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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The Zung self-rating depression scale (SDS) was applied to Japanese night shift workers of a railway company in order to assess the prevalence of depressive state and clarify the structural characteristics of the SDS questionnaire. Out of 2,394 employees, 1,931 male workers were engaged in night shift work and 1,274 men (66.0%) completely answered the questionnaire. The control group was selected from daytime workers. The average age of the subjects was 39.4. Cronbach's alpha coefficient of the night shift workers was 0.835 and that of the control was 0.848. SDS index decreased with age. The mild, moderate, and severe depressive state of night shift workers evaluated by SDS were 13.7%, 2.1%, and 0.6%, respectively. A two-way analysis of variance on SDS index examined age and shift work. Age influenced SDS index, but there was no interaction between the factors. Two factors were extracted by factor analysis. Factor 1 consisted of 8 positive items, accounting for 16.7%. Factor 2 consisted of 8 depressive items, accounting for 15.6%. The residual four items consisted of somatic or behavioral features. Mean value of SDS index by age, distribution of SDS index, and factor structure of SDS questions of the night shift workers were similar to those of the control group.
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PMID:Factor structure of self-rating depression scale by Zung and prevalence of depressive state of night shift workers. 160 27

The psychometric properties of a tinnitus handicap questionnaire are reported. There were two phases in this study. In Phase I, 87 questions were administered to 100 tinnitus patients. From their responses, 59 items that were either redundant, insensitive, or had low item-total correlations were eliminated. In Phase II, the resulting 27-item questionnaire was administered to 319 patients. Fifty-three of these patients also completed psychological and psychophysical measures that were used to validate the questionnaire. A factor analysis of patients' responses revealed a three-factor structure. These three factors appeared to reflect the physical, emotional, and social consequences of tinnitus (Factor 1), hearing ability of the patient (Factor 2), and the patients' view of tinnitus (Factor 3). Although the 27-item questionnaire had high internal consistency reliability and validity as reflected by correlations with life satisfaction and depression scales, it is recommended that only the items on the Factor 1 and the Factor 2 subscales be scored because of the low internal consistency reliability of the Factor 3 subscale. This questionnaire can be used to compare a patient's tinnitus handicap with the norm, identify specific areas of handicaps, and to monitor a patient's progress with particular treatment programs.
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PMID:The psychometric properties of a tinnitus handicap questionnaire. 207 77

The present study multivariately interrelated demographic and psychometric variables that have been extensively researched in the alcoholism literature. These variables included the essential-reactive continuum, degree of familial alcoholism, subjective distress, antisocial personality features and gender. Data were collected for 76 inpatients (56 male and 20 female) meeting DSM-III criteria for alcohol abuse/dependence. The mean age of the sample was 38.9 years and ranged in age from 18 to 69 years. Three factors with eigenvalues greater than 1 were extracted. Factor 1 was labeled Neuroticism, and measures of depression, anxiety, neuroticism and female gender had the highest loadings. Number of first-degree relatives with alcoholism, essential (early onset and greater severity) alcoholism and greater antisocial propensity had the highest loadings on Factor 2, labeled "Essential-Familial." The Extroversion scale of the Eysenck Personality Inventory and number of second-degree relatives with alcoholism loaded most highly on Factor 3, labeled "Extroversion." Theoretical and clinical implications associated with these dimensions of alcoholism and variously proposed alcoholic subtypes are discussed.
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PMID:Dimensions of alcoholism: a multivariate analysis. 229 54

The Dallas Pain Questionnaire (DPQ) was developed to assess the amount of chronic spinal pain that affects four aspects (daily and work-leisure activities, anxiety-depression, and social interest) of the patients' lives. Results of the DPQ's statistical properties suggest that the DPQ is an externally reliable instrument as well as internally consistent. Two factors emerged from factor structure analysis. Factor 1 represents functional activities and Factor 2 represents emotional capacities. A correlation analysis suggests the concurrent validity of the psychological functional factors of the DPQ. A t test demonstrated that chronic pain patients have significantly higher DPQ scores than normals. Because these findings support its statistical properties, the DPQ appears to have utility for clinical and research purposes. The findings, limitations, and implications of this study are detailed, as are suggestions for future research.
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PMID:The development of the Dallas Pain Questionnaire. An assessment of the impact of spinal pain on behavior. 252 90

The Zung self-rating depression scale (SDS) was applied to workers of a railway company. A total of 1,784 night-shift workers responded to the questionnaire and 1,394 daytime workers were set as the control group. The average age of the subjects was 39.9. The SDS index decreased with age. A factor analysis was conducted and two factors were obtained having an initial eigen value over 2.0. Factor 1 was the group of 8 positive items, accounting for 18.2%. Factor 2 was the group of 8 depressive items, accounting for 18.1%. Four items including "loss of weight," "constipation," "good appetite," and "partner coping" did not construct a distinct factor. The factor structure of SDS items of the night-shift workers was similar to those of the control group.
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PMID:Factor structure of Zung self-rating depression scale for workers. 841 87

A 13-item Self-critical Cognition scale was developed to measure a self-critical and self-defeating cognitive tendency in processing self-relevant information. The scale, administered to 561 male and female university students, evidenced high internal consistency (alpha = .89) and test-retest reliability of r138 = .83 over a 6.5-week interval. A factor analysis yielded a most interpretable 2-factor solution, Factor 1: negative self-processing and Factor 2: failure in positive self-processing. The scale's construct validity was supported by meaningful correlations of -.71 with Rosenberg's self-esteem, .43 with Watson and Friend's social anxiety and distress, .62 with Cheek and Buss's shyness, .57 with Watson and Friend's fear of negative evaluation, .42 with Beck and Beamesderfer's depression, and .34 with negative adjective counts in spontaneous adjective listing in a self-descriptive task. Use of the scale for experimental and clinical research is suggested.
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PMID:Development and validation of a self-critical cognition scale. 845 46

The factorial structure of the Beck Hopelessness Scale (BHS; A. T. Beck, A. Weissman, D. Lester, & L. Trexler, 1974) was examined in a nonclinical sample (N = 154) in Japan, and the relationships between dimensions of hopelessness and psychosocial variables were analyzed. A semistructured interview was used, as well as a questionnaire consisting of the BHS, the Eysenck Personality Questionnaire (EPQ; H. J. Eysenck & S. B. Eysenck, 1975), and the Parental Bonding Instrument (PBI; G. Parker, H. Tupling, & L. B. Brown, 1979). A factor analysis with principal components solution after oblimin rotation yielded 2 factors--Doubt About a Hopeful Future (Factor 1) and Belief About a Hopeless Future (Factor 2). Significant, positive correlations were found between Factor 2 and (a) the number of emotional symptoms of depression in a 4-day depressive episode and (b) scores on the Neuroticism subscale of the EPQ. The Factor 1 score was significantly and negatively correlated with the Extraversion subscale of the EPQ and the Paternal Care subscale of the PBI.
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PMID:Hopelessness in a community population: factorial structure and psychosocial correlates. 980 May 22

The Chalder fatigue scale is widely used to measure physical and mental fatigue in chronic fatigue syndrome patients, but the constructs of the scale have not been examined in this patient sample. We examined the constructs of the 14-item fatigue scale in a sample of 136 chronic fatigue syndrome patients through principal components analysis, followed by correlations with measures of subjective and objective cognitive performance, physiological measures of strength and functional work capacity, depression, anxiety, and subjective sleep difficulties. There were four factors of fatigue explaining 67% of the total variance. Factor 1 was correlated with subjective everyday cognitive difficulties, concentration difficulties, and a deficit in paired associate learning. Factor 2 was correlated with difficulties in maintaining sleep. Factor 3 was inversely correlated with grip strength, peak VO2, peak heart rate, and peak functional work capacity. Factor 4 was correlated with interview and self-rated measures of depression. The results support the validity of mental and physical fatigue subscales and the dropping of the "loss of interest" item in the 11-item version of the fatigue scale.
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PMID:Exploring the validity of the Chalder Fatigue scale in chronic fatigue syndrome. 983 34

The main purpose of the present study was to determine the relation between specific dissociative experiences (depersonalization, fantasies) and self-reported coping behavior in a clinical (depression, anxiety, schizophrenia) and nonclinical sample (normal adults). Dissociative experiences were assessed with the Questionnaire of Experiences of Dissociation (QED) of Riley (1988) and coping behavior with the Stress-Process Questionnaire (SPQ; Janke, Erdmann, & Boucsein, 1985). A factor analysis of the QED items revealed a two-factor extraction: Factor 1 "depersonalization" and Factor 2 "fantasies/daydreams." The clinical group scored higher on the QED factor "depersonalization" and had more passive forms of coping behavior (resignation, social isolation, self-compassion, self-blame) than the normal adults. Similar correlation patterns were found for both groups: The QED factor "depersonalization" correlated highly with the coping behaviors "resignation," "social isolation," "self-blame," "self-compassion," and "rumination." No correlation between Factor 2 "fantasies/daydreams" and the coping behavior was found. Finally, correlations between depersonalization, trait anxiety, and personal need for structure were reported.
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PMID:Depersonalization, fantasies, and coping behavior in clinical context. 1010 Aug 23

Individual-difference correlates of life success were studied using 302 participants aged 17-46 years (107 men, 195 women) and 31 individual-difference measures. Factor 1 (Relaxed Temperament) included Trait Pleasure-Displeasure (+), Anxiety (-), Depression (-), Optimism (+), Self-Esteem (+), Covert Index of Employee Reliability (+), and Functional Flexibility (-). Positively loading scales on Factor 2 (Arousable Temperament) were Trait Arousability, Emotional Empathy, Emotional Thinking, and Affiliative Tendency. Factor 3 (Disciplined Goal Orientation) included Delay of Gratification (+), Impulsivity (-), Procrastination (-), Patience (+), Integrity (+), Adaptive Coping (+), and Intelligence (+). Positively loading scales on Factor 4 (Dominant Temperament) were Trait Dominance-Submissiveness, Social Competence, Achieving Tendency, and Self-Actualization. Factors 1, 3, 4, and intelligence exhibited positive relations with all peer-rated criterion measures of life success. Trait Arousability, representing Factor 2, correlated negatively with relationship, physical, work, and overall success. Physical attractiveness correlated positively with all success measures except emotional success. When success measures were regressed against intelligence and personality scales or factors, intelligence did not account for variance beyond that explained by personality.
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PMID:Beyond IQ: broad-based measurement of individual success potential or "emotional intelligence". 1084 22


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