Construction and validation of an alternate form general mental health scale for the Medical Outcomes Study Short-Form 36-Item Health Survey

Assessing validity of the QuickDASH and SF-12 as surveillance tools among workers with neck or upper extremity musculoskeletal disorders

The purpose of this article was to assess validity of the regional Disabilities of Arm, Shoulder, and Hand (QuickDASH) and Short-Form 12 (SF-12) for surveillance purpose. We compared the predictive, discriminate, and concurrent validity of the QuickDASH and SF-12 among 231 workers with specific clinical diagnoses of neck or upper extremity musculoskeletal disorders (UEMSDs) and 175 workers with symptoms only. Compared to those with symptoms only, the odds of being any neck or UEMSD case were 1.45 (95% confidence interval [95% CI]: 1.24-1.70) and 0.66 (95% CI: 0.48-0.91) with every 10-point increase in QuickDASH disability and physical component scale (PCS-12) scores, respectively. The clinical cases had significantly higher QuickDASH disability (23.0 vs. 14.3, p<0.0001) and lower PCS-12 scores (44.8 vs. 47.3, p=0.0133) than those with symptom only. The QuickDASH disability scores were moderately correlated with the PCS-12 scores (rho=-0.40) among the clinical cases. Either QuickDASH or PCS-12 can be used as a simple surveillance tool in an active working population.

Tried and tested: the psychometric properties of the multiple sclerosis impact scale (MSIS-29) in a population-based study

OBJECTIVE

To investigate the psychometric properties of the Multiple Sclerosis Impact Scale (MSIS-29) and to assess the relationship between the Kurtzke Expanded Disability Status Scale and the physical and psychological parts of this score.

METHODS

A population-based study identified cases with definite multiple sclerosis (MS) in the north-east region of Ireland. They were examined and completed the MSIS-29. Cases were classified as mild (Expanded Disability Status Score (EDSS) 0-3.0), moderate (EDSS 3.5-5.5), or severe (6.0-9.5) MS.

RESULTS

The 248 participants (82 male, 166 female) had a mean age of 49.1 years (SD 12.4). EDSS ranged from 0 to 9.5 (median 6.0). Data quality was excellent (0.02% missing data), physical and psychological scores spanned the entire range with low floor and ceiling effects. Internal consistency was high (Cronbach's alpha 0.97 - physical score, 0.93 - psychological score). The convergent validity of the physical impact score of the MSIS-29 with the Kurtzke EDSS was confirmed with a high Spearman's rank coefficient correlation of 0.63 (P = 0.01). Physical impact scores for mild, moderate, and severe disability as were statistically different at 25.9%, 48.0%, and 63.9%, respectively. Mean psychological score was non-significantly higher in the moderately disabled group at 47.4% compared with the severely disabled at 44.3% (P = 0.58).

CONCLUSIONS

The MSIS-29 is an acceptable, reliable, and valid method of recording quality of life. A significant relationship between higher physical impact scores of the MSIS-29 and higher Kurtzke EDSS values suggests that is may be of use in clinical trials to monitor progression.

Mental health problems and marital disruption: is it the combination of husbands and wives' mental health problems that predicts later divorce?

BACKGROUND

Divorce has been established as an adverse social consequence of mental illness. There is, however, little research that has considered how the mental health of both spouses may interact to predict relationship disruption. The aim of the current study was to use data from a large population-based survey to examine whether the combination of spouses' mental health problems predicts subsequent marital dissolution.

METHODS

Prospective analysis of data from a longitudinal national household survey. 3,230 couples were tracked over 36 months, with logistic regression models used to determine whether the mental health problems of both spouses at wave 1 (determined by the SF36 mental health subscale) predicted subsequent relationship dissolution.

RESULTS

Couples in which either men or women reported mental health problems had higher rates of marital disruption than couples in which neither spouse experienced mental health problems. For couples in which both spouses reported mental health problems, rates of marital disruption reflected the additive combination of each spouse's separate risk. Importantly, these couples showed no evidence of a multiplicative effect of mental illness on rates of subsequent divorce or separation.

CONCLUSIONS

The results do not support the notion that a combination of mental health problems in both spouses uniquely predicts marital dissolution. Rather, there is an additive effect of individual mental health problems on the risk of dissolution.

Translation of the Neck Disability Index and validation of the Greek version in a sample of neck pain patients

BACKGROUND

Neck pain is a highly prevalent condition resulting in major disability. Standard scales for measuring disability in patients with neck pain have a pivotal role in research and clinical settings. The Neck Disability Index (NDI) is a valid and reliable tool, designed to measure disability in activities of daily living due to neck pain. The purpose of our study was the translation and validation of the NDI in a Greek primary care population with neck complaints.

METHODS

The original version of the questionnaire was used. Based on international standards, the translation strategy comprised forward translations, reconciliation, backward translation and pre-testing steps. The validation procedure concerned the exploration of internal consistency (Cronbach alpha), test-retest reliability (Intraclass Correlation Coefficient, Bland and Altman method), construct validity (exploratory factor analysis) and responsiveness (Spearman correlation coefficient, Standard Error of Measurement and Minimal Detectable Change) of the questionnaire. Data quality was also assessed through completeness of data and floor/ceiling effects.

RESULTS

The translation procedure resulted in the Greek modified version of the NDI. The latter was culturally adapted through the pre-testing phase. The validation procedure raised a large amount of missing data due to low applicability, which were assessed with two methods. Floor or ceiling effects were not observed. Cronbach alpha was calculated as 0.85, which was interpreted as good internal consistency. Intraclass correlation coefficient was found to be 0.93 (95% CI 0.84-0.97), which was considered as very good test-retest reliability. Factor analysis yielded one factor with Eigenvalue 4.48 explaining 44.77% of variance. The Spearman correlation coefficient (0.3; P = 0.02) revealed some relation between the change score in the NDI and Global Rating of Change (GROC). The SEM and MDC were calculated as 0.64 and 1.78 respectively.

CONCLUSION

The Greek version of the NDI measures disability in patients with neck pain in a reliable, valid and responsive manner. It is considered a useful tool for research and clinical settings in Greek Primary Health Care.

Validation of Scales From the Deployment Risk and Resilience Inventory in a Sample of Operation Iraqi Freedom Veterans

The Deployment Risk and Resilience Inventory (DRRI) is a suite of scales that can be used to assess deployment-related factors implicated in the health and well-being of military veterans. Although initial evidence for the reliability and validity of DRRI scales based on Gulf War veteran samples is encouraging, evidence with respect to a more contemporary cohort of Operation Iraqi Freedom (OIF) veterans is not available. Therefore, the primary goal of the present study was to validate scales from the DRRI in a large sample of OIF army personnel diversified in occupational and demographic characteristics. In general, results supported the use of these DRRI scales in this population. Internal consistency reliability estimates were quite strong. Additionally, support was obtained for criterion-related validity, as demonstrated by associations with mental and physical health measures, and discriminative validity, as demonstrated by differences between key military subgroups.

Psychosocial determinants of HIV-related quality of life among HIV-positive military in Nigeria

Summary

There is a paucity of research regarding the role played by psychosocial and HIV-related factors on quality of life (QoL) among military in developing countries. On presentation to a military hospital-based HIV clinic, 125 air-force personnel, 56 seropositive (none of whom had AIDS) and 69 seronegative were interviewed. At the interview, participants were assessed using the Medical Outcome QoL and other psychosocial measures. The overall QoL was less among seropositive compared with seronegative air-force personnel. Seropositive personnel also reported a greater number of negative life events and trauma symptoms (post-traumatic stress disorder, PTSD). Seronegative military personnel reported more sexual risk behaviours compared with seropositive personnel. Multivariate analysis showed that trauma symptoms (PTSD) were a significant contributor to QoL and explained of the variance in physical, mental, role and social functioning among HIV-infected air-force personnel. Other variables that predicted QoL, but to a lesser extent, included age, number of negative life events and increased symptomatology. These findings highlight the importance of evaluation of QoL in HIV-infected military personnel.

Engagement in paraprofessional home visitation: families' reasons for enrollment and program response to identified reasons

Home visitation programs have exhibited modest impact in promoting maternal and child health outcomes; therefore, formative research is necessary to examine whether home visiting program models or actual implementation need to be modified. In particular, client engagement and retention have been identified as areas in which program implementation can be enhanced. This study assessed home visiting clients' reasons for entering home visiting programs and their perception of programs' response to these identified needs. We asked newly enrolled home visiting clients (n = 123) to identify reasons for entering their home visiting program, including their first and second most important reasons. The most frequently cited reasons for enrolling were wanting information about job training, completing one's education, keeping in good health during pregnancy, and learning about infant growth and development. Home visiting programs' response to clients' identified needs varied. Needs more closely related to home visiting program goals of providing parenting education and promoting prenatal health were most often met, whereas needs less closely related to program goals (e.g., life course needs such as information about job training or education) were less often met. Our findings suggest that home visiting programs in urban contexts should consider modifying their program protocols to better respond to employment- and education-related issues facing their clients.

Exploring the differential experience of breast cancer treatment-related symptoms: a cluster analytic approach

INTRODUCTION

Cancer patients experience multiple concurrent symptoms. This exploratory analysis assessed symptom burden among patients undergoing chemotherapy for breast cancer to identify distinct subgroups of patients who experience differential symptom burden and assessed whether the patient subgroups were associated with deleterious quality of life (QOL) outcomes.

MATERIALS AND METHODS

Women (N = 133) with stage I and II breast cancer undergoing adjuvant chemotherapy after primary surgery were evaluated at baseline and at the end of chemotherapy using the Memorial Symptom Assessment Scale (MSAS) and the SF-36 QOL questionnaire. Post treatment MSAS symptoms were included in hierarchical cluster analysis. Two patient subgroups were identified that corresponded to a high-symptom prevalence group and a low-symptom group.

RESULTS AND DISCUSSION

No marked, statistically significant differences were found between groups on demographic, symptoms, QOL, or treatment variables at baseline. Patients in the high-symptom cluster were more likely to have stage I disease (p < 0.05). The two groups of patients showed significant differences in end-of-treatment symptoms and QOL scores (p < 0.05). The high-symptom burden group was more likely to report greater symptom prevalence and poorer QOL.

CONCLUSIONS

Future research needs to examine why these differences occur despite similarities in treatment and how symptom burden can be reduced for the high-symptom prevalence group.

Health status and service needs of male inmates seriously ill with HIV/AIDS at two large urban jails

Male inmates with HIV/AIDS being served by case-management programs for those seriously ill in jails in Los Angeles (n = 34) and New Orleans (n = 20) are described and compared. At both sites, most were Black and poor with a history of substance abuse. Psychological functioning (Mental Health Inventory [MHI-5]) scores indicated poor mental health. Inmates reported an average of more than 10 symptoms, and at least 25% reported needing multiple medical, practical, and social services. These findings document a subpopulation of jail inmates who are seriously ill with HIV/AIDS, and they describe the potential care and service needs of such inmates. Given the chronicity of HIV/AIDS and the importance of strict adherence to treatment protocols, it is important not only to facilitate access to care and services for inmates but also to secure continuity of care and access to services when inmates are transferred to another facility or released into the community.

Impact of a statewide home visiting program on parenting and on child health and development

OBJECTIVES

To assess the impact of a voluntary, paraprofessional home visiting program on promoting child health and development and maternal parenting knowledge, attitudes, and behaviors.

METHODS

This collaborative, experimental study of 6 Healthy Families Alaska (HFAK) programs enrolled 325 families from 1/00 to 7/01, randomly assigned them to HFAK and control groups, interviewed mothers at baseline, and followed families until children were 2 years old (85% follow-up). Child outcomes included health care use, development and behavior. Parent outcomes included knowledge of infant development, parenting attitudes, quality of the home environment, and parent-child interaction. HFAK records were reviewed to measure home visiting services. Home visitors were surveyed to measure knowledge, perceived effectiveness and perceived training adequacy.

RESULTS

There was no overall impact on child health, but HFAK group children had more favorable developmental and behavioral outcomes. HFAK and control mothers had similar parenting outcomes except that HFAK mothers had greater parenting self-efficacy (35.1 vs. 34.6 based on the Teti Self-Efficacy Scale, p<.05). Fewer HFAK families had a poor home environment for learning (20% vs. 31%, p<.001). HFAK families were more likely to use center-based parenting services (48% vs. 39%, p<.05). The impact was greater for families with lower baseline risk (Family Stress Checklist scores<45). There was little evidence of efficacy for families with a higher dose of service.

CONCLUSIONS

The program promoted child development and reduced problem behaviors at 2 years. Impact could be strengthened by improving home visitor effectiveness in promoting effective parenting. Future research is needed to determine whether short-term benefits are sustained.

Association of sexual abstinence in adolescence with mental health in adulthood

We examined whether adolescent sexual abstinence predicts better adult mental health. 1,917 adolescents, recruited from middle schools at age 13, were surveyed at ages 13, 18, 23, and 29. In bivariate analyses, adolescent sexual abstinence was associated with better mental health at age 29 for females, but not males; three adolescent factors, educational prospects, family bonding, and unconventionality were investigated as explanatory variables of this relationship. The abstinence-mental health relationship was nonsignificant when educational prospects was included in multivariate models, and marginally significant when family bonding and unconventionality were included; all three explanatory factors accounted for significant proportions of the variance in adult mental health. Girls who are uninvolved in school, have weak family backgrounds, and exhibit unconventionality may have poor adult mental health, whether or not they abstain from sex in adolescence. Interventions that strengthen adolescents' connections to families and schools may reduce risk for long-term mental health problems.

Impact of a statewide home visiting program to prevent child abuse

OBJECTIVES

To assess the impact of a voluntary, paraprofessional home visiting program in preventing child maltreatment and reducing the multiple, malleable psychosocial risks for maltreatment for which families had been targeted.

METHODS

This collaborative, experimental study focused on 6 Healthy Families Alaska (HFAK) programs; 325 families were enrolled in 2000-2001, randomized to intervention and control groups, and interviewed to measure baseline attributes. Follow-up data were collected when children were 2 years old (85% follow-up rate). Outcomes included maltreatment reports, measures of potential maltreatment and parental risks, for example, poor mental health, substance use, and partner violence. HFAK records were reviewed to measure home visiting services. Home visitors were surveyed to measure perceived effectiveness and training adequacy.

RESULTS

Parental risks were common at baseline, and one-sixth of families had a substantiated child protective services report in the child's first 2 years of life. There was no overall program effect on maltreatment reports, and most measures of potential maltreatment. Home visited mothers reported using mild forms of physical discipline less often than control mothers. The groups were similar in their use of more severe forms of physical discipline. There was no program impact on parental risks. There was no impact on outcomes for families with a 'high dose' of home visiting. Home visitors often failed to address parental risks and seldom linked families with community resources. Contradictions in the model compromised effectiveness.

CONCLUSIONS

The program did not prevent child maltreatment, nor reduce the parental risks that had made families eligible for service. Research is needed to develop and test strategies to improve the effectiveness of home visiting.

Functional status measures for integrating medical and social care

Purpose

Identify standard self-report questions about functioning suitable for measuring disability across integrated health and social services.

Theory

Functional activities can be validly grouped according to the International Classification of Functioning, Disability and Health (ICF) chapters of mobility, self-care, and domestic life.

Methods

Cross-sectional analysis using information on 112,601 persons interviewed as part of the United States National Health Interview Survey on Disability. We combined related sets of questions and tested the appropriateness of their groupings through confirmatory factor analyses. Construct validity was addressed by seeking to confirm clinically logical relationships between the resulting functional scales and related health concepts, including number of physician contacts, number of bed days, perception of illness, and perception of disability.

Results

Internal consistency for the summed scales ranged from 0.78 to 0.92. Correlations between the functional scales and related concepts ranged from 0.12 to 0.52 in directions consistent with expectations.

Conclusions

Analyses supported the 3 ICF chapters.

Discussions

The routine collection of this core set of functions could enhance decision-making at the client, professional, organizational, and policy levels encouraging cooperation among the medical and social service sectors when caring for people with disabilities.

Reliability and responsiveness of the Dutch version of the Neck Disability Index in patients with acute neck pain in general practice

A prospective cohort study with a 1 week follow-up. To examine the reliability and responsiveness of the Dutch version of the Neck Disability Index (NDI) in patients with acute neck pain in general practice. An increasing number of studies on treatment options is published in which the NDI is used. Reports of the ability of the NDI to detect change over time, often called responsiveness, however have not yet been published. At baseline 187 patients (119 women, 68 men) were included. They completed a questionnaire on demographic variables, self-reported cause of their complaints and the NDI. After 1 week, 86 patients were sent the NDI again together with the perceived recovery scale which was used as our external criterion. The scale ranged from 1 (complete recovery) to 7 (complaints are worse than ever). Response rate was 93%. Test-retest scores on reliability were good (ICC = 0.90). A Bland and Altman plot and a graph of total sum score differences showed no visible tendency towards unequal spreading of the data. For patients that reported on the perceived recovery scale that they were "stable" we found a responsiveness ratio of 1.82. The standard error of measurement (SEM) was 0.60 what resulted in a minimal detectable change (MDC) of 1.66. The NDI has shown to be a reliable and responsive instrument in patients with acute neck pain in general practice.

Formative evaluation of home visitors' role in addressing poor mental health, domestic violence, and substance abuse among low-income pregnant and parenting women

OBJECTIVES

This research assessed home visitor effectiveness in communicating about and responding to poor mental health, domestic violence, and substance abuse among pregnant and parenting women home visited as part of a comprehensive family support strategy in seven urban communities.

METHODS

Cross-sectional studies were conducted with mothers (n = 189) actively engaged in home visitation programs and home visitors (n = 45). Maternal interviews assessed need for and receipt of mental health, domestic violence, and substance abuse services, and home visitor discussion of these risk areas. Home visitor surveys assessed perceived adequacy of training and personal effectiveness in addressing these risk areas.

RESULTS

Over half of mothers needed mental health, domestic violence, or substance abuse services; however, only 27% of mothers in need of service received services. Most mothers reported having communicated with their home visitor about the three risk areas, but there were no differences in communication frequency based on whether services were needed. Most home visitors perceived themselves as effective in communicating about and responding to these risk factors but rated the training they had received in these areas as less than adequate.

CONCLUSIONS

Home visitors could benefit from more intensive training in the formal assessment of risks and the protocols for communication about those risks with their clients. Home visitors could also receive support from and work in collaboration with professionals in addressing client risks. Further research on home visit content is needed to determine which strategies facilitate home visitors' ability to effectively communicate about and address client risks.

Variations in Self-Rated Health Among Patients with HIV Infection

PURPOSE

To assess how patients with HIV who are enrolled in a clinical trials cohort rate their health and to compare their ratings with those of patients with HIV from 2 other cohorts: the HIV Cost and Services Utilization Study (HCSUS), and Adult AIDS Clinical Trials Group protocol 320 (ACTG 320).

METHODS

We analyzed baseline information for the 1649 subjects enrolled in the Adult AIDS Clinical Trials Group Longitudinal Linked Randomized Trials (ALLRT) study prior to March 2002 who had self-rated health data available. We compared those results with results from 2 other groups: HCSUS, the only nationally representative sample of people in care for HIV in the U.S., which conducted baseline interviews in 1996 and 1997, and ACTG 320, a randomized, double-blinded, placebo-controlled trial comparing a 3-drug antiretroviral regimen with a 2-drug combination, which enrolled subjects in the same general time frame as HCSUS. We used t tests, Pearson correlations, and linear regression to determine factors associated with self-rated health and z scores to compare results between cohorts.

RESULTS

The mean (SD) rating scale value on a 0-100 scale for ALLRT participants was 79.8 (16.8). Values were significantly lower for subjects who were older, had a history of injection drug use, had lower CD4 cell counts, or were beginning salvage antiretroviral therapy. Subjects in ALLRT reported significantly better self-rated health at baseline than those in HCSUS or ACTG 320 (11-12% higher rating scale values in ALLRT; p<0.05). When cohort differences were accounted for through regression and stratification, the differences in scores between subjects in ALLRT and HCSUS increased and the differences in scores between subjects in ALLRT and ACTG 320 diminished.

CONCLUSIONS

Self-rated health varied significantly by age, CD4 count, injection drug use history, and salvage therapy status. Differences in self-rated health for clinical trials and non-clinical trials samples appear to be substantial and should be considered when applying trial results to clinical populations.

Theoretical and methodological issues in conducting research related to health care utilization among individuals with HIV infection

Although empirical information on resource use during HIV infection is vital to improving quality of care, the issues involved in conducting research on resource use have received little attention in the medical literature. The purpose of this paper is to review the theoretical and methodological issues of conducting research on health care utilization patterns among persons with HIV/AIDS. Conceptual definitions of utilization are compared and contrasted. Three theoretical frameworks, the Andersen Behavioral Model, the Health Belief Model, and the Biopsychosocial Model are described to illustrate their applicability in future research studies. Research designs, measurement considerations, sampling approaches, and existing data sources on utilization are reviewed. Recommendations for health care utilization research are summarized and highlight the importance of designing studies and generating data for investigation of the factors facilitating patients' use of an optimal array of services including prevention, long-term, and rehabilitation care.

A randomized trial of chiropractic and medical care for patients with low back pain: eighteen-month follow-up outcomes from the UCLA low back pain study

STUDY DESIGN

Randomized clinical trial.

OBJECTIVES

To compare the long-term effectiveness of medical and chiropractic care for low back pain in managed care and to assess the effectiveness of physical therapy and modalities among patients receiving medical or chiropractic care.

SUMMARY OF BACKGROUND DATA

Evidence comparing the long-term relative effectiveness of common treatment strategies offered to low back pain patients in managed care is lacking.

METHODS

A total of 681 low back pain patients presenting to a managed-care facility were randomized to chiropractic with or without physical modalities, or medical care with or without physical therapy, and followed for 18 months. The primary outcome variables are low back pain intensity, disability, and complete remission. The secondary outcome is participants' perception of improvement in low back symptoms.

RESULTS

Of the 681 patients, 610 (89.6%) were followed through 18 months. Among participants not assigned to receive physical therapy or modalities, the estimated improvements in pain and disability and 18-month risk of complete remission were a little greater in the chiropractic group than in the medical group (adjusted RR of remission = 1.29; 95% CI = 0.80-2.07). Among participants assigned to medical care, mean changes in pain and disability and risk of remission were larger in patients assigned to receive physical therapy (adjusted RR = 1.69; 95% CI = 1.08-2.66). Among those assigned to chiropractic care, however, assignment to methods was not associated with improvement or remission (adjusted RR = 0.98; 95% CI = 0.62-1.55). Compared with medical care only patients, chiropractic and physical therapy patients were much more likely to perceive improvement in their low back symptoms. However, less than 20% of all patients were pain-free at 18 months.

CONCLUSIONS

Differences in outcomes between medical and chiropractic care without physical therapy or modalities are not clinically meaningful, although chiropractic may result in a greater likelihood of perceived improvement, perhaps reflecting satisfaction or lack of blinding. Physical therapy may be more effective than medical care alone for some patients, while physical modalities appear to have no benefit in chiropractic care.

A comparative review of health-related quality-of-life measures for use in HIV/AIDS clinical trials

With the advent of highly active antiretroviral therapy (HAART), HIV-infected patients are living longer and are concerned not only with a treatment's ability to extend their life but also with the quality of the life they are able to lead. Regulatory authorities are also paying closer attention to the use of health-related quality-of-life (HR-QOL) measures in clinical trials and to the subsequent claims that are made based on the results. This paper reviews existing HR-QOL measures reported in the HIV/AIDS literature since 1990 and identifies those most worthy of consideration for use in future clinical trials.A comprehensive review following predefined selection criteria was conducted. Generic and HIV-targeted measures were assessed for content and practicality for the clinical trial setting. The generic measures were additionally reviewed for the ability to produce preference-based index scores and for the existence of normative general population data. Three generic and six HIV-targeted measures met these selection criteria and were then assessed more fully in terms of their development (HIV-targeted measures), psychometric properties and appropriateness for use in clinical trials.It was determined that each of the selected generic measures (i.e. Medical Outcomes Study [MOS] 36-Item Short Form Survey Instrument [SF-36], EQ-5D, Health Utilities Index [HUI]) could serve as a useful adjunct to an HIV-targeted measure in a trial. The Functional Assessment of HIV Infection (FAHI) and MOS-HIV health survey were deemed the two most appropriate HIV-targeted measures. Each of the measures can be self-administered in < or = 10 minutes and there was ample evidence of their excellent psychometric properties. However, they would not be optimal in all HIV-infected subgroups (e.g. treatment naive vs advanced; adolescents vs older adults) targeted for clinical trial interventions. Although there is no one best HR-QOL measure for use in HIV/AIDS clinical trials, based on our review criteria we identified three generic and two HIV-targeted candidate measures. However, these measures have their limitations and it is clear that greater consensus needs to develop regarding more effective and efficient approaches to HR-QOL measurement in HIV/AIDS clinical trials. Along with the increasingly complex HR-QOL measurement task resulting from changes in the HIV-infected population and shifts in the HR-QOL burden associated with HIV infection and its treatment over the past 25 years, it is increasingly important that HR-QOL outcomes become viable endpoints in HIV/AIDS clinical trials.

Regular use of prescribed opioids: association with common psychiatric disorders

Use of opioids for chronic non-cancer pain is increasing, but the clinical epidemiology and standards of care for this practice are poorly defined. Psychiatric disorders are associated with increased physical symptoms and may be associated with opioid use. We performed a secondary analysis of cross-sectional data from the Health Care for Communities (HCC) survey conducted in 1997-1998 (N=9279) to determine the association of psychiatric disorders and self-reported regular use of prescribed opioids within the past year. Regular prescription opioid use was reported by 282 (3%) respondents. In unadjusted logistic regression models, respondents with common mental disorders in the past year (major depression, dysthymia, generalized anxiety disorder, or panic disorder) were more likely to report regular prescription opioid use than those without any of these disorders (OR=6.15, 95% CI=4.13, 9.14, P< 0.001). Respondents reporting problem drug use (OR=4.75, 95% CI=2.52, 8.94, P<0.001), or problem alcohol use (OR=1.89, 95% CI=1.03, 3.40, P=.041) reported higher rates of prescribed opioid use than those without problem use. In multivariate logistic regression models controlling for demographic and clinical variables, the presence of a common mental disorder remained a significant predictor of prescription opioid use (OR=3.15, 95% CI=1.69, 5.88, P<0.001), among individuals reporting low pain interference (N=8307); but not (OR=1.27, n.s.) among those reporting high pain interference (N=972). Depressive, anxiety and drug abuse disorders are associated with increased use of regular opioids in the general population. Depressive and anxiety disorders are more common and more strongly associated with prescribed opioid use than drug abuse disorders.

Mothers' mental distress and parenting practices with infants and toddlers

The purpose of this study was to examine whether maternal mental distress affects parenting practices related to monitoring activities (i.e. daily routines, enrichment activities). The nationally representative sample consisted of 1638 mothers. Maternal mental distress was assessed by the 5-item Mental Health Index (MHI). Logistic regression models were conducted, controlling for covariates (e.g. marital status, education level, etc.). Approximately 14% of the women reported high levels of mental distress and 25% of the women failed to engage in enrichment activities or consistent daily routines with their children. There was a significant adverse relationship between mental distress and routines, with women who were mentally distressed being more likely to not engage in daily routines. There was no significant relationship between mental distress and enrichment activities. Race differentials were evident among these relationships. These findings highlight the prevalence of maternal mental distress and its deleterious effects on select parenting behaviors.

Satisfaction as a predictor of clinical outcomes among chiropractic and medical patients enrolled in the UCLA low back pain study

STUDY DESIGN

Observational study conducted within a randomized clinical trial.

OBJECTIVES

The objective of this study is to estimate the effects of patient satisfaction on subsequent changes in pain and disability among low back pain patients randomized to chiropractic or medical care in a managed-care practice setting.

SUMMARY OF BACKGROUND DATA

Recent studies of low back pain treatments have shown chiropractic patients to be more satisfied with their care than medical patients. However, little is known about the relation between patient satisfaction and clinical outcomes.

METHODS

A total of 681 low back pain patients presenting to three southern California healthcare clinics and screened for serious spinal pathology and contraindications were randomized to medical care with and without physical therapy, and chiropractic care with and without physical modalities, and followed for 18 months. Satisfaction with back care was measured on a 40-point scale and observed at 4 weeks following randomization. The primary outcome variables, observed between 6 weeks and 18 months of follow-up, are average and most severe low back pain intensity in the past week, assessed with 0 to 10 numerical rating scales, low back-related disability, assessed with the 24-item Roland-Morris Disability Questionnaire, and remission from clinically meaningful pain and disability. Perceived change in low back symptoms was a secondary outcome.

RESULTS

Greater satisfaction increased the odds of remission from clinically meaningful pain and disability at 6 weeks (adjusted odds ratio [OR] for 10-point increase in satisfaction = 1.61, 95% confidence interval [CI] = 0.99, 2.68), but not at 6, 12, or 18 months (6 months: adjusted OR = 1.05, 95% CI = 0.73, 1.52; 12 months: adjusted OR = 0.94, 95% CI = 0.67, 1.32; 18 months: adjusted OR = 1.07; 95% CI = 0.76, 1.50). Perception of improvement was greater among highly satisfied than less satisfied patients throughout the 18-month follow-up period. The estimated effects of satisfaction on clinical outcomes were similar for medical and chiropractic patients.

CONCLUSIONS

Patient satisfaction may confer small short-term clinical benefits for low back pain patients. Long-term perceived improvement may reflect, in part, perceived past improvement as measured by satisfaction.

Effects of recreational physical activity and back exercises on low back pain and psychological distress: findings from the UCLA Low Back Pain Study

OBJECTIVES

We sought to estimate the effects of recreational physical activity and back exercises on low back pain, related disability, and psychological distress among patients randomized to chiropractic or medical care in a managed care setting.

METHODS

Low back pain patients (n=681) were randomized and followed for 18 months. Participation in recreational physical activities, use of back exercises, and low back pain, related disability, and psychological distress were measured at baseline, at 6 weeks, and at 6, 12, and 18 months. Multivariate logistic regression modeling was used to estimate adjusted associations of physical activity and back exercises with concurrent and subsequent pain, disability, and psychological distress.

RESULTS

Participation in recreational physical activities was inversely associated--both cross-sectionally and longitudinally--with low back pain, related disability, and psychological distress. By contrast, back exercise was positively associated--both cross-sectionally and longitudinally--with low back pain and related disability.

CONCLUSIONS

These results suggest that individuals with low back pain should refrain from specific back exercises and instead focus on nonspecific physical activities to reduce pain and improve psychological health.

Social support and maladaptive coping as predictors of the change in physical health symptoms among persons living with HIV/AIDS

This study examined social support and maladaptive coping as predictors of HIV-related health symptoms. Sixty-five men and women living with HIV/AIDS completed baseline measures assessing coping strategies, social support, and HIV-related health symptoms. The sample was primarily low-income and diverse with respect to gender, ethnicity, and sexual orientation. Three, 6, and 12 months after completing baseline assessments, physical health symptoms associated with HIV disease were assessed. After controlling for demographic characteristics, CD4 T-cell count, and baseline HIV-related health symptoms, individuals reporting lower increase in HIV-related health symptoms used less venting (expressing emotional distress) as a strategy for coping with HIV. However, when satisfaction with social support was added to the model, the use of this coping strategy was no longer significant, and individuals reporting more satisfying social support were more likely to report lower increase in their HIV-related health symptoms, suggesting that social support is a robust predictor of health outcomes over time independent of coping style and baseline medical status. These findings provide further evidence that social support can buffer deleterious health outcomes among individuals with a chronic illness. Future research needs to examine mediating pathways that can explain this relationship.

Frequency and clinical predictors of adverse reactions to chiropractic care in the UCLA neck pain study

STUDY DESIGN

Randomized clinical trial.

OBJECTIVES

To document the types and frequencies of adverse reactions associated with the most common chiropractic treatments for neck pain, and to identify possible clinical predictors of adverse reactions to chiropractic treatment.

SUMMARY OF BACKGROUND DATA

Chiropractic care is frequently sought by patients for relief from neck pain; however, adverse reactions related to its primary modes of treatment have not been well examined.

METHODS

A total of 336 patients with neck pain presenting to 4 southern California health care clinics were randomized in a balanced 2 x 2 x 2 factorial design to manipulation with or without heat, and with or without electrical muscle stimulation (EMS); and mobilization with or without heat and with or without EMS. Discomfort or unpleasant reactions from chiropractic care were self-assessed at 2 weeks after the randomization/baseline visit.

RESULTS

Of the 280 participants (83%) who responded, 85 (30.4%) had 212 adverse symptoms as a result of chiropractic care. Increased neck pain or stiffness was the most common symptom, reported by 25% of the participants. Less common were headache and radiating pain. Patients randomized to manipulation were more likely than those randomized to mobilization to have an adverse symptom occurring within 24 hours of treatment (adjusted odds ratio [OR] = 1.44, 95% confidence interval [CI] = 0.83, 2.49). Heat and EMS were only weakly associated with adverse symptoms (heat: OR = 0.94, 95% CI = 0.54, 1.62; EMS: OR = 1.09, 95% CI = 0.63, 1.89). Moderate-to-severe neck disability at baseline was strongly associated with adverse neurologic symptoms (OR = 5.70, 95% CI = 1.49, 21.80).

CONCLUSIONS

Our results suggest that adverse reactions to chiropractic care for neck pain are common and that despite somewhat imprecise estimation, adverse reactions appear more likely to follow cervical spine manipulation than mobilization. Given the possible higher risk of adverse reactions and lack of demonstrated effectiveness of manipulation over mobilization, chiropractors should consider a conservative approach for applying manipulation to their patients, especially those with severe neck pain.

Predictors of changes in health-related quality of life among men with HIV infection in the HAART era

In a prospective cohort study between February 2001 and January 2004, baseline and 12-month follow-up data were collected on 226 and 197 men with HIV infection at three infectious disease clinics in a southern state, respectively. While many studies have provided important information on the correlates of health-related quality of life (HRQOL) during HIV infection, little research attention has been directed toward examining the impact of factors on change in HRQOL over time. This study evaluated changes in HRQOL, and examined whether baseline active coping, family social support, depressive symptoms and CD4 cell counts predicted HRQOL changes over time among men with HIV infection. Patients' HRQOL, social support and depressive symptoms were measured with the HIV Cost and Services Utilization Study tool, Coping with HIV Questionnaire, Social Support Appraisals Scale, and Centers for Epidemiological Studies Depression instrument. Multivariate linear regression analyses were conducted to determine the time-related effects of the psychosocial variables and CD4 cell counts on each HRQOL dimension. Our results indicated that higher family support and CD4 cell counts at baseline were predictive of improved changes in physical and social functioning over time, and higher depressive symptoms at baseline were predictive of diminished role functioning, emotional well-being, and general health perception. These findings underline the importance of enhancing family social support, identifying and treating depression, and improving immune function to optimize HRQOL among men with HIV infection.

Can computer-generated evidence-based care suggestions enhance evidence-based management of asthma and chronic obstructive pulmonary disease? A randomized, controlled trial

OBJECTIVE

Translation of evidence-based guidelines into clinical practice has been inconsistent. We performed a randomized, controlled trial of guideline-based care suggestions delivered to physicians when writing orders on computer workstations.

STUDY SETTING

Inner-city academic general internal medicine practice.

STUDY DESIGN

Randomized, controlled trial of 246 physicians (25 percent faculty general internists, 75 percent internal medicine residents) and 20 outpatient pharmacists. We enrolled 706 of their primary care patients with asthma or chronic obstructive pulmonary disease. Care suggestions concerning drugs and monitoring were delivered to a random half of the physicians and pharmacists when writing orders or filling prescriptions using computer workstations. A 2 x 2 factorial randomization of practice sessions and pharmacists resulted in four groups of patients: physician intervention, pharmacist intervention, both interventions, and controls. DATA EXTRACTION/COLLECTION METHODS: Adherence to the guidelines and clinical activity was assessed using patients' electronic medical records. Health-related quality of life, medication adherence, and satisfaction with care were assessed using telephone questionnaires.

PRINCIPAL FINDINGS

During their year in the study, patients made an average of five scheduled primary care visits. There were no differences between groups in adherence to the care suggestions, generic or condition-specific quality of life, satisfaction with physicians or pharmacists, medication compliance, emergency department visits, or hospitalizations. Physicians receiving the intervention had significantly higher total health care costs. Physician attitudes toward guidelines were mixed.

CONCLUSIONS

Care suggestions shown to physicians and pharmacists on computer workstations had no effect on the delivery or outcomes of care for patients with reactive airways disease.

Mental health status of clients from three HIV/AIDS palliative care projects

Objective:To describe mental health status and its correlates among clients of three palliative care programs targeting underserved populations.

Methods:Mental Health Inventory (MHI-5) scores of clients from programs in Alabama (n= 39), Baltimore (n= 57), and New York City (n= 84) were compared.

Results:Mean MHI-5 scores did not differ among sites and were indicative of poor mental health. Significant differences were noted among sites with regard to client sociodemographics, physical functioning, and perceptions of interpersonal relations. Results of multivariate regression models estimated for each site suggest variation in the relative importance of potential predictors among sites. Whereas poorer mental health was primarily associated with history of drug dependence at Baltimore and more physical symptomatology at New York, better mental health was most strongly correlated with more positive perceptions of interpersonal relationships at Baltimore and increasing age and more positive perceptions of meaning and purpose in life at New York.

Significance of results:The data presented suggest the importance of assessing clients' history of and current need for mental health services. Evidence of a relationship between positive perceptions of meaning and purpose and better psychological function underscores the importance of existential issues for the overall well-being of those who are seriously ill.

Measuring validity of self-reported symptoms among people with HIV

Symptoms are important indicators of health and treatment for people with HIV. Symptoms are measured by patient self-report, but there has been little attention to what is the best method of elicitation. We compared three methods (presence, frequency, and bother) commonly used to measure HIV self-reported symptoms. CD4+ T lymphocyte count and health-related quality of life (HRQL) scales were used to test validity in 160 people with HIV. The average number of symptoms reported was 15.2 (standard deviation 8.4). Correlation coefficients of summary symptom scores using the three methods ranged from -0.30 to -0.36 with HRQL score and from -0.19 to -0.20 with CD4 count (p<0.05). Correlation coefficients of seven specific symptom items with CD4+ counts and HRQL scores for the same concepts were small to moderate (-0.08 to -0.58, p<0.05). For the three methods, the correlation coefficients in general tended to be greater with frequency or bother than presence. However, the differences among the three methods were not statistically significant. We conclude that no single method is superior to the others.

Gender differences in health-related quality of life in patients with HIV/AIDS

BACKGROUND

In studies evaluating the general US population, patients in primary care, and patients with chronic conditions, women consistently report poorer health-related quality of life (HRQoL) than men; however, studies evaluating HRQoL in patients with HIV/AIDS have not completely corroborated those findings. The objective of this study was to evaluate gender differences in HRQoL for participants in a large randomized trial comparing antiretroviral regimens.

METHODS

AIDS Clinical Trials Group (ACTG) 320 was a randomized, blinded, placebo-controlled trial comparing the 3-drug regimen of indinavir + zidovudine (or stavudine) + lamivudine with the 2-drug combination of zidovudine (or stavudine) + lamivudine in subjects with CD4 cell counts less than 200 cells/microl and no prior treatment with protease inhibitors. Nine quality of life domains scored on 0-100 scales were assessed using the ACTG QOL 601-602 Health Survey at 3 points in the trial: baseline, 24 weeks and 40 weeks. Differences between men and women in HRQoL scores were assessed using the Wilcoxon rank-sum test and generalized estimating equation (GEE) models.

RESULTS

Overall, 202 females and 976 males were randomized to one of two treatment arms. Female participants were more likely to be black or Hispanic and tended to be younger. At baseline, females reported lower HRQoL scores than males in all of the domains except social functioning, and at week 40, women scored lower in all of the domains except overall health. In repeated measures models, women were found to score lower in all HRQoL domains except overall health, with significant differences of 3.5-6.7 points in 3 of the 9 quality of life domains: physical functioning, pain, and energy/fatigue. HRQoL scores improved for participants in the study over time and in response to potent treatment, and the improvements were similar for men and women.

CONCLUSIONS

Women with HIV/AIDS report substantially poorer HRQoL than men with HIV/AIDS in several HRQoL domains. However, changes in domain scores over time and in response to treatment do not differ significantly by gender, implying that changes in domain scores may be better HRQoL outcomes to compare between HIV-infected men and women in clinical trials than mean domain scores.

Challenges to evidence-based medicine: a comparison of patients and treatments in randomized controlled trials with patients and treatments in a practice research network

BACKGROUND

The practice of evidence-based medicine depends on the availability of clinically relevant research, yet questions have been raised about the generalizability of findings from randomized controlled trials (RCTs).

OBJECTIVES

The aim of this study was to quantify differences between RCT patients and treatments and those in day-to-day clinical practice.

RESEARCH DESIGN

Data from published reports of two key RCTs underlying recent treatment advances in psychiatry were compared with data on routine psychiatric practice collected through a Practice Research Network (PRN).

SETTING

Hospital inpatient units (RCT) and the full range of psychiatric practice settings in the United States (PRN).

SUBJECTS

Adults with bipolar I disorder and adults with schizophrenia.

MEASURES

Demographic (age, gender, race), clinical (principal diagnoses, comorbid conditions, psychosocial functioning, and histories of hospitalization), and treatment (medication name and dosage) characteristics.

RESULTS

PRN patients had more comorbid conditions and were more likely to be white, female, and older than RCT patients. In all, 38% of PRN patients with schizophrenia and 55% of PRN patients with bipolar I disorder would have been ineligible for the corresponding RCT. Most PRN patients receiving an RCT study medication were also receiving other medications not allowed by the RCT protocol.

CONCLUSIONS

Findings support the assertion that RCT patients and treatments are not typical of those in clinical practice, and most patients in clinical practice are receiving treatments that do not have direct empirical support. Research is needed to determine the extent to which RCT findings should be used to guide routine clinical decisions.

Psychosocial and geriatric correlates of functional status after total hip replacement

OBJECTIVE

To determine whether psychosocial factors, chronic diseases, and common geriatric problems are associated with poor physical function 3 years after primary total hip replacement (THR).

METHODS

We studied a sample of Medicare recipients in Ohio, Pennsylvania, and Colorado (n = 922) who underwent primary THR in 1995 (mean +/- SD age 73.1 +/- 5.6 years, 32% men). Participants completed a questionnaire regarding lifestyle factors, medical history, and quality of life approximately 3 years after the surgery. Physical function was measured using the function subscale of the Western Ontario and McMaster Universities Osteoarthritis Index. We assessed the relationship between functional outcome 3 years postsurgery and 4 predictor domains: pain or complications in the operated hip, other musculoskeletal comorbidity, medical factors (obesity, chronic medical comorbidity, rheumatoid arthritis, and such common geriatric problems as falls, poor balance, or incontinence), and psychosocial factors (mental health, regular alcohol consumption, smoking, provider role, living alone, and education).

RESULTS

Ten percent of subjects had poor functional status. In a logistic regression model controlling for sex and age, the following factors were associated with an increased risk for poor functional status (in order of importance): pain in the back or lower extremity, severe pain in the operated hip, poor mental health, more than 1 common geriatric problem, obesity, and less than college education.

CONCLUSION

Pain in the operated hip was strongly associated with poor functional status 3 years after THR. However, other factors associated with poor functional status were not related to the hip. Our results suggest that a comprehensive assessment of functional status in elderly THR patients should include assessment of common geriatric problems, mental health status, and weight.

Health-related quality of life among men with HIV infection: effects of social support, coping, and depression

In a prospective cohort study, baseline data were collected on 226 males with HIV infection attending three infectious disease clinics in a southern state. As a result of advances in HIV treatment, understanding the association between psychosocial factors and health-related quality of life has become an important area of study. The purpose of this study was to assess the total effects of social support and coping as well as the direct and indirect effects of these factors through depression on health-related quality of life. Subjects were interviewed and answered the following standardized questionnaires: The HIV Cost and Services Utilization Study tool, Coping with HIV Questionnaire, Social Support Appraisals Scale, and Centers for Epidemiological Studies Depression instrument. Path models with strictly ordered relationships were fitted to study the effects of the psychosocial variables on each quality of life subscale. We found that coping and social support had total effects on some, but not all dimensions of health-related quality of life, whereas depression was associated with all dimensions of health-related quality of life. Furthermore, the effects of both social support and coping were mainly through the intermediate variable, depression. In the era of highly active antiretroviral therapy (HAART), when quality of life issues are of paramount importance, strategies to improve social support, coping, and particularly, depressive symptoms are strongly encouraged.

The Effects of Health and Environment on Exercise-Class Participation in Older, Urban Women

This research investigated the effects of health and environmental factors on the dropout and intermittent nonattendance of an exercise program designed specifically for older, female, primary-care patients living in the inner city. Class-attendance records (n = 21,538) from a cohort 110 women were analyzed. Women who dropped out early had poorer perceived health and were more likely to report pain as an exercise barrier at baseline. Those who lived in a census tract where a larger percentage of workers walk to work were less likely to drop out early. Intermittent nonattendance was associated with adverse weather conditions including heat index above 90 degrees F, wind-chill index below 20 degrees F, overcast sky, and snow. Better attendance was associated with greater atmospheric pressure, as well as lower number of sunlight hours per day. This research highlights the need to better understand environmental barriers when promoting physical activities in older women.

Failure of computerized treatment suggestions to improve health outcomes of outpatients with uncomplicated hypertension: results of a randomized controlled trial

STUDY OBJECTIVE

To assess the effects of evidence-based treatment suggestions for hypertension made to physicians and pharmacists using a comprehensive electronic medical record system.

DESIGN

Randomized controlled trial with a 2 x 2 factorial design of physician and pharmacist interventions, which resulted in four groups of patients: physician intervention only, pharmacist intervention only, intervention by physician and pharmacist, and intervention by neither physician nor pharmacist (control).

SETTING

Academic primary care internal medicine practice.

SUBJECTS

Seven hundred twelve patients with uncomplicated hypertension.

MEASUREMENTS AND MAIN RESULTS

Suggestions were displayed to physicians on computer workstations used to write outpatient orders and to pharmacists when filling prescriptions. The primary end point was generic health-related quality of life. Secondary end points were symptom profile and side effects from antihypertensive drugs, number of emergency department visits and hospitalizations, blood pressure measurements, patient satisfaction with physicians and pharmacists, drug therapy compliance, and health care charges. In the control group, implementation of care changes in accordance with treatment suggestions was observed in 26% of patients. In the intervention groups, compliance with suggestions was poor, with treatment suggestions implemented in 25% of patients for whom suggestions were displayed only to pharmacists, 29% of those for whom suggestions were displayed only to physicians, and 35% of the group for whom both physicians and pharmacists received suggestions (p=0.13). Intergroup differences were neither statistically significant nor clinically relevant for generic health-related quality of life, symptom and side-effect profiles, number of emergency department visits and hospitalizations, blood pressure measurements, charges, or drug therapy compliance.

CONCLUSION

Computer-based intervention using a sophisticated electronic physician order-entry system failed to improve compliance with treatment suggestions or outcomes of patients with uncomplicated hypertension.

Randomized trial of a statewide home visiting program to prevent child abuse: impact in reducing parental risk factors

OBJECTIVES

To assess the impact of a home visiting program in reducing malleable parental risk factors for child abuse in families of newborns identified, through population-based screening, as at-risk of child abuse.

METHODS

This randomized trial focused on Healthy Start Program (HSP) sites operated by three community-based organizations on Oahu, HI, USA. From 11/94 to 12/95, 643 families were enrolled and randomly assigned to intervention and control groups. Mothers in both groups were interviewed annually for 3 years (88% follow-up each year) to measure mental health, substance use, and partner violence. HSP records were reviewed to measure home visiting services provided. Home visitors were surveyed annually to measure their perceived competence.

RESULTS

Malleable parental risks for child abuse were common at baseline. There was no significant overall program effect on any risk or on at-risk mothers' desire for and use of community services to address risks. There was a significant reduction in one measure of poor mental health at one agency and a significant reduction in maternal problem alcohol use and repeated incidents of physical partner violence for families receiving > or =75% of visits called for in the model. Home visitors often failed to recognize parental risks and seldom linked families with community resources. HSP training programs were under-developed in preparing staff to address risks and to link families with community resources.

CONCLUSIONS

Overall, the home visiting program did not reduce major risk factors for child abuse that made families eligible for service. Research is needed to develop and test strategies to improve home visiting effectiveness in reducing parental risks for child abuse.

24-item Roland-Morris Disability Questionnaire was preferred out of six functional status questionnaires for post-lumbar disc surgery

OBJECTIVE

Measurement properties of questionnaires should be based on samples of populations on whom these measurements will be used. The purpose of this study is to establish an evidence based recommendation regarding the use of functional status questionnaires in patients following a lumbar disc surgery by a direct comparison of the reproducibility and responsiveness.

STUDY DESIGN AND SETTING

The measurement properties of six functional status questionnaires were assessed: 1) Roland-Morris Disability Questionnaire (RDQ-24), 2) Modified Roland-Morris Disability Questionnaire (MRDQ), 3) short Roland-Morris Disability Questionnaire (RM-18), 4) Physical Functioning scale, 5) Role Limitations-Physical scale of the SF-36, and 6) The Main Complaint (MC). Subjects (n=97) that still suffered residual complaints 6 weeks following a lumbar disc surgery completed the questionnaires before and 3 months after treatment. In a direct comparison the A) The test-retest reproducibility (Intraclass Correlation Coefficients [ICC] and the Standard Error of Measurement [SEM]) and B) 3 parameters of responsiveness (Minimal Detectable Change [MDC], Standardised Response Mean [SRM], and the Area Under the receiver operator characteristic Curve [AUC]) were assessed.

RESULTS

This study suggests the superiority of the 3 versions of the RDQ compared to the 3 other questionnaires. Comparing the 3 versions of the RDQ reveals no substantial differences thereby indicating that the 2 modified version of the RDQ hold no better measurement properties in this specific population.

CONCLUSION

The use of the RDQ-24 for this specific post-surgery population is suggested. The optimal cut-off point of the RDQ-24 that minimizes the overall classification error was found to be 3.5 with a sensitivity of 94.6% and a specificity of 88.2%.

Adverse reactions to chiropractic treatment and their effects on satisfaction and clinical outcomes among patients enrolled in the UCLA Neck Pain Study

BACKGROUND

Minor side effects associated with chiropractic are common. However, little is known about their predictors or the effects of reactions on satisfaction and clinical outcomes.

OBJECTIVE

The objectives of this study are to compare the relative effects of cervical spine manipulation and mobilization on adverse reactions and to estimate the effects of adverse reactions on satisfaction and clinical outcomes among patients with neck pain.

METHODS

Neck pain patients were randomized to receive cervical spine manipulation or mobilization. At 2 weeks, subjects were queried about possible treatment-related adverse reactions and followed for 6 months with assessments for pain and disability at 2, 6, 13, and 26 weeks. Numerical rating scales and the Neck Disability Index were used to measure pain and disability. Perceived improvement and satisfaction with care were assessed at 4 weeks.

RESULTS

Of 960 eligible patients, 336 enrolled and 280 responded to the adverse event questionnaire. Thirty percent of respondents reported at least 1 adverse symptom, most commonly increased pain and headache. Patients randomized to manipulation were more likely than those randomized to mobilization to report an adverse reaction (adjusted odds ratio = 1.44, 95% confidence interval = 0.85, 2.43). Subjects reporting adverse reactions were less satisfied with care and less likely to have clinically meaningful improvements in pain and disability.

CONCLUSIONS

Adverse reactions are more likely to be reported following cervical spine manipulation than mobilization. Chiropractors may reduce iatrogenesis and increase satisfaction and perhaps clinical outcomes by mobilizing rather than manipulating their neck pain patients.

Effects of computerized guidelines for managing heart disease in primary care

BACKGROUND

Electronic information systems have been proposed as one means to reduce medical errors of commission (doing the wrong thing) and omission (not providing indicated care).

OBJECTIVE

To assess the effects of computer-based cardiac care suggestions.

DESIGN

A randomized, controlled trial targeting primary care physicians and pharmacists.

SUBJECTS

A total of 706 outpatients with heart failure and/or ischemic heart disease.

INTERVENTIONS

Evidence-based cardiac care suggestions, approved by a panel of local cardiologists and general internists, were displayed to physicians and pharmacists as they cared for enrolled patients.

MEASUREMENTS

Adherence with the care suggestions, generic and condition-specific quality of life, acute exacerbations of their cardiac disease, medication compliance, health care costs, satisfaction with care, and physicians' attitudes toward guidelines.

RESULTS

Subjects were followed for 1 year during which they made 3,419 primary care visits and were eligible for 2,609 separate cardiac care suggestions. The intervention had no effect on physicians' adherence to the care suggestions (23% for intervention patients vs 22% for controls). There were no intervention-control differences in quality of life, medication compliance, health care utilization, costs, or satisfaction with care. Physicians viewed guidelines as providing helpful information but constraining their practice and not helpful in making decisions for individual patients.

CONCLUSIONS

Care suggestions generated by a sophisticated electronic medical record system failed to improve adherence to accepted practice guidelines or outcomes for patients with heart disease. Future studies must weigh the benefits and costs of different (and perhaps more Draconian) methods of affecting clinician behavior.

Cross-validation, predictive validity, and time course of the Benzodiazepine Dependence Self-Report Questionnaire in a benzodiazepine discontinuation trial

The Benzodiazepine Dependence Self-Report Questionnaire (Bendep-SRQ) measures the severity of benzodiazepine (BZ) dependence on four domains: awareness of problematic use, preoccupation with the availability of BZ, lack of compliance with the therapeutic regimen, and withdrawal. Although promising results of the Bendep-SRQ have been obtained in cross-sectional studies, no attention has been paid to its clinical relevance during BZ withdrawal, i.e., predictive validity and time course. We performed cross-validation and evaluated the predictive validity and time course on 180 long-term BZ users who were taking part in a general practice BZ discontinuation trial. Three of the four domains had good scalability. Some concerns arose about the preoccupation scale, which emphasizes the need for cross-validation in clinically relevant populations. All scales showed excellent reliability (subject discriminability, item discriminability), while construct and discriminant validity were adequate. All four scales contributed significantly to the prediction of whether complete abstinence would be achieved directly after taking part in the discontinuation program. This prediction was independent of the other prognostic variables, except for those in the domain problematic use. The scales problematic use and preoccupation showed good sensitivity to changes during follow-up. The insensitivity of the scale, lack of compliance can be explained by low baseline scores in our population, while the insensitivity of the withdrawal scale was probably the result of the study design. In conclusion, our study indicated the clinical relevance of the Bendep-SRQ before and during a BZ discontinuation trial. We recommend the use of the Bendep-SRQ in discontinuation therapy and research into the field of BZ addiction.

Cross-sectional and longitudinal associations of low-back pain and related disability with psychological distress among patients enrolled in the UCLA Low-Back Pain Study

The objectives of the study are to test the hypotheses that psychological distress affects subsequent low-back pain, and pain affects subsequent distress. Six hundred eighty-one participants in a randomized clinical trial of low-back pain treatments were followed for 18 months with assessments for pain, disability, and psychological distress at 6 weeks and 6, 12, and 18 months. Multivariable logistic regression modeling with generalized estimating equations was used to estimate effects. Current pain and disability increased the odds of subsequent psychological distress [pain: adjusted odds ratio (OR)=1.36, 95% confidence interval (CI)=1.07, 1.72; disability: adjusted OR=1.23, 95% CI=0.98, 1.55], and current distress increased the odds of subsequent pain and disability (pain: adjusted OR=1.51, 95% CI=1.24, 1.86; disability: adjusted OR=1.49; 95% CI=1.20, 1.85). Cross-sectional associations were much stronger than the longitudinal associations, suggesting bias in the former due to selection factors and/or temporal ambiguity. The longitudinal findings suggest that pain/disability and psychological distress may be causes and consequences of each other, although the associations are small.

Behavioral medicine in the prevention and treatment of cardiovascular disease

Cardiac behavioral medicine is the application of behavioral and psychosocial principles to the prevention and treatment of heart disease. Most biomedical cardiovascular risk factors (e.g., high blood lipids, high blood pressure, diabetes) require behavioral and medical interventions. Other risks, including obesity, high-fat eating pattern, smoking, and inactivity, clearly require lifestyle change. Behavioral medicine screening and intervention have been applied to psychosocial risk factors such as depression, hostility, and social isolation. Appropriate assessment of risk factors is essential because research has demonstrated successful prevention of heart disease and reduction of morbidity and mortality in patients with existing disease. Behavioral interventions have been beneficial in improving cardiac outcomes by enhancing compliance with medication taking and dietary/exercise recommendations. Future needs include the study of psychosocial factors in women and ethnic minorities with heart disease and the integration of behavioral medicine with newer medical technologies designed to detect subclinical biomarkers of heart disease.

A randomized trial of medical care with and without physical therapy and chiropractic care with and without physical modalities for patients with low back pain: 6-month follow-up outcomes from the UCLA low back pain study

STUDY DESIGN

A randomized clinical trial.

OBJECTIVES

To compare the effectiveness of medical and chiropractic care for low back pain patients in managed care; to assess the effectiveness of physical therapy among medical patients; and to assess the effectiveness of physical modalities among chiropractic patients.

SUMMARY OF BACKGROUND DATA

Despite the burden that low back pain places on patients, providers, and society, the relative effectiveness of common treatment strategies offered in managed care is unknown.

METHODS

Low back pain patients presenting to a large managed care facility from October 30, 1995, through November 9, 1998, were randomly assigned in a balanced design to medical care with and without physical therapy and to chiropractic care with and without physical modalities. The primary outcome variables are average and most severe low back pain intensity in the past week, assessed with 0 to 10 numerical rating scales, and low back-related disability, assessed with the 24-item Roland-Morris Disability Questionnaire.

RESULTS

Of 1,469 eligible patients, 681 were enrolled; 95.7% were followed through 6 months. The mean changes in low back pain intensity and disability of participants in the medical and chiropractic care-only groups were similar at each follow-up assessment (adjusted mean differences at 6 months for most severe pain, 0.27, 95% confidence interval, -0.32-0.86; average pain, 0.22, -0.25-0.69; and disability, 0.75, -0.29-1.79). Physical therapy yielded somewhat better 6-month disability outcomes than did medical care alone (1.26, 0.20-2.32).

CONCLUSIONS

After 6 months of follow-up, chiropractic care and medical care for low back pain were comparable in their effectiveness. Physical therapy may be marginally more effective than medical care alone for reducing disability in some patients, but the possible benefit is small.

Spontaneous cessation of smoking and alcohol use among low-income pregnant women

BACKGROUND

Despite the strong evidence of harmful effects, tobacco and alcohol use during pregnancy continue to be major public health challenges. Some women, however, do stop spontaneously when they learn of their pregnancy. No study has investigated spontaneous cessation of both behaviors in a low-income predominantly unmarried U.S. population.

OBJECTIVE

To describe the prevalence of spontaneous cessation of cigarette and alcohol use alone and in combination and associated factors among low-income pregnant women.

METHODS

Subjects (N=601) were currently smoking or smoking when they became pregnant and participating in Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) programs in the greater Boston, Massachusetts, area. Baseline interviews assessed the factors being studied and the spontaneous cessation of cigarette and alcohol use with pregnancy. Saliva cotinine verified self-reported smoking status.

RESULTS

Spontaneous cessation of smoking and alcohol use was reported by 28% and 80% of the women, respectively; 25% spontaneously quit both, and 15% stopped neither. Multivariable analyses indicated that smoking cessation was less likely in women who had previous births, had a husband or partner who smoked, were born in the United States, were black (non-Hispanic, non-Portuguese), had less than a high school education, were highly addicted, reported lower perceived risk to the fetus, and reported "too many other problems in life to stop." Hispanic ethnicity, younger age, and more social support to quit smoking were related to spontaneous alcohol abstinence.

CONCLUSIONS

Targeted multiple strategies, including those aimed at increasing participation of partners, are needed for low-income pregnant smokers.