Validation and utility of the patient health questionnaire in diagnosing mental disorders in 1003 general hospital Spanish inpatients

A diagnostic meta-analysis of the Patient Health Questionnaire-9 (PHQ-9) algorithm scoring method as a screen for depression

BACKGROUND

The depression module of the Patient Health Questionnaire-9 (PHQ-9) is a widely used depression screening instrument in nonpsychiatric settings. The PHQ-9 can be scored using different methods, including an algorithm based on Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria and a cut-off based on summed-item scores. The algorithm was the originally proposed scoring method to screen for depression. We summarized the diagnostic test accuracy of the PHQ-9 using the algorithm scoring method across a range of validation studies and compared the diagnostic properties of the PHQ-9 using the algorithm and summed scoring method at the proposed cut-off point of 10.

METHODS

We performed a systematic review of diagnostic accuracy studies of the PHQ-9 using the algorithm scoring method to detect major depressive disorder (MDD). We used meta-analytic methods to calculate summary sensitivity, specificity, likelihood ratios and diagnostic odds ratios for diagnosing MDD of the PHQ-9 using algorithm scoring method. In studies that reported both scoring methods (algorithm and summed-item scoring at proposed cut-off point of ≥10), we compared the diagnostic properties of the PHQ-9 using these methods.

RESULTS

We found 27 validation studies that validated the algorithm scoring method of the PHQ-9 in various settings. There was substantial heterogeneity across studies, which makes the pooled results difficult to interpret. In general, sensitivity was low whereas specificity was good. Thirteen studies reported the diagnostic properties of the PHQ-9 for both scoring methods. Pooled sensitivity for algorithm scoring method was lower while specificities were good for both scoring methods. Heterogeneity was consistently high; therefore, caution should be used when interpreting these results.

INTERPRETATION

This review shows that, if the algorithm scoring method is used, the PHQ-9 has a low sensitivity for detecting MDD. This could be due to the rating scale categories of the measure, higher specificity or other factors that warrant further research. The summed-item score method at proposed cut-off point of ≥10 has better diagnostic performance for screening purposes or where a high sensitivity is needed.

Assessment and screening of panic disorder in cancer patients: performance of the PHQ-PD

OBJECTIVE

This study's objective was to promote the transcultural adaptation of the Patient Health Questionnaire-Panic Disorder Module (PHQ-PD) for Brazilian Portuguese and to evaluate the discriminative validity of this scale in detecting PD among cancer patients.

METHODS

Adult cancer outpatients (n=400) from a specialized cancer hospital (61.50% female; 68.40% married; 56% incomplete elementary education or elementary school as the highest educational level) were assessed with the Structured Clinical Interview for DSM-IV and PHQ-PD. Using receiver operating characteristic (ROC) analyses, we determined the sensitivity and specificity values for the original PD algorithm and the PD screening.

RESULTS

The prevalence of PD in cancer patients (8.75%) was higher than the prevalence of PD for the general population. The original PD algorithm demonstrated an accuracy of 0.66, sensitivity of 0.31 and specificity of 0.94. The PD screening question in the PHQ-PD had a sensitivity of 0.66 and a specificity of 0.75 (accuracy=0.80).

CONCLUSION

PD screening questions in the PHQ-PD may be useful for identifying cancer patients with PD because of the high prevalence of PD in this population and because the questionnaire's sensitivity is greater than that of the original PD algorithm. Nevertheless, researchers and clinical practitioners should consider the original PD algorithm (five items) in the PHQ-PD when they investigate PD in patients because of the algorithm's high specificity. Individuals who are found to be positive for PD on screening should be referred for assessment and a thorough psychiatric interview that focuses on the differential diagnosis of an anxiety disorder relating to cancer.

Which instruments to support diagnosis of depression have sufficient accuracy? A systematic review

BACKGROUND

Instruments are frequently used in case finding, diagnosis and severity grading of major depression, but the evidence supporting their utility is weak.

AIM

To systematically review the specificity and sensitivity of instruments used to diagnose and grade the severity of depression.

METHODS

MEDLINE, PsycInfo, Embase and the Cochrane Library databases were searched until April 2014. Fifty studies fulfilled the inclusion criteria. Risk of bias was assessed with QUADAS. The average sensitivity and specificity of each instrument was estimated with hierarchical summary receiver operating characteristics analyses and the confidence in the estimates was evaluated using GRADE. Minimum acceptable sensitivity/specificity, with structured interview as the reference, was 80%/80% for structured interviews and 80%/70% for case-finding instruments. The minimum acceptable standard for severity measures was a correlation of 0.7 with DSM-IV classification.

RESULTS

Twenty instruments were investigated. The average sensitivity/specificity was 85%/92% for the Structured Clinical Interview for DSM-IV-Axis-I Disorders (SCID-I), 95%/84% for the Mini International Neuropsychiatric Interview (MINI), < 70%/85% for the Primary Care Evaluation of Mental Disorders (PRIME-MD), 88%/78% for the Patient Health Questionnaire-9 (PHQ-9) with a cut-off score of 10, 69%/95% for PHQ-9 as a diagnostic algorithm and 70%/83% for the Hospital Anxiety and Depression Scale (HADS) with a cut-off score of 7. The confidence in the estimates for the other instruments was very low.

CONCLUSIONS

Only the SCID-I, MINI and PHQ-9 with a cut-off score of 10 fulfilled the minimum criteria for sensitivity and specificity. The use of the PRIME-MD and HADS is not supported by current evidence.

Variations in Student Mental Health and Treatment Utilization Across US Colleges and Universities

OBJECTIVE

On US college campuses, mental health problems are highly prevalent, appear to be increasing, and are often untreated. Concerns about student mental health are well documented, but little is known about potential variations across the diversity of institutions of higher education.

PARTICIPANTS

Participants were 43,210 undergraduates at 72 campuses that participated in the Healthy Minds Study from 2007 to 2013.

METHODS

Multivariable logistic regressions focus on associations between institutional characteristics and student mental health and treatment utilization.

RESULTS

The following institutional characteristics are associated with worse mental health: doctoral-granting, public, large enrollment, nonresidential, less competitive, and lower graduation rates. Among students with apparent mental health problems, treatment utilization is higher at doctorate-granting institutions, baccalaureate colleges, institutions with small enrollments, and schools with strong residential systems.

CONCLUSIONS

Although high rates of mental health problems and low treatment utilization are major concerns at all types of institutions of higher education, substantial variation occurs across campuses.

Acculturation differences in communicating information about child mental health between Latino parents and primary care providers

Significant Latino-white disparities in youth mental health care access and quality exist yet little is known about Latino parents' communication with providers about youth mental health and the role of acculturation in influencing this communication. We estimated regression models to assess the association between time in the US and the number of psychosocial issues discussed with the medical assistant (MA) and doctor, adjusting for child and parent mental health and sociodemographics. Other proxies of acculturation were also investigated including measures of Spanish and English language proficiency and nativity. Parent's length of time in the US was positively associated with their communication of: their child's psychosocial problems with their child's MA, stress in their own life with their child's MA, and their child's school problems with their child's doctor. These differences were especially apparent for parents living in the US for >10 years. Parent-child language discordance, parent and child nativity were also significantly associated with communication of psychosocial problems. Greater provider and MA awareness of variation in resistance to communicating psychosocial issues could improve communication, and improve the prevention, diagnosis and treatment of youth mental illness.

The Spanish version of the Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR16): a psychometric analysis in a clinical sample

BACKGROUND

Psychometrically robust and easy-to-administer scales for depressive symptoms are necessary for research and clinical assessment. This is a psychometric study of the Spanish version of the Quick Inventory of Depressive Symptomatology-Self-Report (QIDS-SR16) in a clinical sample.

METHOD

One-hundred and seventy-three patients (65% women) with a psychiatric disorder including depressive symptoms were recruited. Such symptoms were assessed by means of the QIDS-SR16 and two interviewer-rated instruments: the 17-item Hamilton Depression Rating Scale (HDRS17) and the Clinical Global Impression-Severity (CGI-S) scale. Self-rated measures of health-related quality of life, subjective happiness and perceived social support were also obtained. Dimensionality, internal consistency, construct validity, criterion validity, and responsiveness to change of the QIDS-SR16 were examined.

RESULTS

Exploratory and confirmatory factor analyses replicated the original one-factor structure. The Spanish version of the QIDS-SR16 showed good to excellent internal consistency (α=0.88), convergent validity [HDRS17 (r=0.77), CGI-S (r=0.78)], and divergent validity [EuroQol-5D Visual Analogue Scale (r=-0.78), Subjective Happiness Scale (r=-0.72)]. The QIDS-SR16 was excellent in discriminating clinically significant from non-significant depressive symptomatology (area under ROC curve=0.93). It also showed a high sensitivity to treatment-related changes: patients with greater clinical improvement showed a greater decrease in QIDS-SR16 scores (p<0.001).

LIMITATIONS

The study was conducted in a single center, which may limit the generalizability of the findings.

CONCLUSIONS

The Spanish version of the QIDS-SR16 retains the soundness of metric characteristics of the original version which makes the scale an invaluable instrument to assess depressive symptoms.

Evaluation of a group cognitive-behavioral dementia caregiver intervention in Latin America

Research has identified unique cultural factors contributing to dementia caregiving in Latin America but very few caregiver interventions have been systematically piloted and evaluated in this region. The purpose of this study was to examine the effectiveness of a group cognitive-behavioral intervention in improving the mental health of dementia caregivers from Cali, Colombia. Sixty-nine caregivers of individuals with dementia were randomly assigned to the cognitive-behavioral intervention or an educational control condition, both spanning 8 weeks. Compared to controls, the treatment group showed higher satisfaction with life and lower depression and burden over the posttest and 3-month follow-ups although there was no effect of the condition on participants' stress levels.

The relationship between physical and mental health variables in individuals with spinal cord injury from Latin America

BACKGROUND

Previous research has examined the health-related quality of life (HRQOL) and mental health of persons with spinal cord injury (SCI), but the majority of the research has taken place in the United States, Western Europe, and other developed countries. Limited research has been conducted with persons with SCI in Latin America.

OBJECTIVE

To examine the relationship between HRQOL and mental health in persons with SCI from Neiva, Colombia.

DESIGN

Cross-sectional.

SETTING

Participants were recruited from the Foundation for the Integral Development of People with Disabilities, a nonprofit community organization for persons with disabilities.

PARTICIPANTS

Forty persons with SCI from Neiva, Colombia.

METHODS

Caregivers completed the Spanish versions of questionnaires.

MAIN OUTCOME MEASURES

Participants completed self-report measures of HRQOL (SF-36 Health Questionnaire) and mental health (Satisfaction with Life Scale, Patient Health Questionnaire-9, and State Trait Anxiety Inventory).

RESULTS

The hypothesis that higher HRQOL would be related to better mental health found robust support, as the canonical correlation between these 2 sets of variables uncovered that 50.4% of the variance was shared, such that persons with lower HRQOL had reduced mental health. Within this canonical correlation, anxiety, fatigue, and general health loaded most highly, suggesting that persons with SCI who experienced lower energy and reduced general health tended to have high anxiety. Additionally, 9 out of the 18 bivariate correlations between these 2 variable sets were statistically significant.

CONCLUSIONS

In Latin America, SCI rehabilitation services are extremely sparse and rarely include interventions that target postinjury mental health. The current study suggests that mental health issues in patients with reduced HRQOL warrant attention in SCI rehabilitation services, especially in this region.

Treatment engagement and response to CBT among Latinos with anxiety disorders in primary care

OBJECTIVE

In the current study, we compared measures of treatment outcome and engagement for Latino and non-Latino White patients receiving a cognitive behavioral therapy (CBT) program delivered in primary care.

METHOD

Participants were 18-65 years old and recruited from 17 clinics at 4 different sites to participate in a randomized controlled trial for anxiety disorders, which compared the Coordinated Anxiety Learning and Management (CALM) intervention (consisting of CBT, medication, or both) with usual care. Of those participants who were randomized to the intervention arm and selected CBT (either alone or in combination with medication), 85 were Latino and 251 were non-Latino White; the majority of the Latino participants received the CBT intervention in English (n = 77). Blinded assessments of clinical improvement and functioning were administered at baseline and at 6, 12, and 18 months after baseline. Measures of engagement, including attendance, homework adherence, understanding of CBT principles, and commitment to treatment, were assessed weekly during the CBT intervention.

RESULTS

Findings from propensity-weighted linear and logistic regression models revealed no statistically significant differences between Latinos and non-Latino Whites on symptom measures of clinical improvement and functioning at almost all time points. There were significant differences on 2 of 7 engagement outcomes, namely, number of sessions attended and patients' understanding of CBT principles.

CONCLUSIONS

These findings suggest that CBT can be an effective treatment approach for Latinos who are primarily English speaking and likely more acculturated, although continued attention should be directed toward engaging Latinos in such interventions.

The influence of TBI impairments on family caregiver mental health in Mexico

PURPOSE

This study examined the influence of five types of impairments in individuals with traumatic brain injury (TBI)-and caregiver stress due to these impairments-on the mental health of family caregivers in Guadalajara, Mexico.

METHOD

Ninety caregivers completed measures of TBI impairments and of their own mental health. The majority were female (92.20%) with a mean age of 47.12 years (SD = 12.67). Caregivers dedicated a median of 50 hours weekly to caregiving and had spent a median of 11 months providing care.

RESULTS

Two canonical correlation analyses suggested that these two sets of variables were broadly related, such that more severe impairments in individuals with TBI and more caregiver stress due to those impairments were associated with lower caregiver mental health. Across both analyses, social impairments were most associated with increased caregiver burden. Follow-up analyses also uncovered that caregiver stress due to cognitive impairments was uniquely associated with caregiver burden and anxiety.

CONCLUSIONS

These results are the first to provide evidence that social and cognitive impairments in individuals with TBI from Latin America are the impairments most associated with caregiver mental health and highlight the need for interventions that target social and cognitive functioning.

Reducing maternal depressive symptoms through promotion of parenting in pediatric primary care

We studied associations between 2 pediatric primary care interventions promoting parental responsiveness and maternal depressive symptoms among low-income mothers. This randomized controlled trial included 2 interventions (Video Interaction Project [VIP], Building Blocks [BB]) and a control group. VIP is a relationship-based intervention, using video-recordings of mother-child dyads to reinforce interactional strengths. BB communicates with parents via parenting newsletters, learning materials, and questionnaires. At mean (SD) child age 6.9 (1.2) months, depressive symptoms were assessed with the Patient Health Questionnaire-9 (PHQ-9), parental responsiveness was assessed with StimQ-I. A total of 407 dyads were assessed. Rates of mild depressive symptoms were lower for VIP (20.6%) and BB (21.1%) than Controls (32.1%, P = .04). Moderate depressive symptoms were lower for VIP (4.0%) compared to Controls (9.7%, P = .031). Mean PHQ-9 scores differed across 3 groups (F = 3.8, P = .02): VIP mothers scored lower than controls (P = .02 by Tukey HSD). Parent-child interactions partially mediated VIP-associated reductions in depressive symptoms (indirect effect -.17, 95% confidence interval -.36, -.03).

Excess burden of depression among HIV-infected persons receiving medical care in the united states: data from the medical monitoring project and the behavioral risk factor surveillance system

Background

With increased life expectancy for HIV-infected persons, there is concern regarding comorbid depression because of its common occurrence and association with behaviors that may facilitate HIV transmission. Our objectives were to estimate the prevalence of current depression among HIV-infected persons receiving care and assess the burden of major depression, relative to that in the general population.

Methods and Findings

We used data from the Medical Monitoring Project (MMP) and the Behavioral Risk Factors Surveillance System (BRFSS). The eight-item Patient Health Questionnaire was used to identify depression. To assess the burden of major depression among HIV-infected persons receiving care, we compared the prevalence of current major depression between the MMP and BRFSS populations using stratified analyses that simultaneously controlled for gender and, in turn, each of the potentially confounding demographic factors of age, race/ethnicity, education, and income. Each unadjusted comparison was summarized as a prevalence ratio (PR), and each of the adjusted comparisons was summarized as a standardized prevalence ratio (SPR). Among HIV-infected persons receiving care, the prevalence of a current episode of major depression and other depression, respectively, was 12.4% (95% CI: 11.2, 13.7) and 13.2% (95% CI: 12.0%, 14.4%). Overall, the PR comparing the prevalence of current major depression between HIV-infected persons receiving care and the general population was 3.1. When controlling for gender and each of the factors age, race/ethnicity, and education, the SPR (3.3, 3.0, and 2.9, respectively) was similar to the PR. However, when controlling for gender and annual household income, the SPR decreased to 1.5.

Conclusions

Depression remains a common comorbidity among HIV-infected persons. The overall excess burden among HIV-infected persons receiving care is about three-times that among the general population and is associated with differences in annual household income between the two populations. Relevant efforts are needed to reduce this burden.

Linking family dynamics and the mental health of Colombian dementia caregivers

This cross-sectional, quantitative, self-report study examined the relationship between family dynamics (cohesion, flexibility, pathology/ functioning, communication, family satisfaction, and empathy) and mental health (depression, burden, stress, and satisfaction with life [SWL]) in 90 dementia caregivers from Colombia. Hierarchical multiple regressions controlling for caregiver demographics found that family dynamics were significantly associated with caregiver depression, stress, and SWL and marginally associated with burden. Within these regressions, empathy was uniquely associated with stress; flexibility with depression and marginally with SWL; and family communication marginally with burden and stress. Nearly all family dynamic variables were bivariately associated with caregiver mental health variables, such that caregivers had stronger mental health when their family dynamics were healthy. Family-systems interventions in global regions with high levels of familism like that in the current study may improve family empathy, flexibility, and communication, thereby producing better caregiver mental health and better informal care for people with dementia.

The Validity and Reliability of the Sinhala Translation of the Patient Health Questionnaire (PHQ-9) and PHQ-2 Screener

The Patient Health Questionnaire (PHQ-9) was adapted and translated into Sinhala. Sample consisted of 75 participants diagnosed with MDD according to DSM-IV criteria and 75 gender matched controls. Concurrent validity was assessed by correlating total score of PHQ-9 with that of Centre for Epidemiological Studies Depression Scale (CESD). The Structured Clinical Interview for DSM-IV (SCID-II) conducted by a psychiatrist was the gold standard. Mean age of the sample was 33.0 years. There were 91 females (60.7%). There was significant difference in the mean PHQ-9 scores between cases (14.71) and controls (2.55) (P < 0.001). The specificity of the categorical algorithm was 0.97; the sensitivity was 0.58. Receiver operating characteristic (ROC) analysis found that cut-off score of ≥10 had sensitivity of 0.75 and specificity of 0.97. The area under the curve (AOC) was 0.93. The sensitivity of the two-item screener (PHQ-2) was 0.80 and the specificity was 0.97. Cronbach's alpha was 0.90. The PHQ-9 is a valid and reliable instrument for diagnosing MDD in a non-Western population. The threshold algorithm is recommended for screening rather than the categorical algorithm. The PHQ-2 screener has good sensitivity and specificity and is recommended as a quick screening instrument.

High rate of suicide attempt and associated psychological traits in an isolated tribal population of North-East India

BACKGROUND

Cases of suicide documented earlier all over the world reflect the presence of suicide behavior in primitive world at a higher rate compared to general urban population. The cause of such behavior is thought to be different among tribes and mental health was rarely presumed to be associated. In India, several ethnographic narratives described instances of suicides among several tribes, but evaluation of psychological traits were lacking. The present study on Idu Mishmi is an attempt to further validate earlier report of high rate of suicides among them and to evaluate psychological traits.

METHODS

Interview and administration of Patient Health Questionnaire (PHQ) on 218 individuals comprised the data. Bi-variate analyses and linear multiple regression were done to evaluate psychological traits in suicide behavior.

RESULTS

In the Idu Mishmi Population suicide attempt (14.22%) was higher than urban population in general (0.4-4.2%) and females were at higher risk. Depression (8.26%) was comparable with earlier reports, whereas anxiety syndrome (6.42%), alcohol abuse (36.24%) and eating disorder like Binge eating (6.42%), Bulimia nervosa (1.38%) were also recorded in the population.

LIMITATIONS

Absence of psychiatry clinic and mechanism of recording suicide occurrences in remote tribal area is the basic limitation of the study.

CONCLUSION

Depression and gender turned out to be significant determinants of suicide attempt in the studied population, whereas alcohol abuse was not a significant factor.

Depressive symptoms among cancer patients in a Philippine tertiary hospital: prevalence, factors, and influence on health-related quality of life

BACKGROUND

The World Health Organization recognizes depression as one of the most burdensome diseases in the world. Among cancer patients, depression is significantly associated with shorter survival, independent of the influence of biomedical prognostic factors. Although cancer is the third leading cause of morbidity and mortality among Filipinos, little is known about depressive symptoms and their influence on health-related quality of life in this population. We assessed the prevalence of, and factors associated with, depressive symptoms and their influence on health-related quality of life in Filipino patients with cancer.

METHODS

The Patient Health Questionnaire (PHQ)-8 and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 were administered to all inpatients and outpatients, age >=18 years presenting for cancer treatment.

RESULTS

Twenty-two percent (n=53/247) were categorized as depressed, using a PHQ-8 cutoff of ≥10. Depressed patients scored lower on cognitive, emotional, role, physical, and social functioning than those who scored PHQ<10 (all P<0.001). Depression varied by disease status, performance status and marital status (all P<0.001). However, only performance status (OR [odds ratio]=2.20; 95% CI=1.60, 3.00) and disease status (OR=2.4; 95% CI=1.13, 5.22) were significantly associated with depression in the multivariable model.

CONCLUSIONS

Depression is prevalent in Filipino cancer patients. The findings provide empirical support for the development of mental health services in this understudied population. This study, the first to assess the prevalence of and factors associated with depression in Filipino cancer patients, needs further validation.

Diagnosis delay in first episodes of major depression: a study of primary care patients in Spain

BACKGROUND

Diagnosis delay may negatively influence the clinical course of major depression; however, few studies have analysed the role of environmental factors on diagnosis delay. This study was aimed to identify personal and environmental factors related to a longer delay.

METHODS

A cross-sectional observational study with 3615 primary care patients with a first diagnosis of major depression was conducted. Diagnosis delay was defined as the time between onset of symptoms and diagnosis of major depression.

RESULTS

Mean of delay was 9.89 weeks. Lower years of education, triggering stressful life events before the current episode, history of previous undiagnosed depressive episodes and somatic comorbidity were related to longer delay. Health system variables, such as urban setting, public health care setting, younger doctors and female doctors were also related to a longer delay.

LIMITATIONS

Onset of first depressive symptoms was retrospectively collected. The cross-sectional design does not allow making inferences about the temporal ordering between predictors and outcomes.

CONCLUSIONS

Both personal and environmental variables were related to diagnosis delay. Identification of these factors helps to design early diagnosis programs to ultimate reduce the morbidity associated with major depression.

Connecting family needs and TBI caregiver mental health in Mexico City, Mexico

PURPOSE

This study examined relationships between caregiver mental health and the extent to which needs were met in families of individuals with traumatic brain injury (TBI) in Mexico City, Mexico.

METHOD

Sixty-eight TBI caregivers completed Spanish versions of instruments assessing their own mental health and whether specific family needs were met.

RESULTS

Twenty-seven per cent of caregivers reported clinically significant depression levels, 40% reported below-average life satisfaction and 49% reported mild-to-severe burden. Several of the most frequently met family needs were in the emotional support domain, whereas the majority of unmet needs were in the health information domain. Family needs and caregiver mental health were significantly and highly related. When family needs were met, caregiver mental health was better. The strongest pattern of connections in multivariate analyses was between family instrumental support (assistance in the completion of daily life tasks) and caregiver burden, such that caregivers with less instrumental support had greater burden. Additional results suggested that instrumental support uniquely predicted caregiver satisfaction with life, burden and depression.

CONCLUSIONS

Interventions for TBI caregivers, especially in Latin America, should help family members determine how best to meet their health information and instrumental needs, with the former being likely to improve caregiver mental health.

Screening high-risk patients and assisting in diagnosing anxiety in primary care: the Patient Health Questionnaire evaluated

BACKGROUND

Questionnaires may help in detecting and diagnosing anxiety disorders in primary care. However, since utility of these questionnaires in target populations is rarely studied, the Patient Health Questionnaire anxiety modules (PHQ) were evaluated for use as: a) a screener in high-risk patients, and/or b) a case finder for general practitioners (GPs) to assist in diagnosing anxiety disorders.

METHODS

A cross-sectional analysis was performed in 43 primary care practices in the Netherlands. The added value of the PHQ was assessed in two samples: 1) 170 patients at risk of anxiety disorders (or developing them) according to their electronic medical records (high-risk sample); 2) 141 patients identified as a possible 'anxiety case' by a GP (GP-identified sample). All patients completed the PHQ and were interviewed using the Mini International Neuropsychiatric interview to classify DSM-IV anxiety disorders. Psychometric properties were calculated, and a logistic regression analysis was performed to assess the diagnostic value of the PHQ.

RESULTS

Using only the screening questions of the PHQ, the area under the curve was 83% in the high-risk sample. In GP-identified patients the official algorithm showed the best characteristics with an area under the curve of 77%. Positive screening questions significantly increased the odds of an anxiety disorder diagnosis in high-risk patients (odds ratio = 23.4; 95% confidence interval 6.9 to 78.8) as did a positive algorithm in GP-identified patients (odds ratio = 13.9; 95% confidence interval 3.8 to 50.6).

CONCLUSIONS

The PHQ screening questions can be used to screen for anxiety disorders in high-risk primary care patients. In GP-identified patients, the benefit of the PHQ is less evident.

Mental health communications skills training for medical assistants in pediatric primary care

Paraprofessional medical assistants (MAs) could help to promote pediatric primary care as a source of mental health services, particularly among patient populations who receive disparate mental health care. This project piloted a brief training to enhance the ability of MAs to have therapeutic encounters with Latino families who have mental health concerns in pediatric primary care. The evaluation of the pilot found that MAs were able to master most of the skills taught during the training, which improved their ability to have patient-centered encounters with families during standardized patient visits coded with the Roter Interaction Analysis System. Parents interviewed 1 and 6 months following the training were more than twice as willing as parents interviewed 1 month before the training to discuss mental health concerns with MAs, and they had better perceptions of their interactions with MAs (all p < 0.01) even after controlling for a range of patient and visit characteristics. Before training, 10.2% of parents discussed a mental health concern with the MA but not the physician; this never happened 6 months after training. This pilot provides preliminary evidence that training MAs holds potential to supplement other educational and organizational interventions aimed at improving mental health services in pediatric primary care, but further research is necessary to test this type of training in other settings and among different patient populations.

Exploring the connections between traumatic brain injury caregiver mental health and family dynamics in Mexico City, Mexico

OBJECTIVE

To examine the patterns of family dynamics that are most associated with the mental health of traumatic brain injury (TBI) caregivers from Mexico. It was hypothesized that healthier family dynamics would be associated with better caregiver mental health.

DESIGN

A cross-sectional study of self-reported data collected from TBI caregivers through the Mexican National Institute of Rehabilitation in Mexico City, Mexico, the premier public medical facility in Mexico that provides rehabilitation services to patients with various disabilities.

SETTING

One public outpatient medical and rehabilitation facility.

PARTICIPANTS

Sixty-eight caregivers of individuals with moderate-to-severe TBI from Mexico City, Mexico, were related to an individual with TBI who was ≥3 months after injury, a primary caregiver for ≥3 months, familiar with the patient's history, and without neurologic or psychiatric conditions. The average (standard deviation) age of caregivers was 50.94 ± 12.85 years), and 82% were women.

METHODS

The caregivers completed Spanish versions of instruments that assessed their own mental health and family dynamics.

MAIN OUTCOME MEASUREMENTS

Outcomes assessed included family dynamics (Family Adaptability and Cohesion Evaluation Scale-Fourth Edition; Family Communication Scale; Family Satisfaction Scale; Family Assessment Device-General Functioning; and Relationship-Focused Coping Scale), and caregiver mental health (Patient Health Questionnaire-9, Zarit Burden Interview, and Satisfaction with Life Scale).

RESULTS

Results of canonical correlation analyses suggested that caregiver mental health and family dynamics were positively related, with a large effect size. Caregivers with high family satisfaction and cohesion tended to have a low burden and high satisfaction with life. In addition, caregiver depression and burden were positively related to each other and were both inversely related to caregiver satisfaction with life.

CONCLUSIONS

TBI caregiver interventions in Latino populations would likely benefit from including programming or techniques to improve family dynamics, especially family cohesion, given the strong potentially reciprocal influence of these dynamics on caregiver mental health.

Comparing the Beck Depression Inventory-II (BDI-II) and Patient Health Questionnaire (PHQ-9) depression measures in an integrated mood disorders practice

BACKGROUND

Patient self-assessment instruments are useful in screening, tracking, and documenting the course of depressive symptoms with minimal clinician time. Two popular instruments are the Beck Depression Inventory (BDI-II) and the Patient Health Questionnaire (PHQ-9). We compared the performance of these two instruments in a mood disorders setting.

METHODS

A retrospective study of 625 patients who completed a PHQ-9 and BDI-II as part of routine clinical care (1) during initial outpatient evaluation between 2008 and 2009, and (2) on admission to an inpatient mood disorders unit between 2006 and 2009. Pearson correlation coefficients for total PHQ-9 and BDI-II scores were calculated for all patients, the outpatients, and the inpatients.

RESULTS

Overall r=0.77, indicating strong correlation, more in the outpatients (n=287, r=0.81) than the inpatients (n=338, r=0.67). Mean PHQ-9 and BDI-II scores for the outpatients were 15.1 (SD 7.4) and 27.8 (SD 14.1) corresponding to "moderately severe" and "moderate" categories respectively; for inpatients, 18.9 (SD 5.7) and 33.8 (SD 11.5) corresponding to "moderately severe" and "severe."

LIMITATIONS

Retrospective design and no monitoring of which instrument was completed first in case that influenced patient response to the second instrument

CONCLUSIONS

PHQ-9 and BDI-II scores, as continuous but not categorical variables, in a mood disorders subspeciality setting are closely correlated and essentially interchangeable. There are practical applications to our findings, as the PHQ-9 is shorter and free.

Detection, treatment, and referral of perinatal depression and anxiety by obstetrical providers

AIMS

This study aimed to assess the rates of detection, treatment, and referral of maternal depression and anxiety by obstetrical providers during pregnancy and at 6 weeks postpartum.

METHODS

A convenience sample of women receiving obstetrical care at a large urban teaching hospital (n = 491) was screened for depression and anxiety during the third trimester of pregnancy and again at 6 weeks postpartum using the Edinburgh Postnatal Depression Scale and the anxiety portions of the Patient Health Questionnaire. Participants were also asked if they thought they needed help for depression, anxiety, or stress at the two time points. Obstetrical providers were blind to screening results. Two months postdelivery, each woman's obstetrical electronic medical record (EMR) was reviewed for documentation of psychiatric symptoms, diagnoses, psychiatric treatment, and mental health referrals at the two time points. Data were analyzed using descriptive statistics.

RESULTS

Twenty-three percent of participants screened positive for an anxiety disorder or high levels of depressive symptoms or both prenatally, and 17% screened positive at 6 weeks postpartum. The majority of women who screened positive were not identified by their providers during pregnancy or postpartum. Only 15% of positively screened participants had evidence of any mental health treatment in their EMR during pregnancy, with equally low rates of referral to mental health or social services. In the postpartum period, only 25% of positively screened postpartum women received treatment, and an additional 2.5% were referred. A low proportion of women who reported they felt a need for help with depression, anxiety, or stress prenatally or postpartum received treatment or referral.

CONCLUSIONS

These findings indicate that detection, treatment, and referral of perinatal depression by obstetrical providers are seriously lacking and need to be addressed.

Predictors of waterpipe smoking among secondary school adolescents in Al Hassa, Saudi Arabia

BACKGROUND

There has been a global upsurge of waterpipe (WP) smoking over the past several years. This can be attributed at least partly to various factors like lack of knowledge regarding its health effects, social acceptability, and intensive preventive programs focusing selectively on cigarettes smoking.

PURPOSE

This study aimed to determine the prevalence and psychosocial determinants of WP smoking among secondary school adolescents in Al Hassa, Saudi Arabia, and also to assess their attitudes toward WPs smoking and knowledge regarding the related health effects.

METHODS

Cross-sectional study included 1,652 students of both genders selected by multistage proportionate sampling method. Data collection was carried out using a self-administered anonymous Arabic version of the Global Youth Tobacco Survey, modified with items dedicated to WP smoking. Items to assess participants' knowledge about the health-related hazards and attitude towards WP were added. Patient Health Questionnaire was used to screen for the presence of anxiety and depressive disorders.

RESULTS

Of the included adolescents, 358 (21.7%) were current smokers; cigarettes (46.1%), both cigarettes and WP (16.5%), and only WP (37.4%). Current WP users accounted for 193; 96.4% were males and 62.7% were ≥18 years of age. Outing, boredom, meeting friends, and family gatherings were the most frequently stated motives. WP users demonstrated a higher incidence of depressive and generalized anxiety disorders. Common assumptions regarding WP smoking included: WP smoking is less harmful than cigarettes and with no addictive property as stated by 47.8% and 65.9% of adolescents, respectively, harmful substances are purified through water filtration as believed by 59.2%, and it is more socially acceptable than cigarettes as agreed by 54.1%. Hierarchical regression analysis showed that male gender and increasing age of adolescents, WP smoking among close family and friends, and socializing motives were significant predictors for the current WP smoking state.

CONCLUSION

Social acceptability, poor knowledge of WP health-related hazards, and socio-demographics are favoring the current increasing trend of WP use among adolescents in Al Hassa, Saudi Arabia.

The Autonomic Nervous System Questionnaire and the Brief Patient Health Questionnaire as screening instruments for panic disorder in Finnish primary care

PURPOSE

As panic disorder often remains unrecognized in the health care system, some screening methods have been developed to enhance its recognition. The aim of this study was to test and compare the Autonomic Nervous System Questionnaire (ANS) and the Brief Patient Health Questionnaire (BPHQ) in primary care.

SUBJECTS AND METHODS

A total sample of 211 primary care outpatients was studied. The Structured Clinical Interview for DSM-IV was the criterion standard for the presence of panic disorder. Indices of diagnostic utility for both screening methods were calculated and compared.

RESULTS

The AUC (area under the ROC curve) was 0.885 for the ANS and 0.877 for the BPHQ. At the optimal cut-off level, the ANS had the sensitivity of 0.88 and specificity of 0.77; the BPHQ had the sensitivity of 0.79 and the specificity of 0.87. There was not any statistically significant difference between the screens.

CONCLUSIONS

Both screening methods can be recommended both for clinical practice and research use. In busy primary care practice, the BPHQ may be more useful, as it can be used together with the depression module of the BPHQ.

Cultural and social determinants of health among indigenous Mexican migrants in the United States

Despite growing numbers, indigenous Mexican migrants are relatively invisible to health practitioners who group them with nonindigenous, mestizo Mexican-origin populations. Associations between indigenous and mestizo cultural identifications with psychosocial characteristics and health indicators among indigenous Mexican migrants were examined. Results revealed gender differences in cultural identifications, perceived discrimination, self-esteem, self-efficacy, and various health indicators including depression severity, culture-bound syndromes, and self-rated health. Multivariate regression and structural equation path modeling demonstrated how indigenous cultural identification and perceived discrimination affects health. Findings suggest that interventions should utilize indigenous community-based activities designed to promote self-esteem and the value of indigenous culture, with a focus on females.

Probable Posttraumatic Stress Disorder and Psychiatric Co-morbidity among Latino Primary Care Patients in Puerto Rico

Background

The present investigation was designed to study PTSD among inner city primary care patients in Puerto Rico. Specifically, we examined the rate of probable PTSD, PTSD co-morbidity with MDD and GAD, and the association of probable PTSD and co-occurring disorders with demographic, treatment, and alcohol related factors.

Methods

We screened 3,568 patients at primary care practices serving primarily low-income patients. The presence of probable PTSD was assessed with the Primary Care PTSD screen, major depression with the PHQ-9, and generalized anxiety disorder with the GAD Q-IV.

Results

Fourteen percent of our sample screened positive for probable PTSD. Among this group, 12% met criteria for co-morbid GAD without MDD and 15.9% for co-morbid MDD with/without GAD, whereas 72% of the patients with probable PTSD did not meet criteria for co-morbidity. Over 80% of the patients with probable PTSD indicated they were not receiving mental health treatment. Multiple logistic regression findings show that there were no significant differences in demographic and alcohol related factors by PTSD status. Multinomial logistic regression analysis revealed significant differences in the use of mental health treatment among the subgroups of patients with probable PTSD. As compared to patients with only probable PTSD, the use of mental health services was 4 times higher among patients with probable PTSD and MDD and over 2 1/2 times higher among patients with probable PTSD and GAD.

Conclusion

The prevalence rate of probable PTSD in our sample was similar to the rates reported for soldiers after returning from deployment and for Latinos after the September 11 attacks. The high prevalence of probable PTSD and low use of mental health treatment among inner city primary care patients in our study, highlight the need of future research to obtain information on how to effectively target and treat Latino primary care patients in need of treatment for PTSD.

Psychometrics of the PHQ-9 as a measure of depressive symptoms in patients with heart failure

BACKGROUND

Depression in patients with heart failure commonly goes undiagnosed and untreated. The Patient Health Questionnaire-9 (PHQ-9) is a simple, valid measure of depressive symptoms that may facilitate clinical assessment. It has not been validated in patients with heart failure.

AIMS

To test the reliability, and concurrent and construct validity of the PHQ-9 in patients with heart failure.

METHODS

A total of 322 heart failure patients (32% female, 61 ± 12 years, 56% New York Heart Association class III/IV) completed the PHQ-9, the Beck Depression Inventory-II (BDI-II), and the Control Attitudes Scale (CAS).

RESULTS

Cronbach's alpha of .83 supported the internal consistency reliability of the PHQ-9 in this sample. Inter-item correlations (range .22-.66) and item-total correlation (except item 9) supported homogeneity of the PHQ-9. Spearman's rho of .80, (p < .001) between the PHQ-9 and the BDI-II supported the concurrent validity as did the agreement between the PHQ-9 and the BDI-II (Kappa = 0.64, p < .001). At cut-off score of 10, the PHQ-9 was 70% sensitive and 92% specific in identifying depressive symptoms, using the BDI-II scores as the criterion for comparison. Differences in PHQ-9 scores by level of perceived control measured by CAS (t(318) = -5.05, p < .001) supported construct validity.

CONCLUSION

The PHQ-9 is a reliable, valid measure of depressive symptoms in patients with heart failure.

Effectiveness of a multi-component programme for managing depression in primary care: a cluster randomized trial. The INDI project

BACKGROUND

There are significant shortcomings in the management and clinical outcomes of depressed patients. The objective is to assess the effectiveness of a multi-component programme to improve the management of depression in primary care.

METHODS

This is a cluster-randomized controlled trial, conducted between June 2007 and June 2010. Twenty primary care centres were allocated to intervention group or usual care group. The intervention consisted of a multi-component programme with clinical, educational and organizational procedures including primary care nurses working as case-managers. Outcomes were monitored by a blinded interviewer at 0, 3, 6 and 12 months.

TRIAL REGISTRATION

ISRCTN16384353, at http://isrctn.org.

RESULTS

In total, 338 adult patients with major depression (DSM-IV) were assessed at baseline. At 12 months, 302 patients were assessed, 172 in the intervention group and 130 in the control group. The severity of depression (mean Patient Health Questionnaire-9 score) was 1.76 points lower in the intervention group [7.15 vs. 8.78, 95% CI=-3.53 to 0.02, p=0.053]. The treatment response rate was 15.4% higher in the intervention group than in the controls [66.9% vs. 51.5%, odds ratio 1.9, 95% CI=1.2 to 3.1, p=0.011)], and the remission rate was 13.4% higher [48.8% vs. 35.4%, odds ratio 1.8, 95% CI=1.1 to 2.9, p=0.026)].

LIMITATIONS

Unblinded physicians diagnosed depression in their patients and decided whether to include them in the study, so we cannot discount a hidden selection bias.

CONCLUSIONS

The programme for managing depression leads to better clinical outcomes in patients with major depression in primary care settings.

[Integral Care Guide for Early Detection and Diagnosis of Depressive Episodes and Recurrent Depressive Disorder in Adults. Integral Attention of Adults with a Diagnosis of Depressive Episodes and Recurrent Depressive Disorder: Part I: Risk Factors, Screening, Suicide Risk Diagnosis and Assessment in Patients with a Depression Diagnosis]

INTRODUCTION

Depression is an important cause of morbidity and disability in the world; however, it is under-diagnosed at all care levels.

OBJECTIVE

The purpose here is to present recommendations based on the evidence gathered to answer a series of clinical questions concerning risk factors, screening, suicide risk diagnosis and evaluation in patients undergoing a depressive episode and recurrent depressive disorder. Emphasis has been made upon the approach used at the primary care level so as to grant adult diagnosed patients the health care guidelines based on the best and more updated evidence available thus achieving minimum quality standards.

METHODOLOGY

A practical clinical guide was elaborated according to standards of the Methodological Guide of the Ministry of Social Protection. Recommendation from guides NICE90 and CANMAT were adopted and updated so as to answer the questions posed while de novo questions were developed.

RESULTS

Recommendations 1-22 corresponding to screening, suicide risk and depression diagnosis were presented. The corresponding degree of recommendation is included.

The prevalence of spirituality, optimism, depression, and fatalism in a bi-ethnic stroke population

To provide insight into the reduced post-stroke all-cause mortality among Mexican Americans, we explored ethnic differences in the pre-stroke prevalence of (1) spirituality, (2) optimism, (3) depression, and (4) fatalism in a Mexican American and non-Hispanic white stroke population. The Brain Attack Surveillance in Corpus Christi (BASIC) project is a population-based stroke surveillance study in Nueces County, Texas. Seven hundred ten stroke patients were queried. For fatalism, optimism, and depression scales, unadjusted ethnic comparisons were made using linear regression models. Regression models were also used to explore how age and gender modify the ethnic associations after adjustment for education. For the categorical spirituality variables, ethnic comparisons were made using Fisher's exact tests. Mexican Americans reported significantly more spirituality than non-Hispanic whites. Among women, age modified the ethnic associations with pre-stroke depression and fatalism but not optimism. Mexican American women had more optimism than non-Hispanic white women. With age, Mexican American women had less depression and fatalism, while non-Hispanic white women had more fatalism and similar depression. Among men, after adjustment for education and age, there was no ethnic association with fatalism, depression, and optimism. Spirituality requires further study as a potential mediator of increased survival following stroke among Mexican Americans. Among women, evaluation of the role of optimism, depression, and fatalism as they relate to ethnic differences in post-stroke mortality should be explored.

Patient Health Questionnaire: Greek language validation and subscale factor structure

This study aimed to assess the reliability, validity, and factor structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the factor structure of the PHQ subscales. A total of 520 participants (73.9% women; M(Age) = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P < .001) and convergent validity with the following: Alcohol Use Disorders Identification Test, Beck Depression Inventory, Psychiatric Diagnostic Screening Questionnaire (panic disorder, somatization, bulimia, and binge eating), and Anxiety Sensitivity Index (overall mean, r = 0.52; P < .001). The relation between the PHQ subscale diagnoses and functional impairment, as assessed by the 12-item Health Survey 12, was comparable with the original validation results for all subscales except alcohol. The depression, alcohol, and anxiety subscales exhibited single-factor structures. Subscales assessing eating disorders, panic disorder, and somatization difficulties exhibited 2-, 3-, and 4-factor structures, respectively. Overall, PHQ subscales demonstrated good psychometric properties, with the exception of the subscale examining problematic alcohol use. Overall, PHQ demonstrates good reliability, validity, and appropriate factor structure in a Greek-speaking college population. Psychometric research is needed on the Greek PHQ in primary care settings.

Building a community-academic partnership: implementing a community-based trial of telephone cognitive behavioral therapy for rural latinos

Concerns about the appropriate use of EBP with ethnic minority clients and the ability of community agencies to implement and sustain EBP persist and emphasize the need for community-academic research partnerships that can be used to develop, adapt, and test culturally responsive EBP in community settings. In this paper, we describe the processes of developing a community-academic partnership that implemented and pilot tested an evidence-based telephone cognitive behavioral therapy program. Originally demonstrated to be effective for urban, middle-income, English-speaking primary care patients with major depression, the program was adapted and pilot tested for use with rural, uninsured, low-income, Latino (primarily Spanish-speaking) primary care patients with major depressive disorder in a primary care site in a community health center in rural Eastern Washington. The values of community-based participatory research and community-partnered participatory research informed each phase of this randomized clinical trial and the development of a community-academic partnership. Information regarding this partnership may guide future community practice, research, implementation, and workforce development efforts to address mental health disparities by implementing culturally tailored EBP in underserved communities.

Symptoms of depression in a Hispanic primary care population with and without chronic medical illnesses

OBJECTIVE

To describe somatic and psychiatric symptoms reported by Hispanic primary care patients with and without depression and/or chronic medical illnesses.

METHOD

Adult Hispanic patients (n = 104) in a Mobile Health Program in underserved southern Arizona participated in a survey conducted between September 2006 and February 2007 to obtain information about the somatic and psychiatric symptoms that they were experiencing. They were asked to rate the severity of their symptoms listed in the depression screen Personal Health Questionnaire-9 (PHQ-9), the Symptom Checklist-90-Revised (SCL-90-R), and 5 new symptoms described by patients in focus groups conducted in the first phase of the project. Patients were categorized as depressed if their PHQ-9 scores were 10 or above, and they were further categorized as having or not having chronic illnesses based on self-report. Analyses of variance were conducted for each SCL-90-R symptom dimension to compare across the 4 groups (group 1: not depressed and not medically ill; group 2: medically ill but not depressed; group 3: depressed but not medically ill; and group 4: depressed and medically ill).

RESULTS

Patients with chronic medical illnesses comorbid with depression were found to report significantly more somatic symptoms than those with only chronic medical illnesses or depression alone (P ≤ .001). They also reported significantly more psychopathology than patients with depression alone (P ≤ .05 or better).

CONCLUSIONS

Patients with medical illnesses comorbid with depression are more likely to exhibit psychopathology than patients with medical illnesses or depression alone.

Health-related quality of life of individuals with traumatic brain injury in Barranquilla, Colombia

OBJECTIVE

To assess health-related quality of life (HRQoL) of individuals with traumatic brain injury (TBI) in Barranquilla, Colombia.

PARTICIPANTS/METHODS

Thirty-one individuals with TBI and 61 healthy controls completed the SF-36, a self-report HRQoL measure composed of eight component areas: physical health problems, pain, role limitations due to physical problems or due to emotional problems, emotional well-being, social functioning, energy/fatigue and general health perceptions.

RESULTS

The samples were statistically similar with respect to age, gender and education and statistically different with respect to depression, SES, social support and cognition. Compared to healthy controls, individuals with TBI had significantly lower means on all SF-36 sub-scales. However, after adjusting for depression, SES, social support and cognitive performance, significant differences remained on three of the SF-36 sub-scales. Specifically, individuals with TBI had lower adjusted means on Role-Physical (p-value < 0.005), Role-Emotional (p-value < 0.005) and Bodily Pain (p-value < 0.05).

CONCLUSION

Even after controlling for depression, SES, social support and cognitive performance, individuals with TBI living in Barranquilla Colombia report having poorer quality of life across various domains, including Role-Physical, Role-Emotional and Bodily Pain. These findings suggest the need for rehabilitation health professionals to develop and implement culturally-appropriate interventions to improve quality of life in Colombian individuals with TBI.

Characteristics of subjects with comorbidity of symptoms of generalized anxiety and major depressive disorders and the corresponding threshold and subthreshold conditions in an Arab general population sample

BACKGROUND

There is controversy about differential meaningfulness between comorbid generalized anxiety disorder (GAD)/ major depressive disorder (MDD), the corresponding "pure" disorders and subthreshold conditions. We compared subjects who met DSM-IVTR criteria of symptoms and functional impairment for comorbid GAD/MDD, versus those with GAD, MDD, subthreshold conditions, and without significant symptoms. The comparison measures were socio-demographics, clinical severity, and quality of life (QOL).

MATERIAL/METHOD

Participants (N=3155: 55.1% female, aged 16-87 yrs) were a general population sample of Kuwaitis who self-completed DSM-IVTR criteria-based questionnaires and the WHOQOL-BREF in 2006/7. We scrutinized the questionnaires and classified them into categories.

RESULTS

Of the 273 GAD and 210 MDD cases, the prevalence of comorbidity among cases with GAD was 30.8%, and 40% among MDD. Of the 398 subthreshold GAD and 194 subthreshold MDD cases, 58 had subthreshold anxiety/depression comorbidity. Comorbid threshold GAD/MDD cases were significantly older, and more likely to be women, divorced and unemployed, compared with GAD and MDD. In all measures, the threshold GAD/MDD comorbidity was the severest condition. There was a monotonic decrease in QOL with increasing anxiety-depression symptoms. For the predictors of subjective QOL, the GAD/MDD comorbidity group differed markedly from the others.

CONCLUSIONS

The high prevalence of comorbidity and subthreshold conditions supports the recommendation to assess them routinely, regardless of the primary reason for consultation. Our findings support a dimensional model with comorbid GAD/MDD at the higher end of a continuum, and differing from the "pure" conditions by a later onset and predictors of subjective wellbeing.

Case identification of depression in patients with chronic physical health problems: a diagnostic accuracy meta-analysis of 113 studies

BACKGROUND

Depression is more likely in patients with chronic physical illness, and is associated with increased rates of disability and mortality. Effective treatment of depression may reduce morbidity and mortality. The use of two stem questions for case finding in diabetes and coronary heart disease is advocated in the Quality and Outcomes Framework, and has become normalised into primary care.

AIM

To define the most effective tool for use in consultations to detect depression in people with chronic physical illness.

DESIGN

Meta-analysis.

METHOD

The following data sources were searched: CENTRAL, CINAHL, Embase, HMIC, MEDLINE, PsycINFO, Web of Knowledge, from inception to July 2009. Three authors selected studies that examined identification tools and used an interview-based ICD (International Classification of Diseases) or DSM (Diagnostic and statistical Manual of Mental Disorders) diagnosis of depression as reference standard. At least two authors independently extracted study characteristics and outcome data and assessed methodological quality.

RESULTS

A total of 113 studies met the eligibility criteria, providing data on 20,826 participants. It was found that two stem questions, PHQ-9 (Patient Health Questionnaire), the Zung, and GHQ-28 (General Health Questionnaire) were the optimal measures for case identification, but no method was sufficiently accurate to recommend as a definitive case-finding tool. Limitations were the moderate-to-high heterogeneity for most scales and the facts that few studies used ICD diagnoses as the reference standard, and that a variety of methods were used to determine DSM diagnoses.

CONCLUSION

Assessing both validity and ease of use, the two stem questions are the preferred method. However, clinicians should not rely on the two-questions approach alone, but should be confident to engage in a more detailed clinical assessment of patients who score positively.

Depressive and anxiety disorders in chronic hepatitis C patients: reliability and validity of the Patient Health Questionnaire

Depression and anxiety in patients with hepatitis C virus (HCV) infection influence their health-related quality of life and their adherence to antiviral treatment.

OBJECTIVE

To study the psychometric properties of the Patient Health Questionnaire (PHQ) as a screening instrument for depression and anxiety in HCV patients.

METHODS

Criterion validity, using the structured clinical interview for DSM-IV-Axis I (SCID-I) to diagnose depression and anxiety disorders as diagnostic standard, was evaluated for both summed and algorithm-based PHQ in 500 HCV patients. Correlations with quality of life (Short-Form-36 Health Survey; SF-36) and severity of illness (Hospital Anxiety and Depression Scale; HADS) were calculated to assess construct validity. Test-retest reliability and patients' reaction to the PHQ were assessed in 120 HCV patients.

RESULTS

Twenty-three percent of patients (N=114) had a psychiatric disorder (any depressive disorder=18.2%; major depressive disorder=6.4%; generalized anxiety disorder=7.0% and panic disorder=5.8%). The questionnaire demonstrated good test-retest reliability for any depressive disorder (k=.847), major depressive disorder (k=.784), generalized anxiety disorder (k=.787), panic disorder (k=.848), and for any psychiatric disorder (k=.847). There was good agreement between PHQ and SCID-I diagnoses (for any PHQ disorder, k=.821; overall accuracy=90.43%, sensitivity=83.84%; specificity=97.01%). Patients with any PHQ disorder had higher impairment on the SF-36 (p<.001). HADS depression and anxiety scores showed high correlations with PHQ depression (p<.001) and anxiety (p<.001) scores respectively. PHQ administration was well accepted by 97% of patients.

CONCLUSIONS

The Spanish version of the PHQ is a reliable, valid, and useful screening instrument to detect depression, generalized anxiety and panic disorders in HCV patients.

Relationship between Obesity, Depression, and Disability in Middle-Aged Women

BACKGROUND: Obesity and depression are closely linked, and each has been associated with disability. However, few studies have assessed inter-relationships between these conditions. DESIGN AND METHODS: In this study, 4 641 women aged 40-65 completed a structured telephone interview including self-reported height and weight, the Patient Health Questionnaire (PHQ) assessment of depression, and the World Health Organization Disability Assessment Schedule II (WHODAS II). The survey response rate was 62%. We used multivariable regression models to assess relationships between obesity, depression, and disability. RESULTS: The mean age was 52 years; 82% were white; and 80% were currently employed. One percent were underweight, 39% normal weight, 27% overweight, and 34% obese. Mild depressive symptoms were present in 23% and moderate-to-severe symptoms were present in 13%. After multivariable adjustment, depression was a strong independent predictor of worse disability in all 7 domains (cognition, mobility, self-care, social interaction, role functioning, household, and work), but obesity was only a significant predictor of greater mobility, role-functioning, household, and work limitations (P<0.05) (overweight was not significantly associated with any disability domain). Overall, the effect on disability was stronger and more pervasive for depression than obesity, and there was no significant interaction between the two conditions (P>0.05). Overweight and obesity were associated with 5 760 days of absenteeism per 1 000 person-years, and depression was associated with 18 240 days of absenteeism per 1 000 person-years. CONCLUSIONS: The strong relationships between depression, obesity and disability suggest that these conditions should be routinely screened and treated among middle-aged women.

Preliminary evaluation of the reliability and validity of the Shame and Stigma Scale in head and neck cancer

BACKGROUND

Facial disfigurement from head and neck cancer can lead to the development of shame and a perception of stigma. We sought to develop the Shame and Stigma Scale (SSS) to measure this. Items were administered to 104 patients with squamous cell carcinoma of the oral cavity, together with measures of quality of life and adaptation. Exploratory factor analysis and item response theory (IRT) models assessed its psychometric properties.

RESULTS

A 20-item SSS had a Cronbach's alpha of 0.94 and 4 factors: shame with appearance, sense of stigma, regret, and speech/social concerns. These factors show satisfactory internal validity, convergent validity with the Functional Assessment of Cancer Therapy-General (FACT-G) and Functional Assessment of Cancer Therapy-Head and Neck (FACT-H&N), Demoralization Scale and Patient Health Questionnaire (PHQ) Depression, and divergent validity with the Social Desirability Scale. The items displayed desirable properties in factor-specific (IRT) models.

CONCLUSION

Further validation studies are worthwhile to confirm this factor structure, reliability, and validity, and generalizability to all head and neck cancers.

Are patient characteristics associated with quality of depression care and outcomes in collaborative care programs for depression?

OBJECTIVE

To determine whether demographic or clinical characteristics of primary care patients are associated with depression treatment quality and outcomes within a collaborative care model.

METHODS

Collaborative depression care, based on principles from the Improving Mood-Promoting Access to Collaborative Treatment (IMPACT) trial, was implemented in six community health organizations serving disadvantaged patients. Over 3 years, 2821 patients were treated. Outcomes were receipt of quality treatment and depression improvement.

RESULTS

Logistic regression analyses revealed that patients who were older, more depressed or more anxious were more likely to be retained in treatment and to receive appropriate pharmacotherapy. Whereas gender and depression severity were unrelated to depression outcomes, significantly more patients who preferred Spanish (59.1%) than English (48.5%, P<.01) improved within 12 weeks in multivariate analyses. High baseline anxiety was associated with a lower probability of improvement, and older age showed a similar trend. Survival analyses demonstrated that patients who preferred Spanish or were less anxious improved significantly more rapidly than their counterparts (P<.001).

CONCLUSIONS

Patients with more anxiety received higher quality care but experienced worse depression outcomes than less anxious patients. Spanish language preference was strongly associated with depression improvement. This collaborative care program attained admirable outcomes among disadvantaged Spanish-speaking patients without extensive cultural tailoring of care.

The relationship of level of positive mental health with current mental disorders in predicting suicidal behavior and academic impairment in college students

OBJECTIVE

To investigate whether level of positive mental health complements mental illness in predicting students at risk for suicidal behavior and impaired academic performance.

PARTICIPANTS

A sample of 5,689 college students participated in the 2007 Healthy Minds Study and completed an Internet survey that included the Mental Health Continuum-Short Form and the Patient Health Questionnaire screening scales for depression and anxiety disorders, questions about suicide ideation, plans, and attempts, and academic impairment.

RESULTS

Just under half (49.3%) of students were flourishing and did not screen positive for a mental disorder. Among students who did, and those who did not, screen for a mental disorder, suicidal behavior and impaired academic performance were lowest in those with flourishing, higher among those with moderate, and highest in those with languishing mental health.

CONCLUSIONS

Positive mental health complements mental disorder screening in mental health surveillance and prediction of suicidal behavior and impairment of academic performance.

Prevalence of Depressive Symptoms among University Students in Oman

OBJECTIVES

To study the prevalence of depressive symptoms and its association with gender, academic year, and college among university students in Oman.

METHODS

A cross-sectional study was conducted among Omani students attending the students' clinic of the Sultan Qaboos University (SQU). A systematic sampling of students, males and females, from different colleges, who visited the clinic during the study period, was carried out. The self-administered Patient Health Questionnaire (PHQ-9) was used to screen for propensity to depression.

RESULTS

A total of 481 students participated in the study (243 males and 238 females). Overall, 133 (27.7%) of the participants (66 males and 67 females) had depression of various grades based on the PHQ-9 diagnostic criteria using a cut point of more than 11. Depression score at the cut point of 11 was not statistically associated with gender, college and the academic year.

CONCLUSION

Tendency for depression might be a common health problem among college students in Oman attending primary health care facilities. Further research on socio-demographic characteristics and the effect of depression on the academic performance is needed.