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Full-Text Articles in Medicine and Health Sciences
Differences In The Prevalence, Severity And Symptom Profiles Of Depression In Boys And Adolescents With An Autism Spectrum Disorder Versus Normally Developing Controls, Vicki Bitsika, Christopher Sharpley
Differences In The Prevalence, Severity And Symptom Profiles Of Depression In Boys And Adolescents With An Autism Spectrum Disorder Versus Normally Developing Controls, Vicki Bitsika, Christopher Sharpley
Vicki Bitsika
The prevalence, severity and symptom profiles for major depressive disorder (MDD) were compared in samples of boys and adolescents with and without an autism spectrum disorder (ASD). Self-reports were obtained on the Depression subscale of the Child and Adolescent Symptoms Inventory (CASI-D) with 70 ASD and 50 non-ASD male participants between the ages of 8 and 18 from Queensland, Australia who were matched for age and IQ. Results indicated that the ASD participants had significantly higher total CASI-D scores, a greater proportion of participants who qualified for a diagnosis of MDD, and over 50% higher scores for 8 of the …
Frontal Alpha Asymmetry As A Pathway To Behavioural Withdrawal In Depression: Research Findings And Issues, Emmanuel Jesulola, Christopher Sharpley, Vicki Bitsika, Linda Agnew, Peter Wilson
Frontal Alpha Asymmetry As A Pathway To Behavioural Withdrawal In Depression: Research Findings And Issues, Emmanuel Jesulola, Christopher Sharpley, Vicki Bitsika, Linda Agnew, Peter Wilson
Vicki Bitsika
Depression has been described as a process of behavioural withdrawal from overwhelming aversive stressors, and which manifests itself in the diagnostic symptomatology for Major Depressive Disorder (MDD). The underlying neurobiological pathways to that behavioural withdrawal are suggested to include greater activation in the right vs the left frontal lobes, described as frontal EEG asymmetry. However, despite a previous meta-analysis that provided overall support for this EEG asymmetry hypothesis, inconsistencies and several methodological confounds exist. The current review examines the literature on this issue, identifies inconsistencies in findings and discusses several key research issues that require addressing for this field to …
Measuring Individual Burden Of Illness For Depression Among Prostate Cancer Patients, Christopher Sharpley, Vicki Bitsika, David Christie
Measuring Individual Burden Of Illness For Depression Among Prostate Cancer Patients, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Objective: This study aims to develop and test three potential models of Individual Burden of Illness for Depression (IBI-D) in prostate cancer patients. Methods: Responses to three sets of scales measuring depressive symptoms, functional impairment, and quality of life satisfaction were collected from 191 prostate cancer patients and analysed via principal components analysis to obtain weightings for each of the scales within the three sets of measures. These weightings were then used to form IBI-D Indices, and these were then compared with depressive symptoms alone for their overlap. Results: Single-factor solutions were found for each of the three IBI-D models, …
Variability In Depressive Symptoms Of Cognitive Deficit And Cognitive Bias During The First 2 Years After Diagnosis In Australian Men With Prostate Cancer, Christopher Sharpley, Vicki Bitsika, David Christie
Variability In Depressive Symptoms Of Cognitive Deficit And Cognitive Bias During The First 2 Years After Diagnosis In Australian Men With Prostate Cancer, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
The incidence and contribution to total depression of the depressive symptoms of cognitive deficit and cognitive bias in prostate cancer (PCa) patients were compared from cohorts sampled during the first 2 years after diagnosis. Survey data were collected from 394 patients with PCa, including background information, treatments, and disease status, plus total scores of depression and scores for subscales of the depressive symptoms of cognitive bias and cognitive deficit via the Zung Self-Rating Depression Scale. The sample was divided into eight 3-monthly time-since-diagnosis cohorts and according to depression severity. Mean scores for the depressive symptoms of cognitive deficit were significantly …
Differences In Major Depressive Disorder And Generalised Anxiety Disorder Symptomatology Between Prostate Cancer Patients Receiving Hormone Therapy And Those Who Are Not, Christopher Sharpley, Vicki Bitsika, Addie Wootten, David Christie
Differences In Major Depressive Disorder And Generalised Anxiety Disorder Symptomatology Between Prostate Cancer Patients Receiving Hormone Therapy And Those Who Are Not, Christopher Sharpley, Vicki Bitsika, Addie Wootten, David Christie
Vicki Bitsika
Objective: The aim of this study is to explore the associations between hormone treatment variables and depression, and the nature of depression in prostate cancer (PCa) patients by comparing the severity and symptom profile of anxiety and depression in men who were currently receiving hormone therapy (HT) versus those who were not. Method: Self-reports of anxiety and depression on standardized scales of GAD and major depressive disorder (MDD) were collected from 156 PCa patients across two recruitment sites in Australia. Patients who were currently receiving HT were compared with patients not receiving HT for their severity and symptom profiles on …
Predictors Of Depression In Prostate Cancer Patients: A Comparison Of Psychological Resilience Versus Pre-Existing Anxiety And Depression, Christopher Sharpley, Vicki Bitsika, Addie Wootten, David Christie
Predictors Of Depression In Prostate Cancer Patients: A Comparison Of Psychological Resilience Versus Pre-Existing Anxiety And Depression, Christopher Sharpley, Vicki Bitsika, Addie Wootten, David Christie
Vicki Bitsika
Background: Previous anxiety and depression can influence current anxiety and depression, and psychological resilience may be a buffer against current anxiety and depression. However, despite the relevance of these two sets of predictors of anxiety and depression, and their potential in treatment planning, no reports have been published on their role in post-diagnosis anxiety and depression among prostate cancer (PCa) patients. Therefore, this study aimed to determine the roles of these predictors in a sample of men with prostate cancer. Method: Retrospective self-reports of anxiety and depression for how they were before receiving their diagnosis of PCa and at the …
Does Resilience 'Buffer' Against Depression In Prostate Cancer Patients? A Multi-Site Replication Study, Christopher Sharpley, Vicki Bitsika, Addie Wootten, David Christie
Does Resilience 'Buffer' Against Depression In Prostate Cancer Patients? A Multi-Site Replication Study, Christopher Sharpley, Vicki Bitsika, Addie Wootten, David Christie
Vicki Bitsika
Although psychological resilience has been shown to 'buffer' against depression following major stressors, no studies have reported on this relationship within the prostate cancer (PCa) population, many of whom are at elevated risk of depression, health problems and suicide. To investigate the effects of resilience upon anxiety and depression in the PCa population, postal surveys of 425 PCa patients were collected from two sites: 189 PCa patients at site 1 and 236 at site 2. Background data plus responses to depression and resilience scales were collected. Results indicated that total resilience score was a significant buffer against depression across both …
Which Stressors Are Associated With Which Forms Of Depression In A Homogenous Sample? An Analysis Of The Effects Of Lifestyle Changes And Demands On Five Subtypes Of Depression, Vicki Bitsika, Christopher Sharpley
Which Stressors Are Associated With Which Forms Of Depression In A Homogenous Sample? An Analysis Of The Effects Of Lifestyle Changes And Demands On Five Subtypes Of Depression, Vicki Bitsika, Christopher Sharpley
Vicki Bitsika
Background: Although depression is often considered as a single or unitary construct, evidence indicates the existence of several major subtypes of depression, some of which have distinct neurobiological bases and treatment options. Objective: To explore the incidence of five subtypes of depression, and to identify which lifestyle changes and stressor demands are associated with each of five established subtypes of depression, within a homogenous non-clinical sample. Method: 398 Australian university students completed the Effects of University Study on Lifestyle Questionnaire to identify their major stressors, plus the Zung Self-Rating Depression Scale to measure their symptomatology. Regression analysis was used to …
How Prostate Cancer Patients Cope With The Effects Of Diagnosis And Treatment: Development Of The Effects Of Prostate Cancer Coping Strategies Scale, Christopher Sharpley, Vicki Bitsika, David Christie
How Prostate Cancer Patients Cope With The Effects Of Diagnosis And Treatment: Development Of The Effects Of Prostate Cancer Coping Strategies Scale, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Background: The elevated anxiety and depression experienced by prostate cancer (PCa) patients can impair their decision-making as well as decrease their psychological well-being and weaken relationships with partner and family. Although standardised assessment models exist for identifying the symptoms of anxiety or depression, relatively little attention has been given to identifying the causal antecedents that PCa patients encounter and that may lead to anxiety or depression, nor their own attempts to cope with those antecedents. This study investigated the coping strategies used by a sample of PCa patients in response to the specific stressors and lifestyle changes that arose from …
Variability In Anxiety And Depression Over Time Following Diagnosis In Patients With Prostate Cancer, Christoper Sharpley, David Christie, Vicki Bitsika
Variability In Anxiety And Depression Over Time Following Diagnosis In Patients With Prostate Cancer, Christoper Sharpley, David Christie, Vicki Bitsika
Vicki Bitsika
To determine the presence and nature of variability in anxiety and depression in patients with prostate cancer (PCa) over 3 years following diagnosis, 442 patients with PCa completed standardized anxiety and depression inventories via survey between 1 and 36 months after receiving their initial diagnosis. Data were analyzed from a series of 3-month cohorts, and results indicated that total scores and incidence of clinically significant anxiety and depression varied over time, but that this variability was restricted to specific subfactors of anxiety and depression. Provision of effective psychological treatment to patients with PCa is discussed.
Incidence And Nature Of Anxiety-Depression Comorbidity In Prostate Cancer Patients, Christoper Sharpley, Vicki Bitsika, David Christie
Incidence And Nature Of Anxiety-Depression Comorbidity In Prostate Cancer Patients, Christoper Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Background: The aim of this study was to measure the incidence of anxiety-depression comorbidity among a sample of prostate cancer (PCa) patients and to investigate the total score, factor score and scale item differences across subgroups defined according to the presence of anxiety and/or depression. Methods: 491 PCa patients who had received their initial diagnosis between 1 and 113 months previously completed a survey of background variables, as well as the Zung Self-Rating Anxiety and Depression Scales (SAS, SDS). Results: Incidence of anxiety-depression comorbidity was nearly 16%, and higher than that previously reported in other samples. Although the directional differences …
Understanding The Functionality Of Depression Among Australian Breast Cancer Patients: Implications For Cognitive And Behavioural Interventions, Christopher Sharpley, Vicki Bitsika, David Christie
Understanding The Functionality Of Depression Among Australian Breast Cancer Patients: Implications For Cognitive And Behavioural Interventions, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Background: Depression in breast cancer (BCa) patients can reduce quality of life, relationships and treatment compliance, thus constituting a major target for cognitive behavioural (CBT) interventions. Although CBT treatments, which are built upon consideration of the roles of antecedents and consequences for depressive behaviour, are effective, the nature of those antecedents which trigger depression among BCa patients has received relatively little attention.
Purpose: Hypotheses were (1) to determine if BCa patients were experiencing either or both of punishment type I and II and (2) to identify if these aspects of punishment were related to overall depression.
Method: Two hundred fifty-three …
The Role Of Melancholia In Prostate Cancer Patients' Depression, Christopher Sharpley, Vicki Bitsika, David Christie
The Role Of Melancholia In Prostate Cancer Patients' Depression, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Background: Although it is well established that prostate cancer (PCa) patients are more likely to experience clinical depression than their age-matched non-prostate cancer peers, and that such depression can have negative effects upon survival, little is known about the underlying nature of the depressive symptomatology that these men experience. In particular, the incidence of melancholic symptoms of depression, which are signs of increased risk of suicide and resistance to treatment, has not previously been reported in PCa patients. The present study aimed to measure the incidence and nature of Melancholia in PCa depression.
Method: A sample of 507 …
How Is Resilience Associated With Anxiety And Depression? Analysis Of Factor Score Interactions Within A Homogeneous Sample, Vicki Bitsika, Christopher Sharpley, Kylie Peters
How Is Resilience Associated With Anxiety And Depression? Analysis Of Factor Score Interactions Within A Homogeneous Sample, Vicki Bitsika, Christopher Sharpley, Kylie Peters
Vicki Bitsika
Aim: To explore the ways in which resilience is associated with anxiety and depression within a homogenous sample.Methods: 401 Australian university students completed the Connor-Davidson Resilience Scale and the Zung SelfratingAnxiety and Depression Scales. Factor scores from the resilience scale were regressed against total anxiety and depression scores, combined anxiety-depression scores and the underlying factors of the combined anxiety-depression construct.Results: Self-confidence and optimism were most strongly negatively associated with anxiety and depression, followed by being decisive and solution-focussed and seeking challenges, having a strong purpose and being persistent, although different combinations of factors predicted anxiety than did depression. Spiritual beliefs …
Helping Prostate Cancer Patients Understand The Causes Of Anxiety And Depression: Comparing Cancer-Caused Vs Patient Response Events, Christopher Sharpley, Vicki Bitsika, David Christie
Helping Prostate Cancer Patients Understand The Causes Of Anxiety And Depression: Comparing Cancer-Caused Vs Patient Response Events, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Background: Prostate cancer (PCa) patients have elevated anxiety and depression, often showing impairments in decision-making and weakened relationships with their partner and family. Although treatment for these psychological side-effects of PCa is strongly recommended, relatively little is known of the causal processes underlying them. This study compared cancer-based lifestyle changes vs patient behavioural responses to cancer as predictors of anxiety and depression among PCa patients. Methods: PCa patients (381) were surveyed for their responses to standardised anxiety and depression questionnaires, plus a questionnaire designed to assess the kinds of lifestyle changes that had occurred to them and their responses to …
'Why I Feel Bad': Refinement On The Effects Of Prostate Cancer Upon Lifestyle Questionnaire And An Initial Exploration Of Its Links With Anxiety And Depression Among Prostate Cancer Patients, Christopher Sharpley, Vicki Bitsika, David Christie
'Why I Feel Bad': Refinement On The Effects Of Prostate Cancer Upon Lifestyle Questionnaire And An Initial Exploration Of Its Links With Anxiety And Depression Among Prostate Cancer Patients, Christopher Sharpley, Vicki Bitsika, David Christie
Vicki Bitsika
Objective: To psychometrically refine a standardized scale for identifying those lifestyle changes that were most likely to contribute to anxiety and depression among prostate cancer (PCa) patients.
Methods: Three hundred and eighty-one PCa patients who had received their initial diagnosis between one and 96 months completed a survey of background variables, anxiety and depression inventories and the 36-item Effects of Prostate Cancer upon Lifestyle Questionnaire (EPCLQ).
Results: Levels of anxiety (24%) and depression (26%) were similar to those previously reported for PCa patients. The EPCLQ was shown to have satisfactory psychometric properties and significantly predicted anxiety and depression scores and …