Obtaining a family psychiatric history: is it worth the effort?

[Family history of affective disorders, the gender factor and clinical characteristics of depression]

OBJECTIVE

Analysis of clinical features of development and course of depression in patients with FH of mood disorders taking into account sex differences.

MATERIAL AND METHODS

This multicenter cross-sectional study included patients over 18 years of age with depressive episode/recurrent depressive disorder. Clinical characteristics of depression, presence of comorbid mental illness and family history (FH) information were obtained in a structured clinical interview.

RESULTS

One hundred and seventy-one patients (mean age (M (SD)) 40.87 (15.86) y.o.), including 64.5% of women, were enrolled in the study. FH was revealed in 30.2% of patients. The proportion of FH did not differ in men and women (p=0.375). Generalized anxiety disorder (GAD) was more frequent in FH positive patients (p=0.016). Logistic regression also revealed that FH is a risk factor for concomitant GAD (p=0.019, OR=2.4). The GLM demonstrated a significant joint effect of FH and sex on the maximum duration of a depressive episode (p=0.044), as well on the number of suicide attempts (p=0.055) and the number of depressive episodes as a trend (p=0.072).

CONCLUSION

We have demonstrated the specific interaction of FH of mood disorders with sex on clinical course of depression. Thus, the manifestation of a genetic influence on the clinical phenotype of depression can be significantly moderated by sex.

Measuring and Quantifying Collateral Information in Psychiatry: Development and Preliminary Validation of the McLean Collateral Information and Clinical Actionability Scale

BACKGROUND

The review of collateral information is an essential component of patient care. Although this is standard practice, minimal research has been done to quantify collateral information collection and to understand how collateral information translates to clinical decision making. To address this, we developed and piloted a novel measure (the McLean Collateral Information and Clinical Actionability Scale [M-CICAS]) to evaluate the types and number of collateral sources viewed and the resulting actions made in a psychiatric setting.

OBJECTIVE

This study aims to test the feasibility of the M-CICAS, validate this measure against clinician notes via medical records, and evaluate whether reviewing a higher volume of collateral sources is associated with more clinical actions taken.

METHODS

For the M-CICAS, we developed a three-part instrument, focusing on measuring collateral sources reviewed, clinical actions taken, and shared decision making between the clinician and patient. To determine feasibility and preliminary validity, we piloted this measure among clinicians providing psychotherapy at McLean Hospital. These clinicians (n=7) completed the M-CICAS after individual clinical sessions with 89 distinct patient encounters. Scales were completed by clinicians only once for each patient during routine follow-up visits. After clinicians completed these scales, researchers conducted chart reviews by completing the M-CICAS using only the clinician's corresponding note from that session. For the analyses, we generated summary scores for the number of collateral sources and clinical actions for each encounter. We examined Pearson correlation coefficients to assess interrater reliability between clinicians and chart reviewers, and simple univariate regression modeling followed by multilevel mixed effects regression modeling to test the relationship between collateral information accessed and clinical actions taken.

RESULTS

The study staff had high interrater reliability on the M-CICAS for the sources reviewed (r=0.98; P<.001) and actions taken (r=0.97; P<.001). Clinician and study staff ratings were moderately correlated and statistically significant on the M-CICAS summary scores for the sources viewed (r=0.24, P=.02 and r=0.25, P=.02, respectively). Univariate regression modeling with a two-tailed test demonstrated a significant association between collateral sources and clinical actions taken when clinicians completed the M-CICAS (β=.27; t₈₇=2.47; P=.02). The multilevel fixed slopes random intercepts model confirmed a significant association even when accounting for clinician differences (β=.23; t₅₇=2.13; P=.04).

CONCLUSIONS

This pilot study established the feasibility and preliminary validity of the M-CICAS in assessing collateral sources and clinical decision making in psychiatry. This study also indicated that reviewing more collateral sources may lead to an increased number of clinical actions following a session.

Familial bipolar disorder: preliminary results from the Otago Familial Bipolar Genetic Study

OBJECTIVE

This paper outlines the methodologies used, and preliminary descriptive data collected, on a cohort of familial bipolar disorder (BPD) probands and first-degree relatives taking part in a descriptive and genetic study into familial BPD in New Zealand.

METHOD

Fifty-five bipolar probands and 67 first-degree relatives were interviewed using the modified Diagnostic Interview for Genetic Studies (DIGS) and Family Interview for Genetic Studies (FIGS). Data was also collated from other sources. Blood samples were taken for DNA genomic analysis.

RESULTS

New Zealand families in which BPD segregates proved willing participants in this familial based genetic research. The methodologies used were acceptable. High rates of comorbidity were found in probands (27.3% met DSM-IV criteria for panic disorder/sub-threshold panic disorder; 12.7% for phobic disorder; 1.8% for obsessive-compulsive disorder; 9.1% for alcohol-related disorders and 7.3% for an eating disorder) and relatives (major depression 34.3%; panic disorder/sub-threshold panic disorder 12.0%; phobias 11.9% and alcohol-related disorders 11.9%). The polarity of index BPD illness was related to age of onset and frequency of comorbidity. Suicidal behaviour was common.

CONCLUSIONS

Psychiatric genetic research in New Zealand families is highly feasible. Emerging trends in the familial transmission of BPD include high rates of comorbidity, illness patterns based on polarity of index episode and frequent suicidal behaviour. Such trends will be delineated further as numbers accrue, perhaps enabling identification of more homogenous phenotypic subgroups than currently produced by diagnostic schemes.