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Dive into the research topics where Helen Thomas is active.

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Featured researches published by Helen Thomas.


Journal of the American Academy of Child and Adolescent Psychiatry | 1992

Outcome, prognosis, and risk in a longitudinal follow-up study.

David R. Offord; Michael H. Boyle; Yvonne Racine; Jan E. Fleming; David Cadman; Heather Munroe Blum; Carolyn Byrne; Paul S. Links; Ellen L. Lipman; Harriet L. Macmillan; Naomi I. Rae Grant; Mark Sanford; Peter Szatmari; Helen Thomas; Christel A. Woodward

This study reports the results of a 4-year follow-up of a community sample of children who were ages 4 to 12 in 1983 at the first wave of data collection. Results on outcomes revealed that conduct disorder showed the greatest stability especially from late childhood to early adolescence. In multivariate analyses, both family dysfunction and problems getting along with others significantly predicted the persistence of one or more psychiatric disorders 4 years later, and low income predicted one or more psychiatric disorders among children free of disorder 4 years earlier. The implications of the results for the child psychiatric field, especially prevention, are discussed.


Implementation Science | 2010

Expediting systematic reviews: methods and implications of rapid reviews

Rebecca Ganann; Donna Ciliska; Helen Thomas

BackgroundPolicy makers and others often require synthesis of knowledge in an area within six months or less. Traditional systematic reviews typically take at least 12 months to conduct. Rapid reviews streamline traditional systematic review methods in order to synthesize evidence within a shortened timeframe. There is great variation in the process of conducting rapid reviews. This review sought to examine methods used for rapid reviews, as well as implications of methodological streamlining in terms of rigour, bias, and results.MethodsA comprehensive search strategy--including five electronic databases, grey literature, hand searching of relevant journals, and contacting key informants--was undertaken. All titles and abstracts (n = 1,989) were reviewed independently by two reviewers. Relevance criteria included articles published between 1995 and 2009 about conducting rapid reviews or addressing comparisons of rapid reviews versus traditional reviews. Full articles were retrieved for any titles deemed relevant by either reviewer (n = 70). Data were extracted from all relevant methodological articles (n = 45) and from exemplars of rapid review methods (n = 25).ResultsRapid reviews varied from three weeks to six months; various methods for speeding up the process were employed. Some limited searching by years, databases, language, and sources beyond electronic searches. Several employed one reviewer for title and abstract reviewing, full text review, methodological quality assessment, and/or data extraction phases. Within rapid review studies, accelerating the data extraction process may lead to missing some relevant information. Biases may be introduced due to shortened timeframes for literature searching, article retrieval, and appraisal.ConclusionsThis review examined the continuum between diverse rapid review methods and traditional systematic reviews. It also examines potential implications of streamlined review methods. More of these rapid reviews need to be published in the peer-reviewed literature with an emphasis on articulating methods employed. While one consistent methodological approach may not be optimal or appropriate, it is important that researchers undertaking reviews within the rapid to systematic continuum provide detailed descriptions of methods used and discuss the implications of their chosen methods in terms of potential bias introduced. Further research comparing full systematic reviews with rapid reviews will enhance understanding of the limitations of these methods.


International Journal of Technology Assessment in Health Care | 2004

Use of systematic reviews in the development of new provincial public health policies in Ontario

Maureen Dobbins; Helen Thomas; Mary Ann O'Brien; Melissa Duggan

OBJECTIVES The study determined whether the results of recently completed systematic reviews evaluating the effectiveness of public health interventions were used in the development of new provincial policies for public health practice. METHODS This telephone survey included all members from five review groups who updated the Ontario Mandatory Health Programs and Services guidelines for Public Health in 2000. Independent variables included characteristics of the systematic reviews, organization, and the individual. Outcomes included the use of the reviews in developing new policies and the extent to which the reviews led to new recommendations for practice. Descriptive summaries as well as multiple linear regression were conducted. RESULTS Eighty-five percent of decision-makers agreed to participate in the study. Ninety-six percent of respondents reported that the systematic reviews played a part in developing the new guidelines, while 47 percent indicated that the reviews contributed a great deal to the development of new recommendations for practice. The multiple linear regression model explained 42 percent of the variation in use of the reviews for developing new recommendations for practice. Significant predictor variables included the importance of the reviews in comparison to other sources of information and relevance of the reviews to the policy decisions. CONCLUSION Public health decision-makers in Ontario have very positive perceptions of the usefulness of systematic reviews in policy development. Therefore, ongoing efforts to promote the usefulness and relevance of systematic reviews to public health decision-makers should remain a priority for health services researchers.


Journal of Developmental and Behavioral Pediatrics | 2009

Development and Evaluation of an Instrument to Measure Parental Satisfaction With Quality of Care in Neonatal Follow-Up

Michelle L. Butt; Janet Pinelli; Michael H. Boyle; Helen Thomas; Mabel Hunsberger; Saroj Saigal; David S. C. Lee; Jamie K. Fanning; Patricia Austin

Objective: The goal of this study was to develop and subsequently evaluate the psychometric properties of a new discriminative instrument to measure parental satisfaction with the quality of care provided in neonatal follow-up (NFU) programs. Method: The methodological framework for developing and evaluating measurement scales described by Streiner and Norman (Health Measurement Scales: A Practical Guide to Their Development and Use. 3rd ed. New York: Oxford University Press; 2003) was used for the study. Informing the phases of the research was a sample of 24 health care professionals and 381 parents who use NFU services. Results: A comprehensive list of items representing the construct, parental satisfaction with quality of care, was generated from published reliable and valid instruments, research studies, focus groups with health care experts, and focus groups with parents. Using a clinimetric approach, the 62 items generated were reduced to 39 items based on parents’ ratings of importance and refinement of the items by the research team. After content validation and pretesting, the instrument was tested with parents and underwent item-analysis. The resulting 16-item instrument was composed of 2 subscales, Process and Outcomes. Evaluation of the instrument’s psychometric properties indicated adequate test–retest reliability (intraclass correlation coefficient = 0.72) and internal consistency (Process subscale, &agr; = 0.77; Outcomes subscale, &agr; = 0.90; overall instrument, &agr; = 0.90), as well as good content and construct validity. A confirmatory factor analysis supported the multidimensionality of the construct. Conclusion: This new instrument provides clinicians and policy-makers with a tool to assess parental satisfaction with the quality of care in NFU, so areas of dissatisfaction can be identified and changes implemented to optimize service provision.


BMC Medical Informatics and Decision Making | 2005

A Severe Acute Respiratory Syndrome extranet: supporting local communication and information dissemination

Ruta Valaitis; Noori Akhtar-Danesh; Cathy M Kealey; Glenn M Brunetti; Helen Thomas

BackgroundThe objective of this study was to explore the use and perceptions of a local Severe Acute Respiratory Syndrome (SARS) Extranet and its potential to support future information and communication applications. The SARS Extranet was a single, managed electronic and limited access system to manage local, provincial and other SARS control information.MethodsDuring July, 2003, a web-based and paper-based survey was conducted with 53 SARS Steering Committee members in Hamilton. It assessed the use and perceptions of the Extranet that had been built to support the committee during the SARS outbreak. Before distribution, the survey was user-tested based on a think-aloud protocol, and revisions were made. Quantitative and qualitative questions were asked related to frequency of use of the Extranet, perceived overall usefulness of the resource, rationale for use, potential barriers, strengths and limitations, and potential future uses of the Extranet.ResultsThe response rate was 69.4% (n = 34). Of all respondents, 30 (88.2%) reported that they had visited the site, and rated it highly overall (mean = 4.0; 1 = low to 5 = high). However, the site was rated 3.4 compared with other communications strategies used during the outbreak. Almost half of all respondents (44.1%) visited the site at least once every few days. The two most common reasons the 30 respondents visited the Extranet were to access SARS Steering Committee minutes (63.3%) and to access Hamilton medical advisories (53.3%). The most commonly cited potential future uses for the Extranet were the sending of private emails to public health experts (63.3%), and surveillance (63.3%). No one encountered personal barriers in his or her use of the site, but several mentioned that time and duplication of email information were challenges.ConclusionDespite higher rankings of various communication strategies during the SARS outbreak, such as email, meetings, teleconferences, and other web sites, users generally perceived a local Extranet as a useful support for the dissemination of local information during public health emergencies.


Archives of General Psychiatry | 1987

Ontario child health study. II: Six-month prevalence of disorder and rates of service utilization

David R. Offord; Michael H. Boyle; Peter Szatmari; Naomi I. Rae-Grant; Paul S. Links; David Cadman; John A. Byles; John W. Crawford; Heather Munroe Blum; Carolyn Byrne; Helen Thomas; Christel A. Woodward


Health Education Research | 2006

Obesity prevention programs for children and youth: why are their results so modest?

Helen Thomas


Worldviews on Evidence-based Nursing | 2007

Public health decision makers’ informational needs and preferences for receiving research evidence

Maureen Dobbins; Susan M. Jack; Helen Thomas; Anita Kothari


Pediatrics | 1988

Ontario Child Health Study: Patterns of Ambulatory Medical Care Utilization and Their Correlates

Christel A. Woodward; Michael H. Boyle; David R. Offord; David Cadman; Paul S. Links; Heather Munroe-Blum; Carolyn Byrne; Helen Thomas


Journal of Child Psychology and Psychiatry | 1989

Methodologic Note for Child Epidemiological Surveys: The Effects of Instructions on Estimates of Behavior Prevalence

Christel A. Woodward; Helen Thomas; Michael H. Boyle; Paul S. Links; David R. Offord

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Paul S. Links

University of Western Ontario

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Peter Szatmari

Centre for Addiction and Mental Health

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