To what extent do social support and mastery mediate the association between childhood maltreatment and depression? A sequential causal mediation analysis

AIMS

This study aimed to examine the independent roles of various childhood maltreatment (CM) subtypes in the development of depression; quantify the joint mediation effect of social support and mastery in the association between subtypes of CM and depression and examine the additional contribution of mastery beyond the effect that is operating through social support to this relationship.

METHODS

Data analysed were from the Zone d'Épidémiologie Psychiatrique du Sud-Ouest de Montréal, an ongoing longitudinal population-based study. In total, 1351 participants with complete information on the studied variables were included. The propensity score matching and inverse-probability weighted regression adjustment estimation methods were used to minimise the potential confounding in the relationship between CM and major depression. We then used inverse odds ratio-weighted estimation to estimate the direct effects of maltreatment and indirect effects of social support and mastery.

RESULTS

We found that exposures to all maltreatment subtypes increased the risk of subsequent depression. The joint mediating effect of social support and mastery explained 37.63-46.97% of the association between different maltreatment subtypes and depression. The contribution of these two mediators differed by maltreatment subtypes, with social support being the major contributor to the mediating effect.

CONCLUSIONS

The findings of the study not only provide scientific evidence on the importance of psychosocial attributes in the development of major depression but also suggest that prevention and invention strategies should focus on these psychosocial attributes to effectively break the vicious cycle of CM on major depression.

Muir-Torre syndrome: a case of unusual coexisting genetic mutations

Muir-Torre syndrome (MTS) is a rare autosomal dominant geno-dermatosis that was independently described by Muir in 1967 and Torre in 1968. MTS is a phenotypic subtype of Lynch syndrome and most commonly arises due to germline mutations in mismatch repair genes. MTS manifests with at least one cutaneous neoplasm and one visceral malignancy.

Coping strategies and distress reduction in psychological well-being? A structural equation modelling analysis using a national population sample

BACKGROUND

Little is understood about of the role of coping strategies in psychological well-being (PWB) and distress for the general population and different physical and psychiatric disease groups. A thorough examination of these relationships may provide evidence for the implementation of public mental health promotion and psychiatric disease prevention strategies aimed at improving the use of positive coping approaches or addressing the causes and maintainers of distress. The present study using a structural equation modelling (SEM) approach and nationally representative data on the Canadian population investigates the relationships among PWB, distress and coping strategies and identifies major factors related to PWB for both the general population and diverse-specific disease groups.

METHODS

Data examined were from the Canadian Community Health Survey of Mental Health and Well-being (CCHS 1.2), a large national survey (n = 36 984). We applied exploratory factor analysis (EFA), confirmatory factor analysis and SEM to build structural relationships among PWB, distress and coping strategies in the general population.

RESULTS

Both SEM measurement and structure models provided a good fit. Distress was positively related to negative coping and negatively related to positive coping. Positive coping indicated a higher level of PWB, whereas negative coping was associated with a lower level of PWB. PWB was negatively related to distress. These same relationships were also found in the population subgroups. For the population with diseases (both physical and psychiatric diseases, except agoraphobia), distress was the more important factor determining subjective PWB than the person's coping strategies, whereas, negative coping had a major impact on distress in the general population. Strengths and limitations were also discussed.

CONCLUSIONS

Our findings have practical implications for public psychiatric disease intervention and mental health promotion. As previously noted positive/adaptive coping increased the level of PWB, whereas negative/maladaptive coping was positively related to distress and negatively related to PWB. Distress decreased the level of PWB. Our findings identified major correlates of PWB in both the general population and population subgroups. Our results provide evidence for the differential use of intervention tactics among different target audiences. In order to improve the mental health of the general population public mental health promotion should focus on strategies that reduce negative coping at a population level, whereas clinicians treating individual clients should make the reduction of distress their primary target to maintain or improve patients' PWB.

Maltreatment in childhood substantially increases the risk of adult depression and anxiety in prospective cohort studies: systematic review, meta-analysis, and proportional attributable fractions

BACKGROUND

Literature supports a strong relationship between childhood maltreatment and mental illness but most studies reviewed are cross-sectional and/or use recall to assess maltreatment and are thus prone to temporality and recall bias. Research on the potential prospective impact of maltreatment reduction on the incidence of psychiatric disorders is scarce.

METHOD

Electronic databases and grey literature from 1990 to 2014 were searched for English-language cohort studies with criteria for depression and/or anxiety and non-recall measurement of childhood maltreatment. Systematic review with meta-analysis synthesized the results. Study quality, heterogeneity, and publication bias were examined. Initial screening of titles and abstracts resulted in 199 papers being reviewed. Eight high-quality articles met eligibility criteria. Population attributable fractions (PAFs) estimated potential preventive impact.

RESULTS

The pooled odds ratio (OR) between any type of maltreatment and depression was 2.03 [95% confidence interval (CI) 1.37-3.01] and 2.70 (95% CI 2.10-3.47) for anxiety. For specific types of maltreatment and depression or anxiety disorders, the ORs were: physical abuse (OR 2.00, 95% CI 1.25-3.19), sexual abuse (OR 2.66, 95% CI 1.88-3.75), and neglect (OR 1.74, 95% CI 1.35-2.23). PAFs suggest that over one-half of global depression and anxiety cases are potentially attributable to self-reported childhood maltreatment. A 10-25% reduction in maltreatment could potentially prevent 31.4-80.3 million depression and anxiety cases worldwide.

CONCLUSION

This review provides robust evidence of childhood maltreatment increasing the risk for depression and anxiety, and reinforces the need for effective programs and policies to reduce its occurrence.

Prevalence and patterns of multimorbidity in northeastern China: a cross-sectional study

OBJECTIVES

Information on multimorbidity in the general populations of developing countries is lacking. We examine the prevalence and patterns of multimorbidity in northeastern China.

STUDY DESIGN

A cross-sectional study was conducted on adult residents in Jilin Province, northeastern China from June 2012 to August 2012.

METHODS

Data were collected from a large cross-sectional study (n = 21,435) of adult community residents in Jilin Province in northeastern China. Multimorbidity, or co-morbidity, was defined as having two or more of 18 specified prevalent chronic diseases. A range of demographics, socio-economic factors, other risk factors and general mental health were used in describing the distribution of multimorbidity and in exploring the associations between them.

RESULTS

Almost a quarter (24.7%) of the adults were found to be multimorbid for chronic diseases. Multimorbidity was more common among older adults, women, rural residents and those with low income. Smoking, increasing BMI and psychological distress were independently associated with multimorbidity. Multimorbid patients were frequent users of primary care. Most dyads of chronic diseases co-occurred more frequently than would be expected on the basis of chance.

CONCLUSIONS

Researchers, clinicians and policy makers need to pay special attention to the health care challenges of multimorbidity and develop effective intervention strategies and programs to reduce the burden of multimorbidity.

Phyllodes tumours of the breast: radiological presentation, management and follow-up

OBJECTIVE

Phyllodes tumours (PTs) are rare neoplasms accounting for <1% of breast lesions. With increased breast awareness and screening programmes, smaller PTs are being detected. The purpose of this study was to determine the clinical, radiological and pathological presentation of PTs and to evaluate the role of imaging follow-up, for which there are no specific guidelines.

METHODS

A retrospective study of all patients diagnosed with PT in a symptomatic unit between January 2006 and March 2013 was carried out. Patients were identified using breast care and electronic patient record databases.

RESULTS

53 patients with 54 lesions were diagnosed as having a PT. The median age was 27.5, 35.0 and 38.5 years for benign, borderline and malignant PT, respectively. Borderline and malignant PTs were larger than benign PTs, with mean sizes of 33 and 42 mm compared with 29 mm. 38% of PTs were labelled by the reporting radiologist as fibroadenomas, including two borderline PTs and one malignant PT. In 24% of cases, the radiologist raised the possibility of PT in the report. 17 patients (40%) developed a new fibroepithelial breast lesion during follow-up of which 4 were recurrent PTs.

CONCLUSION

Despite adequate surgical management, the development of further fibroepithelial lesions in the ipsilateral breast is common. 3-year clinical surveillance, with the addition of 6-monthly ultrasound is advised for females with initial borderline or malignant PT histology.

ADVANCES IN KNOWLEDGE

We propose a follow-up protocol with ultrasound based on the grade of the PT diagnosed for 3 years to detect recurrence.

Adolescence, stress, and psychological well-being

The present study analyzes the mental-health consequences of stress in a sample of 1,038 adolescents (526 females and 512 males) from a Canadian prairie city. The study examined the relationship between perceived stress in family, school, and peer-group situations and four measures of psychological well-being, i.e., anxiety, depression, social dysfunction, and anergia. The moderator effects of locus of control orientation (mastery) on stress-outcome relationships were also examined, as were the sex differences in health and the perception of stress. All three sources of stress were found to be related to the four measures of mental health, with family stress having the strongest negative health impact. The health-protective role of locus of control was limited for the large part to the stresses emanating from school and peer groups. Substantial sex differences were found in the perception of family- and peer-related stresses as well as in levels of psychological distress. A tentative explanation of these differences was examined with reference to prevailing structural conditions and differences in locus of control orientation, with female adolescents showing greater externality. Implications of the results are drawn for the long-standing debate on the relative impact of stress and its sources on adolescents' psychosocial development and for a current controversy in adolescent theory between proponents of "classical" and proponents of "empirical" conceptions of adolescence.

[A case-control study on green tea consumption and the risk of adult leukemia]

OBJECTIVE

To investigate whether green tea consumption can reduce the risk of adult leukemia.

METHODS

A hospital-based matched case-control study was conducted in 2005 - 2006. We recruited 107 confirmed leukemia cases and 110 inpatient controls with orthopedic disease without leukemia or other malignancy matched on gender, age and hospitals that patients stayed. Related information were gathered on quantity, duration and frequency of tea consumption, demographic characteristics, exposure to radiation and occupational hazards, medications, using a validated questionnaire by face-to-face interview. Univariate and multivariate unconditional logistic regression analysis were used to estimate odds ratios (ORs) and associated 95% confidence intervals (CIs) with SPSS 11.5 software.

RESULTS

Compared with non-tea-drinkers, the OR of those who consumed green tea was 0.58 (95% CI:0.34-1.00, P< 0.05) under univariate statistical analysis. The OR was 0.52 ( 95% CI: 0.28- 0.98, P = 0.04), using logistic regression to count for age, gender, residential area, smoking, level of education, exposure to radiation, benzene and organo-phosphorus. Compared with non-drinkers, the risk of adult leukemia declined with increasing quantity, duration, and frequency of green tea consumption. Tests for trend on dose-response was statistically significant (P < 0.01).

CONCLUSION

A higher consumption of green tea seemed to be associated with a declined risk of adult leukemia. Tea consumption might be of help to human health planning projects.

Work stress and physical assault of nursing aides in rural nursing homes with and without dementia special care units

PURPOSE

This study compared nursing aides (NAs) employed in rural nursing homes with and without dementia special care units (SCUs) on (1) exposure to and distress from disruptive behaviours exhibited by residents, (2) job strain and (3) physical assault.

DESIGN AND METHODS

The data were drawn from a larger study conducted in Saskatchewan, Canada, in which all rural nursing homes of < or = 100 beds that had an SCU were matched to same-sized rural facilities with no SCU. Nursing aides (n = 355) completed a mailed survey questionnaire.

RESULTS

Nursing aides employed in nursing homes with an SCU reported significantly less frequent exposure to disruptive behaviours (including aggressive and aversive behaviours) than NAs in non-SCU facilities, less distress when these behaviours were directed toward them, less exposure to aggressive behaviour during caregiving, lower job demands and lower job strain. There was a trend toward increased risk of being assaulted in the last year associated with being in a non-SCU facility. Having a permanent position, increased job strain, and feeling inadequately prepared for dementia care were significantly associated with higher risk of being assaulted. In the SCU facilities, NAs who worked more time on the SCU reported more assaults but less distress from disruptive behaviour, lower psychological job demands, lower job strain and greater work autonomy.

IMPLICATIONS

Providing more dementia care training and reducing job demands and job strain may help to reduce work-related stress and physical assault of nursing aides employed in nursing homes.

The influence of attractiveness factors and distance to general practice surgeries by level of social disadvantage and global access in Perth, Western Australia

The impact on attendance of the distance to general practice surgeries, and the attributes offered by those surgeries, was investigated. One thousand and forty four subjects, selected at random from the metropolitan area of Perth, Western Australia, responded to a household interview survey concerning which attributes of general practice (GP) surgeries they found attractive and the identity of the surgery they preferred to attend. The sample was stratified by different levels of social disadvantage and by good and poor global levels of spatial accessibility of GP surgeries. In separate fieldwork, interviewers collected detailed environmental data from practice staff at 466 GP surgeries available to the community survey respondents within metropolitan Perth. Respondents living in areas of poor global access were more likely to attend their nearest surgery (25% vs. 6%) and to bypass fewer surgeries to attend a preferred surgery (median 2 vs. 20). Those who were most socially disadvantaged were less likely than those who were better off to bypass surgeries where global access was poor, but more likely to bypass nearby surgeries and to seek out a surgery that bulk billed in areas where global access was good. A number of attractiveness factors had an important influence on choice of surgery, including: 'easy to make an appointment'; 'generally sees patients on time'; 'pharmacy nearby'; 'bulk bills' and 'open at all on Sundays'. Respondents attending their nearest surgery were more likely to have all of their nominated 'very important' attributes satisfied at that surgery than non-attenders (40% vs. 16%). A logistic regression model, adjusting for distance effects and size of surgery, showed within each level of global access and social disadvantage a consistent increase in the odds of attending a surgery that satisfied the attributes desired by respondents.

A controlled trial of cognitive behavioral treatment of panic in alcoholic inpatients with comorbid panic disorder

Patients entering a 4-week inpatient alcoholism treatment program were screened for anxiety symptoms. Those with panic disorder with or without agoraphobia were randomly assigned to two groups. The treatment group received 12 hours of cognitive-behavioral treatment (CBT) for panic disorder in addition to the regular alcoholism treatment program: the control group received the regular program. Dropouts from the treatment group were also followed. Problem drinking and anxiety symptoms were measured at the start of the study, and at 3, 6, and 12 months posttreatment. Abstinence from drinking, and anxiety and mood symptoms improved after treatment in all of the groups; there were few differences in outcome between the groups. We concluded that this particular intervention had not been more effective than the regular alcohol treatment program in reducing problem drinking in those with panic disorder.

Physical abuse during pregnancy: prevalence and risk factors

BACKGROUND

Violence during pregnancy is a health and social problem that poses particular risks to the woman and her fetus. To address the lack of Canadian information on this issue, the authors studied the prevalence and predictors of physical abuse in a sample of pregnant women in Saskatoon.

METHODS

Of 728 women receiving prenatal services through the Saskatoon District public health system between Apr. 1, 1993, and Mar. 31, 1994, 605 gave informed consent to participate in the study and were interviewed in the second trimester. Of these, 543 were interviewed again late in the third trimester. During the initial interview, information was collected on the women's sociodemographic characteristics, the current pregnancy, health practices and psychosocial variables. The second interview focused on the women's experience of physical abuse during the pregnancy and during the preceding year, the demographic characteristics and the use of alcohol or illicit drugs by their male partner.

RESULTS

In all, 31 (5.7%) of the women reported experiencing physical abuse during pregnancy; 46 (8.5%) reported experiencing it within the 12 months preceding the second interview. Of the 31 women 20 (63.3%) reported that the perpetrator was her husband, boyfriend or ex-husband. Although all ethnic groups of women suffered abuse, aboriginal women were at greater risk than nonaboriginal women (adjusted odds ratio 2.8, 95% confidence interval [CI] 1.0-7.8). Women whose partner had a drinking problem were 3.4 times (95% CI 1.2-9.9) more likely to have been abused than women whose partner did not have a drinking problem. Perceived stress and number of negative life events in the preceding year were also predictors of abuse. Abused women tended to report having fewer people with whom they could talk about personal issues or get together; however, they reported socializing with a larger number of people in the month before the second interview than did the women who were not abused.

INTERPRETATION

Physical abuse affects a significant minority of pregnant women and is associated with stress, lack of perceived support and a partner with a drinking problem.

Assessing the validity of diagnostic information in administrative health care utilization data: experience in Saskatchewan

Administrative health care utilization databases have been promoted as resources for pharmacoepidemiologic research for several years, but the validity of the diagnostic data in many systems has not been thoroughly investigated. This work outlines issues in assessing the validity of diagnostic information from a broad perspective, using results from the datafiles of the province of Saskatchewan to illustrate them and, where possible, contrasting them with findings from other databases. An evaluation of the validity of health care utilization data should be more than a simple check of coding and data entry errors. Comparisons of data records with information external to the computer system, an examination of the internal consistency of the data (especially in systems consisting of several data sources) and, where practicable, an assessment of the cohesiveness of the data within the context of current medical knowledge should be performed on a broad range of diagnoses and procedures. Careful consideration should also be given to the generalizability of results from the database. Summaries of such evaluations for all databases used for population-health research purposes should be widely disseminated. We caution researchers to continue to seek ways to validate their results in each use of these databases.

Reliability of the recording of schizophrenia and depressive disorder in the Saskatchewan health care datafiles

Administrative data have long been used in psychiatric epidemiology and outcomes evaluation. This article examines the reliability of the recording of schizophrenia and depressive disorder in three Saskatchewan administrative health care utilization datafiles. Due to their comprehensive nature, these datafiles have been used in a wide range of epidemiologic studies. Close agreement was found between hospital computer data and patients' charts for personal and demographic factors (> or = 94.7%). Diagnostic concordance between computerized hospital data and medical charts was very good for schizophrenia (94%) but poor for depressive disorder (58%). Appropriate physician services were identified for 60% and 72% of hospital discharges for schizophrenia and depressive disorder, respectively, and exact diagnostic agreement between hospital and physician datafiles was 62% for schizophrenia and 66% for depressive disorder. Appropriate provincial mental health branch services were found for 83% and 38% of hospital discharges for schizophrenia and depressive disorder, respectively; exact diagnostic concordance between these datafiles was 75% for schizophrenia and 0% for depressive disorder. A significant number of patients with major or neurotic depression appeared to be wrongly coded as having depressive disorder in the hospital file. The differences in diagnostic agreement may also be partly a function of how the two conditions are differentially treated in the health system. These findings suggest that more specific and severe psychiatric diagnoses are likely to be recorded accurately and consistently in the Saskatchewan datafiles. However, disorders with multiple manifestations or those for which there are several possible codes should be examined with caution and ways sought to validate them. Attention should also be paid to which service sectors are involved in the treatment of specific disorders.

Letter and category fluency in community-dwelling Canadian seniors: a comparison of normal participants to those with dementia of the Alzheimer or vascular type

Measures of letter (FAS) and category (Animal Naming) fluency were completed by community-dwelling, cognitively normal seniors (n = 635), and by individuals diagnosed with dementia of the Alzheimer type (DAT) (n = 155), or with vascular dementia (n = 39). Among normal seniors, category, but not letter fluency, declined with age, females performed better than males on letter but not on category fluency, and performance increased with education on both tasks. Among participants with DAT, letter fluency was influenced by level of education, whereas category fluency was education-, age-, and gender-invariant. Both measures differentiated normal seniors from those with dementia. Category fluency was more impaired than letter fluency at both mild and moderate stages of dementia, but neither task differentiated DAT from vascular dementia.

Prevalence of movement disorders in institutionalized elderly

The proportion of the population over age 65 years is steadily increasing in Canada and the elderly who are unable to live independently are frequently institutionalized in chronic care facilities. We report our observations on movement disorders (MD) in an institutionalized elderly population of Saskatchewan. A representative sample of 67 subjects aged > or = 65 years had a detailed neurological evaluation on three separate occasions. MD were detected in 13 (19%) cases. The majority, 11 (16%), were females. Seven (10%) had essential tremor, 4 (6%) Parkinson's disease and 2 (3%) had drug-induced parkinsonism.

Prevalence of movement disorders in elderly community residents

We studied movement disorders (MD) in community residents of Saskatchewan aged > or = 65 years. A representative sample of 70 individuals had detailed neurological evaluation. Those who had definite and possible MD at first examination had a second neurological assessment by a senior neurologist. The most prevalent MD was essential tremor (ET) (14%) followed by Parkinson's disease (PD) (3%). The marked difference in prevalence ratios for PD and ET are attributed to: (a) higher incidence of ET in the general population; (b) a greater possibility that most, if not all, ET cases would reside in the community whereas a sizable proportion of elderly PD cases may be institutionalized, and (c) shortened survival in PD but a normal life expectancy in ET.

The prevalence of anxiety disorders among patients with mitral valve prolapse syndrome and chest pain

Nineteen patients from a cardiology practice with complaints of chest pain and with mitral valve prolapse syndrome were compared with 26 patients with chest pain but no discernible cardiac disorder. Instruments included a truncated form of the Diagnostic Interview Schedule, the symptom checklist 90 revised (SCL-90-R), the McGill Pain Questionnaire, and life events, physical activity, and family history questionnaires. Neither panic disorder nor self-rated anxiety were more common in the mitral valve prolapse group. This study failed to confirm the reported high association between mitral valve prolapse syndrome and panic disorder.

Longitudinal effect of amitriptyline and fluoxetine treatment on plasma phenylacetic acid concentrations in depression

Unconjugated (U-PAA), conjugated (C-PAA), and total phenylacetic acid (T-PAA) concentrations in blood plasma and monoamine oxidase (MAO) activity in platelets towards phenylethylamine (PE) were determined in 40 drug-free, depressed patients (23 melancholic, 17 nonmelancholic) from five psychiatric treatment centers, and in 34 normal healthy volunteers. No significant differences were found between controls and all depressed patients or between melancholic and nonmelancholic depressed patients. Treatment of the depressed patients with amitriptyline or fluoxetine over a 6-week period resulted in clinical improvement and in a significant increase in plasma PAA concentrations. A decline in the Beck and Hamilton rating scores during treatment correlated significantly with increases in the concentrations of unconjugated, conjugated, and total phenylacetic acid but not with MAO activity, which did not change during treatment. At each of the three assessment times, however, plasma PAA concentrations and psychiatric rating scores were not significantly correlated. Except for higher end-of-study T-PAA concentrations in the amitriptyline-treated subjects, no significant differences were found between the effects of the two drugs with regard to plasma phenylacetic acid levels, MAO activity, or rating scores.

Deuterium-labelled p-tyramine challenge test and phenolsulfotransferase activity in depressed patients--failure to replicate decreased p-tyramine conjugation in depression

1. Depressed and normal subjects were challenged with deuterium-labelled p-tyramine and urine was collected for 3 h. 2. Urinary excretion of conjugated p-tyramine was not significantly different between normal, melancholic and non-melancholic depressed subjects. 3. Platelet phenolsulfotransferase activity to p-tyramine (p less than 0.05) and to phenol (p less than 0.005) were significantly lower in the depressed patients.

The relationship between agoraphobia, social phobia and blood-injury phobia in phobic and anxious-depressed patients

This paper reports the results of principal components and stepwise discriminant analyses of anxiety, depression and fear scores for 74 phobic and anxious-depressed psychiatric patients. Factor analysis indicated a coherent agoraphobia factor, with less coherent blood-injury and social phobia factors. Discriminant analysis showed a high degree of correct classification of diagnosed agoraphobic, blood-injury and social phobic patients particularly for agoraphobia. A frequency distribution of the phobia scores indicated an all or nothing quality to agoraphobic fears. The results indicate that agoraphobia is a fairly coherent syndrome, but that more work is needed on the concepts and measurement of blood-injury and social phobias.

Unemployment and health: an analysis of "Canada Health Survey" data

This paper provides a cross-sectional analysis of the physical and emotional well-being of employed and unemployed workers. The data used consists of a sub-sample (N = 14,313) drawn from the Canada Health Survey's national probability sample (N = 31,688). The analysis indicates substantial health differences between employed and unemployed individuals. The unemployed showed significantly higher levels of distress, greater short-term and long-term disability, reported a large number of health problems, had been patients more often, and used proportionately more health services. Consistent with these measures, derived from self-reported data, physician-diagnosed measures also indicate a greater vulnerability of unemployed individuals to serious physical ailments such as heart trouble, pain in heart and chest, high blood pressure, spells of faint-dizziness, bone-joint problems and hypertension. While these health differences between the employed and unemployed persisted across socio-economic and demographic conditions, further analysis indicated strong interaction effects of SES and demographic variables on the association of employment status with physical and emotional health. Females and older unemployed individuals reported more health problems and physician visits whereas the younger unemployed (under 40) reported more psychological distress. The blue-collar unemployed were found to be considerably more vulnerable to physical illness whereas the unemployed with professional background reported more psychological distress. The low-income unemployed who were also the principal family earners, were the most psychologically distressed. A regional look at the data showed that the low-income unemployed suffered the most in terms of depressed mood in each region of the country. It is apparent that unemployment and its health impact reflect the wider class-based inequalities of advanced industrial societies. The need for social policies that effectively reduce unemployment and the detrimental impact of unemployment is clear.

Psychological distress among Canadian adolescents

This paper examines a comprehensive set of data on the prevalence and correlates of psychological distress in a sample of 1038 adolescent students in a major urban area of a Canadian prairie province. About 27% of the students reported 6 or more symptoms of psychological distress on the GHQ-30. The frequency of symptoms varied with age, grade level and average marks, with sex being the most significant variation. 'Anxiety' and 'social dysfunction' were the most frequent symptom dimensions reported. More detailed analysis of possible predictors of mental health showed that the nature and quality of family life strongly affected adolescent mental health. Adolescents' positive evaluation of their school atmosphere and peer group life and their locus of control orientation also positively influenced their psychological well-being.

Types of depression in alcoholic patients

Standardized clinical interviews of 48 alcoholic patients consecutively admitted to an alcoholism treatment program revealed that 22 (46%) had suffered major depressive episodes. However, only two had the typical depressed affect at the time of the interview. Cyclic mood swings, panic attacks and hypomania were common, indicating that this was a heterogeneous group of depressed patients. The alcoholism tended to precede the onset of depression, which was then followed by the seeking of help, but the whole sequence developed over a few years, when the patients were in their early 20s. The depressed patients had more psychiatric, marital and legal difficulties than the nondepressed patients. There is a need for better definitions of affective disorders in alcoholic patients.

Alcoholism, anxiety disorders, and agoraphobia

A group of 48 inpatient alcoholics were studied using the Schedule for Affective Disorders and Schizophrenia--Life-time Version (SADS-L) and the Brief Standard Self-rating for Phobic Patients. Approximately one-quarter of the patients were diagnosed as suffering from agoraphobia and social and mixed phobias. Approximately 44% were diagnosed as suffering from anxiety disorders and 46% had suffered from an episode of major depression. Data from the self-rating questionnaire were consistent with the diagnostic data. The alcoholics with phobias had experienced more severe dysphoric feelings than nonphobic alcoholics with other psychiatric disorders.

Social support and mental health: direct, protective and compensatory effects

This study deals with the relationship between social support and mental health. This relationship was conceptualized as a multi-faceted one which may be understood in terms of direct (main), protective (buffering) and compensatory effects. Hypotheses relating to these effects were evaluated in terms of spousal/community support and job strains (pressure, autonomy, opportunities) among a sample of 455 married males who were employed on a full-time basis. Results indicated that spousal support generally had more important implications for psychological well-being than did community support. However, the relative impact of these different sources of support appeared to be related to the degree to which the mental health symptomology reported was affectively defined. With respect to protective effects, spousal support was found to moderate the relationship between certain job strains (pressure) and mental health. No protective effects were found for community support. Tests of the hypothesis that community support compensates for low levels of spousal support were made in terms of both direct and protective effects. No direct effect compensation was observed. However, protective effect compensation was observed for certain job strains (opportunities) and was relevant to a wide range of symptomology. The overall results suggest a primary/secondary hierarchy of supports and strains in which primary supports (e.g. spousal) assume a protective function with respect to secondary strains (e.g. job) while secondary supports (e.g. community) do not protect individuals from primary strains (e.g. spousal). Secondary supports have a protective function for secondary strains in the absence of primary supports. It is further suggested that sex roles may be important determinants of the availability and use of different support sources.

Alcohol and drug dependency in Saskatchewan, 1969-1974

The demographic characteristics and the trends in health care utilization of alcohol- and drug-dependent residents of the Canadian province of Saskatchewan from 1969 to 1974 are examined.

Prevalence and correlates of nonpsychotic psychiatric symptoms in the general population

This paper reports on the results of a large scale mail questionnaire survey of the prevalence, as well as some social/psychological correlates, of nonpsychotic psychiatric symptoms in the general population of the Province of Saskatchewan. The level of nonpsychotic psychiatric symptoms was measured using the 30-item General Health Questionnaire (GHQ) developed by Goldberg. The respondent group (2000+, 53% of the available sample) was reasonably representative of the provincial population and forms a good basis for generalization.

Data analysis shows that women report a higher level of symptoms than men. There were also significant age variations:for women there was a general decline in mean scores from younger to older age categories with the possible exception of the oldest age group, over 70, in which we see a slight increase; for men, there was a pronounced U-shaped distribution with both younger and older age groups exhibiting high levels of symptomatology. In addition to age and sex, general health, relationships with spouse and others, and a sense of control over one's life experiences were found to be correlated with symptom reporting, underscoring the negative effects of ill health and the inequities in social systems as well as the positive value of good interpersonal relationships.

Saskatchewan symptom reporting levels were found to be similar to those reported in Australian and British population samples. These other studies also showed higher levels of symptom reporting infernales than in males.

The GHQ data were also factor analyzed to reveal sets or clusters of symptoms. The analysis showed that “anxiety” and “depression” were the major dimensions of the GHQ lending credence to the suggestion that psychiatric screening scales tend to measure “de-morale-ization,” that is, anxiety, sadness, helplessness/hopelessness and a lack of self-esteem.

Comparisons: Indian and non-Indian use of psychiatric services

Major differences were found between the Saskatchewan Indian and non-Indian populations in regard to the prevalence of psychiatric disorders, their rates of treatment and the mix of inpatient and outpatient services they receive. Diagnostic and treatment differences between the two populations were more pronounced in the "private" in relation to demographic, socioeconomic and cultural differences between Indian and non-Indian populations and to size and organizational differences between the "public" and "private" treatment sectors.

Psychiatric health care and costs under comprehensive public health insurance: experience in a Canadian province

Psychiatric service delivery was studied over a 6-year period in the Province of Saskatchewan, which has had comprehensive universal medical insurance since 1962. That experience is relevant to current issues of costs and quality of care, methods of financial reimbursement and organization of service delivery. A unique patient-centered data base permitted the examination of significant differences between the private and public service delivery sectors in volumes and types of patients treated as well as treatment costs. A dominant picture emerged of distinct types of patients that differ significantly in terms of severity and duration of illness, as well as in the amount of resources they consume. Their differing needs for intervention and prevention should be taken into account in mental health care planning.

A mental health system in transition: profiles of change

These profiles of the changing Saskatchewan mental health system reveal that there have been increases in the number of admissions, readmissions, discharges, and outpatients in both the public and private sectors. Divergent patterns in the utilization of services in the public sector occur among the Indian and non-Indian populations. Over the past several decades there have been considerable changes in the types of psychiatric problems treated in the psychiatric care system. The social, demographic and admission characteristics of the people receiving treatment in the system have changed substantially. The data presented here imply that the status of mental illness is not solely a function of a physical or psychiatric condition but has elastic features capable of being expanded or restricted by the prevailing organizational structure which has evolved to handle the "problem" of mental illness. The advent of community psychiatry plus attendant changes in the health system has altered the nature of mental illness treated in the province. Consequently, concerns about ways of evaluating the effectiveness of current programs, of choosing between alternate service delivery systems, of establishing criteria for equitable resource allocation, and of understanding the forces for change need to be raised and explicitly dealt with.

Sex differences in the utilization of health services for psychiatric problems in Saskatchewan

Comprehensive data on all pscyhiatric patients in Saskatchewan show that women are substantially higher users of health services for psychiatric problems than are men. Women: 1) use up to twice as many services as men in the private sector, but use almost the same number of public sector services; 2) tend to be treated for psychosomatic and neurotic disorders on an outpatient basis; 3) have only a slightly greater chance than men of being hospitalized; and 4) are less likely than men to have organic or addictive diagnoses. These differentials in utilization cannot be explained by age, diagnoses and/or marital status. Sex is the best predictor of utilization. These results are largely consistent with utilization and epidemiological literature. It seems more likely that these sex differences in utilization result from the interaction of biology, sex roles, and the functioning and labelling processes of the health system rather than from any single factor. Combining Andersen's components of health behaviour with Freidson's lay-professional construction of illness continuum yields a possible framework for understanding sex differences in the utilization of psychiatric health services.

Patterns in the delivery of psychiatric care in Saskatchewan 1971-1972: part III. Patient socio-demographic and medical characteristics

This paper is one of several examining he variety of patterns in the delivery of psychiatric health care in the Province of Saskatchewan during 1971 and 1972. Previous papers dealt with an overview of service sectors, patient volumes, types of contacts and some patients career characteristics. This paper deals with sociodemographic and medical characteristics of patients treated in the various sectors of the psychiatric care delivery system in Saskatchewan.

The private and public psychiatric care delivery systems deal with essentially separate psychiatric populations. These differ in volume, in type of psychiatric disorder, in socio-demographic characteristics and in patient career characteristics. The “private” sector saw proportionately more females in the 20-39 year age group, whereas the public sector saw proportionately more males and females in the 0-19 year age category. The “private” sector also treated more people in rural, village and town areas whereas the public sector appeared to be more city-based. General practitioners were more active in rural and small towns, while psychiatrists tended to be more active in the larger urban areas. This reflects the general practitioner's role as a primary health care source. The vast majority of private sector patients were seen for neurotic and psychosomatic disorders. The public sector patients included those treated for the more intractable schizophrenic, organic, affective, and neurotic depression diagnoses.

Comparative data on both the private and public sectors show considerable increases in the volume of services being delivered. Previous data demonstrate a relatively strong relationship between availability of psychiatric services and utilization rates within a region. It would appear that the presence of a psychiatric inpatient facility serves an educative function and increases the volume of general practitioner treatment for psychiatric problems.

The present data indicate that the majority of persons seen for psychiatric reasons by medical practitioners in Saskatchewan suffer from relatively minor psychiatric ailments. Therefore, we must question the suitability of the present service delivery system. Is there a need to screen out “medical problems” from “problems of living” which may be better treated by non-medically-oriented counselling services, thus freeing some of the medically-skilled manpower to focus on better and more comprehensive care for the more intractable mental disorders?

Patterns in the delivery of psychiatric care in Saskatchewan 1971-1972 (II). Types of contacts and some patient career characteristics

A previous paper dealt with an overview of service sectors and patient volumes (2), whereas this one concentrates on types of contacts and some patient career characteristics. Analysis of a comprehensive psychiatric care utilization data file for Saskatchewan for the 1971-1972 period shows that 'public' sector patients were hospitalized for a greater average length of time than were 'private' sector patients. This may reflect differences in the styles of practice, exigencies of the demand for hospital beds in the 'private' as opposed to the 'public' sector and/or intrinsic differences in the nature of the problem treated in each sector. Some interesting facts regarding patterns of contact were uncovered. The bimodal nature of the 'psychiatric population' was further evident from the data which show that the majority of patients used relatively few services whereas a few used a large number of services. This suggests that the majority of the people seen for psychiatric reasons by medical practitioners were suffering from relatively minor psychiatric disorders. Heavy users of services were much more likely to have had some'public' or University Hospital-based contact. Conversely, light users were predominantly private sector patients. In the 'public' sector, those who had had some in patient treatment were consistently higher users of all services. It is evident that psychiatrists held a dominant position in this community-oriented public sector, having seen a large number of patients, but having had a low average rate of services per patient. In contrast, community nurses saw relatively few patients but saw them very often. This no doubt reflects their role in providing 'maintenance' services to chronic patients in approved homes in the community. In the 'private' sector, 69 percent of the services were delivered by GPs and 23 percent by psychiatrists were more likely to have had 'public' sector activity than were those seen only by GPs; also once in the 'public' sector, they were likelier to have had in patient as well as outpatient treatment. This suggests a 'sifting' of the more "difficult" patients through the private specialist sector into the public sector.

Patterns in the delivery of psychiatric care in Saskatchewan 1971-72: an overview of service sectors and patient volumes

For the purpose of examining patterns in the delivery of psychiatric services in the province of Saskatchewan during 1971 and 1972, a research data file was created containing data on all persons who had received medical treatment for explicitly psychiatric disorders: from PSB; from a physician paid on a fee-for-service basis under MCIC; and/or in a provincial general hospital. The resulting data file provides a history of the psychiatric care utilization behaviour of all patients who have been treated for a psychiatric illness in the province during the period January 1st, 1971 to December 31st, 1972, irrespective of the facilities in which this treatment was delivered. This data file, since it has keyed on explicitly psychiatric diagnoses and on diagnoses rather than type of service delivered, will give conservative estimates on the number of patients and patterns of contacts.

During the two-year period a total of 123,099 received some form of psychiatric treatment. There were six times as many patients seen by fee-for-service physicians as by the ‘public’ sector. In both sectors the majority of patients were seen on an outpatient basis. Patients in the ‘private’ sector were usually seen by general practitioners. There appear to be two relatively autonomous sectors involved in the delivery of psychiatric care to different population segments.

There was also a significant ‘turnover’ in the provincial psychiatric population, with patients receiving treatment in one year but not in the other.

The data could be interpreted to suggest that the majority of persons seen for psychiatric reasons by medical practitioners are suffering from relatively minor psychiatric ailments. This raises the whole question of the suitability of the service delivery system and the question of manpower substitution. Alternatively, it could be argued that these data, both the large number of outpatients and the considerable yearly turnover in the provincial psychiatric population, indicate that psychiatric problems are now essentially amenable to treatment.