Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Olympia Hadjimichael is active.

Publication


Featured researches published by Olympia Hadjimichael.


Multiple Sclerosis Journal | 2004

Prevalence and treatment of spasticity reported by multiple sclerosis patients

Marco Rizzo; Olympia Hadjimichael; Jana Preiningerova; Timothy Vollmer

The objective of this study was to characterize the population of multiple sclerosis (MS) patients suffering from spasticity and to evaluate treatment patterns, including intrathecal baclofen (ITB) delivery, related to patient quality of life (QOL). We conducted a cross-sectional, two-level study using data from the Patient Registry of the North American Research Committee on MS (NARCOMS). In addition, we surveyed a subgroup of 198 preselected patients who are using ITB (ITBG) and a random sample of 315 oral drug users (ORALG). Among the registrants, 16% reported no spasticity, 31% minimal, 19% mild, 17% moderate (frequently affects activities), 13% severe (daily forced to modify activities) and 4% total (prevents daily activities). Patients experiencing greater severity included by proportion males, and those older and with longer duration of MS. QOL scores decreased inversely with severity. In the focused survey, ITBG reported lower levels of spasticity than ORALG, less stiffness in the legs, less pain and fewer spasms at any time. They scored significantly lower in the SF-36 physical component, yet reported less fatigue on the MFIS scale. Prevalence data reveal that one third of MS patients modify or eliminate daily activities as a result of spasticity. Treatment of spasticity can significantly impact QOL parameters by reducing spasms, pain and fatigue.


Pain | 2007

Persistent pain and uncomfortable sensations in persons with multiple sclerosis

Olympia Hadjimichael; Robert D. Kerns; Marco A. Rizzo; Gary Cutter; Timothy Vollmer

Abstract The experience of pain has been documented in small studies of individuals with multiple sclerosis (MS). The present study examines the prevalence of persistent pain and uncomfortable sensations among participants in the large North American Research Committee on MS (NARCOMS) Patient Registry. Registrants (10,176) responded to a questionnaire on pain and 7579 reported experiencing some level of pain during the month prior to the survey. Among the respondents 49% reported mild to severe pain and 49% of those indicated severe pain. Increased pain intensity was positively associated with gender (more women), multiple pain sites (51% of the severe pain group reported four or more pain sites), and constancy of pain (44% among the group with severe pain). There was also a positive association with increased MS‐related disability, relapsing‐worsening type of MS, and depression. Respondents with severe pain made greater use of the healthcare system and of prescribed analgesics, but were less likely to be satisfied with their doctors’ efforts to manage their pain. About one‐third of the patients with moderate pain and 18% of those with severe pain reported no consultations for their pain. The effects of pain severity were fully evident in the respondents’ daily life, their work, mood, recreational activities and enjoyment of life. Our results indicate that the high prevalence of MS‐related severe pain, low satisfaction with management of intense pain, and the perceived interference with quality of life indicators necessitate greater attention by healthcare providers to the management of pain and uncomfortable sensations in the MS population.


Journal of Neurology | 2008

Employment in multiple sclerosis : Exiting and re-entering the work force

Laura Julian; Lea Vella; Timothy Vollmer; Olympia Hadjimichael; David C. Mohr

Multiple sclerosis (MS) is associated with significant economic burden and high rates of unemployment. This investigation evaluated patient and disease characteristics associated with work loss and work initiation using the NARCOMS patient registry. Patient and disease characteristics associated with transitions to unemployment or employment were evaluated cross-sectionally and prospectively over the course of two assessment periods (mean interval of 1.56 ± 0.93 years). Eligible participants included 8,867 patients for the cross-sectional component, and 8,122 for longitudinal analyses. At Time 1 and Time 2 56–58 % of MS patients were not employed. At Time 1, unemployed participants more likely to have a progressive disease course, had a longer symptom duration, greater levels of disability as measured by the PDDS, and greater functional limitations across all domains of the performance scales (p < 0.0001 for all). At Time 2, increasing MS symptoms in the past 6 months increased the odds of becoming unemployed. In addition, specific problems in mobility, hand function, fatigue, and cognitive performance domains were associated with increased odds of becoming unemployed. Less severe problems in similar areas, including mobility, hand function, and cognitive functioning were also predictive of work initiation among patients not employed. MS is associated with high rates of unemployment. Specific physical and mental health limitations confer risk of employment cessation over time, as well as the likelihood of employment initiation. This study has implications for rehabilitation interventions to target specific MS related limitations that place patients at greatest risk for work status changes.


Health and Quality of Life Outcomes | 2008

Fatigue characteristics in multiple sclerosis: the North American Research Committee on Multiple Sclerosis (NARCOMS) survey

Olympia Hadjimichael; Timothy Vollmer; MerriKay Oleen-Burkey

BackgroundFatigue is a common disabling symptom of multiple sclerosis (MS) and has a significantly negative impact on quality of life. Persons with MS enrolled in the North American Research Committee on Multiple Sclerosis (NARCOMS) Patient Registry are invited to complete follow-up surveys every six months to update their original registration information. One of these surveys was designed to focus on the severity and impact of fatigue, and its association with other clinical parameters of MS such as physical disability.MethodsIn addition to the usual data collected in Registry update surveys such as demographic characteristics, MS-related medical history, disability and handicap, immunomodulatory and symptomatic therapies taken, and healthcare services used, the survey for this study included two validated self-report fatigue scales, the Fatigue Severity Scale (FSS) and the Modified Fatigue Impact Scale (MFIS) and questions about the use of symptomatic management for fatigue, both pharmacologic and non-pharmacologic treatments. This Registry update survey was mailed to all NARCOMS registrants (n = 18,595) in November 2002. Information provided by registry participants was approved for research purposes by the Yale University Institutional Review Board.ResultsThe response rate for the survey was 49.5% (9205/18,595). Severe fatigue as measured with the FSS using the developers recommended severity cutpoint of ≥ 36 was reported by 6691 (74%) of evaluable respondents (n = 9077). A higher prevalence of severe fatigue was observed in relapsing-worsening MS compared with relapsing-stable and primary progressive MS. A distinct pattern of fatigue was observed across the disability levels of the Patient-Determined Disease Steps (PDDS). Although there were no differences in the severity or impact of fatigue by immunomodulatory agents (IMA), respondents who recalled therapy changes in the prior six months reported different patterns of change in fatigue with lower fatigue levels reported after changing from interferon-β to glatiramer acetate than after changing from glatiramer acetate to interferon-β. Concomitant therapy for fatigue was used by 47.2% of the 5799 survey respondents receiving IMA.ConclusionCharacterizing MS symptoms like fatigue can increase awareness about their impact on persons with MS and suggest recommendations for a care plan.


Cancer | 2003

Obesity as a potential risk factor for adenocarcinomas and squamous cell carcinomas of the uterine cervix

James V. Lacey; Christine A. Swanson; Louise A. Brinton; Sean F. Altekruse; Willard A. Barnes; Patti E. Gravitt; Mitchell D. Greenberg; Olympia Hadjimichael; Larry McGowan; Rodrigue Mortel; Peter E. Schwartz; Robert J. Kurman; Allan Hildesheim

Hormonal factors may play a more prominent role in cervical adenocarcinoma than squamous cell carcinoma. The authors evaluated whether obesity, which can influence hormone levels, was associated with adenocarcinoma and squamous cell carcinoma.


Neurology | 2005

Changes in the ascertainment of multiple sclerosis

Ruth-Ann Marrie; Gary Cutter; Tuula Tyry; Olympia Hadjimichael; Denise Campagnolo; Timothy Vollmer

Objective: With diagnostic criteria alterations, increased MRI availability, and awareness of therapies, temporal changes in incidence and prevalence rates may occur, with an increase in the proportion of mildly affected persons diagnosed with multiple sclerosis (MS). The authors assessed temporal trends in the delay from symptom onset to diagnosis (DONDX), and determined whether the degree of disability at diagnosis differs by year of symptom onset (YONSET), using the NARCOMS Registry. Methods: The authors selected US participants with an age at symptom onset of 10 to 60 years, and YONSET ≥ 1980 (n = 16,581). The authors divided YONSET into 5-year groups and compared DONDX between groups using multivariate Cox regression. The authors classified participants enrolled within 2 years of diagnosis (n = 5,548) as having mild, moderate, or severe disability using Patient Determined Disease Steps, and assessed the association of disability with YONSET using polytomous logistic regression. Results: DONDX decreased with later YONSET (r = –0.43, p < 0.0001). This association remained after adjustment for demographic factors in a multivariate Cox model. Later YONSET was associated with increased odds of having mild disability at diagnosis as compared to severe disability (OR = 1.10 per year; 1.09 to 1.11). Conclusion: The delay from symptom onset to diagnosis is steadily decreasing in MS. An increasing proportion of patients with MS have mild disability at diagnosis after accounting for confounders. As the effectiveness of therapies is influenced by disease duration, this has implications for comparison of treatment effects in modern clinical trials to earlier study results.


Multiple Sclerosis Journal | 2003

Predictors of alternative medicine use by multiple sclerosis patients

Ruth Ann Marrie; Olympia Hadjimichael; Timothy Vollmer

Objective: To determine the frequency of alternative medicine use among multiple sclerosis (MS) patients, and the factors which predict such use. Methods: We examined 20778 MS patients enrolled in the North A merican Research C onsortium on Multiple Sclerosis (NARC O MS) Patient Registry, residing in the USA. We used demographic and clinical data to create multivariate logistic regression models for i) lifetime use of any alternative medicine, ii) lifetime use of any alternative provider (A P), and iii) lifetime use of each of the three most common A P. Results: 20387 patients provided data regarding alternative medicine use. Lifetime use of any alternative medicine was 54% and current use was 30%. C hiropractors (51%), massage therapists (34%), and nutritionists (24%) were the most commonly used A P. In all five models, use of alternative medicine was most strongly predicted by use of a conventional provider, and more modestly by disease factors indicating more severe or prolonged disease. Predictive power of the models was poor (c-index =0.62-0.68), despite good fits for the data. Conclusions: Demographic factors play only a minimal role in predicting the use of alternative medicine in this MS population while disease factors play a slightly stronger role. There must be other factors involved that may include accessibility, social acceptability and cultural factors. G iven the frequency of alternative medicine use by this patient population, further characterization of these factors is important.


Cancer Causes & Control | 2001

Associations between smoking and adenocarcinomas and squamous cell carcinomas of the uterine cervix (United States)

James V. Lacey; Morten Frisch; Louise A. Brinton; Fouad M. Abbas; Willard A. Barnes; Patti E. Gravitt; Mitchell D. Greenberg; Sarah M. Greene; Olympia Hadjimichael; Larry McGowan; Rodrigue Mortel; Peter E. Schwartz; Richard J. Zaino; Allan Hildesheim

AbstractObjectives: Few studies of smoking and cervical carcinoma have addressed the rare cervical adenocarcinomas or used DNA-based tests to control for human papillomavirus (HPV) infection. Methods: This multicenter case–control study included 124 adenocarcinoma cases, 307 community controls (matched on age, race, and residence to adenocarcinoma cases), and 139 squamous carcinoma cases (matched on age, diagnosis date, clinic, and disease stage to adenocarcinoma cases). Participants completed risk-factor interviews and volunteered cervical samples for PCR-based HPV testing. Polychotomous logistic regression generated adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for both histologic types. Results: Eighteen percent of adenocarcinoma cases, 43% of squamous carcinoma cases, and 22% of controls were current smokers. After control for HPV and other questionnaire data, adenocarcinomas were consistently inversely associated with smoking (e.g. current: OR = 0.6, 95% CI 0.3–1.1; ≥1 pack per day: OR = 0.7, 95% CI 0.4–1.3), while squamous carcinomas were positively associated with smoking (e.g. current: OR = 1.6, 95% CI 0.9–2.9; ≥1 pack per day: OR = 1.8, 95% CI 1.0–3.3). Results in analyses restricted to HPV-positive controls were similar. Conclusion: Smoking has opposite associations with cervical adenocarcinomas and squamous carcinomas. Although both histologic types are caused by HPV and arise in the cervix, etiologic co-factors for these tumors may differ.


Journal of Neuroscience Nursing | 2004

A prospective study of adherence to glatiramer acetate in individuals with multiple sclerosis.

Cira Fraser; Linda Morgante; Olympia Hadjimichael; Timothy Vollmer

The purpose of this prospective study was to investigate whether self-efficacy, hope, level of disability, perceived support, and previous use of an immunomodulatory therapy when measured at the initiation of a therapy can accurately predict adherence. A convenience sample included 108 individuals with multiple sclerosis who initiated therapy with glatiramer acetate (Copaxone), plus or minus 21 days, and completed instruments online that included the Multiple Sclerosis Self-Efficacy Scale (MSSE), the Herth Hope Index, Performance Scales, and a sociodemographic data sheet that included questions about previous use of immunomodulators and individuals considered most supportive of glatiramer acetate therapy. Logistic regression analysis revealed that the MSSE total (Control and Function subscales combined) was the only significant predictor of adherence. The higher the score, the more likely the individual was to adhere to glatiramer acetate. Those in the adherent group had a significantly greater level of self-efficacy. The MSSE measured at the initiation of glatiramer acetate therapy correctly classified 98.8% of those who were adherent at the 6-month follow-up. For each unit of increase in score, the likelihood of adherence increased. This prospective study revealed that the MSSE, when measured at the initiation of therapy, seems useful in predicting adherence category at the 6-month follow-up.


Journal of Neuroscience Nursing | 2001

Predictors of adherence to Copaxone therapy in individuals with relapsing-remitting multiple sclerosis

Cira Fraser; Olympia Hadjimichael; Timothy Vollmer

&NA; The purpose of this study was to evaluate psychological, biophysical, and sociodemographic variables as predictors of adherence to glatiramer acetate (Copaxone®) therapy in individuals with relapsing‐remitting multiple sclerosis (MS). Because Copaxone is a daily subcutaneous injection, individuals with MS are challenged by the daily routine of preparation and administration of this medication. Despite the challenges, some individuals with MS adhere to treatment with injectable medications with little or no difficulty, while others struggle to adhere to, and soon abandon, the daily task. It is important to identify predictors of adherence to Copaxone therapy so those at risk can be identified early and provided with individualized support at the onset of therapy. Potential participants were identified from the Consortium of Multiple Sclerosis Centers North American Research Committee on Multiple Sclerosis Patient Registry database (n = 600) and from the Shared SolutionsTM MS patient support database (n = 600). Individuals who had taken or stopped taking Copaxone were specifically selected. Those taking multiple immunomodulating drugs or not able to complete the data collection instruments were excluded. Booklets containing four instruments (MS Self‐Efficacy Control and Function Subscales, Rosenberg Self‐Esteem Scale, Herth Hope Index [HHI], and Performance Scale) and sociodemographic data sheets were mailed to 1,200 individuals. Of the 594 who completed and returned booklets, 341 individuals had relapsing‐remitting MS and met the inclusion criteria. There were 225 individuals in the adherent group and 116 in the nonadherent group. Logistic regression analysis revealed four significant predictors of adherence: self‐efficacy (control), hope, perception that the doctor was the most supportive of the individual taking Copaxone, and no previous use of other immunomodulators. The higher the score on the MS Self‐Efficacy Control Subscale and HHI, the more likely the individual will adhere to Copaxone therapy. The MS Self‐Efficacy Control Subscale and HHI show promise of being useful predictors of adherence. Further testing is recommended. Physician support should be conveyed to all individuals starting and maintaining Copaxone therapy for MS. Creator support needs to be provided to those who have previously taken immunomodulating drugs.

Collaboration


Dive into the Olympia Hadjimichael's collaboration.

Top Co-Authors

Avatar

Timothy Vollmer

University of Colorado Boulder

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Allan Hildesheim

National Institutes of Health

View shared research outputs
Top Co-Authors

Avatar

Larry McGowan

George Washington University

View shared research outputs
Top Co-Authors

Avatar

Louise A. Brinton

National Institutes of Health

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Patti E. Gravitt

George Washington University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

James V. Lacey

City of Hope National Medical Center

View shared research outputs
Top Co-Authors

Avatar

Rodrigue Mortel

Pennsylvania State University

View shared research outputs
Researchain Logo
Decentralizing Knowledge