Diagnostic validity of assessment scales for depression in patients with schizophrenia

The aim of this study was to examine the diagnostic validity of four commonly used assessment scales for depression in schizophrenia. The study population consisted of 84 inpatients meeting the DSM-IV criteria for schizophrenia. Depression in the study subjects was defined by the DSM-IV criteria for major depressive episode. The Positive and Negative Syndrome Scale (PANSS) and the Simpson-Angus Rating Scale (SARS) were used to differentiate depression from the negative and extrapyramidal symptom-related depressive phenomena in schizophrenia. The following four depression scales were assessed for their diagnostic validity as measures of depressive disorder in schizophrenia: the Calgary Depression Scale for Schizophrenia (CDSS), the Beck Depression Inventory (BDI), the Hamilton Rating Scale for Depression (HAM-D), and the depression subscale of the PANSS (PANSS-D). Of 84 patients with schizophrenia, 32 were diagnosed as having comorbid depressive disorder. The areas under the Receiver Operating Characteristic (ROC) curves of the CDSS, HAM-D, PANSS-D, and BDI were 0.94, 0.89, 0.90, and 0.81, respectively. The area under the ROC curve of the CDSS was significantly greater than that of the BDI and tended to be more favorable than those for the HAM-D and the PANSS-D. Our study suggests that the CDSS may provide the best assessment for depression in patients with schizophrenia.     

流产后抑郁障碍调查

目的：主要调查香港地区中国妇女流产后精神疾病的患病率。方法：对282名妇女在流产后6周用30项一般健康问卷（GHQ）、Edinburgh产后抑郁量表（EPDS）和Beck抑郁量表（BDI）进行评定,以DSM－Ⅲ-R定式检查（SCID）建立诊断,检验GHQ、EPDS与DSM－Ⅲ-R诊断间效标效度,以及和BDI间的平行效度。结果：29名妇女（10．3％）符合DSM-Ⅳ-R重症抑郁诊断,GHQ、EPDS具有良好的效标效度和平行效度。结论：中国香港妇女流产后精神障碍患病率降低,EPDS、GHQ适合用于综合性医院中流产后抑郁障碍的筛查。     

Screening for anxiety and depression in dialysis patients: comparison of the Hospital Anxiety and Depression Scale and the Beck Depression Inventory

ObjectiveAlthough anxiety and depression are frequent comorbid disorders in dialysis patients, they remain underrecognized and often untreated. The aim of the study was to evaluate the Hospital Anxiety and Depression Scale (HADS), the Beck Depression Inventory (BDI) and a truncated version of the BDI, the Cognitive Depression Index (CDI), as screening tools for anxiety and depression in dialysis patients.MethodsA total of 109 participants (69.7% males), from four dialysis centers, completed the self-report symptom scales HADS and BDI. Depression and anxiety disorders were diagnosed with the Structured Clinical Interview for DSM-IV Axis I disorders (SCID-I). The sensitivity, specificity, positive and negative predictive value, overall agreement, kappa and receiver operating characteristic (ROC) curves were assessed.ResultsDepressive disorders were found in 22% of the patients based on the SCID-I, while anxiety disorders occurred in 17%. The optimal screening cut-off score for depression was ≥7 for the HADS depression subscale (HADS-D), ≥14 for the HADS-total, ≥11 for the CDI and ≥17 for the BDI. The optimal screening cut-off for anxiety was ≥6 for the HADS anxiety subscale (HADS-A) and ≥14 for the HADS-total. At cut-offs commonly used in clinical practice for depression screening (HADS-D: 8; BDI: 16), the BDI performed slightly better than HADS-D.ConclusionThe BDI, CDI and HADS demonstrated acceptable performance as screening tools for depression, as did the HADS-A for anxiety, in our sample of dialysis patients. The recommended cut-off scores for each instrument were: ≥17 for BDI, ≥11 for CDI, ≥7 for HADS depression subscale, ≥6 for HADS anxiety subscale and ≥14 for HADS total. The CDI did not perform better than the BDI in our study. Lower cut-off for the HADS-A than recommended in medically ill patients may be considered when screening for anxiety in dialysis patients.     

Prevalence and risk factors for depression in a rural setting. Results from the North Wales arm of the ODIN project

BACKGROUND: Depressive disorders are common, and result in high individual and societal costs. The majority of research assessing depression has occurred in urban areas. There is a paucity of research examining the prevalence of and risk factors for depression in rural general practice. AIM: The aim of this study was to examine the prevalence of and risk factors for depression in a rural area of North Wales in the context of a large multi-centre European study. METHOD: One thousand nine hundred and ninety-nine people randomly selected from a health authority database underwent a two-phase screening method to identify depression. The first phase involved patients completing a self-rating postal questionnaire (the Beck Depression Inventory or BDI). In the second phase, those scoring above cut-off underwent detailed diagnostic interview (Schedules of Clinical Assessment in Neuropsychiatry or SCAN). The SCAN diagnostic interview can generate either DSM-IV or ICD-10 diagnoses; the DSM-IV classification system was used here. RESULTS: One thousand two hundred and thirty-nine (63 %) people responded to the initial screening questionnaire. The prevalence rate for all DSM-IV depressive disorders was calculated to be 6.1 % (95 % CI 4.1, 9.0) whereas the prevalence rate for DSM-IV major depressive disorder was 5.1 % (CI 3.37, 7.66). Multivariate analysis indicated that several variables were related to BDI caseness, including gender, employment status, social support and negative life events. CONCLUSION: Levels of reported depression are relatively low in North Wales compared to those observed in a neighbouring urban area using comparable data collection methods. A number of factors traditionally associated with increased risk from depression were predictive of scoring above cut-off on the BDI in a rural North Wales sample.     

A comparison between the Beck's Depression Inventory and the Gotland Male Depression Scale in detecting depression among men visiting a drop-in clinic in primary care

Background: Anger attacks and alcohol use may mask depressive symptoms in men. Only the Gotland Male Depression Scale (GS) includes such items. Aims: To study the usefulness of the GS and Beck Depression Inventory (BDI) in detecting depression among men in primary care. Methods: At a family doctor's drop-in clinic in Stockholm, Sweden, all men were invited into the study 2 days a week (opportunistic screening). On other days, the men who mentioned mental symptoms were invited (targeted screening). The men filled in BDI, GS and a social questionnaire. The doctor invited the men with BDI≥10 and /or GS≥13 to a repeat visit. The outcome was depression diagnosed according to DSM-IV and the severity was assessed with the Montgomery–Åsberg Depression Rating Scale. Results: 223 men were recruited, 190 by opportunistic and 33 by targeted screening. Seventeen per cent of the men reported an alcohol consumption that might put them at risk. In the opportunistic screening, 23% scored BDI≥10 and 14% scored GS≥13. The prevalence of depression in the opportunistic screening was 10.5%. The proportion of depressed men in the targeted screening was 60.6%. In total, 40 men were depressed, 63% had a mild and 35% moderate depression. The correlation between the scales was 0.80. The GS identified no additional cases. Conclusions: Clinical depression was quite common among those men who often had a high alcohol consumption, indicating an advantage for the GS when screening for depression among men. In primary care, a targeted screening procedure seems to be the most feasible method.     

Usefulness of Beck Depression Inventory (BDI) in the Korean elderly population

OBJECTIVES: This study aimed to evaluate the diagnostic validity of the Beck Depression Inventory (BDI) in the elderly and to suggest an optimal cut-off score in order to screen major depressive disorder. METHODS: The BDI and an elderly health questionnaire were administered to 2729 subjects over the age of 60 chosen by stratified random sampling in a Ansan City, South Korea. The BDI and geriatric depression scale (GDS) were examined at about a two-year interval. A reliability and validity test, a factor analysis and an ROC curve analysis were performed. RESULTS: Eighty-four subject had depression and 2645 subjects were rated as normal. The BDI showed significant positive internal consistency (r = 0.88) and test-retest reliability (r = 0.60). Convergent validity with GDS was significantly positive (r = 0.59), and an exploratory factor analysis revealed four factors. We suggest a score of 16 as the optimal cut-off point for the BDI when screening for major depression. CONCLUSION: The results of this study showed that the Korean version of the BDI is appropriate for screening for depression and 16 is the optimal cut-off score for the Korean elderly. Screening of elderly depression with BDI in the community would be valuable when comparing with younger adults and with their former BDI data which were taken when they were young.     

Comparative assessment of Yale Single Question and Beck Depression Inventory Scale in screening for depression in multiple sclerosis

OBJECTIVES: To examine if depression in multiple sclerosis (MS) can be accurately recognized using the Yale Single Question (YSQ) screen as compared with the Beck Depression Inventory (BDI), a 21-item self-report rating scale for depression. In addition, we sought to assess the sensitivity, specificity the positive predictive value (PPV) and the negative predictive value (NPV) of the YSQ. BACKGROUND: Depression associated with MS is a major contributor to morbidity. Screening for depression in patients with MS currently includes the BDI, which measures characteristic attitudes and symptoms of depression. However, in a busy outpatient clinic, the BDI might not be the most appropriate instrument, particularly if depression screening can be assessed accurately using simpler techniques that are easy to administer and consume less time. We compared the accuracy of the YSQ screen response against the BDI to screen for depression in MS patients, in an outpatient setting. METHODS: This is a comparative outcome study of two 'instruments' used for screening depression in MS patients in an academic outpatient setting. All patients were initially screened for depression by asking patients the YSQ--'Do you frequently feel sad or depressed?', followed by BDI administration. Depression was defined as a score of > or = 13 on the BDI. One hundred and twenty successive patients who presented to the MS clinic at Washington University School of Medicine and met the criteria for diagnosis of MS were screened for depression. All patients diagnosed as having MS, regardless of type, were included in the study. RESULTS: Of the 120 patients studied, a total of 49 of 120 were clinically depressed as defined by a BDI cut-off of > or = 13; 71 of 120 were not. The sensitivity of the YSQ was 32 of 49 = 65.3% with a 95% confidence interval (0.50, 0.78), specificity was 62 of 71 = 87.3% (0.77, 0.94), PPV was 32 of 41 = 78.0% (0.62, 0.89) and NPV was 62 of 79 = 78.5% (0.68, 0.87). Of the 49 patients depressed by BDI criteria, 17 responded 'no' to the YSQ, yielding a false-negative rate of 34.7% (0.22, 0.50). The Wilcoxon-Mann-Whitney test for difference in age among those on antidepressants compared with those who were not showed no statistical difference (P = 0.35). For patients on antidepressants, the mean BDI score was 16.0+/-8.9 (mean+/-SD) and 9.5+/-8.7 for those not on antidepressants. Differences in BDI scores among patients on antidepressants versus those who were not were statistically significant (P < 0.0001). Patients on antidepressants had significantly higher BDI scores. CONCLUSIONS: Our results show that the YSQ cannot replace the BDI as a screening instrument for depression in MS. The YSQ could not identify 34.7% of patients who were depressed by BDI criteria. However, as reported in a published study, BDI missed 30% of cases with early depression in MS when a cut-off of > or = 13 was used. The YSQ appears to be specific in ruling out depression when a patient is not depressed. MS is a chronic disease and since prevalence of depression varies, it is important to screen patients repeatedly over time so as not to miss the diagnosis. That BDI scores were higher among those taking antidepressants underscores the fact that this subset of patients need to be on medication, but the higher scores could also represent a sampling error since the duration of antidepressant use was not studied.     

The Edinburgh Postnatal Depression Scale: validation on a Swedish community sample

The Edinburgh Postnatal Depression Scale (EPDS) was designed to be used by community health workers to screen for postnatal depression. We report data from a population-based sample of 1655 women who completed the EPDS at 2 months and 3 months postpartum. A total of 128 women were interviewed with the Montgomery Asberg Depression Rating Scale (MADRS) and assessed according to DSM-III-R criteria for major depression. A cut-off score of 11.5 on the EPDS identified all but two women with major depression, giving it a sensitivity of 96%, a specificity of 49% and a positive predictive value of 59%. This study supports the validity of the EPDS shown in earlier studies, and indicates that the scale is a useful screening instrument for identifying postnatal depression in primary health care in Sweden.     

Postnatal psychiatric morbidity: a validation study of the GHQ-12 and the EPDS as screening tools

OBJECTIVE: To assess the validity of the 12-Item General Health Questionnaire (GHQ-12) and the Edinburgh Postnatal Depression Scale (EPDS) in screening for the most common postnatal psychiatric morbidities (mood, anxiety and adjustment disorders). METHOD: A two-phase cross-sectional study was designed. First, a sample of 1453 women visiting at 6 weeks postpartum completed the GHQ-12 and the EPDS questionnaires. Second, based upon EPDS outcomes, participants were stratified and randomly selected within each stratum for clinical evaluation [Structured Clinical Interview for DSM-IV (SCID)]. Receiver operating characteristic (ROC) analysis was used. RESULTS: The concurrent validity was satisfactory (0.80). At optimum cut-off scores, both GHQ-12 and EPDS yielded very good sensitivity (80; 85.5) and specificity (80.4; 85.3), respectively. ROC curves showed that the performance of the EPDS (AUC=0.933) is slightly superior to that of GHQ-12 (AUC=0.904). CONCLUSION: Both GHQ-12 and EPDS are valid instruments to detect postnatal depression as well as postnatal anxiety and adjustment disorders.     

The validity of the Beck Depression Inventory as a screening and diagnostic instrument for depression in patients with Parkinson's disease.

PURPOSE: To evaluate the validity of the Beck Depression Inventory (BDI) as a screening and diagnostic scale for depression in Parkinson's disease (PD). PATIENTS AND METHODS: Fifty-three nondemented patients with PD were diagnosed according to a standardized protocol consisting of the depression module of the Structured Clinical Interview for DSM axis I disorders (SCID) and the BDI. A "receiver operating characteristics" (ROC) curve was obtained and the sensitivity, specificity, positive and negative predictive values (PPV and NPV, respectively) were calculated for different cut-off points of the BDI. RESULTS: Maximum discrimination was obtained with a cut-off score of 13/14. High sensitivity and NPV were obtained with cut-off scores of 8/9 or lower; a high specificity and PPV were obtained with cut-off scores of 16/17 or higher. The area under the ROC curve was 85.67%. CONCLUSION: A single cut-off score on the BDI to distinguish nondepressed from depressed patients with PD is not feasible. If one accepts the low specificity, then the BDI can be used as a valid screening instrument for depression in PD with a cut-off of 8/9. With a cut-off score of 16/17, it can be used as a diagnostic scale, at the cost of a low sensitivity. The use of diagnostic criteria for depression remains necessary.     

Validation of the Thai Edinburgh Postnatal Depression Scale for screening postpartum depression

This study aimed to validate and determine an appropriate cut-off score on the Thai Edinburgh Postnatal Depression Scale (EPDS) as a screen for postpartum depression. A prospective cohort of postpartum women at 6-8 weeks were tested using the EPDS and clinically interviewed by psychiatrists to establish a DSM-IV diagnosis of major or minor depressions in a university hospital in Southern Thailand. Of 351 postpartum women interviewed, 38 postpartum women met the criteria for depressive disorders, major depression in four women (1%) and minor depressive disorder in 34 women (10%). The area under the curve was 0.84 (95% confidence interval 0.76-0.91). Using an EPDS cut-off sum score of 6/7, major and/or minor depression was detected with a sensitivity of 74%, specificity of 74%, positive predictive value of 26% and negative predictive value of 95%. When the cut-off score was higher, the sensitivity was lower but the specificity was higher. The Thai version of the EPDS is a valid self-report instrument and is useful in Thailand where no other screening instrument for postpartum depression is available.     

Self-assessment of DSM-IV criteria for major depression in psychiatric out- and inpatients

The Depression Self-Rating Scale (DSRS) is a self-report inventory based on the DSM-IV criteria for major depression. This study aimed to investigate diagnostic concordance of a major depressive disorder (MDD) using the DSRS and the Structured Clinical Interview for DSM-IV, axis I disorders (SCID-I). An additional aim was to investigate whether concordance could be improved by adding different cut-off scores for the Beck Depression Inventory (BDI) or the self-report version of the Montgomery-Asberg Depression Rating Scale (MADRS-S). MDD was determined by means of the SCID-I interview and the DSRS in 83 psychiatric in- and outpatients. Depressive severity was assessed using the BDI and the MADRS-S. A DSRS-version including the A- and C-criteria for an MDD had a sensitivity and a specificity for an expert-rated diagnosis of 86% and 75%, respectively. By using cut-off scores for the BDI or the MADRS-S, specificity could be raised to 85% without loss of sensitivity. The DSRS appears to be a useful instrument in the diagnostic process involving MDD, particularly when used in combination with the BDI or the MADRS-S. The DSRS is thought to be of value in psychiatric outpatient departments, where treatment of patients is often delegated to paramedical staff or nurses. The scale might also be used as an independent diagnostic tool in epidemiological studies in order to achieve an estimate of the prevalence of MDD in different population settings.     

An international study exploring levels of postpartum depressive symptomatology

OBJECTIVE: Differences in postpartum depressive symptomatology (PPDS) among an international sample of 892 women from nine countries representing five continents were explored. METHOD: Edinburgh Postnatal Depression Scale (EPDS) and Beck Depression Inventory (BDI) were used to assess PPDS among a convenience sample that completed the two questionnaires twice, yielding a total of four sets of scores per subject. Women sampled were primiparae with no obstetrical complications, and had a healthy baby. Depression history and therapy were ruled out as exclusion criteria. RESULTS: Mean scores for EPDS and BDI varied across sites at both time points (P value<.001). European and Australian women had the lowest levels of PPDS, USA women fell at the midpoint, and women from Asia and South America had the highest depressive symptom scores. The moderate concordance between the EPDS and BDI suggested that the measures have complementary uses for screening and assessment. CONCLUSION: Utility of EPDS and BDI for yielding profiles of postpartum women's depressive symptomatology was demonstrated. Further research to validate depressive symptom measures with diverse international populations is indicated.     

Screening for depression in people with epilepsy: Comparative study among Neurological Disorders Depression Inventory for Epilepsy (NDDI-E), Hospital Anxiety and Depression Scale Depression Subscale (HADS-D), and Beck Depression Inventory (BDI)

PurposeWe aimed to assess and compare the psychometric properties of the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E), Hospital Anxiety and Depression Scale Depression Subscale (HADS-D), and Beck Depression Inventory (BDI) as screening instruments for depression and suicidality in people with epilepsy.MethodsOne hundred twenty-six people (54% women) diagnosed with epilepsy were recruited and evaluated on their sociodemographic and clinical features. Depression and suicide risk were assessed with a structured psychiatric interview, the Mini International Neuropsychiatric Interview (MINI-Plus), and the performance of NDDI-E, HADS-D, and BDI was evaluated.ResultsThe sensitivity and specificity of BDI for the diagnosis of depression was around 90%; HADS-D and NDDI-E have sensitivity higher than 80%, and specificity was greater than 75%. For identifying suicide risk, the NDDI-E sensitivity was 92.9%, and HADS-D sensitivity was 85.7%, and a reasonable specificity (68%) was observed for both instruments. All instruments showed a negative predictive value of over 90%. Comparisons of the areas under the ROC curve for these instruments were not significantly different regarding depression or moderate/severe risk of suicide.ConclusionAll three instruments evaluated have clinical utility in the screening of depression in people with epilepsy. Both NDDI-E and HADS-D are brief efficient screening instruments to identify depression in people with epilepsy. The BDI is a more robust instrument, but it takes longer to apply, which hampers its use by busy clinicians and by people with cognitive impairment.     

A systematic review of studies validating the Edinburgh Postnatal Depression Scale in antepartum and postpartum women

Objective: The Edinburgh Postnatal Depression Scale (EPDS) is the most widely used screening tool for postpartum depression (PPD). We systematically reviewed the published evidence on its validity in detecting PPD and antepartum depression (APD) up to July 2008. Method: Systematic review of validation studies of the EPDS included 1987–2008. Cut‐off points of 9/10 for possible PPD, 12/13 for probable PPD and 14/15 for APD were used. Results: Thirty‐seven studies met the inclusion criteria. Sensitivity and specificity of cut‐off points showed marked heterogeneity between different studies. Sensitivity results ranged from 34 to 100% and specificity from 44 to 100%. Positive likelihood ratios ranged from 1.61 to 78. Conclusion: Heterogeneity among study findings may be due to differences in study methodology, language and diagnostic interview/criteria used. Therefore, the results of different studies may not be directly comparable and the EPDS may not be an equally valid screening tool across all settings and contexts.     

A study of the Edinburgh Postnatal Depression Scale (EPDS) on 859 mothers: detection of mothers at risk for postpartum depression

The postpartum is a high-risk period for the occurrence of anxious and depressive episodes. Indeed, during the first few days after delivery, mothers can present postpartum blues symptomatology: fatigue, anxiety, disordered sleeping and a changing mood. Postpartum depression is characterised by a changing mood, anxiety, irritability, depression, panic and obsessional phenomena. It occurs in approximately 10 to 20% mothers. The exact prevalence depending on the criteria used for detection. The first symptoms usually appear between the fourth and sixth week postpartum. However, postpartum depression can start from the moment of birth, or may result from depression evolving continuously since pregnancy. We can add that the intensity of postpartum blues is a risk factor that can perturb maternal development. So it is important for health professionals to dispose of predictive tools. This study is a validation of the French version of the EPDS. The aims of the study were to evaluate the postpartum depression predictive value at 3 days postpartum and to determine a cut-off score for major depression. Subjects participating in this study were met in 3 obstetrical clinics in, or in the vicinity of, Toulouse. Mothers with psychological problems, under treatment for psychological problems or mothers whose babies present serious health problems were excluded from the study. The EPDS was presented to 859 mothers (mean age=30.3; SD=4.5) met at one of the clinics at 3 days postpartum (period 1). They had an EPDS mean score of 6.4 (SD=4.6); 258 (30%) mothers had an EPDS score 9. 82.6% of these mothers experienced a natural childbirth and 17.3% a caesarean section; 51.5% gave birth to their first child, 36.2% to their second child and 12.3% to their third or more. All subjects were given a second EPDS with written instructions to complete the scale during the period 4 to 6 weeks postpartum and return it for analysis (period 2). Between the 4 to 6 weeks postpartum period, 722 mothers replied again to the EPDS. 131 mothers had an EPDS score 11 (mean age=30.3; SD=4.8). They had an EPDS mean score of 13.6 (SD=3.3). Mothers with probable depression were interviewed and assessed, using the Mini (Mini Neuropsychiatric Interview, Lecrubier et al. 1997), the SIGH-D (Structured Interview Guide for the Hamilton Depression Scale) and the BDI (Beck Depression Inventory) in order to diagnose a major depressive episode. They had a HDRS mean score of 13.7 (SD=5.1) and a BDI mean score of 13.6 (SD=5). At 3 days postpartum, we observed that 258 mothers (30%) had an EPDS scores 9 and 164 mothers (19%) had an EPDS scores 11. Between 4 and 6 weeks postpartum, we observed 18.1% of postpartum depression (EPDS 11) and 16.8% (EPDS 12) of major postpartum depression. The analysis of the sensitivity and the specificity at 3 days postpartum provides a cut-off score of 9 (Sensibility: 0.88) (Specificity: 0.50) as predictive of postpartum depression, for this cut-off score, the type I error is low (5.8%) but the type II error is more higher (18.9%). The analysis of the sensitivity and the specificity between 4 and 6 weeks postpartum provides a cut-off score of 12 (Sensibility: 0.91) (Sensibility: 0.74) for the detection of major postpartum depression. Factor analysis shows at 3 days postpartum that the internal structure of the scale is composed of two subscales. The first factor F1 "anxiety" accounts 28% of the variance and the second factor F2 "depression" accounts 20% of the variance. Between 4 and 6 weeks postpartum, factor analysis suggests an unidimensional model in the evaluation of postpartum depression which is better than a two factor model. This factor accounts 40% of the variance. The scale has a good predictive value, and we can observe a significant correlation with the EPDS periods 1 and 2 (r=0.56; p<0.05). This result shows that the depressive mothers mood intensity predicts a future depressive risk. Furthermore, correlations between EPDS and BDI (r=0.68; p<0.05) and EPDS and HDRS (r=0.67; p<0.05) show a good convergent validity. The reliability study confirms the good internal consistency of the EPDS, at 3 days postpartum and in the postpartum depression -symptomatology evaluation (Cronbach's Alpha>0.80). In conclusion, this scale demonstrates good validity and is fast and easy use in obstetrical services, allowing early detection of women who risk to develop postpartum depression and, in the first week of postpartum, of mothers who suffer from a major postpartum depression. The use of the EPDS for an early screening of the risk of postnatal depression which is essential considering the consequences that postnatal depression can have on the development of the infant, on the quality of the relationship within the couple and on other social relationships. Mothers at risk for postnatal depression should be controlled and surveyed by the health professionals in obstetrical clinics.     

抑郁症与焦虑障碍共病临床特征研究

目的 调查抑郁症和焦虑症障碍的共病率,以及对临床严重程度的影响.方法 采用前瞻性、多中心、队列研究.入组对象符合美国精神障碍诊断与统计手册(第4版)抑郁症的诊断标准, 采用17项汉密尔顿抑郁量表(HAMD)和焦虑量表(HAMA),社会功能缺陷筛选量表(SSDS)和临床大体量表(CGI)评估.观察流行病学资料,焦虑和抑郁症状群、自杀状况.用情感性障碍和精神分裂症检查提纲中有关焦虑障碍的诊断清单评定患者合并的焦虑障碍.结果 共入组508例患者,首次抑郁发作为269例(53.0%),294例(57.9%)有过自杀观念,55例(10.8%)曾有自杀行为.45例(8.9%)伴精神病性症状.HAMD量表总分平均为(32.6±7.7)分;HAMA量表平均为(21.0±7.3)分,其中78.5%患者大于14分.抑郁症患者焦虑障碍的共病发生率为68.9%(350例),16.7%共病多种焦虑障碍.焦虑障碍种类分布以广泛性焦虑障碍为主,为56.1%.焦虑对抑郁症的临床严重程度有显著统计学意义,但自杀观念和自杀行为在共病与非共病之间未见统计学意义.36.0%患者同时伴有躯体疾病.结论 抑郁症与焦虑共病在临床上是常见的现象,合并的焦虑障碍以广泛性焦虑障碍为主,1/3的患者合并躯体疾病,应引起临床医生重视.     

Screening for depression in nursing home palliative care patients

The purpose of the this study was to evaluate the existing tools for assessing depression in nursing home patients referred to palliative care services. The patients referred to palliative care were assessed for depression by a geriatric fellow and a psychiatrist (gold standard). The questions asked by the fellow were derived from the existing validated screening scales and diagnostic tools. The psychiatrist's assessment had a strong agreement with the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV; kappa = 0.400) and Geriatric Depression Scale (GDS; kappa = 0.462) and least agreement with the Cornell Scale for Depression in Dementia (CDS). However, depression in the most severe dementia patients (Mini-Mental State Examination = 0) was able to be assessed only by the CDS. Thus, although items from the DSM-IV and GDS may be used to ascertain depression in geriatric patients, to date there is no scale valid and reliable enough to effectively ascertain depression in the most severely demented patients.     

Reliabilität und Validität des revidierten Beck-Depressionsinventars (BDI-II)

BACKGROUND : The Beck Depression Inventory (BDI) underwent revision in 1996 (BDI-II) with the goal of addressing DSM-IV depression criteria. The present study assessed psychometric properties of the German version of the BDI-II. PATIENTS AND METHODS: The BDI-II was translated into German and evaluated in a series of studies with clinical and nonclinical samples. RESULTS: The content validity of the BDI-II has improved by following DSM-IV symptom criteria. Internal consistency was satisfactorily high (alpha>or=0.84), and retest reliability exceeded r>or=0.75 in nonclinical samples. Associations with construct-related scales (depression, dysfunctional cognitive constructs) were high, while those with nonsymptomatic personality assessment (NEO-FFI) were lower. The BDI-II differentiated well between different grades of depression and was sensitive to change. CONCLUSION: The German BDI-II demonstrates good reliability and validity in clinical and nonclinical samples. It may now replace the older version of the BDI for assessing self-rated severity of depression and course of depressed symptoms under treatment.     

Posttraumatic stress disorder in a psychosomatic outpatient clinic. Gender effects, psychosocial functioning, sense of coherence, and service utilization

BACKGROUND: The lifetime prevalence of DSM-IV traumatic events and posttraumatic stress disorder (PTSD) was assessed in outpatients of a tertiary referral mental health center; differences in psychopathology and service utilization between PTSD and non-PTSD patients were evaluated. METHODS: Five hundred eighty-three outpatients (35.3 years, S.D.=12.5; 74.3% women and 25.7% men), who had been initially examined by clinically experienced medical and psychological psychotherapists, were investigated by means of standardized trauma-specific questionnaires. RESULTS: Of the patients, 61.1% reported at least one traumatic event during their lifetime, but only 34.3% of the total sample met the DSM-IV (A1 and A2) criteria. The lifetime prevalence of PTSD-positive screening was 10.1%. In 2.7% of these patients, PTSD had been diagnosed in clinical routine (ICD-10: F43.1); 6.6% of the men and 11.3% of the women met the diagnostic criteria for lifetime prevalence of PTSD. All in all, patients with PTSD had higher levels of depression and anxiety and lower levels of sense of coherence (P < .001) than did patients without PTSD (all P < .001). In addition, PTSD patients reported significantly higher rates of medical consultations (P < .001), psychotropic medication (P < .001), and psychotherapy (P < .001). CONCLUSIONS: About one third of the outpatients suffered from DSM-IV traumas, and 10%, from PTSD. However, PTSD had been diagnosed only in very few patients within the routine diagnostic procedure. These findings suggest that PTSD is frequently overlooked not only in primary but also in tertiary care settings. Finally, our study supports previous results that PTSD patients use more service utilization and are more affected by psychopathology symptoms.