Sleep problems in cancer patients: prevalence and association with distress and pain.

BACKGROUND: Although it is increasingly recognized that cancer patients often have sleep problems, we lack data on their prevalence and associations in representative clinical populations. We aimed to determine (i) the prevalence of sleep problems amongst outpatients of a cancer centre and (ii) the association with medical variables, emotional distress and pain. METHODS: Secondary analysis of self-report and medical data on 2862 cancer centre outpatients. Sleep problems were identified using the sleep item from the Patient Health Questionnaire-9: 'Over the last two weeks, how often have you been bothered by trouble falling or staying asleep or sleeping too much?' scored on a four-point frequency scale. Emotional distress was measured using the Hospital Anxiety and Depression Scale and pain using the subscale of the European Organisation for Research and Treatment of Cancer Quality of Life Core 30 questionnaire. Medical data were obtained from the cancer centre clinical database. RESULTS: Sleep problems (bothered more than half the days during the previous 2 weeks) were reported by 30.2% (865/2862, 95% CI = 28.5 to 31.9) of the patients. They were common in both patients with active cancer (34.5%) and in cancer survivors (28.0%). There was only a modest association with cancer site and treatment status, but there was a strong association with pain (odds ratio = 2.7, 95% CI = 2.2 to 3.4) and emotional distress (odds ratio = 4.5, 95% CI = 3.7 to 5.6). CONCLUSIONS: Sleep problems are common in cancer outpatients and are strongly associated with pain and emotional distress. A combined approach to the management of sleep, pain and emotional distress is indicated. Copyright © 2011 John Wiley & Sons, Ltd.

The problems reported by cancer patients with major depression.

OBJECTIVE: To describe the problems reported by people with cancer and major depressive disorder as elicited before starting problem-solving therapy (PST). METHODS: Ninety-eight outpatients, with a variety of cancers who met criteria for major depression, received PST as part of a system of treatment called 'Depression Care for People with Cancer' within a randomized trial. During the first session of PST, each patient was asked to provide an exhaustive list of problems defined as 'anything that was bothering them'. A coding system, based on thematic content, was developed to categorize the problems listed. Each problem was then coded by two raters independently (κ=0.81). The resulting categories were organized into larger conceptual domains using a card-sorting task. RESULTS: Thirty-six problem categories were generated which were in turn organized into 11 larger conceptual domains. Patients reported problems in a mean of 9.2 different categories (range 3-21) and 5.7 domains (range 2-9). The most common problem categories were 'concerns about other people's well-being' (65%), 'problems in interpersonal relations' (61%), 'loss of interest' (56%), 'low mood' (55%), and 'cancer recurrence or relapse' (54%). CONCLUSIONS: People with cancer and major depression report a wide variety of problems that include, but go beyond concerns about, both cancer and depression. The large number of problems related to concerns about other people's well-being and difficulties in interpersonal relationships, stresses the importance of these topics to patients and should be given more weight in the assessment and management of depressed cancer patients.

Monitoring symptoms at home: what methods would cancer patients be comfortable using?

PURPOSE: This study aimed to determine which methods of remote symptom assessment cancer outpatients would be comfortable using, including those involving information technology, and whether this varied with age and gender. METHODS: A questionnaire survey of 477 outpatients attending the Edinburgh Cancer Centre in Edinburgh, UK. RESULTS: Most patients reported that they would not feel comfortable using methods involving technology such as a secure website, email, mobile phone text message, or a computer voice on the telephone but that they would be more comfortable using more traditional methods such as a paper questionnaire, speaking to a nurse on the telephone, or giving information in person. CONCLUSIONS: The uptake of new, potentially cost-effective technology-based methods of monitoring patients' symptoms at home might be limited by patients' initial discomfort with the idea of using them. It will be important to develop methods of addressing this potential barrier (such as detailed explanation and supervised practice) if these methods are to be successfully implemented.

Functional (Psychogenic) Cognitive Disorders: A Perspective from the Neurology Clinic.

Cognitive symptoms such as poor memory and concentration represent a common cause of morbidity among patients presenting to general practitioners and may result in referral for a neurological opinion. In many cases, these symptoms do not relate to an underlying neurological disease or dementia. In this article we present a personal perspective on the differential diagnosis of cognitive symptoms in the neurology clinic, especially as this applies to patients who seek advice about memory problems but have no neurological disease process. These overlapping categories include the following 'functional' categories: 1) cognitive symptoms as part of anxiety or depression; 2) "normal" cognitive symptoms that become the focus of attention; 3) isolated functional cognitive disorder in which symptoms are outwith 'normal' but not explained by anxiety; 4) health anxiety about dementia; 5) cognitive symptoms as part of another functional disorder; and 6) retrograde dissociative (psychogenic) amnesia. Other 'non-dementia' diagnoses to consider in addition are 1) cognitive symptoms secondary to prescribed medication or substance misuse; 2) diseases other than dementia causing cognitive disorders; 3) patients who appear to have functional cognitive symptoms but then go on to develop dementia/another neurological disease; and finally 4) exaggeration/malingering. We discuss previous attempts to classify the problem of functional cognitive symptoms, the importance of making a positive diagnosis for the patient, and the need for large cohort studies to better define and manage this large group of patients.

Pain in patients attending a specialist cancer service: prevalence and association with emotional distress.

CONTEXT: We know little about how many outpatients of a modern cancer center suffer from clinically significant unrelieved pain and the characteristics of these patients to guide better care. OBJECTIVES: To determine the prevalence of clinically significant pain (CSP) in the outpatients of a regional cancer center and the association with distress and other variables. METHODS: A secondary analysis of cross-sectional, self-reported and clinical data from 2768 patients reattending selected clinics of a regional National Health Service cancer center in the U.K. Pain was measured using the pain severity scale of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire, emotional distress was measured by the Hospital Anxiety and Depression Scale, and demographic and clinical data were taken from medical records. RESULTS: Fifty-four percent (95% confidence interval [CI] 52-56) of patients reported pain at least "a little" in the previous week and 18% (95% CI 17-20) at least "quite a bit" (CSP). The strongest independent associations of CSP were active disease (odds ratio [OR] 1.95, 95% CI 1.5-2.5) and emotional distress (OR 4.8, 95% CI 4-6). CONCLUSION: CSP is surprisingly common in outpatients of specialist cancer services, and it is strongly and independently associated with emotional distress. Better symptom management should consider pain and distress together.

Screening for major depression in cancer outpatients: the diagnostic accuracy of the 9-item patient health questionnaire.

BACKGROUND: Systematic screening for depression has been recommended for patients who have medical conditions like cancer. The 9-item Patient Health Questionnaire (PHQ-9) is becoming widely used, but its diagnostic accuracy has not yet been tested in a cancer patient population. In this article, the authors report on the performance of the PHQ-9 as a screening instrument for major depressive disorder (MDD) in patients with cancer. METHODS: Data obtained from a depression screening service for patients who were attending clinics of a Regional Cancer Centre in Edinburgh, United Kingdom were used. Patients had completed both the PHQ-9 and a 2-stage procedure to identify cases of MDD. Performance of the PHQ-9 in identifying cases of MDD was determined using receiver operating characteristic (ROC) analysis. RESULTS: Data were available on 4264 patients. When scored as a continuous measure, the PHQ-9 performed well with an area under the ROC curve of 0.94 (95% confidence interval [CI], 0.93-0.95). A cutoff score of ≥ 8 provided a sensitivity of 93% (95% CI, 89%-95%), a specificity of 81% (95% CI, 80%-82%), a positive predictive value (PPV) of 25%, and a negative predictive value (NPV) of 99% and could be considered optimum in a screening context. The PHQ-9 did not perform as well when it was scored using an algorithm with a sensitivity of 56% (95% CI, 55%-57%), a specificity of 96% (95% CI, 95%-97%), a PPV of 52%, and an NPV of 97%. CONCLUSIONS: The PHQ-9 scored as a continuous measure with a cutoff score of ≥ 8 performed well in identifying MDD in cancer patients and should be considered as a screening instrument in this population.

Measuring improvement in depression in cancer patients: a 50% drop on the self-rated SCL-20 compared with a diagnostic interview.

OBJECTIVE: To determine the validity of a 50% drop in the 20-item Symptom Checklist Depression Scale (SCL-20) score against the "gold standard" of no longer meeting criteria for major depression as assessed using a diagnostic interview in an outpatient cancer population and also to examine the validity of other potential cut-offs (i.e., percentage drops). MATERIALS AND METHODS: Secondary analysis of data from a randomized trial which compared collaborative care with usual care for cancer patients with major depression. A total of 194 trial participants who had both SCL-20 scores and depression diagnoses on the Structured Clinical Interview for DSM-IV at both baseline and at 12-week outcome formed the analyzed sample. RESULTS: A 50% reduction in the SCL-20 score from baseline to 12 weeks correctly identified the patients who no longer met criteria for major depression in 153 (78.9%) of 194 (95% CI 73.1% to 84.6%) cases. Most of those misclassified had not achieved a 50% reduction in SCL-20 score despite no longer meeting criteria for major depression. Examination of the performance of percentage drops other than 50% on the SCL-20 using a receiver operating characteristics (ROC) curve and histogram of misclassification suggested that the 50% drop was best if both a low overall misclassification rate and the minimizing of false positives of improvement were required. CONCLUSIONS: A 50% reduction in the SCL-20 score performs well as a conservative measure of change in depression status in cancer patients.

Screening for suicidality in cancer patients using Item 9 of the nine-item patient health questionnaire; does the item score predict who requires further assessment?

OBJECTIVE: To determine whether a higher score on Item 9 of the Patient Health Questionnaire-9 (range zero to three) was more likely to indicate suicidality as determined at subsequent clinical interview in cancer outpatients. METHOD: Analysis of anonymized data (with ethical approval) obtained from the routine clinical administration of self-report questionnaires and telephone interviews to patients attending a cancer centre in the UK. RESULTS: Complete data were available on 330 patients. Those with higher scores on the item were more likely to be suicidal at interview. However, a substantial number of those (54/235; 23%) who scored only one on the item were also found to be suicidal. CONCLUSIONS: A higher score on Item 9 of the PHQ-9 indicates a greater likelihood that the patient is suicidal. However, even patients who score only 1 may be suicidal and consequently also require further assessment.

Screening for psychological distress in palliative care: performance of touch screen questionnaires compared with semistructured psychiatric interview.

This study examined the criterion validity of computer-based screening tools (Distress Thermometer [DT], Brief Symptom Inventory-18 [BSI-18], and General Health Questionnaire-12 [GHQ-12]) in detecting any form of psychological distress in palliative care patients, compared with a semistructured psychiatric interview, Schedules for Clinical Assessment in Neuropsychiatry (SCAN). Patients aged 18 years or older referred to specialist palliative care services in Leeds completed the computer-based screening tools before SCAN interview by psychiatrists who were blind to screening results. SCAN interviews generated International Classification of Diseases, Tenth Revision (ICD-10) psychiatric diagnoses. Receiver operating characteristic (ROC) analysis compared the performance of screening tools with SCAN interview in identifying cases of distress. Sensitivity, specificity, positive and negative predictive values, and area under the curve (AUC) were calculated. Of the 226 eligible patients during the study period, 174 consented and 150 completed the study. Fifty-one (34%) patients satisfied ICD-10 criteria for a psychiatric diagnosis, adjustment disorder being the most common one (22%). On ROC analysis, DT, BSI-18, and GHQ-12 showed an AUC of 0.729, 0.729, and 0.755, respectively. At optimum cutoff values, sensitivity and specificity were 0.77 and 0.59 for DT, 0.78 and 0.62 for BSI-18, and 0.77 and 0.61 for GHQ-12, respectively. These data indicate that more than one-third of palliative care patients experience psychological distress. The three touch screen-based screening tools performed equally well in identifying distress compared with a psychiatric interview. The single-item DT is as good as longer screening tools, with an optimum cutoff of 5 in this population. Depressive disorders may be rarer in this population than commonly thought, in comparison to adjustment disorders.

Screening for psychological distress in palliative care: a systematic review.

Psychological distress is common in the terminally ill. It is often underdetected and undertreated and has significant impact on the individual and family. There is a growing consensus on a broader concept of psychological suffering conceptualized as "distress" in the palliative care setting. Psychological screening programs play an important role in improving detection and management of distress. National and international guidelines recommend routine screening. This systematic review summarizes the evidence for screening for psychological distress in a palliative care setting. The review includes studies that compare screening questionnaires against a gold standard criterion of semistructured or structured psychiatric interview. Eight studies were identified which examined the performance of 10 screening questionnaires, ranging from single items to multidimensional questionnaires with up to 33 items. The performances of these questionnaires are described in terms of their sensitivity, specificity, and positive and negative predictive values. There are very few studies that examine the validity of questionnaires against credible criteria such as psychiatric interview and most studies have so far focused on depression. Unidimensional scales appear to perform equally well compared to the longer versions. This review summarizes the evidence, the quality of this evidence, and future challenges to improve identification and management of distress in palliative care.