Psychosocial problems in adults with epilepsy: comparison of findings from four countries

Assessment of psychosocial adjustment in patients with temporal lobe epilepsy using a standard measure

Despite the growing evidence of poor psychosocial adjustment, at present there is no formal method of assessment of social adjustment in patients with temporal lobe epilepsy (TLE). First, we assessed social adjustment in patients with TLE using a self-report questionnaire and compared the results with those from quality-of-life (QOL) scales. Second, we verified the influence of cognitive performance and clinical variables of epilepsy on social adjustment and QOL. We evaluated 35 people with TLE and 38 healthy controls. Patients had worse social adjustment, and it was correlated with worse perception of cognitive function. Attention and verbal memory dysfunctions were negatively correlated with social adjustment. However, there was no significant correlation between cognitive performance and QOL. Regarding clinical variables, persons with left TLE showed worse social adjustment and patients with frequent seizures showed worse QOL. These findings indicate the relevance of evaluating social adjustment and emphasize the importance of cognitive rehabilitation to improved social adjustment.

Neuroepidemiology of epilepsy in northwest India

BACKROUND

Epilepsy has a complex etiology characterised by recurring seizures.

PURPOSE

To study clinical profile of epilepsy patients with reference to type of epilepsy in northwest India. No previous Indian study has reported relative incidence of various types of seizures with reference to type of epilepsy.

METHODS

Data of 400 epilepsy patients (200 idiopathic and 200 symptomatic) was collected for their clinical characteristics. The classification of epilepsy into idiopathic and symptomatic types was done on the basis of findings of EEG, CT scan and MRI tests.

RESULTS

The age of onset of seizures was less than 15 years in only one third of the total patients. The number of non-vegetarians was higher in SE (68.5%) than IE (58%). The male to female ratio was significantly higher (1.33:1 in IE and 1.47:1 in SE). No difference was seen for place of residence (urban vs rural) patients with epilepsy (PWE). The majority of patients (58.5% of symptomatic and 52.8% idiopathic) though reported no triggering factors, yet many of them, when questioned, had held supernatural powers to be the cause of the disease. Sleep deprivation was reported as a major triggering factor by 28.5% of idiopathic epilepsy (IE) and 25% of symptomatic epilepsy (SE) patients. The incidence of mental retardation (1.25%) and behavioral disorders (7%) was found to be relatively low. Loss of memory was reported in 46% of IE and 43.5% of SE and poor scholastic performance in 23% of IE and 16.5% of SE. A positive history was recorded in 11% first-degree relatives and 4% second-degree relatives. Generalized seizures were more common in IE patients (67.5%), while partial seizures with and without secondary generalization (50.5%), and generalized seizures (49.5%) were equally common in SE.

CONCLUSIONS

The study demonstrates differences in the type of seizures between idiopathic and symptomatic epilepsies and not other demographic, clinical and psycho-social traits. The males were found to have higher risk of epilepsy than females. The epidemiological characteristics of epileptics show variations across populations and also within population.

Long-term seizures and quality of life after epilepsy surgery compared with matched controls

OBJECTIVE

We compared long-term seizure outcome and health-related quality of life (HRQoL) of patients who underwent epilepsy surgery and matched medically treated nonsurgical controls with intractable epilepsy.

METHODS

Medically treated controls were identified for patients operated on for epilepsy between January 1, 1949 and December 31, 1992. We used a matched cohort design, matching for age, sex, and seizure type. The analysis was based on 70 complete matching pairs. HRQoL was assessed with the Quality of Life in Epilepsy Inventory 89 questionnaire an average of 15 years after surgery.

RESULTS

Among surgery patients, 48% were seizure-free during the previous year compared with 19% of the controls (P = 0.0004). Fewer surgery patients used antiepileptic drugs (70%) than controls (93%). The odds of being seizure-free were higher for surgery patients in total and in subgroups divided according to length of follow-up. The mean HRQoL for surgery patients was higher in five of the 17 Quality of Life in Epilepsy Inventory 89 dimensions and worse in none. Among patients with more than 7 years of follow-up, HRQoL was better in three dimensions and worse in none. Among patients with 7 years of follow-up or less, HRQoL was better in two dimensions and worse in the language dimension of the Quality of Life in Epilepsy Inventory 89.

CONCLUSION

After an average of more than 15 years of follow-up, epilepsy surgery patients had fewer seizures, used less antiepileptic medication, and had better HRQoL in several dimensions of the Quality of Life in Epilepsy Inventory 89 instrument than matched medically treated controls with refractory epilepsy, although possibly at a slight disadvantage in the language dimension among those with 7 years of follow-up or less.

Social functioning and psychological well-being of 347 young adults with epilepsy only--population-based, controlled study from Finland

PURPOSE

To explore social functioning and psychological well-being in a population-based cohort of epilepsy patients compared to matched controls.

METHODS

A random sample of patients with epilepsy (N = 347) and a healthy control group (N = 430) matched for age, gender and domicile were identified through National Registry of Social Insurance Institution in Finland. The data were collected by postal questionnaire assessing various factors related to social and psychological well-being and were analyzed by using linear regression analysis to compare the study and control groups.

RESULTS

The age at onset of epilepsy was significantly associated with the level of further education and the level of seizure control with the employment status. The patients with epilepsy and lower level of basic education had also significantly lower level of further education, employment, and fewer social relations. Some differences in psychological well-being were also seen in those with matriculation examination when compared to matched controls.

CONCLUSIONS

In young adults with well-controlled epilepsy and successful basic education, social functioning is comparable with healthy peers. The importance of all social and educational support during the time of basic education may be crucial to favorable intellectual, functional, and social development later in life. Both professional and informal support is needed in adjunct to conventional treament of epilepsy, which is emphasized.

Health related quality of life in adult patients with epilepsy compared with a general reference population in Taiwan

To compare the health-related quality of life (HRQL) for patients with epilepsy and health subjects, we collected the clinical and demographic data and information on health states by using the Taiwan version of World Health Organization quality of life (WHOQOL)-BREF questionnaire in 296 patients (aged 19-73 years) with confirmed active epilepsy visiting the clinic of National Taiwan University Hospital, and 296 age-, gender-, municipal- and education-matched Taiwanese healthy subjects sampled from a national health interview survey. Multiple regression analyses with stepwise selection strategy were conducted to study risk factors for impairment of HRQL. Patients with epilepsy have poorer HRQL than the healthy population in physical, psychological and social domains but not in environment domain (p<0.005). Patients with less than 4 attacks during the previous 1 month had a better score in the availability and quality of health and social care in environment domain than healthy subjects (p<0.05). After controlling other determinants, seizure frequency, and comobid with other diseases are the important factors in predicting HRQL for epilepsy patients. Patients with employment and married had a significantly better HRQL. Effective control of seizure frequency and thoughtful promotion of positive attitudes in community are essential to improve the HRQL of epilepsy patients.

Elementary school epilepsy survey (ESES): a new measure of elementary school students' knowledge and attitudes about epilepsy

OBJECTIVE

No peer-reviewed, published, psychometrically tested scales are available to assess elementary school students' general knowledge and attitudes about epilepsy. Such a scale is needed for evaluation of the effectiveness of classroom education programs. The purpose of this work was to develop and validate a brief, reliable scale for grades 4-6 to assess students' knowledge and attitudes about epilepsy and persons diagnosed with epilepsy.

METHODS

Development of the 22-item Elementary School Epilepsy Survey (ESES) followed standard protocol for scale development. It includes a 12-item Knowledge subscale and a 10-item Attitudes subscale. The ESES was administered during regular classroom time given and repeated 1 week later. No educational intervention took place.

RESULTS

Mean age of the 155 students was 11 years (range 9.8-13.9): grade 4, 56 students; grade 5, 36; and grade 6, 63 students. The ESES Total scale and Attitudes subscale had good internal consistency (Cronbach's alpha=0.72 and 0.81, respectively). As expected, the Knowledge subscale had low internal reliability (Cronbach's alpha=0.50). Test-retest scores indicated good reliability and strong discriminant validity, with significant increases noted in all ESES scores with increasing age and in those who knew someone with epilepsy.

CONCLUSION

The ESES detects developmental and experiential trends in students' knowledge and attitude about epilepsy. It has good internal consistency and test-retest reliability.

Psychosocial issues in people with epilepsy in Togo and Benin (West Africa) II: quality of life measured using the QOLIE-31 scale

PURPOSE

This study in Togo and Benin, West Africa, was aimed at measuring health-related quality of life (HRQOL) of people with epilepsy (PWE).

METHODS

It was a cross-sectional study among 281 adult PWE in Togo and 215 in Benin matched with the same number of controls without epilepsy, using the Quality Of Life in Epilepsy Scale-31 (QOLIE-31).

RESULTS

In Togo and Benin, controls had significantly better HRQOL (80.3+/-7.4, 72.2+/-12.7) than PWE (49.5+/-14.4, 52.1+/-33.4) according to the QOLIE-31 Overall score (P<0.0001). HRQOL was, in general, negatively correlated with a higher frequency of seizures and lack of treatment.

CONCLUSION

Results call for specific management of epilepsy in PWE in Togo and Benin to improve their HRQOL.

Psychometric Properties of the Dutch Version of the Washington Psychosocial Seizure Inventory

PURPOSE

The psychometric properties of the Dutch version of the Washington Psychosocial Seizure Inventory (WPSI) were investigated.

METHODS

The dimensional structure, reliability, and validity of the WPSI scales were assessed in 218 patients with epilepsy. The association with relevant patient and epilepsy characteristics also was studied.

RESULTS

An exploratory seven-factor principal components analysis was compared with a confirmatory factor analysis, and a loss of 3.36% of total variance was found. To increase the homogeneity of the scales, 30 items with low factor loadings or highest factor loading on the wrong clinical scale were excluded. This resulted in a higher amount of explained variance and improvement of the factor loadings of the remaining items. The reliability and validity of the WPSI scales was satisfactory to good. No clinically relevant associations were found between the WPSI scales and patient and epilepsy characteristics.

CONCLUSIONS

The factor structure, reliability, and validity of the Dutch translation of the WPSI are good and comparable to the original English version of Dodrill. The results demonstrate that shortening the WPSI makes the inventory more reliable and the clinical scales less dependent on each other.

Socioeconomic prognosis after a newly diagnosed unprovoked epileptic seizure in adults: a population-based case-control study

PURPOSE

To investigate the socioeconomic prognosis after a newly diagnosed unprovoked epileptic seizure in adults.

METHODS

Sixty-three patients 17 years or older with a newly diagnosed unprovoked epileptic seizure from 1985 through 1987 and 107 sex- and age- matched controls were followed up for 10 years to 1996. Studied variables were income, source of income, sickness periods, incapacity rate, diagnosis-specific incapacity rate, vocational status, and education.

RESULTS

Relative growth of income was similar between patients and controls during follow-up. Patients had lower income than did controls 2 years before seizure onset and during the entire follow-up. This was related to higher morbidity among patients, as measured by sickness periods and incapacity rate. Employment rates did not evolve negatively among patients after seizure onset and were close to employment rates of controls during follow-up time. There was no difference between patients and controls regarding education.

CONCLUSIONS

After a newly diagnosed unprovoked epileptic seizure in adults, no negative development regarding employment and education occurs. Income development is positive unless refractory seizures evolve. However, income is lower among patients with epilepsy than among controls, and this difference can be related to overall morbidity.

Impacto da epilepsia no trabalho: avaliação da qualidade de vida

Este estudo teve como objetivo reconhecer quais os fatores mais afetados na qualidade de vida (QV) de pacientes com epilepsia. Foram avaliados 134 sujeitos com diagnóstico de epilepsia, aleatoriamente selecionados no Ambulatório de Epilepsia do HC/UNICAMP, com idade entre 18 e 59 anos (M=35,38; DP=9,86), através do "Questionário de Qualidade de Vida 65". A maioria dos sujeitos possuía ensino fundamental incompleto (58,2%), não trabalhava (69,4%) e era solteiro (48,5%). O trabalho foi a área considerada mais prejudicada pela epilepsia (31,29%), o que reforça estudos que comprovam o alto índice de desemprego ou subemprego na população epiléptica e atenta para a importância da inserção no mercado de trabalho como um fator de integração social, econômica, e de realização pessoal.

Psychosocial adjustment of people with epilepsy in Hong Kong

PURPOSE

In light of the issues associated with the psychosocial adjustment of people with epilepsy that have been widely reported, this study examined these issues within a Chinese cultural context.

METHODS

Fifty patients with epilepsy completed The Washington Psychosocial Inventory, the Coping Inventory for Stressful Situations, and a questionnaire that assessed their psychosocial difficulties and coping styles. Multiple regression procedure was used to examine the strength of various medical and social factors in predicting the psychosocial adjustment problems of these participants.

RESULTS

Social factors, such as self-perception and coping strategies, were more powerful predictors of psychosocial adjustment in people with epilepsy than the medical factors associated with epilepsy.

CONCLUSIONS

These findings showed that psychosocial maladjustment is a significant issue for people with epilepsy in Hong Kong. The emerging importance of social factors as predictors of psychosocial adjustment in epilepsy, as compared with medical factors, highlights the need for developing tailored counseling therapy and social support groups for people with epilepsy.

Epilepsy in Estonia: a quality-of-life study

PURPOSE

To study the impact of epilepsy and its treatment on people with epilepsy in Estonia and to analyze how it is affected by the characteristics of epilepsy.

METHODS

Clinical and demographic data about patients were obtained from medical notes and mailed self-completed questionnaires (including the RAND 36-Items Health Survey 1.0 (RAND-36)).

RESULTS

Information was collected from 203 patients aged 20-74 years, who all had active epilepsy. A third of the respondents had been seizure free during the last year. Eighty-four percent were receiving monotherapy. More than half of respondents felt stigmatized by epilepsy, 24.7% of them highly so. A third were working full-time, 31.9% were underemployed workers, and 11%, unemployed. Sixty-two percent of these same unemployed or underemployed workers considered their epilepsy to be a significant reason for this situation. Overall, 44% believed they had been treated unfairly at work or when trying to get a job. Study respondents scored lower in all domains on the RAND-36 than did persons from the control group. The biggest differences were found in five domains: Social functioning, Role limitations-physical, Role limitations-emotional, General health, and Vitality.

CONCLUSIONS

The clinical characteristics of this study were similar to those of most other series of prevalence cases of epilepsy. The level of employment among persons with epilepsy was not lower than that in the general population. The percentage of stigmatization was high. There were significant differences in the way respondents scored on the stigma scale and on the RAND-36 domains when measuring their health status, depending above all on seizure frequency and type.

The impact of affectivity dispositions, self-efficacy and locus of control on psychosocial adjustment in patients with epilepsy

The main hypothesis of this study was that negative and positive affectivity, self-efficacy and health-related locus of control are important for psychosocial adjustment in patients with epilepsy. These dimensions are rarely examined directly in relation to the psychosocial adjustment in these patients. Correlations between measures of these constructs and measures of psychosocial adjustment in epilepsy were investigated. One hundred and one patients answered the Washington psychosocial seizure inventory (WPSI), the positive and negative affect schedule (PANAS-X), the multidimensional health locus of control scales (MHLC), the generalized self-efficacy scale and a scale measuring self-efficacy in epilepsy. Reliability analyses, correlational analyses and multiple stepwise regression analyses were performed. Negative affectivity (NA), positive affectivity (PA) and generalized self-efficacy showed high correlations with the WPSI scales emotional adjustment, overall psychosocial adjustment and quality of life. The epilepsy self-efficacy measures showed high, but lower correlations with the same WPSI scales. The MHLC scales showed low correlations with the WPSI scales. Multiple regression analyses showed that PA, NA and measures of self-efficacy explained more than 50% of the variances on emotional adjustment, overall psychosocial functioning and quality of life. In conclusion, positive and negative affectivity and self-efficacy are important predictors of perceived emotional adjustment, psychosocial adjustment and quality of life in patients with epilepsy. NA is the best predictor, but PA and self-efficacy measures give unique predictions independent of NA.

The health-related quality of life of patients with epilepsy compared with angina pectoris, rheumatoid arthritis, asthma and chronic obstructive pulmonary disease

The objective of this study was to compare the health-related quality of life (HRQL) of patients with epilepsy with populations suffering from different chronic diseases, using the short form 36 (SF-36) health profile measure. The populations to be compared were adult patients drawn from hospital based registers, with confirmed epilepsy (n = 397), angina pectoris (n = 785), rheumatoid arthritis (n = 1,030), asthma (n = 117) and chronic obstructive pulmonary disease (COPD) (n = 221). Health-related quality of life scores were compared using analysis of covariance (ANCOVA) for predicting mean scores adjusted for age, gender, education and comorbidity. Patients with epilepsy on average scored highest on all scales, reflecting that in our sample the majority had well-controlled epilepsy. Our results indicate that the HRQL of a representative sample of patients with epilepsy is good, when compared with other chronic disorders, although reduced in several dimensions compared with a general reference population. Patients with rheumatoid arthritis (RA) and COPD scored lowest on the physical function scales, while rheumatoid arthritis patients reported most pain.

Quality of life of patients with epilepsy (Hungarian survey)

We assessed the quality of life (QOL) of patients with epilepsy using the Quality of Life in Epilepsy Inventory (QOLIE-31). As the first step we compared our results with the data from an American survey in order to validate the test in Hungary. The results show that the Hungarian values were lower but that they followed the same trends as the American data. There was only one controversial result in the question-group of the 'the effects of treatment', which could be explained by the differences in habits and conventions, opportunities and expectations between Hungarian and American epileptic patients. We found significant differences in many aspects of quality of life with respect to (a) gender (general quality of life, seizure worry), (b) pharmacological treatment form (cognitive functions, medication effects, total score and social and role functioning) and (c) economic activity of patients (cognitive functions, emotional well-being, energy/fatigue, medication effects, overall quality of life, overall scores, seizure worry, social and role functioning). We have tried to explain the differences found by taking either the characteristics of epilepsy or the social background of the epileptic patient into consideration. Based on previous knowledge we have tried to define the situations where the assessment of quality of life for people with epilepsy, may be beneficial to their core.

Psychosocial impact of epileptic seizures in a Dutch epilepsy population: a comparative Washington Psychosocial Seizure Inventory study

PURPOSE

The psychosocial functioning of epilepsy patients from the Netherlands was investigated and compared with results from other countries. The impact of epilepsy was also studied in two different groups of Dutch epilepsy patients, inpatients and outpatients.

METHODS

The Washington Psychosocial Seizure Inventory (WPSI) was used to study the psychosocial problems of 134 Dutch outpatients and 181 Dutch inpatients. WPSI profiles were compared with those from the former German Democratic Republic (West Germany), Finland, Canada, the United States, Chile, and Japan.

RESULTS

For the Dutch epilepsy patients, most of the psychosocial problems were experienced by inpatients; they had serious problems in emotional, interpersonal, and vocational adjustment, adjustment to seizures, and overall psychosocial functioning. Seizure-free outpatients, however, experienced significant problems only in the emotional adjustment area. Comparing the outcomes of various countries, Dutch outpatients and patients from West Germany and Finland experienced the least psychosocial difficulties, whereas epilepsy patients from Chile, Japan, and Canada have serious problems in most areas of psychosocial functioning.

CONCLUSIONS

Patients with epilepsy experience psychosocial problems, although the amount of psychosocial difficulties depends on the seizure frequency and the culture that patients live in.

Moderators of the effect of preoperative emotional adjustment on postoperative depression after surgery for temporal lobe epilepsy

PURPOSE

Other outcome measures besides seizure control must be considered when assessing the benefit of epilepsy surgery. We investigated the effect of preoperative psychosocial adjustment on postoperative depression in epilepsy patients followed up prospectively for 2 years after temporal lobectomy.

METHODS

The Washington Psychosocial Seizure Inventory (WPSI) evaluated psychosocial functioning; the Centre for Epidemiological Studies Depression Scale (CES-D) measured depression. Both were completed at baseline and follow-up.

RESULTS

Follow-up occurred in 39 temporal lobectomy patients at 2 years after surgery. Greatest improvement in depression scores was limited to patients with good seizure outcomes (seizure free, or marked reduction in seizure frequency), and seizure outcome was a significant predictor of postoperative depression. Despite this, preoperative scores on the emotional adjustment scale of the WPSI were most highly correlated with depression 2 years after surgery. To clarify this relation, moderated hierarchic regression suggested that good preoperative emotional adjustment (WPSI) was generally associated with less depression after surgery. Moreover, poorer preoperative adjustment combined with older age, generalized seizures, the finding of preoperative neurologic deficits, a family history of psychiatric illness, and/or a family history of seizures was related to higher depression scores 2 years after surgery.

CONCLUSIONS

Depression after temporal lobectomy is dependent on a complex interaction of variables and can have a significant effect on indices of postoperative adjustment. The WPSI emotional adjustment scale may help to predict which patients are likely to be chronically depressed after surgery.

Health status of people with epilepsy compared with a general reference population

PURPOSE

To study the impact of epilepsy in a representative sample of people with epilepsy and compare with a normal reference population.

METHODS

We collected clinical and demographic data and information on health status by using the Short Form 36 (SF-36) questionnaire in two populations: (a) 397 patients with confirmed epilepsy attending a county hospital during a 7-year period, and (b) 1,663 patients from a random sample representative of the entire national population.

RESULTS

The respondents with epilepsy had well-regulated disease and showed the characteristics of a community sample: 70% had had no seizures during the last year, and 80% used antiepileptic drugs (AEDs). On six of eight SF-36 scales, patients with epilepsy had lower scores than the normal reference population, and they were less likely to be married, employed, or a full-time student. Seizure-free patients with epilepsy had scores close to those of the normal reference population, with higher scores on the social functioning and mental health scales and lower on the role--emotional scale. There were no differences in health status scores between seizure-free patients using and not using AEDs.

CONCLUSIONS

Our results confirm that patients with well-regulated epilepsy have a health status at the level of a general reference population.

Cross-cultural differences in health-related quality of life of people with epilepsy: findings from a European study

PURPOSE

To examine between-country differences in health-related quality of life (HRQOL) of adults with epilepsy across a large number of European countries.

METHODS

Self-completion postal questionnaire sent to large sample of adults with epilepsy, recruited from epilepsy support groups or epilepsy outpatient clinics. The questionnaire was developed in English and translated. Back-translations from each language were checked for accuracy. The questionnaire sought information on clinical and socio-demographic details, and contained a number of previously validated scales of psychosocial well-being (the SF-36, the perceived impact of epilepsy scale, and a feelings of stigma scale).

RESULTS

Controlling for socio-demographic and clinical characteristics, significant between-country differences were found in scores on the perceived impact of epilepsy scale, on seven of the eight SF-36 domains, and on the feelings of stigma scale. Respondents in Spain and the Netherlands fared consistently better, whilst those in France fared poorest, compared to those in other countries in terms of the various HRQOL measures used.

CONCLUSION

Several possible reasons for the cross-cultural differences in HRQOL are proposed. Clearly, there is no single explanation and there may also be reasons which we have overlooked. This study emphasises the need for further comprehensive research in order that the position of people with epilepsy in different countries be more thoroughly understood in the social context.

Evaluating health-related quality of life outcomes in clinical trials of antiepileptic drug therapy

PURPOSE

To provide an overview of condition-specific health-related quality of life (HRQL) assessment in clinical trials of antiepileptic drug (AED) therapy in adults. We describe the key measurement issues in HRQL evaluation, identify the instruments that have been used in this population, summarize the psychometric characteristics of these instruments, propose areas of HRQL most likely to change with treatment, and offer recommendations for further research.

METHODS

We conducted a comprehensive review of the literature using repeated searches of the MEDLINE database together with a review of reference lists from published papers. Psychometric information on the instruments was gathered from published literature.

RESULTS

Three epilepsy-specific HRQL measures were identified: the Epilepsy-Surgery Inventory (ESI-55), the Liverpool Assessment Battery, and the Quality of Life in Epilepsy Inventory (QOLIE, the 89-, 31-, and 10-item versions). One new measure, the Epilepsy Foundation of America (EFA) Concerns Index was also found. The psychometric characteristics of these instruments are discussed in relationship to performance or expected performance in a clinical trial setting. A review of descriptive studies and trials to date suggests that subscales reflecting the psychological and social domains of HRQL may be most sensitive to treatment designed to increase seizure-free periods, reduce seizure severity, and minimize undesirable side effects.

CONCLUSIONS

Although evaluation of HRQL outcomes in clinical trials of epilepsy is still in its infancy, several reliable and valid condition-specific measures are available for understanding the impact of disease and treatment on HRQL. Further research is needed to determine minimal clinically important change scores and to assess the psychometric stability of measures across cultures and mode of administration (self, interview, telephone). Studies of patient preferences for health outcomes in the form of utilities will provide needed data for evaluating the cost-effectiveness of new treatments.

Quality of life research in adults with epilepsy in Japan

Quality of life (QOL) research in epilepsy is a relatively recent development, but the field has expanded rapidly over the past 10 to 15 years. This expansion has seen the development of many tools with which to measure QOL in specific psychosocial domains and treatment settings. However, to date the initial development of these tools has been in English. Tools are also necessary to assess the QOL of people with epilepsy in non-English-speaking countries. These tools can be produced in two ways: by developing original tools in the language spoken in the country of use, or by translating and validating tools originally published in English. The latter approach has the advantages of being more rapid and allowing cross-cultural comparisons. We have completed or are in the process of translating into Japanese and validating three QOL assessment tools: the Washington Psychosocial Seizure Inventory, the Side Effects and Life Satisfaction inventory, and the Quality of Life in Epilepsy questionnaire. In this article, the results of this process are reported and cross-cultural comparisons using some of these tools are made. In this way, some of the problems associated with translating and validating QOL assessment tools are illustrated, and differences and similarities in the psychosocial impact of epilepsy in different countries are highlighted.

Adaptation and evaluation of the Liverpool Seizure Severity Scale and Liverpool Quality of Life battery for American epilepsy patients

The Liverpool Seizure Severity Scale (LSSS) and the Liverpool Quality of Life (LQOL) battery were developed in Great Britain to assess the severity of seizure symptoms and the impact of epilepsy on patients' quality of life. The scales have been validated on British patients, but have not been validated for use with American patients. The objectives of this study were to adapt the scales to the American population and to evaluate their reliability and validity. After modifications recommended by focus groups with patients and epilepsy specialists, the scales were administered to a sample of 90 epilepsy patients who had experienced seizures within the previous 4 weeks. Comparisons of patients with generalized tonic-clonic seizures (n = 58) and partial seizures (n = 32) revealed significant differences on 12 of the 20 items on the LSSS as well as the total score. None of the six LQOL subscales (negative drug effects, positive drug effects, affect balance, sense of mastery, life fulfillment and impact of epilepsy) distinguished patients with different seizure types but five of the six subscales were significantly correlated with seizure severity. The internal consistency and test-retest reliability were adequate for both the LSSS and LQOL. Finally, five of the six LQOL scales were significantly correlated with independent measures of mental health, physical health and role functioning.

The relationship between seizure frequency, seizure type and quality of life: findings from three European countries

Understanding the relationship between seizure frequency, seizure type and scores obtained from quality of life (QOL) measures is important if the incorporation of QOL measures into epilepsy clinical trials is to become standard practice. There is also a need to consider cross-cultural differences obtained from QOL measures, particularly in the context of multicentre international trials. In this study, 300 patients recruited from UK, Germany and France completed the Functional Status Questionnaire (FSQ); information about patients' clinical and demographic status was also collected. Results from the study highlighted that seizure type and seizure frequency, as well as country of origin, were significant predictors of scores on the FSQ. It is important to measure the effect of seizure type, not just seizure frequency, on QOL when testing for differences between antiepileptic therapies in the context of clinical trials.

Outcome assessment in epilepsy: comparative responsiveness of quality of life and psychosocial instruments

PURPOSE

Few data exist on the ability of instruments to detect within-patient change over time in epilepsy, a property referred to as responsiveness. Our aim was to compare the responsiveness of three instruments [i.e., Epilepsy Surgery Inventory-55 (ESI-55) and Washington Psychosocial Inventory (WPSI), both epilepsy specific, and Symptom Checklist-90-Revised (SCL-90-R), non-epilepsy specific].

METHODS

Instruments were administered at baseline and at 1 year in a prospective cohort of surgically (43) and medically (14) treated patients with temporal lobe epilepsy. Coefficient of Responsiveness and relative efficiency were computed for each scale and for the dimensions of mental health, physical health, and role function.

RESULTS

The ESI-55 contained the most responsive scales, whereas SCL-90-R contained the largest number of scales with moderate responsiveness. The largest number of scales with low responsiveness belonged to the WPSI. Sensitivity to between-treatment differences in change was highest for ESI-55 and SCL-90-R. The most efficient scales in detecting differences between treatment groups in the mental, physical, and role-function dimensions were ESI-55 emotional well-being, ESI-55 health perceptions, and SCL-90-R hostility, respectively.

CONCLUSIONS

Our results support the responsiveness of ESI-55 scales and suggest that SCL-90-R is a responsive tool for the assessment of psychologic function and distress in epilepsy. Comparatively, WPSI is relatively unresponsive to small or medium-size changes.

Epilepsy

Diagnosis and management of the epilepsies are routinely performed by primary care physicians. In the United States, only 17% of patients with new-onset epilepsy are examined by neurologic specialists, and even fewer patients employ neurologists for their ongoing care. With the changes dictated by the evolving health care system in the United States, the responsibilities for the treatment of patients with epilepsies by primary care physicians will continue to increase. At the same time, there has been an explosion of new information about the diagnosis, evaluation, natural history, and neurobiologic aspects of epilepsy. New medical and surgical treatments are being introduced with a quickening pace. Finally, the concept that certain epilepsies may be progressive and that early identification and aggressive treatment represent one's best chance for establishing control for these patients has gained widespread confirmation from both clinical and animal model studies. The past standard of care is quickly ending. No longer should a patient or a physician accept only partial seizure control. This monograph attempts to lay the basis for improved understanding of epilepsy so that our patients will be seizure free without side effects and will be able to fully participate in our society.

Standardisation of a self-report questionnaire for use in evaluating cognitive, affective and behavioural side-effects of anti-epileptic drug treatments

The development and standardisation of an inventory for measuring anti-epileptic drug effects on cognition and affect is described. The Side Effect and Life Satisfaction inventory (SEALS) was derived from symptoms and side-effects reported by a patient population. It was administered to 45 patients on two occasions and test-retest reliability was demonstrated. It was administered to 923 patients with epilepsy. An underlying factor structure was produced by principal components analysis, consisting of five sub-scales which were stable when data from males and females were analysed separately or together. Validity was evaluated by comparing inventory scores of patients undergoing a number of treatment trials to show that the inventory was sensitive to treatment differences when other variables were controlled. Patients taking two or more anti-epileptic drugs had poorer SEALS scores than those taking a single drug. Patients taking vigabatrin and one other AED had poorer scores than those taking lamotrigine (LTG) and one other AED. A comparison of changes from baseline to week 4 of a double blind comparison of carbamazepine (CBZ) and LTG showed significantly greater improvement in SEALS scores for patients taking LTG, and significantly poorer scores in those patients taking CBZ who dropped out of the study, than in those who continued. It is concluded that SEALS is a valid and reliable tool for use in anti-epileptic drug trials.

Life fulfillment in an epilepsy sample from the United States

This study examined the life fulfillment of a sample of 420 people with epilepsy drawn from affiliates of the Epilepsy Foundation of America in various urban and rural regions of the United States and also a private clinic. At the time of the study, all respondents were attending hospital outpatient neurological or epilepsy clinics for treatment, monitoring or advice. Life fulfillment was operationalized in terms of the discrepancy between people's desired and actual circumstances, and the scale developed for the research covered the following life domains: family and social relationships; leisure; worries; material security; employment. The findings revealed that the respondents were most fulfilled in the areas of family/social relationships, getting help with problems, leisure and housing. Health concerns seemed to be the prime source of non-fulfillment, with employment, marriage and money also appearing problematic. When factors associated with variations in overall life fulfillment were examined, unemployment, seizure predictability, polytherapy and living with a spouse/partner seemed to be of particular significance. The study findings are discussed and the need to pursue medical and vocational goals alongside each other in intervention strategies is emphasized.

Comparison of the psychometric characteristics of three quality of life measures in intractable epilepsy

Understanding how epilepsy affects an individual's quality of life (QOL) requires reliable and valid QOL measures. Analyses of reliability and validity rarely examine measures obtained in the same sample, making comparisons among measures difficult. We report analyses of internal consistency reliability, face, content, construct and criterion validity for the Epilepsy Surgery Inventory-55 (ESI-55, a measure based on the SF-36 Health Survey), the Sickness Impact Profile (SIP) and the Washington Psychosocial Seizure Inventory (WPSI) administered concurrently in the same sample of intractable epilepsy patients. Results generally support the validity of all three measures in assessing the aspects of QOL they were designed to address. The ESI-55 and SIP assess a broad, multi-dimensional construct of QOL in epilepsy, compared with the more specific focus of the WPSI on psychological and social adjustment. Judged by objective psychometric criteria, the ESI-55 and SIP are preferred over the WPSI in studies of the broad impact of epilepsy on quality of life.

[Psychosocial evaluation in epilepsy: experience with a version of WPSI]

Epilepsy has frequently been associated with important psycho-social problems. Washington Psychosocial Seizure Inventory is a inventory developed to identify the psycho-social problems in epilepsy. In this study we applied a WPSI version for a psychosocial evaluation of Brazilian patients: 54 epileptic patients answered a questionnaire in a period of 7 months. The application of WPSI showed difficulties in the scales: adjustment to seizures, financial status, vocational adjustment, emotional and interpersonal adjustment. The scores of problems were lower in the scales of family background, medicine and medical management. Level of schoolarity, employment status, seizure type, duration of epilepsy, control of seizures were factors influencing WPSI results. Difficulties were noticed in the comprehension of some words by the illiterate patients, and in high scores for validity scales. Our initial results were comparable to the literature. However, it should be necessary an adaptation of some language aspects and validity scales, and a further application in a larger number of epileptic patients to validate our WPSI version.

Washington Psychosocial Seizure Inventory: a multiinstitutional study in Japan

No reports of the Washington Psychosocial Seizure Inventory (WPSI) have yet been presented from Asian countries in detail. We performed a multiinstitutional study of this test in 652 Japanese subjects. The mean value of the Lie Scale was high, and only one third of our subjects were under the limit of the original criterion; this has been the biggest obstacle to use of the validity scales of this test in Japan. The profile form of the clinical scales was very similar to those reported from other countries. According to the relation between clinical characteristics and the WPSI scales, seizure frequency showed the strongest influence. In a comparison of whole subjects, mean scores of the clinical scales in Japan remained at an intermediate value or lower. This result was obviously distorted by the high score of the Lie Scale. When comparison was restricted to cases with valid Lie Scale scores, the values of five clinical scales showed high levels. Therefore, Japanese patients among developed countries apparently showed relatively severe levels of problems. We conclude that the WPSI could be a useful examination in Japan to determine reliably the various psychosocial problems of epileptic persons, but use of the Lie Scale according to the original criterion is not practical. Modifications of the limitation may be needed.

International differences in psychosocial well-being: a comparative study of adults with epilepsy in three countries

Whilst studies from several countries illustrate the universality of psychosocial difficulties connected with an epilepsy diagnosis, there is a marked lack of empirical research findings on the subject of how different national populations compare on the same measuring instruments. This study reports on comparisons of the psychosocial well-being of samples of adults with epilepsy drawn from Britain (n = 392), the United States (n = 420) and New Zealand (n = 138) using scales assessing self esteem, life fulfilment, social and interpersonal difficulty, general physical health, worries and emotional well-being. The Americans with epilepsy revealed significantly lower levels of well-being than both the New Zealanders and the British. Using the multivariate statistical methods of discriminant and cluster analysis, the scales which were especially predictive of nationality were shown to be life fulfilment, worries, negative affect, and (to a lesser extent) general physical health. Differences between the three national groups were not apparent with regard to self esteem, social difficulty and positive affect. Some possible explanations for the results obtained are put forward. The findings imply that nation-specific variables should be addressed in studies of quality of life and epilepsy, and their effect alongside intra-individual factors within other quality of life domains be ascertained.

The initial development of a health-related quality of life model as an outcome measure in epilepsy

Patients with refractory epilepsy, despite no fixed physical deficit, are often socially and psychologically handicapped. Currently available outcome measures for epilepsy do not adequately address these manifestations or their influence on well-being and quality of life. A patient-based health-related quality of life (HRQL) model for epilepsy including physical, social and psychological domains was constructed. It contains previously validated measures of anxiety, depression, happiness, overall mood, self-esteem, mastery, social satisfaction and general health and a specifically designed seizure severity scale with patient- and carer-based components. The psychometric properties of this model were evaluated in the context of the trial of a potential new antiepileptic drug. All the scales, except the Social Problems Questionnaire, have acceptable internal consistency (alpha 0.69-0.85) in this patient population. Construct validity is indicated by the ability of the scales to differentiate between groups of patients predicted to have different levels of psychosocial function. Treatment effects were detected by the patient (P = 0.017) and carers (P = 0.035) subscales of the seizure severity scale, the happiness (P = 0.003) and the mastery (P = 0.003) scales. Despite obvious deficiencies preliminary analyses are encouraging. This model provides a framework for investigating the complex interaction between the physical, social and psychological manifestations of epilepsy. The model has potential as an outcome measure for use in longitudinal studies and as a measure of disability for use in cross-sectional studies designed to compare quality of life in different populations of people with epilepsy.

Research use of the new quality-of-life in epilepsy inventory

Epilepsy is a heterogeneous disease with variable onset and prognosis. In general, patients with epilepsy have neuropsychological impairments. Their educational and occupational achievements may be lower than might be expected for their level of cognition. Some epilepsy patients suffer emotional distress, interictal behavioral disorders, and extreme social isolation. It is obvious that epilepsy and its sequelae impact on the patient's quality of life. What is not clear is the degree to which different factors contribute and the causes for extreme variance across patients. For example, the patients' perceptions of their disease affects quality of life more than actual seizure severity, but the mechanisms underlying this effect are not known. Quality-of-life research in epilepsy is in its infancy. In the future, such research will play an important role in assessing patient suffering, demonstrating the efficacy of treatments and interventions, and influencing medical economic decisions.

Developing a model of quality of life in epilepsy: the contribution of neuropsychology

Three specific issues must be considered in the development of a quality-of-life in epilepsy model and psychometric instrument. These issues are: (a) whether to adopt a narrow versus broad model of quality of life, (b) whether to rely on patient self-reports of quality of life or reports garnered from proxies, and (c) whether to develop a generic versus disease-specific measure of quality of life. In reviewing these issues the contributions of the health services research field, research pertaining to the psychological and social effects of epilepsy, and especially neuropsychology, are pertinent.

Biologic factors as predictors of social outcome of epilepsy in intellectually normal children: a population-based study

We studied social outcome for all the normally intelligent children in our province with onset of epilepsy between 1977 and 1985 (excluding absence and "minor motor" seizures). After follow-up averaging 7 1/2 years, the 337 patients were 7 to 28 years of age. Outcome measures were age dependent. Of those old enough to be at risk, the percentage with each unfavorable outcome was as follows: school failure 34%, use of special educational resources 34%, mental health consultation 22%, psychotropic medication 5%, unemployment 20%, social isolation 27%, inadvertent pregnancy 12%, and criminal conviction 2%. In social isolation 27%, inadvertent pregnancy 12%, and criminal conviction 2%. In a multivariate model correcting for number of potential unfavorable outcomes (based on age at end of follow-up), many variables related to epilepsy, seizure control, and electroencephalographic findings were not associated with social outcome. Only two variables were associated with at least one unfavorable outcome--learning disorder (p < 0.001) and more than 21 seizures before treatment was begun (p < 0.03). The only variable with no unfavorable outcome was simple partial seizures (p < 0.003). Sensitivity and specificity of this model were 54% and 68%, respectively, indicating that social outcome for these children was often not related to biologic factors reflected by the medical details and clinical course of their disorder.

Psychosocial evaluation of adults with epilepsy in Chile

The Washington Psychosocial Seizure Inventory (WPSI) was used to assess psychosocial functioning of 116 epileptic outpatients being treated in an epilepsy program at a public health service (PHS). Disturbances in several areas of psychosocial adjustment were noted. Although the distribution was similar to those previously reported using the WPSI, the severity of the observed disturbances was greater. Peak-score scales were Financial Status, Emotional and Interpersonal Adjustment, and Overall Psychosocial Functioning. Rehabilitation measures in epilepsy could play a substantial role in prevention and treatment of psychosocial disorders.

Specific cognitive dysfunction in children with epileptic mothers

Specific cognitive abilities and motor function were investigated at 5.5 years in 104 children with epileptic mothers and in 105 control children, all with normal general intelligence. The majority (89 per cent) of the children of epileptic mothers had been exposed to anti-epileptic drugs during pregnancy, most commonly phenytoin (69 per cent). Maternal seizures had occurred during pregnancy in 52 per cent. A significant difference, with poorer performance in the study group, was found in block design (WPPSI) and auditory closure (ITPA). Significantly more study than control children had some type of specific cognitive dysfunction. Within the study group, increased risk was associated with maternal partial seizures, with seizures occurring during pregnancy, and with low paternal education, but not with exposure to anti-epileptic drugs. Three possible mechanisms of this effect are suggested: subtle brain-damage associated with fetal asphyxia during the mothers' generalized convulsions; genetically transmitted brain abnormalities; and psychosocial disadvantage limiting partner choice.

Epidemiologic survey of epilepsy among Army draftees in Lombardy, Italy

We conducted an epidemiological survey of epilepsy among males born in 1967 who were called for selection for military service from the Lombardy region in northern Italy. Of 54,520 subjects, 258 had active epilepsy (prevalence, 0.47%). Idiopathic partial epilepsy was most common (29.1%), and generalized idiopathic and/or symptomatic epilepsy was least common (3.8%). In the year preceding the interview, 66.9% of the subjects had been free of generalized tonic-clonic seizures, 57.6% had been free of minor seizures, and 36.9% were seizure-free. Case histories revealed a background of febrile convulsions in 18.9% of subjects, status epilepticus in 11.3%, and a family history of epilepsy in 18.9%. Physical and mental development was normal in 75.5% of the subjects. Education level of subjects was lower than a control group, and the unemployment rate was the same as the local rate.

Sepulveda Epilepsy Education: the efficacy of a psychoeducational treatment program in treating medical and psychosocial aspects of epilepsy

The present study evaluated the efficacy of the Sepulveda Epilepsy Education program (SEE), using a controlled outcome design. SEE is a 2-day psychoeducational treatment program designed to provide medical education and psychosocial therapy. Thirty-eight outpatients, matched according to seizure type and frequency, were randomly assigned to treatment (n = 20) or waiting-list control (n = 18) groups. The major outcome measures used were a 50-item true-false test specifically designed to evaluate the SEE program, the Washington Psychosocial Seizure Inventory, the Beck Depression Inventory, Lubin's Depression Adjective Checklist, the State-Trait Anxiety Inventory, the Acceptance of Disability Scale, and Sherer's Self-Efficacy Scale. Significant differences between the two groups were found on the three major subscales of the 50-item true-false test. The treatment group demonstrated a significant increase in overall understanding of epilepsy, a significant decrease in fear of seizures, and a significant decrease in hazardous medical self-management practices. In addition, an objective measure of blood levels of antiepileptic drugs (AEDs) showed the treatment group to have a significant increase in medication compliance.

Psychosocial functioning of adult epileptic and MS patients and adult normal controls on the WPSI

The psychosocial functioning of adult epileptic outpatients (N = 68) as assessed by the Washington Psychosocial Seizure Inventory (WPSI) was compared to that of control groups of adult MS outpatients (N = 37) and normal subjects (N = 42). When all WPSI profiles were considered, the epilepsy group showed distinct difficulties in Emotional Adjustment and Adjustment to Seizures, whereas the MS group had difficulties only in Emotional Adjustment. However, the MS group had significantly higher Lie Scale scores than did normal subjects. The epilepsy group had significantly more emotional problems than normal subjects and significantly more problems adjusting to their disorder than did the MS group. However, when only valid WPSI profiles were considered, the only significant finding was that the epilepsy group (N = 44) and the MS group (N = 20) had more emotional problems than normal subjects (N = 35). The epilepsy group showed distinct difficulties in Emotional Adjustment and Adjustment to Seizures, whereas the MS group had difficulties in Emotional Adjustment, Interpersonal Adjustment, and Overall Psychosocial Functioning. Implications are discussed.