Biomedical subjects

Tore C Stiles

Publications and source records attributed to Tore C Stiles.

9 recordsLinked to original sources

PubMed2006

Treatment motivation, treatment expectancy, and helping alliance as predictors of outcome in cognitive behavioral treatment of OCD.

Predictors of improvement in obsessive-compulsive symptoms (Y-BOCS) in a randomized clinical trial with adult obsessive-compulsive disorder outpatients were examined. Results of multiple regression analyses revealed that a positive helping alliance was significantly predictive of posttreatment Y-BOCS. Treatment expectancy and high motivation to change were not significantly related to posttreatment outcome. None of the predictors were significantly related to Y-BOCS levels at 12-month follow-up, but positive alliance showed a trend to significance.

Adult↗

PubMed2006

Psychometric properties of the Beck Scale for Suicide Ideation: a Norwegian study with university students.

This study presents the psychometric properties of the Norwegian language version of the Beck Scale for Suicide Ideation (BSI). The participants were 314 university students (71 males and 243 females) enrolled in one of the introductory courses in psychology or sociology at the Norwegian University of Science and Technology, Norway. The results revealed satisfactory internal consistency and good temporal stability. Moderately high correlations with other measures of suicide ideation suggested satisfactory concurrent validity. Similarly, the construct validity was evidenced by moderate correlations among the BSI, the Hopkins Symptom Check List (HSCL-25) depressive scale, and the Beck Hopelessness Scale (BHS). In general, the findings suggest that the BSI is a reliable and valid instrument to assess severity of suicide ideation in college students.

Adolescent↗

PubMed2006

Factor structure of the Dysfunctional Attitude Scale (Form A) and the Automatic Thoughts Questionnaire: an exploratory study.

The factor structure of the Norwegian version of the Dysfunctional Attitude Scale and the Automatic Thoughts Questionnaire was investigated with a sample of 344 male military recruits. Principal factor analyses with promax rotation indicated four factors for the former, labeled Performance Evaluation, Need for Approval, Autonomous Attitude, and Perfectionism which accounted for 15.5%, 3.6%, 2.6%, and 2.5% of the total variance, respectively. Two factors comprised the latter. Factor 1 was labeled Negative Self-concept and Personal Maladjustment and accounted for 40% of the total variance, and Factor 2 was labeled Desire for Change and Negative Expectations and accounted for 6.3% of the total variance. The findings may be useful in identifying the specific dysfunctional beliefs and negative automatic thoughts exhibited by military recruits. Such information can also contribute to the development of more effective treatment interventions.

Adolescent↗

PubMed2004

Suicide risk in patients with somatization disorder.

The aim of the study was to assess suicide risk in psychiatric outpatients with and without somatization disorder. A total sample of 120 psychiatric outpatients was used in the study, 29 of whom met diagnostic criteria for somatization disorder. The results indicated that somatization disorder was significantly associated with suicide attempts even when the effects of both a comorbid major depressive disorder and a comorbid personality disorder were statistically controlled for. The results suggest that, although a patient meets the criteria for a principal diagnosis of major depressive disorder and/or a personality disorder, it is still of significant importance to decide whether or not the patient also meets the criteria for a somatization disorder in order to more optimally assess suicide risk. The findings highlight the fact that the potential for suicide in patients with somatization disorder should not be overlooked when a diagnosable depressive disorder or personality disorder is not present.

Adult↗

PubMed2004

Assessing suicide risk in cluster C personality disorders.

The aim of the study was to assess suicide risk in psychiatric outpatients with specific cluster C personality disorders (avoidant, dependent, and obsessive-compulsive). A sample of 142 psychiatric outpatients was used for the study. The sample was composed of 87 outpatients meeting diagnostic criteria for a personality disorder and 53 psychiatric outpatients meeting criteria for an axis I disorder only. The results showed that dependent, but not avoidant or obsessive-compulsive, personality disorders, as well as the clusters A and B personality disorders, were significantly associated with suicide attempts. This association remained significant after controlling for both a lifetime depressive disorder and severity of depression for the cluster A and the cluster B personality disorders, but not for dependent personality disorder. The results underline the importance of assessing suicide risk in patients with cluster A and cluster B personality disorders, while the assessment of suicide risk in patients with cluster C personality disorders seems to be irrelevant as long as assessment of a comorbid depressive disorder is appropriately conducted.

Adult↗

PubMed2004

Norwegian version of the automatic thoughts questionnaire: a reliability and validity study.

This study investigated the reliability and validity of the Norwegian version of the Automatic Thoughts Questionnaire. Three samples were used: (a) 344 male military recruits; (b) 142 psychiatric outpatients; and (c) 41 healthy controls. The Automatic Thoughts Questionnaire was found to have high internal consistency and satisfactory temporal stability. It correlated positively with the Beck Depression Inventory and was found to discriminate significantly between clinically depressed and non-depressed psychiatric patients and healthy controls. In general the results are satisfactory, suggesting that the Norwegian version of the Automatic Thoughts Questionnaire has adequate reliability and validity properties. The Automatic Thoughts Questionnaire was shown to be a useful measure of frequency of automatic negative thoughts in both clinical and non-clinical populations.

Adult↗

PubMed2004

Psychometric properties of the Norwegian version of the Dysfunctional Attitude Scale (Form A).

The present study reports the reliability and validity of the Norwegian version of the Dysfunctional Attitude Scale in non-clinical and clinical populations. The participants were 344 young male military recruits, 41 healthy controls and 142 psychiatric outpatients. All the participants completed the Dysfunctional Attitude Scale, the Beck Depression Inventory and the Automatic Thoughts Questionnaire. The analysis of the Dysfunctional Attitude Scale revealed a Cronbach's alpha of 0.85, indicating satisfactory reliability. Evidence for the construct validity was obtained by the correlation between the Dysfunctional Attitude Scale and the Beck Depression Inventory (r = 0.47) and the Dysfunctional Attitude Scale and the Automatic Thoughts Questionnaire (r = 0.47). Finally, the Dysfunctional Attitude Scale significantly discriminated between clinically depressed, non-depressed psychiatric patients and healthy controls. The results showed that the Norwegian version of the Dysfunctional Attitude Scale possess satisfactory psychometric properties suggesting that this instrument is appropriate for use as a cognitive measure in a Norwegian cultural context.

Adult↗

PubMed2004

Randomized, controlled trial of the effectiveness of short-term dynamic psychotherapy and cognitive therapy for cluster C personality disorders.

OBJECTIVE: This study compared the effectiveness of short-term dynamic psychotherapy and cognitive therapy for outpatients with cluster C personality disorders. METHOD: Patients (N=50) who met the criteria for one or more cluster C personality disorders and not for any other personality disorders were randomly assigned to receive 40 weekly sessions of short-term dynamic psychotherapy or cognitive therapy. The most common axis I disorders in the patient group were anxiety and depression diagnoses. Therapists were experienced, full-time clinicians and were receiving manual-guided supervision. Outcome variables included symptom distress, interpersonal problems, and core personality pathology. Measures were administered repeatedly during and after treatment, and change was assessed longitudinally by means of growth modeling procedures. RESULTS: The overall patient group showed, on average, statistically significant improvements on all measures during treatment and also during a 2-year follow-up period. Significant changes in symptom distress after treatment were found for the group of patients who received short-term dynamic psychotherapy but not for the cognitive therapy patients. Despite these differences in intragroup changes, no statistically significant differences between the short-term dynamic psychotherapy group and cognitive therapy group were found on any measure for any time period. Two years after treatment, 54% of the short-term dynamic psychotherapy patients and 42% of the cognitive therapy patients had recovered symptomatically, whereas approximately 40% of the patients in both groups had recovered in terms of interpersonal problems and personality functioning. CONCLUSIONS: Both short-term dynamic psychotherapy and cognitive therapy have a place in the treatment of patients with cluster C personality disorders. However, factors other than treatment modality may discriminate better between successful and poor outcomes. Such factors should be explored in future studies.

Adult↗

PubMed2003

Suicide risk in outpatients with specific mood and anxiety disorders.

The present study examined the relationships between specific anxiety, mood disorders, levels of hopelessness, and suicide ideation. The sample consisted of 606 outpatients recruited from several psychiatric settings. It was found that dysthymia was significantly associated with hopelessness. Patients presenting major depressive episode with higher anxiety symptoms had significantly increased scores on the hopelessness scale. Major depressive episode and bipolar disorder, but not dysthymia, were significantly associated with higher levels of suicide ideation. Increased levels of anxiety symptoms in patients with dysthymia were associated with increased levels of suicide ideation, while increased depressive symptoms in patients with specific phobia and generalized anxiety disorder were associated with significantly lower levels of suicide ideation. The findings suggest that depressive disorders, but not anxiety disorders, constitute risk for suicide. Moreover, the differentiation between a depressive and an anxiety disorder as the principal diagnosis, as well as the assessment of anxiety-level symptoms in patients with major depressive episode and dysthymia, seems of special relevance when assessing suicide risk.

Adolescent↗