be expected. Methods: After an extensive literature search, studies were selected, rated by 3 independent raters. Weight gain as the main outcome criterion was transformed into standardized mean change scores. Effect sizes were checked for homogeneity. Results: 57 studies containing 84 treatment arms and 2,273 patients could be integrated. Studies differed considerably in quality. The strongest bias identified was reporting selectively on completers or failures, versus intention-to-treat samples. No significant differences between effect sizes could be identified concerning treatment setting, technique or patient characteristics. If treatment time is taken into account, inpatient treatment produced a faster weight gain than outpatient treatment. Conclusion: The study describes weight gains which can be reached in outpatient and inpatient settings. It yielded no salient results speaking for a certain therapy technique, setting or procedure. Treatment guidelines for psychological treatment of AN still have to rely on lower level evidence.

1.
National Institute of Clinical Excellence: Eating Disorders. National Clinical Practice Guideline No CG6. London, British Psychological Society and Royal College of Psychiatrists, 2004.
2.
American Psychiatric Association: Practice Guideline for the Treatment of Patients with Eating Disorders, revised. New York, American Psychiatric Association, 2006.
3.
Bulik C, Berkman N, Brownley K, Sedway J, Lohr K: Anorexia nervosa treatment: a systematic review of randomized controlled trials. Int J Eat Disord 2007;40:310–320.
4.
Fairburn C: Evidence-based treatment of anorexia nervosa. Int J Eat Disord 2005;37:26–30.
5.
Halmi KA, Agras WS, Crow S, Mitchell J, Wilson GT, Bryson SW, et al: Predictors of treatment acceptance and completion in anorexia nervosa: implications for future study designs. Arch Gen Psychiatry 2005;62:776–781.
6.
Herzog T, Hartmann A: Psychoanalytisch orientierte Behandlung der Anorexia nervosa: eine methodenkritische Literaturübersicht unter Verwendung meta-analytischer Methoden (Psychoanalytically oriented treatment of anorexia nervosa: a review using meta-analytic methods). Psychother Psychosom Med Psychol 1997;47:299–315.
7.
Claudino A, Hay P, Lima M, Bacaltchuk J, Schmidt U, Treasure J: Antidepressants for anorexia nervosa. Cochrane Database Syst Rev 2006;1:CD004365.
8.
Gowers S, Bryant-Waugh R: Management of child and adolescent eating disorders: the current evidence base and future directions. J Child Psychol Psychiatry 2004;45:63–83.
9.
Hay P, Bacaltchuk J, Claudino A, Ben-Tovim D, Yong P: Individual psychotherapy in the outpatient treatment of adults with anorexia nervosa. Cochrane Database Syst Rev 2003;4:CD003909.
10.
Meads C, Gold L, Burls A: How effective is outpatient care compared to inpatient care for treatment of anorexia nervosa? A systematic review. Eur Eat Disord Rev 2001;9:229–241.
11.
Crisp A, Norton K, Gowers S, Halek C, Bowyer C, Yeldham D, et al: A controlled study of the effect of therapies aimed at adolescent and family psychopathology in anorexia nervosa. Br J Psychiatry 1991;159:325–333.
12.
Dare C, Eisler I, Russell G, Treasure J, Dodge L: Psychological therapies for adults with anorexia nervosa: randomised controlled trial of out-patient treatments. Br J Psychiatry 2001;178:216–221.
13.
Gowers S, Clark A, Roberts C, Griffiths A, Edwards V, Bryan C, et al: Clinical effectiveness of treatments for anorexia nervosa in adolescents. Br J Psychiatry 2007;191:427–435.
14.
McIntosh V, Jordan J, Carter F, Luty S, McKenzie J, Bulik C, et al: Three psychotherapies for anorexia nervosa: a randomized, controlled trial. Am J Psychiatry 2005;162:741–747.
15.
Bergh C, Osgood M, Alters D, Maletz L, Leon M, Södersten P: How effective is family therapy for the treatment of anorexia nervosa? Eur Eat Disord Rev 2006;14:373.
16.
Le Grange D: How enthusiastic should we be about family-based treatment for adolescent anorexia nervosa? Eur Eat Disord Rev 2006;14:373–375.
17.
Vandereycken W: The place of inpatient care in the treatment of anorexia nervosa: questions to be answered. Int J Eat Disord 2003;34:409–422.
18.
Gowers S, Russell J, Beumont P, Touyz S, Roach P, Aslani A, et al: Longitudinal study of patients with anorexia nervosa 6 to 10 years after treatment: impact of adequate weight restoration on outcome. Ann NY Acad Sci 2000;904:614–616.
19.
Willer M, Thuras P, Crow S: Implications of the changing use of hospitalization to treat anorexia nervosa. Am J Psychiatry 2005;162:2374–2376.
20.
AWMF: Behandlungsleitlinie Essstörungen (S3). Düsseldorf, Arbeitsgemeinschaft Wissenschaftlicher Medizinischer Fachgesellschaften, 2010.
21.
Berkman N, Lohr K, Bulik C: Outcomes of eating disorders: a systematic review of the literature. Int J Eat Disord 2007;40:293–309.
22.
Steinhausen H: The outcome of anorexia nervosa in the 20th century. Am J Psychiatry 2002;159:1284–1293.
23.
Krauth C, Buser K, Vogel H: How high are the costs of eating disorders – anorexia nervosa and bulimia nervosa – for German society? Eur J Health Econ 2002;3:244–250.
24.
Becker BJ: Synthesizing standardized mean-change measures. Br J Math Stat Psychol 1988;41:257–278.
25.
Morgan H, Hayward A: Clinical assessment of anorexia nervosa: the Morgan-Russell outcome assessment schedule. Br J Psychiatry 1988;152:367–371.
26.
Statistisches Bundesamt: Gesundheitswesen – Mikrozensus 2009: Fragen zur Gesundheit – Körpermasse der Bevölkerung. Wiesbaden, De Statis, 2010.
27.
Berkeljon A, Baldwin S: An introduction to meta-analysis for psychotherapy outcome research. Psychother Res 2009;19:511–518.
28.
Wild B, Friederich H, Gross G, Teufel M, Herzog W, Giel K, et al: The ANTOP study: focal psychodynamic psychotherapy, cognitive-behavioural therapy, and treatment- as-usual in outpatients with anorexia nervosa – a randomized controlled trial. Trials 2009;10:23.
29.
Herzog T, Hartmann A, Falk C: Symptomorientierung und psychodynamisches Gesamtkomzept bei der stationären Behandlung der Anorexia nervosa. Psychother Psychosom Med Psychol 1996;46:11–22.
30.
Russell G, Szmukler G, Dare C, Eisler I: An evaluation of family therapy in anorexia nervosa and bulimia nervosa. Arch Gen Psychiatry 1987;44:1047–1056.
31.
Robin A, Siegel P, Koepke T, Moye A, Tice S: Family therapy versus individual therapy for adolescent females with anorexia nervosa. J Dev Behav Pediatr 1994;15:111–116.
32.
Howard K, Moras K, Brill P, Martinovich Z, Lutz W: Evaluation of psychotherapy: efficacy, effectiveness, and patient progress. Am Psychol 1996;51:1059–1064.
33.
Lueger R, Howard K, Martinovich Z, Lutz W, Anderson E, Grissom G: Assessing treatment progress of individual patients using expected treatment response models. J Consult Clin Psychol 2001;69:150–158.
34.
Lutz W, Saunders SM, Leon SC, Martinovich Z, Kosfelder J, Schulte D, et al: Empirically and clinically useful decision making in psychotherapy: differential predictions with treatment response models. Psychol Assess 2006;18:133–141.
35.
Altman D, Schultz K, Moher D, Egger M, Davidoff F, Elbourne D, et al: The revised CONSORT statement for reporting randomized trials: explanation and elaboration. Ann Intern Med 2001;134:663–694.
36.
Wilson G, Vitousek K, Loeb K: Stepped care treatment for eating disorders. J Consult Clin Psychol 2000;68:564–572.
37.
Bachar E, Latzer Y, Kreitler S, Berry EM: Empirical comparison of two psychological therapies: self psychology and cognitive orientation in the treatment of anorexia and bulimia. J Psychother Pract Res 1999;8:115–128.
38.
Ball J, Mitchell P: A randomized controlled study of cognitive behavior therapy and behavioral family therapy for anorexia nervosa patients. Eat Disord J Treat Prev 2004;12:303–314.
39.
Channon S, de Silva P, Hemsley D, Perkins RE: A controlled trial of cognitive-behavioural and behavioural treatment of anorexia nervosa. Behav Res Ther 1989;27:529–535.
40.
Eckert ED: Behaviour therapy in anorexia nervosa. Br J Psychiatry 1979;134:55–59.
41.
Eisler I, Dare C, Hodes M, Russell G, Dodge E, Le Grange D: Family therapy for adolescent anorexia nervosa: the results of a controlled comparison of two family interventions. J Child Psychol Psychiatry 2000;41:727–736.
42.
Geist R, Heinmaa M, Stephens D, Davis R, Katzman DK: Comparison of family therapy and family group psychoeducation in adolescents with anorexia nervosa. Can J Psychiatry 2000;45:173–178.
43.
Goldfarb LA, Fuhr R, Tsujimoto RN, Fischman SE: Systematic desensitization and relaxation as adjuncts in the treatment of anorexia nervosa: a preliminary study. Psychol Rep 1987;60:511–518.
44.
Hall A, Crisp A: Brief psychotherapy in the treatment of anorexia nervosa: outcome at one year. Br J Psychiatry 1987;151:185–191.
45.
Lock J, Agras W, Bryson S, Kraemer H: A comparison of short- and long-term family therapy for adolescent anorexia nervosa. J Am Acad Child Psychol 2005;44:632–639.
46.
Pike K, Walsh B, Vitousek K, Wilson G, Bauer J: Cognitive behavior therapy in the posthospitalization treatment of anorexia nervosa. Am J Psychiatry 2003;160:2046–2049.
47.
Pillay M, Crisp A: The impact of social skills training within an established in-patient treatment programme for anorexia nervosa. Br J Psychiatry 1981;139:533–539.
48.
Serfaty MA, Turkington D, Heap M, Ledsham L, Jolley E: Cognitive therapy versus dietary counselling in the outpatient treatment of anorexia nervosa: effects of the treatment phase. Eur Eat Disord Rev 1999;7:334–350.
49.
Treasure J, Todd G, Brolly M, Tiller J, Nehmed A, Denman F: A pilot study of a randomised trial of cognitive analytical therapy vs educational behavioral therapy for adult anorexia nervosa. Behav Res Ther 1995;33:363–367.
50.
Wallin U, Kronovall P, Majewski M: Body awareness therapy in teenage anorexia nervosa: outcome after 2 years. Eur Eat Disord Rev 2000;8:19–30.
51.
Weizman A, Tyano S, Wijsenbeek H, Ben DM: Behavior therapy, pimozide treatment and prolactin secretion in anorexia nervosa. Psychother Psychosom 1985;43:136–140.
52.
Fassino S, Abbate DG, Amianto F, Leombruni P, Garzaro L, Rovera G: Nonresponder anorectic patients after 6 months of multimodal treatment: predictors of outcome. Eur Psychiatry 2001;16:466–473.
53.
Szabo C: Tuberculosis and anorexia nervosa. S Afr Med J 1998;88:275–276.
54.
Bean P, Loomis C, Timmel P, Hallinan P, Moore S, Mammel J, et al: Outcome variables for anorexic males and females one year after discharge from residential treatment. J Addict Dis 2004;23:83–94.
55.
Bossert S, Schnabel E, Krieg J, Molitor P, Kemper J, Berger M: Integratives stationär-ambulantes Therapiekonzept bei Patienten mit Anorexia nervosa: ein revidierter Therapieansatz (Concept of integrative inpatient-ambulatory therapy in patients with anorexia nervosa: a revised therapeutic approach). Psychother Psychosom Med Psychol 1987;37:331–336.
56.
Brambilla F, Draisci A, Peirone A, Brunetta M: Combined cognitive-behavioral, psychopharmacological and nutritional therapy in eating disorders. 1. Anorexia nervosa – restricted type. Neuropsychobiology 1995;32:59–63.
57.
Calvo Sagardoy R, Fernandez Ashton A, Ayuso Mateos J, Bayon Perez C, Santo-Domingo Carrasco J: Between 5 and 9 years’ follow-up in the treatment of anorexia nervosa. Psychother Psychosom 1989;52:133–139.
58.
Channon S, de Silva W: Psychological correlates of weight gain in patients with anorexia nervosa. J Psychiatr Res 1985;19:267–271.
59.
Danziger Y, Carel C, Tyano S, Mimouni M: Is psychotherapy mandatory during the acute refeeding period in the treatment of anorexia nervosa? J Adolesc Health Care 1989;10:328–331.
60.
Deep-Soboslay A, Sebastiani L, Kaye W: Weight gain with anorexia nervosa. Am J Psychiatry 2000;157:1526.
61.
Fichter MM, Quadflieg N: Six-year course and outcome of anorexia nervosa. Int J Eat Disord 1999;26:359–385.
62.
Gerlinghoff M, Backmund H, Angenendt J, Linington A: Ein tagklinisches Therapiemodell für psychosomatische Essstörungen (A day hospital model for treating psychosomatic eating disorders). Verhaltenstherapie 1991;1:61–65.
63.
Griffiths R, Beumont P, Russell J, Touyz S, Moore G: The use of guardianship legislation for anorexia nervosa: a report of 15 cases. Aust NZ J Psychiatry 1997;31:525–531.
64.
Herpertz-Dahlmann B, Wewetzer C, Schulz E, Remschmidt H: Course and outcome in adolescent anorexia nervosa. Int J Eat Disord 1996;19:335–345.
65.
Herzog T, Zeeck A, Hartmann A, Nickel T: Lower targets for weekly weight gain lead to better results in inpatient treatment of anorexia nervosa: a pilot study. Eur Eat Disord Rev 2004;12:164–168.
66.
Kohle K, Mall H: Follow-up study of 36 anorexia nervosa patients treated on an integrated internistic-psychosomatic ward. Int J Eat Disord 1983;2:215–219.
67.
Lock J: Adjusting cognitive behavior therapy for adolescents with bulimia nervosa: results of case series. Am J Psychother 2005;59:267–281.
68.
Nussbaum M, Baird D, Sonnenblick M, Cowan K, Shenker I: Short stature in anorexia nervosa patients. J Adolesc Health Care 1985;6:453–455.
69.
Okamoto A, Yamashita T, Nagoshi Y, Masui Y, Wada Y, Kashima A, et al: A behavior therapy program combined with liquid nutrition designed for anorexia nervosa. Psychiatry Clin Neurosci 2002;56:515–520.
70.
Pertschuk M, Edwards N, Pomerleau OF: A multiple-baseline approach to behavioral intervention in anorexia nervosa. Behav Ther 1978;9:368–376.
71.
Pertschuk M, Forster J, Buzby G, Mullen J: The treatment of anorexia nervosa with total parenteral nutrition. Biol Psychiatry 1981;16:539–550.
72.
Steiner H, Mazer C, Litt I: Compliance and outcome in anorexia nervosa. Western J Med 1990;153:133–139.
73.
Sutandar-Pinnock K, Blake WD, Carter J, Olmsted M, Kaplan A: Perfectionism in anorexia nervosa: a 6–24-month follow-up study. Int J Eat Disord 2003;33:225–229.
74.
Thomä H: Anorexia nervosa: Geschichte, Klinik und Theorien der Pubertätsmagersucht (transl G. Brydone, New York, International Universities Press, 1967). Bern/Stuttgart, Huber/Klett, 1961.
75.
Waller DA, Mugan MN, Morshed T, Setnick J, Cummings M, Hynan LS: Three-year follow-up study of children and adolescents with anorexia nervosa initially treated in a continuum of care program. Eat Disord J Treat Prevent 2003;11:63–72.
76.
Zeeck A, Hartmann A, Wetzler-Burmeister E, Wirsching M: Zum Vergleich stationärer und tagesklinischer Behandlung der Anorexia nervosa (Comparison of inpatient and day clinic treatment of anorexia nervosa). Z Psychosom Med Psychother 2006;52:190–203.
77.
Andersen A, Stoner S, Rolls B: Improved eating behavior in eating-disordered inpatients after treatment: documentation in a naturalistic setting. Int J Eat Disord 1996;20:397–403.
78.
Barbarich N, McConaha C, Gaskill J, La Via M, Frank G, Achenbach S, et al: An open trial of olanzapine in anorexia nervosa. J Clin Psychiatry 2004;65:1480–1482.
79.
Bloks H, Spinhoven P, Callewaert I, Willemse-Koning C, Turksma A: Changes in coping styles and recovery after inpatient treatment for severe eating disorders. Eur Eat Disord Rev 2001;9:397–415.
80.
Carter J, Blackmore E, Sutandar-Pinnock K, Woodside D: Relapse in anorexia nervosa: a survival analysis. Psychol Med 2004;34:671–679.
81.
Geller J, Zaitsoff SL, Srikameswaran S: Tracking readiness and motivation for change in individuals with eating disorders over the course of treatment. Cogn Ther Res 2005;29:611–625.
82.
Gerlinghoff M, Backmund H, Franzen U: Evaluation eines tagesklinischen Behandlungsprogramms für Essstörungen (Evaluation of a day treatment program for eating disorders). Eur Eat Disord Rev 1998;6:96–106.
83.
Jacobi C, Dahme B, Rustenbach S: Vergleich kontrollierter Psycho- und Pharmakotherapiestudien bei Bulimia und Anorexia nervosa (Comparison of controlled psycho- and pharmacotherapy studies in bulimia and anorexia nervosa). Psychother Psychosom Med Psychol 1997;47:346–364.
84.
Lauer C, Gorzewski B, Gerlinghoff M, Backmund H, Zihl J: Neuropsychological assessments before and after treatment in patients with anorexia nervosa and bulimia nervosa. J Psychiatr Res 1999;33:129–138.
85.
Manara F, Manara A, Todisco P: Correlation between psychometric and biological parameters in anorexic and bulimic patients during and after an intensive day hospital treatment. Eat Weight Disord 2005;10:236–244.
86.
Moser DJ, Benjamin ML, Bayless JD, McDowell BD, Paulsen JS, Bowers WA, et al: Neuropsychological functioning pretreatment and posttreatment in an inpatient eating disorders program. Int J Eat Disord 2003;33:64–70.
87.
Ostuzzi R, Didonna F, Micciolo R: One-year weight follow-up in anorexia nervosa after inpatient psycho-nutritional rehabilitative treatment. Eat Weight Disord 1999;4:194–197.
88.
Piran N, Langdon L, Kaplan A, Garfinkel P: Evaluation of a day hospital for eating disorders. Int J Eat Disord 1989;8:523–532.
89.
Ro O, Martinsen E, Hoffart A, Rosenvinge J: Short-term follow-up of adults with long standing anorexia nervosa or non-specified eating disorder after inpatient treatment. Eat Weight Disord 2004;9:62–68.
90.
Santonastaso P, Friederici S, Favaro A: Sertraline in the treatment of restricting anorexia nervosa: an open controlled trial. J Child Adolesc Psychopharmacol 2001;11:143–150.
91.
Shugar G, Krueger S: Aggressive family communication, weight gain, and improved eating attitudes during systemic family therapy for anorexia nervosa. Int J Eat Disord 1995;17:23–31.
92.
Stonehill E, Crisp A: Psychoneurotic characteristics of patients with anorexia nervosa before and after treatment and at follow-up 4–7 years later. J Psychosom Res 1977;21:187–193.
93.
Treat T, Gaskill J, McCabe E, Ghinassi F, Luczak A, Marcus M: Short-term outcome of psychiatric inpatients with anorexia nervosa in the current care environment. Int J Eat Disord 2005;38:123–133.
94.
Vandereycken W, Pieters G: Short-term weight restoration in anorexia nervosa through operant conditioning. Scand J Behav Ther 1978;7:221–236.
95.
Zeeck A, Hartmann A, Buchholz C, Herzog T: Dropouts from in-patient treatment of anorexia nervosa. Acta Psychiatr Scand 2005;111:29–37.
96.
Benninghoven D, Jürgens E, Mohr A, et al: Different changes of body-images in patients with anorexia or bulimia nervosa during inpatient psychosomatic treatment. Eur Eat Disord Rev 2006;14:88–96.
97.
Ricca V, Castellini G, Lo Sauro C, Mannucci E, Ravaldi C, Rotella F, et al: Cognitive-behavioral therapy for threshold and subthreshold anorexia nervosa: a three-year follow-up study. Psychother Psychosom 2010;79:238–248.
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.