Clinical use of coping in affective disorder, a critical review of the literature
© Christensen and Kessing; licensee BioMed Central Ltd. 2005
Received: 20 July 2005
Accepted: 07 October 2005
Published: 07 October 2005
The relationship between life stressors, coping and affective disorder is interesting when predicting onset of a affective disorder and relapse of mood episodes.
A litteratur review of cross-sectional and longitudinal studies concerning coping and affective disorder in adults including a Medline and Embase search was conducted.
11 cross-sectional studies and 17 longitudinal studies concerning affective disorder and coping were found, among these, two studies include patients with bipolar disorder exclusively. Only four studies elucidate whether emotion-oriented and/or avoidance coping styles are associated with a higher risk of developing affective disorder, so this hypothesis remains unclear. Most studies shows that emotion-oriented and avoidance coping strategies are associated with relapse of depressive episodes. Conversely, problem-focused and task-oriented coping seem to be associated with a good outcome.
There is a gap between coping theory and clinical use of coping and the clinical relevance of coping is, though promising, still unclear. In future research it is recommended to concentrate on development of a semi-structured interview combining coping style, life events and personality traits.
Psychosocial stressors may precipitate depression [1, 2] and presumably also mania . However, most persons exposed to stressful events do not develop psychiatric impairments . This raises the question: why do some people experience an affective disorder in relation to a stressful life event and others do not? The answer is complex; it involves genetic loading, personality, prior experiences, parental style, social network and probably how individuals deal or cope with stress.
Coping and stress are aspects of life and coping style plays an important role in individual well-being. As formulated by H. Selye "that although we cannot avoid stress as long as we live, we can learn a great deal about how to keep its damaging side effects "distress" to a minimum" . Freud's interest in defence mechanisms had a close connection to what today is named coping . He believed some defence mechanisms to be healthier or less regressed than others in the same way that some coping styles seem to be associated with a healthier outcome. Synonyms for coping may be mastery, adaptation or behavioural style. Coping is defined in various ways: "any response to external life strains that serves to prevent, avoid or control emotional distress" , or as "constantly changing cognitive and behavioural efforts to manage specific external and/or internal demands that are appraised as taxing or exceeding the resources of the person" .
The failure of coping to deal adaptively with stress may lead to mental and physical illness. In general, people who rely more on approach coping tend to adapt better to life stressors and experience fewer psychological problems . Approach and task-oriented coping are strategies involving problem solving, seeking information and attempts to alter the situation . Conversely, avoidance and emotion-oriented coping strategies seem to be associated with psychological distress . Avoidance coping describes activities aimed at avoiding the stressful situation and involves denial, wishful thinking and withdrawal . Emotion-oriented coping describes emotional reactions that are self-orientated in order to reduce stress. These reactions involve emotional responses (individuals blaming themselves for being too emotional, becoming angry-, or tense)  and ruminative responses defined as: behaviours and thoughts that focus attention on depressive symptoms and on the implication of these symptoms (individuals thinking how tired they feel and why they get depressed, why others do not) .
Many studies of coping examine the relationship between coping and somatic illness. Research on the relation of coping and depressive disorder has attracted attention, but in clinical psychiatry there is a gap between clinical practice and research [14, 15]. With changing treatment approaches for depressive and bipolar disorders such as interpersonal psychotherapy and cognitive-behavioural therapy coping may be important as a target for treatment. Therefore clinical studies involving coping and depressive and bipolar disorders in adults are reviewed in order to investigate two hypotheses; Are avoidance and emotion-oriented coping strategies associated with an increased risk of developing an affective disorder and with a higher risk of relapse of mood episodes?
Electronic searching in Embase and Medline using the combination of the following terms: Mood Disorders or Bipolar Disorder or Depression (MeSH-terms) Mania or Manic-depressive Illness (Text-words) and Coping (Text-word): 5864 hits Medline, 3016 hits Embase. Studies of coping and affective disorder were selected by reading headings and abstracts. The following studies were excluded; coping and somatic illness, coping in children and adolescents and studies of coping concerning individuals as employees, parents etc. Medline Index starts in 1968. The search was ended at March 2005.
As seen from the Tables, 11 cross-sectional studies and 17 follow-up studies were identified. The studies are presented in three tables according to design and in historical order. Five studies investigated the same sample [16, 35, 36, 40, 43].
Cross-Sectional studies of the relationship between mood disorder and coping style.
Study Controlled = CON
Coping responses directed toward problem solving and affect regulation were associated with less dysfunction. Emotional discharge responses were linked to greater dysfunction.
Depressed patients more often reported avoidance strategies to cope and non-depressed utilize active coping techniques
The depressed group used more emotion-focused coping than control persons.
Significantly positive correlation between high depression scores and emotion oriented coping. Significantly negative correlation between high depression scores and task oriented coping.
40 bipolar patients
Patients' level of social functioning was related to their level of insight and how well they coped with prodromes of mania and whether they could detect prodromes of depression.
248 outpatients major depression.
Ca 35 yr
The more depressed patients used passive reaction pattern and avoidance significantly more often than less depressive patients. Passive reaction was the most consistent predictor of high depression score.
211 outpatients with major depression.
Active approach and seeking social support associated with a higher quality of life. No gender differences in coping. Avoidance coping was related to higher severity of depression.
41 in and out patients, 41 control persons
Depressive patients reported more social stress and used ineffective coping strategies and wishful thinking more often than the control persons.
229 dysthymic, major depressive. 44 controls
MADRS, CGI, CGIS, DHUS
Among depressive patients the severity of illness was associated with emotion focused coping, whereas control-persons favoured the use of cognitive strategies.
109 outpatients unipolar
SCID, HRSD, RSQ
Rumination was associated with higher levels of depression. Distraction was associated with lower level of depression.
298 outpatients major depression.
Task-oriented and social coping were associated negatively and emotion-oriented coping was associated positively with high scores on depression and anxiety.
Short-term (3–6 months] studies of the relation between coping and mood disorder.
Study Controlled = CON
Sex % Men
Parker  1982, CON
95 from a non-clinical group
Disturbances in antidepressive behaviours were more likely to be a consequence of rather than an antecedent of depression
Parker  1986
Higher self-consolation scores predicted less improvement. Those who scored low on three subscales self-consolation, distraction and socialization had better improvement
Schussler , 1992
40 depressed patients
Found difficulty in distinguish between symptoms of depression and certain coping behaviours [e.g. withdrawal]
Ravindran  1995 CON
17 dysthymia 17 depressive and 18 controls.
Recovery from depression was associated with change in coping style, so that patients relied less on inappropriate emotion-focused coping strategies.
Kuehner  1999
A diagnosis of depression was associated with rumination. Baseline rumination predicted follow-up levels of depression.
Uehara  2002
36 depressed, 13 anxiety
Task-oriented coping was influenced by depression. Emotion-oriented coping was influenced by anxiety. State and treatment phase affected coping measurement
Yamada  2003
105 depressed patients
Patients with a good outcome at 6 months used significantly more rumination while patients with a poor outcome used significantly more dangerous activity
Long-term (over 6 months] studies of the relation between coping and mood disorder.
Study Controlled = CON
Follow up year
Sex Men %
Coyne  1981, CON
15 depressed and 72 controls
HSCL, WCL 4 weeks intervals
The coping of depressed persons was characterized by seeking emotional support and by wishful thinking.
Billings [35, 36] 1985, CON
Patients at follow-up used significantly more affect regulation and less reliance on information seeking and emotional discharge, latter coping styles were associated with poorer outcome
Swindle  1989, CON
Problem solving related to less depression and greater self-esteem. Emotional discharge associated with depression.
Hoffart  1993
21 depressed 17 depr/phobia, 23 agoraphobia.
Seeking social support may be a trait dependent coping style. Problem focused coping and wishful thinking appeared as a state phenomena.
Sherbourne  1995
Better clinical course of depression was associated with more active and less avoidant coping styles
Moos  1999, CON
Patients were at risk for a chronic course if they coped with stressors by avoiding being with people.
Oldehinkel  2000
86 from primary care
PSE, DSM, UCL
LEDS, SRS, ABV
Predictors that expedited remission were high self-esteem and a tension reducing coping style.
Lam  2001
More who used stimulating coping strategies had a manic relapse. More who used passive coping strategies had a depressive relapse.
Holahan  2003, CON
HDL, RDC, DTC
Patient who more often drank to cope at baseline had a stronger association to depressive symptoms and drinking problems.
Szadoczky  2004
HRSD, MMPI, WCC, SAS, LEQ
No significant difference between the group of remitters and the group of non-remitters in problem-solving coping and emotion-focused coping.
Regarding the two hypotheses none of the studies were capable of answering whether certain coping strategies are predictive of affective disorder. Most studies showed that in depressive disorder avoidance and emotion-oriented coping strategies seem to be related to recurrence/relapse of depressive episodes. These coping strategies might also be associated with an increased time to recovery. Only a few studies on bipolar disorder were identified, limiting the findings to depressive disorder mainly. In the cross-sectional and short-term studies it is difficult to make a clear distinction between coping processes and symptoms, and avoidance and emotion-oriented coping styles seemed to be state related, so the results of these studies are not able to answer our hypothesis.
Regarding the trait or state effect, the use of cross-sectional designs and designs with a short follow-up period can be problematically because of the possibility of measuring residual depressive symptoms. The coping style of an individual may change during a depresive or manic episode, as illustrated in the short-term studies. Possibly, the emotion-oriented coping style found especially in the cross-sectional studies could be explained by a state-dependent consequence of a depressed mood. One way to determine whether the anomalies are caused by the depressive or manic episode (state model) is to include a control group. Among the 28 studies, 12 included a control group. In the follow-up studies, the lack of a control group makes it difficult to distinguish whether the changes that occurred reflect normalization of coping over time or whether the changes reflect changes in affective symptoms. The best impression of the relation between coping and state comes from the follow-up studies that used repeated measures of affective symptoms, life events and coping behaviour and include a control group [34–37, 40, 43]. The studies with a long follow-up time [37, 40, 41, 43] illustrate the time-relation between coping and affective episodes: these studies support the hypothesis that emotion-oriented and avoidance coping strategies seem to be associated with increased risk of relapse. So, the controlled follow-up studies provided the most valid study design to comply with methodological problems.
It is difficult to compare studies involving heterogeneous samples and it is likely that selection bias influenced the results unpredictable. Most studies used clinical samples of unipolar patients. A general limitation is the lack of attention to confounding variables such as the duration and severity of the mood episodes and the number of previous episodes. Some studies investigated these parameters [21, 23, 28, 30, 39–41] and these results did not deviate substantially from those of other studies. The use of passive coping strategies predicted relapse of depression and stimulating coping strategies increased the relapse risk of mania but from the limited number of studies concerning bipolar disorder [20, 42] it is not possible to elucidate the relation between coping and bipolar disorder. The little attention to research into coping mechanisms and mania was already stressed in a case report in 1990  and latest by the authors in a research report from 1999 where the development and validation of the coping inventory for prodomes of mania was described .
Participants were registered differently according to comorbid psychopathology. In one study the most common comorbid disorders were panic disorder, dysthymia and social phobia . One study concentrated on comorbid agoraphobia  and one on comorbid personality disorder . In some studies patients with comorbid psychopathology were excluded [16, 21, 22, 28, 29]. Although the relation of coping processes and risk for substance abuse is a defined area of coping research , only two studies [39, 43] adjusted for the possible effect of comorbid substance use as a part of a coping strategy. This may have affected the results so that some inappropriate coping strategies are not identified.
As seen from the tables, the studies measured coping differently, which makes it difficult to compare across studies. The coping measures were based on self-reports and a variety of questionnaires were used without any golden standard. It is important to develop reliable and valid tools that assess how people cope with stressful situations and negative events. Therefore developing structured and easily scorable scales started in the 1960s  and during the 1980 and 1990s, – much research was conducted on self-reported measures of coping. Facing particularly stressful events, individuals are asked about the kind of coping behaviour(s) in which they have engaged . This research used widely divergent strategies, techniques and measures; additionally some of the scales possess a variety of psychometrically drawbacks . When examining the coping questionnaires, it is clear that substance use as a coping behaviour has virtually been ignored [13, 27, 50, 51]. The two studies concerning abuse showed that depressive symptoms were significantly associated with more drinking problems  and that improvement in functioning and well-being was associated with less alcohol consumption .
As discussed, in a critical review concerning the gap between coping theory and clinical intervention research , when using a coping checklist and thereby reducing coping to a summary score, a lot of information will be lost. The questions seem to be to general for the results to be valid and crucial aspects of timing, sequencing and appropriateness may be lost.
Coping and life events
There is a substantial and partially causal link between life-events and depression  and the occurrence of major life events signals a period of increased risk of developing a depressive episode ; several studies measured life events [17, 18, 21, 23, 24, 26, 27, 29, 34–37, 39, 43, 44]. A general problem in measuring coping in connection with life events is the time relation, as participants should recall a stressful situation and then reconstruct how they dealt with it. Firstly, there is recall bias and secondly, coping has a temporal aspect: an individual can cope before a stressful event occurs, while it is happening and afterwards . The issue of timing is complex as there presumably may be an interaction between individual vulnerability, coping, life events and the risk of developing depression. Thus it is difficult to measure the coping process given the typical brief period between a severe life event and depression. Capturing the coping process represents a challenge  and it may require a more frequent monitoring of coping than is usually done in studies.
All coping measures are based on self-reports and participants are often asked in connection with hypothetical stressors e.g. the Coping Inventory for Stressful Situations  and it is difficult to know what kind of stressors were thought of. Many scales for coping are developed to assess overall coping strategies but it reasonable that human cope differently according to the nature of the event. Linking coping measures to recent actual stressors and attempting objective assessment of the stressful life event to avoid circularity is of main importance. The procedure of semi-structured interviews is time- and labour consuming and might be a reason for the consistent use of self-reports. The lacking use of coping in clinical assessment and treatment may be due to the rather confusing divergent coping scales. It can be rather meaningless to detect coping not knowing what kind of stressor the coping process relates to and the influence of personality traits cannot be ignored . For advancing research and clinical focus on coping there is a need of developing an integrated semi-structured interview detecting personality traits, life events and coping together. Beside, a specific development of coping schedules capable of identifying prodomal symptoms of bipolar episodes as described by Wong et al.  would be of clinical use.
Coping and personality
Coping is closely related to personality and personality can affect coping measures and in coping as well as in personality research there is a distinction between trait and state variables. In the concept of coping responses , coping is seen as a response to specific stressful situations rather than a stable feature of personality. Another approach emphasizes the method of coping; whether a response entails primal cognitive or behavioural efforts . One study  showed that less-adaptive coping strategies (emotion-oriented coping) were associated with neuroticism and depression, whereas the reverse association was found regarding adaptive coping strategies (task-orientated coping). These findings are replicated in studies of the general population [59, 60]. Finally, a study  from Japan found that task-oriented and avoidance coping were related to extraversion and that emotion-oriented coping was related to neuroticism. Personality traits are important in the assessment of coping and it is advisable to measure these traits when dealing with coping measures; however, only three studies have done so [26, 41, 44].
Coping and Gender
In most of the present studies more women were included reflecting the gender differences in the prevalence of depressive disorder. In some studies gender differences were found and the general tendency was that men tend to distract themselves using active coping strategies, whereas women use strategies involving expressing emotion [16, 21, 25]. Other studies found no gender differences [22, 30, 33]; however, most studies did not take gender into consideration in the analyses. According to the hypothesis of Nolen-Hoeksema  the increased vulnerability of women to developing depression is related to gender differences in coping; men's response to their dysphoria is more behavioural and dampens their depressive episodes, whereas women's response to their dysphoria is more ruminative and amplifies them. Accordable to a review  of gender differences in depression, it is possible that men tend to distract themselves from their mood by engaging in physical or instrumental activities, whereas women are less active and ruminate over the possible causes and implications of their depression. These hypotheses are compatible with findings from other studies [64–66] the latter study involving data covering representative population samples from six European countries. Conversely, an older prospective one-year study  of 100 healthy community-residing men and women, in which participants were interviewed seven times at four-week intervals, found no gender differences in emotion-focused coping. Another study  of couples that recently had experienced at least one threatening life event that was potentially depressonigenic for both showed that women had a greater risk than men of depressive episodes following the life event. The greater risk was restricted to episodes that followed events involving children, housing or reproductive problems. Women's greater risk was only present among those couples for whom there were clear gender differences in associated roles.
Coping and age
Age differs between the studies but most studies had a broader age range. How age influences the stress and coping process is not clear: The Normative Aging Study , a longitudinal study examined stress, appraisal and coping in three groups' middle-aged, young-old and old-old men. The study followed 2280 men for more than 30 years. A significant overall effect of age on coping strategies: instrumental action, cognitive reframing, social support and interpersonal hostile strategies were found and all coping strategies showed linear decrease with age. The relation between age and coping is complex and there is no clear answer as to whether persons cope better or worse as they age. In a recent study, the association between life events and onset of depression and mania was not found to change throughout life 
Coping and medical adherence
The episodic course of affective disorders presents a challenge to the clinician and the patient, in making and fulfilling a treatment plan. Effective treatment depends on medication adherence also when treating medical patients with comorbid depression. When treating affective disorder, doctors and patients have to deal with different problems: lack of insight, symptom-free intervals, residual affective symptoms and poor social support, which can complicate long-term treatment . Identification of these factors may add to increase medication adherence as seen in a study  that investigated medication adherence in 32 patients with bipolar I disorder. Consistent with the hypothesis that acceptance coping would be positively associated and denial coping negatively associated with adherence to mood-stabilizing medication, it was found that low levels of acceptance and a high level of denial undermined medication adherence.
Coping strategies could be a target for selective prevention targeting subgroups of the population whose risk of developing an affective disorder is higher than average. Further, a way to ameliorate the course in affective disorder is to help patients to identify prodomal symptoms and individual maladaptive coping strategies and try to change these, e.g. problem training as a treatment for depression [46, 73, 74] or intervention designed to improve coping. More recent literature supports the utility of individual cognitive behavioural and psycho-educational approaches, particular in enhancing medication adherence, so medication and psychotherapy are not only compatible but also synergistic  and a strong focus in psychological treatment involves structured attempts to teach patients new coping skills.
The gap between coping theory and clinical use of coping remains and the clinical relevance of coping is, though promising, still unclear. It is difficult to make a clear distinction between coping processes and symptoms. The complex interaction between life stressors, coping, personality and affective disorders need to be better understood before coping behaviour and changes in coping strategies can be included more systematically in patient treatment. Primary, there is a need to develop new valid and reliable measures combining assessment of coping, life events and personality in a semi-structured interview. Long-term high-risk studies capable of detecting coping before and after an onset of an mood disorder would provide new information of the relation between coping strategies and affective disorder.
The Theodore and Vada Stanley Medical Research Institute and the Lundbeck Foundation supported the study.
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