General practitioners' conceptions about treatment of depression and factors that may influence their practice in this area. A postal survey
© Andersson et al; licensee BioMed Central Ltd. 2005
Received: 31 December 2004
Accepted: 16 May 2005
Published: 16 May 2005
The way GPs work does not appear to be adapted to the needs of depressive patients. Therefore we wanted to examine Swedish GPs' conceptions of depressive disorders and their treatment and GPs' ideas of factors that may influence their manner of work with depressive patients.
A postal questionnaire to a stratified sample of 617 Swedish GPs.
Most respondents assumed antidepressive drugs effective and did not assume that psychotherapy can replace drugs in depression treatment though many of them looked at psychotherapy as an essential complement. Nearly all respondents thought that clinical experiences had great importance in decision situations, but patients' own preferences and official clinical guidelines were also regarded as essential. As influences on their work, almost all surveyed GPs regarded experiences from general practice very important, and a majority also emphasised experiences from private life. Courses arranged by pharmaceutical companies were seen as essential sources of knowledge. A majority thought that psychiatrists did not provide sufficient help, while most respondents perceived they were well backed up by colleagues.
GPs tend to emphasize experiences, both from clinical work and private life, and overlook influences of collegial dealings and ongoing CME as well as the effects of the pharmaceutical companies' marketing activities. Many GPs appear to need more evidence based knowledge about depressive disorders. Interventions to improve depression management have to be supporting and interactive, and should be combined with organisational reforms to improve co-operation with psychiatrists.
Mood disturbances are widespread in western societies and general practitioners (GPs) see many patients with depressive disorders[1, 2]. Only a minority of these patients consult directly for psychological problems. More often they consult their doctors because of bodily symptoms. In addition, depressive disorders often present combined with anxiety states[4, 5] and a large proportion of the depressed patients in primary care also suffer from concurrent somatic diseases. Consequently, when GPs see depressed patients, they often have to deal with complicated cases. The ways GPs handle these patients have been criticised because of deficient identification and insufficient treatment of the depressive disorders [7–11].
In two previous studies we explored Swedish GPs' conceptions of depressive disorders and their ideas on how their working methods with depressed patients had been shaped. We found a considerable variation in their conceptions about depression, but a relative consensus concerning drug treatment of major depression. As regards manner of working, many interviewed GPs considered individual experiences from general practice and private life as more influential than academic education and professional literature[12, 13].
When further examining the geographic variation of sales levels of antidepressant agents (ADs) we found weak but statistically significant associations with some of local GPs' conceptions of factors that may have formed the way they treat depressive patients. Thus, high sales levels correlated positively with a high evaluation of ADs' effectiveness in depression and panic disorders and were inversely correlated with the degree of appreciation of psychotherapy-based treatments. High sales levels were also associated with a high evaluation of GPs' own clinical and private experience, with a positive appreciation of the work with depressed patients and with a high level of participation in the pharmaceutical companies' activities.
The purpose of the present study was to elaborate further the frequencies of Swedish GPs' conceptions of depressive disorders and its treatment and of their ideas of factors that may influence their manner of work with depressive patients.
The present study made use of the same data collection as the previous study of the relations between GPs' conceptions of treatment of depression and local sales levels of ADs. For that purpose we had surveyed a stratified sampling of GPs based on the population's purchases of ADs in each GP's working area. Information on purchases of ADs for the year 2000 in each Swedish municipality was obtained from Apoteket AB (The National Corporation of Swedish Pharmacies). We selected three groups of municipalities; those with the highest, the average, and the lowest AD sales rates. For each sales group, municipalities were included according to their sales figures until the total number of GPs working in the municipalities of the group approximated 200. In that way we selected 617 GPs working in a total of 60 municipalities. The respondents of a pilot study were not included. The names and addresses were received from Läkarmatrikeln 2001, a national register of Swedish physicians.
A postal questionnaire was designed based on the findings in the interview study[12, 13]. A five-point Likert scale ranging from "Agree not at all" to "Agree completely" and from "Very little importance" to "Very great importance" was used for most items. The questionnaire was tested in 20 GPs. That pilot study had a response rate of 75 per cent, no internal drop off, i.e. all responders answered all items, and the answers were spread over the alternatives of the Likert scale on most items. After a few modifications the questionnaire was finalized.
In the graphs, the GP's answers are combined to a three-point scale after merging alternatives 1 and 2 and alternatives 4 and 5 of the original five-point Likert scale.
The survey was carried out in spring 2001. The questionnaires, including a return envelope, were mailed from the NEPI Foundation, a non-profit organisation for studies on epidemiology of drugs, to all the 617 GPs working in the selected municipalities. No incentive for participation was offered. Two reminders were sent if no answer was received, the second of which included a new questionnaire.
After the data collection, the work places of non-respondents were contacted to ascertain whether or not these GPs were still employed at the time of the survey.
The present analysis of data was not reported to the Ethics Committee because our earlier studies had been approved on the administrative level alone.
After the second reminder 317 of the 617 mailed questionnaires were returned. Among non-respondents 82 had left their work places leaving 535 GPs eligible for the survey. The response rate of the eligible participants was 59.4 percent: 56 percent among the 339 men and 65 percent among the 196 women.
Among respondents, the average age was 48.7 years and they had worked as GPs for 12.7 years on average. Sixty percent were male. Among non-respondents available for the survey, the average age was 59.0 years and 69 percent were male.
To work with depressive patients was perceived a more positive than negative task by 69 per cent of the respondents, "neither positive, nor negative" by 27 per cent and mainly negative by four per cent of the respondents.
Factors that may have influenced on GPs' manner of working with depressed patients. Share of respondents that have marked "great" or "very great" importance on the factor in question.
Experiences from general practice
Experiences from private life
Residency in psychiatry
Education on communication
A mentor colleague
Reading fiction literature
Popular reading on psychiatry/psychology
Respondents' reports of occasions of participation in education/lectures each year. Number of respondents.
1 – 3 /year
4 – 7/year
Arrangements without industry involvement
Arranged by pharmaceutical industries
Most respondents stated that they had good possibilities to discuss with their colleague GPs. In contrast, a majority claimed that psychiatrists do not provide them with the necessary support for patient care.
Our purpose was to investigate conceptions concerning depressive disorders among Swedish GPs. We found that GPs regarded experiences from family medicine and from private life more important than university and post-graduate education as influences on their work with depressive patients. Most GPs had great confidence in ADs for treatment of depressive disorders and panic disorder and thought that the drugs are effective also in obsessive-compulsive disorders and social phobias. A majority of GPs also agree that commercially sponsored courses may influence physicians in an inappropriate way, but many of them do not recognise that risk.
For the purpose of an additional study utilizing the same data collection, the sampling procedure was not randomised but stratified. The participants were all GPs who worked in the selected municipalities. They constituted groups of GPs with different levels of prescribing ADs and were from all parts of Sweden. We assume the procedure resulted in an appropriate sample of Swedish GPs.
A response rate of 59 percent among eligible GPs is well in line with comparable surveys among physicians, although such a rate means that the possible impact of selection bias must be considered [16–20]. However, there are solid arguments that the result of the questionnaire can be viewed as representative even if the response rate is moderate, when a homogenous professional group is surveyed on issues of central professional importance [22–24]. We assume that the results are representative of all the selected GPs even if there were minor differences in gender distribution and age between responders and non-responders.
The questionnaire was not validated against any earlier instrument, but the items of the questionnaire were extracted from findings of the previous interview studies among GPs, a procedure that should ensure the relevance of the items [12, 13]. The questionnaire was tested by a pilot study that had a response rate of 75 per cent and an extensive spread of responses over the alternatives of the Likert scales. In the present study there were a few internal drop-offs, i.e. some responders did not answer all items. Altogether, we claim that the present study has acceptable representativeness and validity.
Interpretation of the findings
The respondents opinions of the usefulness of ADs in treatment of moderate depression and anxiety disorders were in accordance with findings in our previous interview study and with actual recommendations[12, 25, 26]. Psychotherapy was considered most often as a complement to drugs in the treatment of depression. In the previous interview study, the majority of the interviewees presented a positive attitude to psychotherapy. There is now good evidence for the effectiveness of several forms of psychotherapy against moderate depressions [27–34]. These findings appear not to have become generally accepted by Swedish GPs, probably partly due to the limited access to psychotherapists.
A clear majority of the GPs in the present study perceived the work with depressed patients in a predominantly positive way. A notable finding was the great importance they attached to their own experiences from family medicine and from private life. That was valid for both treatment decisions and for their manner of working, and the same came out in the interview study. Judging from these responses, GPs try to consider treatment guidelines as well as patients' attitudes to treatment and their individual experiences of similar situations when they propose treatments. In such complex decision situations, the physicians seem to perceive their individual experiences as indispensable. That is in accordance with Schön, who reported that practitioners gather repertoires of understandings and actions from their experiences, and that they use their repertoires to guide their professional actions. The quality of this guidance varies. A practitioner must have worked through his/her experiences by discussions and reflection if his/her repertoire should serve as a valuable guide.
To a substantial degree, the outcome in drug treatment of depression is dependent on the therapeutic alliance between the physician and the patient. This alliance is built up by the physician's ability to communicate, which is acquired mainly through individual experience, guiding and reflective reading.
When professionals rely primarily on personal experiences as grounds for clinical assessment and intervention, they demonstrate preference for "knowledge in action" over inquiring scientific knowledge, and, tentatively, a scepticism regarding the usefulness of scientific literature. Many respondents' low or moderate evaluation of their undergraduate education indicates such scepticism. Lennarson Greer writes about "the problem of uncertainty" as a key problem of the medical profession. For many physicians, trust in personal experiences and collegial support appear to be better ways to handle the worry of uncertainty than reading scientific literature[38, 39].
Thus, the respondents' emphasis on their own experiences is understandable, but, on the other side, a low evaluation of scientific and evidence-based knowledge may imply insufficient capability to form an accurate opinion of a patient's state and to propose an optimal treatment.
Even if the respondents ranked their own experiences of clinical work and private life as most important, they also indicated that lectures and professional reading are important sources of knowledge about depression. Further, the striking increase of prescriptions of ADs in the 1990s indicates that recognition and management of depressive disorders have changed[40, 41]. Reasonably, that is due to other influences than GPs' own experience. Psychiatric specialists have probably had an impact on GPs' prescribing, partly directly by initiating or recommending treatment for patients, partly indirectly by education and informal consultations. The pharmaceutical companies' marketing of ADs is another powerful incentive to increase the use of ADs. In our previous study we learned that high sales levels correlated with more participation in the pharmaceutical companies' activities. Also other studies have documented the impact of commercial marketing on prescribing and professional behaviour of physicians [42–45].
GPs stand out as a cultural subgroup, where ongoing educational, collegial and marketing influences are obvious from outside but not quite clear for the members themselves. Many GPs appear to overlook these external influences on their thinking and professional behaviour, while they tend to over-emphasize individual experiences as a base of their clinical work.
To some extent, GPs' disappointment with psychiatric services may depend on unrealistic ideas about psychiatrists' ability to solve GPs' problems. It has been pointed out that GPs and psychiatrists have different preconditions in their clinical work, and that they meet different kinds of depressed patients[3, 46]. Projects to improve depression management have reported that simple guideline implementation and educational strategies were generally ineffective. In short term evaluation, effective strategies were those with broad interventions that incorporated clinical education, enhanced team work and a greater integration between primary care and psychiatry [46–50].
In their conceptions of factors that form their way to treat depressed patients, GPs tend to emphasize experiences, both from clinical work and private life, and overlook influences of collegial dealings and ongoing CME as well as the effects of the pharmaceutical companies' marketing activities. Many GPs appear to need more evidence based knowledge about depressive disorders. Interventions to improve depression management have to be supporting and interactive and combined with organisational reforms to improve co-operation with psychiatrists.
The authors thank the NEPI foundation for administrative support to the study.
- Cross-National Collaborative Group: The Changing Rate of Major Depression. Cross-National Comparisons. JAMA. 1992, 268: 3098-3105. 10.1001/jama.268.21.3098.View ArticleGoogle Scholar
- Kessler RC, Berglund P, Demler O, Jin R, Koratz D, Merikangas KR, Rush AJ, Walters EE, Wang PS: The epidemiology of Major Depressive disorder. Results from the National Comorbidity Survey Replication (NCS-R). JAMA. 2003, 289: 3095-3105. 10.1001/jama.289.23.3095.View ArticlePubMedGoogle Scholar
- Kirmayer LJ, Robbins JM, Dworkind M, Yaffe MJ: Somatization and the recognition of depression and anxiety in primary care. Am J Psychiatry. 1993, 150: 734-741.View ArticlePubMedGoogle Scholar
- Lecrubier Y: Prescribing Patterns for Depression and Anxiety Worldwide. J Clin Psychiatry. 2001, 62: 31-36.PubMedGoogle Scholar
- Bingefors K, Isacson DG: Concomitant prescribing of tranquilizers and hypnotics among patients receiving antidepressant prescriptions. Annals of Pharmacotherapy. 1998, 32: 531-535. 10.1345/aph.17211.View ArticlePubMedGoogle Scholar
- Bingefors K: Prescription drug and health care use among Swedish patients treated with antidepressants. Antidepressant-treated patients. Population-based longitudinal studies. 1996, Acta Universitatis Upsaliensis, Uppsala, 25-41.Google Scholar
- Bodlund O: Ångest och depression dolt problem i primärvården. (Anxiety and depression go unrecognised in primary care. In Swedish with summary in English.). Läkartidningen. 1997, 94: 4612-4618.PubMedGoogle Scholar
- Bodlund O: Flertalet deprimerade patienter kan behandlas i primärvården. (Most depressed patients can be treated in primary care. In Swedish with summary in English.). Läkartidningen. 2000, 97: 1244-1249.PubMedGoogle Scholar
- Orrell M, Collins E, Shergill S, Katona C: Management of depression in the elderly by general practitioners: Use of antidepressants. Family Practice. 1995, 12: 5-11.View ArticlePubMedGoogle Scholar
- Rosholm J-U, Gram L, Damsbo N, Hallas J: Antidepressant treatment in general practice – An interview study. Scand J Prim Health Care. 1995, 13: 281-286.View ArticlePubMedGoogle Scholar
- Mojtabai R: Diagnosing depression and prescribing antidepressants by primary care physicians: the impact of practice style variations. Mental Health Service Res. 2002, 4: 109-1018. 10.1023/A:1015204401225.View ArticleGoogle Scholar
- Andersson S, Troein M, Lindberg G: Conceptions of depressive disorder and its treatment among 17 Swedish general practitioners. A qualitative study. Fam Pract. 2001, 18: 64-70. 10.1093/fampra/18.1.64.View ArticlePubMedGoogle Scholar
- Andersson S, Lindberg G, Troein M: What shapes GPs' work with depressed patients? A qualitative interview study. Fam Pract. 2002, 19: 623-631. 10.1093/fampra/19.6.623.View ArticlePubMedGoogle Scholar
- Andersson S, Lindberg G, Troein M: General practitioners' conceptions of depressive disorders in relation to regional sales levels of antidepressive drugs. A study based on a postal survey and ecological data. Scand J Prim Health Care. 2005, 23: 11-17. 10.1080/02813430510015250.View ArticlePubMedGoogle Scholar
- Questionnnaire. in English, [http://www.nepi.net/questionnaire.pdf]
- Cartwright A: Professionals as responders: variations in and effects of response rates to questionnaires, 1961–77. BMJ. 1978, 2: 1419-1421.View ArticlePubMedPubMed CentralGoogle Scholar
- McAvoy BR, Kaner EFS: General practice postal surveys: a questionnaire too far?. BMJ. 1996, 313: 732-733.View ArticlePubMedPubMed CentralGoogle Scholar
- Kaner EFS, Haighton CA, McAvoy BR: "So much post, so busy with practice – so, no time!": A telefone survey of general practitioners' reasons for not participating in postal questionnaire surveys. Br J Gen Pract. 1998, 48: 1067-1069.PubMedPubMed CentralGoogle Scholar
- Sibbald B, Addington-Hall J, Brenneman D, Freeling P: Telephone versus postal surveys of general practitioners: methodological considerations. Br J Gen Pract. 1994, 44: 297-300.PubMedPubMed CentralGoogle Scholar
- Asch DA, Jedrziewski MK, Christakis NA: Response rates to mail surveys published in medical journals. J Clin Epidemiol. 1997, 50: 1129-1136. 10.1016/S0895-4356(97)00126-1.View ArticlePubMedGoogle Scholar
- Leslie L: Are high response rates essential to valid surveys?. Soc Sci Res. 1972, 1: 323-334. 10.1016/0049-089X(72)90080-4.View ArticleGoogle Scholar
- Sobal J, Ferentz KS: Comparing physicians' responses to the first and second mailings of a questionnaire. Eval Health Prof. 1989, 12: 329-339.View ArticleGoogle Scholar
- Cockburn J, Pit S: Prescribing behaviour in clinical practice: patients' expectations and doctors' perceptions of patients' expectations – a questionnaire study. BMJ. 1997, 315: 520-523.View ArticlePubMedPubMed CentralGoogle Scholar
- Kellerman SE, Herold J: Physicians response to surveys. A review of the literature. Am J Prev Med. 2001, 20: 61-67. 10.1016/S0749-3797(00)00258-0.View ArticlePubMedGoogle Scholar
- Läkemedelsverket (Swedish Medical products agency): Workshop – Farmakoterapi vid depression. Rekommendationer. (Workshop – Drug therapy for depression. Guidelines. In Swedish). Information från Läkemedelsverket. 1995, 309-322. 5
- Läkemedelsverket (Swedish Medical products agency): Workshop – Farmakoterapi vid ångest. Behandlingsrekommendationer. (Workshop – Drug therapy for anxiety. Guidelines.In Swedish). Information från Läkemedelsverket. 1995, 9-17. (1)
- Catalan J, Gath DH, Anastasiades P, Bond SAK, Day A, Hall L: Evaluation of a brief psychological treatment for emotional disorders in primary care. Psychol Med. 1991, 21: 1013-1018.View ArticlePubMedGoogle Scholar
- Dobson KS: A meta-analysis of the efficacy of cognitive therapy for depression. J Consult Clin Psychol. 1989, 57 (3): 414-419. 10.1037//0022-006X.57.3.414.View ArticlePubMedGoogle Scholar
- Dowrick C, Dunn G, Ayuso-Mateos JL, Dalgaard OS, Page H, Lehtinen V, Casey P, Wilkinson C, Vazquez-Barquero JL, Wilkinson G: Problem solving treatment and group psychoeducation for depression: multicentre randomised controlled trial. BMJ. 2000, 321 (7274): 1450-4. 10.1136/bmj.321.7274.1450.View ArticlePubMedPubMed CentralGoogle Scholar
- Fava GA, Rafanelli C, Grandi S, Canestrari R, Morphy MA: Six-year outcome for cognitive behavioural treatment of residual symptoms in major depression. Am J Psychiatry. 1998, 155 (10): 1443-1445.View ArticlePubMedGoogle Scholar
- Fava GA, Rafanelli C, Grandi S, Conti S, Belluardo P: Prevention of recurrent depression with cognitive behavioural therapy: preliminary findings. Arch Gen Psychiatry. 1998, 55 (9): 816-820. 10.1001/archpsyc.55.9.816.View ArticlePubMedGoogle Scholar
- Paykel ES, Scott J, Teasdale JD, Johnson AL, Garland A, Moore R, Jenaway A, Cornwall PL, Hayhurst H, Abbot R, Pope M: Prevention of Relapse in residual Depression by Cognitive Therapy: a controlled trail. Arch Gen Psychiatry. 1999, 56: 829-35. 10.1001/archpsyc.56.9.829.View ArticlePubMedGoogle Scholar
- Chilvers C, Dewey M, Fielding K, Gretton V, Miller P, Palmer B, Weller D, Churchill R, Williams I, Bedi N, Duggan C, Lee A, Harrison G: Antidepressant drug and generic counselling for treatment of major depression in primary care: randomised trial with patient preference arms. BMJ. 2001, 322: 772-775. 10.1136/bmj.322.7289.772.View ArticlePubMedPubMed CentralGoogle Scholar
- SBU (The Swedish Council on Technology Assessment in Health Care): Behandling av depressionssjukdomar. En systematisk litteraturöversikt. (Treatment of depressive disorders. A systematic literature review. In Swedish.). 2004, Stockholm, ISBN: 91-87890-87-9, 91-87890-88-7, 91-87890-94-1.Google Scholar
- Schön DA: The Reflective Practitioner. How Professionals Think in Action. 1996, New York: Basic Books, Inc, ISBN 0-465-06874-x (ib.), 0-465-06876-6, 0-465-06878-2 (h.)Google Scholar
- Weiss M, Gaston L, Propst A, Wisebord S, Zickerman V: The Role of the Alliance in the Pharmacologic Treatment of Depresson. J Clin Psychiatry. 1997, 58: 196-204.View ArticlePubMedGoogle Scholar
- Molinder B: Tacit Knowledge and Silenced Knowledge: Fundamental Problems and Controversies. Skill and Education. Reflection and Experience. Edited by: Göranzon B, Florin M. 1992, London: Springer Verlag, 9-31.View ArticleGoogle Scholar
- Lennarson Greer A: The state of the art versus the state of the science. The Diffusion of New Medical Technologies into Practice. Int J Technol Assess Health Care. 1988, 4: 5-26.View ArticleGoogle Scholar
- Smith R: What clinical information do doctors need?. BMJ. 1996, 313: 1062-1068.View ArticlePubMedPubMed CentralGoogle Scholar
- Nordenstam I, Nilsson JLG: Antidepressiva medel. Svensk läkemedelsstatistik 92. (Antidepressive agents. Swedish statistics of drugs 92. In Swedish.). 1993, Stockholm: Apoteksbolaget, 160-162.Google Scholar
- Burman K: Antidepressiva medel. Svensk läkemedelsstatistik 00. (Antidepressive agents. Swedish statistics of drugs 00. In Swedish.). 2001, Stockholm: Apoteket AB, 211-213.Google Scholar
- Avorn J, Chen M, Hartley R: Scientific versus Commercial Sources of Influence on the Prescribing Behaviour of Physicians. Am J Med. 1982, 73: 4-8. 10.1016/0002-9343(82)90911-1.View ArticlePubMedGoogle Scholar
- Wang TJ, Ausiello JC, Stafford RS: Trends in Antihypertensive Drug Advertising, 1985–1996. Circulation. 1999, 99: 2055-2057.View ArticlePubMedGoogle Scholar
- Wazana A: Physicians and the Pharmaceutical Industry. Is a Gift Just a Gift?. JAMA. 2000, 283: 373-380. 10.1001/jama.283.3.373.View ArticlePubMedGoogle Scholar
- Watkins C, Moore L, Harvey I, Carthy P, Robinson E, Brawn R: Characteristics of general practitioners who frequently see drug industry representatives: national cross sectinal survey. BMJ. 2003, 326: 1178-1179. 10.1136/bmj.326.7400.1178.View ArticlePubMedPubMed CentralGoogle Scholar
- Schwenk TL, Klinkman MS, Coyne JC: Depression in the Family Physician's Office: What the Psychiatrist Needs to Know: The Michigan Depression Project. J Clin Psychiatry. 1998, 59: 94-100.PubMedGoogle Scholar
- Rutz W, von Knorring L, Wålinder J, Wistedt B: Effect of an educational program for general practitioners on Gotland on the pattern of prescription of psychotropic drugs. Acta Psychiatr Scand. 1990, 82: 399-403.View ArticlePubMedGoogle Scholar
- Bodlund O, Andersson S-O, Mallon L: Effects of consulting psychiatrist in primary care. 1-year follow-up of diagnosing and treating anxiety and depression. Scand J Prim Health Care. 1999, 17: 153-157. 10.1080/028134399750002566.View ArticlePubMedGoogle Scholar
- Thompson C, Konmonth AL, Stevens L: Effects of a clinical-practice guideline and practice-based education on detection and outcome of depression in primary care: Hampshire Depression Project randomised controlled trial. Lancet. 2000, 355: 185-91. 10.1016/S0140-6736(99)03171-2.View ArticlePubMedGoogle Scholar
- Gilbody S, Whitty P, Grimshaw J, Thomas R: Educational and Organizational Interventions to Improve the Management of Depression in Primary Care. JAMA. 2003, 289: 3145-3151. 10.1001/jama.289.23.3145.View ArticlePubMedGoogle Scholar
- The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2296/6/21/prepub
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.