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Doug Manuel

Publications and source records attributed to Doug Manuel.

8 recordsLinked to original sources
PubMed2006

Validation of the Provincial Transfer Authorization Centre database: a comprehensive database containing records of all inter-facility patient transfers in the province of Ontario.

BACKGROUND: The Provincial Transfer Authorization Centre (PTAC) was established as a part of the emergency response in Ontario, Canada to the Severe Acute Respiratory Syndrome (SARS) outbreak in 2003. Prior to 2003, data relating to inter-facility patient transfers were not collected in a systematic manner. Then, in an emergency setting, a comprehensive database with a complex data collection process was established. For the first time in Ontario, population-based data for patient movement between healthcare facilities for a population of twelve million are available. The PTAC database stores all patient transfer data in a large database. There are few population-based patient transfer databases and the PTAC database is believed to be the largest example to house this novel dataset. A patient transfer database has also never been validated. This paper presents the validation of the PTAC database. METHODS: A random sample of 100 patient inter-facility transfer records was compared to the corresponding institutional patient records from the sending healthcare facilities. Measures of agreement, including sensitivity, were calculated for the 12 common data variables. RESULTS: Of the 100 randomly selected patient transfer records, 95 (95%) of the corresponding institutional patient records were located. Data variables in the categories patient demographics, facility identification and timing of transfer and reason and urgency of transfer had strong agreement levels. The 10 most commonly used data variables had accuracy rates that ranged from 85.3% to 100% and error rates ranging from 0 to 12.6%. These same variables had sensitivity values ranging from 0.87 to 1.0. CONCLUSION: The very high level of agreement between institutional patient records and the PTAC data for fields compared in this study supports the validity of the PTAC database. For the first time, a population-based patient transfer database has been established. Although it was created during an emergency situation and data collection is dependent on front-line medical workers, the PTAC data has achieved a high level of validity, perhaps even higher than many purpose built databases created during non-emergency settings.

Database Management Systems↗
PubMed2006

Measuring population health: a review of indicators.

This article reviews the historical development of population health indicators. We have long known that environmental, socioeconomic, early life conditions, individual actions, and medical care all interact to affect health. Present quantitative reporting on the impact of these factors on population health grew out of Bills of Mortality published in the 1500s. Since then, regular censuses, civil registration of vital statistics, and international classification systems have improved data quality and comparability. Regular national health interview surveys and application of administrative data contributed information on morbidity, health services use, and some social determinants of health. More recently, traditional health databases and datasets on "nonhealth" sector determinants have been linked. Statistical methods for map-making, risk adjustment, multilevel analysis, calculating population-attributable risks, and summary measures of population health have further helped to integrate information. Reports on the health of populations remain largely confined to focused areas. This paper suggests a conceptual framework for using indicators to report on all the domains of population health. Future ethical development of indicators will incorporate principles of justice, transparency, and effectiveness.

Canada↗
PubMed2006

Volume matters: physician practice characteristics and immunization coverage among young children insured through a universal health plan.

OBJECTIVES: We studied the association between immunization coverage for a cohort of 2-year-old children covered by a universal health insurance plan and pediatric provider and other health services characteristics. METHODS: We assembled a cohort of 101,570 infants born in urban areas in Ontario, Canada, between July 1, 1997, and June 31, 1998. Children were considered to have up-to-date (UTD) immunization coverage if they had > or =5 immunizations by 2 years of age, ie, the recommended 3 doses and 1 booster of diphtheria-polio-tetanus-pertussis/Haemophilus influenzae type b vaccine and 1 dose of measles-mumps-rubella vaccine. Provider practice characteristics were derived from outpatient billing records, and 1996 census data were used to derive neighborhood income quintiles. The association between UTD immunization status and provider characteristics was assessed with multilevel regression models, controlling for patient characteristics. RESULTS: Overall, the rate of complete UTD immunization coverage was low (66.3%) despite a large number of primary care visits (median: 19 visits). Children whose usual provider had a low volume of pediatric primary care were less than one half as likely to be UTD. Other factors associated with not being UTD included very low continuity of care, low continuity of care, and usual provider in practice for <5 years. With adjustment for patient and provider characteristics, there was no difference in immunization coverage for general practitioners versus pediatricians. Children from low-income neighborhoods were less likely to be UTD. CONCLUSIONS: Despite universal access to primary care services, rates of complete immunization coverage among 2-year-old children in Ontario are low. Because visit rates are high, primary care reform should include interventions directed at provider immunization practices to reduce missed opportunities.

Child, Preschool↗
PubMed2005

Regional variation in self-reported heart disease prevalence in Canada.

BACKGROUND: Cardiovascular disease is the leading cause of death in Canada. OBJECTIVE: To provide an analysis of the self-reported prevalence of heart disease and three specific cardiac conditions--myocardial infarction (MI), angina and congestive heart failure (CHF)--in subgroups of the Canadian population. METHODS: Data from the Public Use Microdata File from Statistics Canada's 2000/2001 Canadian Community Health Survey (CCHS) were used to estimate the crude self-reported prevalence of heart disease, MI, angina and CHF in Canada. The data are reported by age and sex groups, as well as by province or territory and health region. RESULTS: Based on the 2000/2001 CCHS data, it was estimated that among Canadians 12 years of age and older, 5.0% (n=1,286,000) have heart disease, 2.1% (n=537,000) have had a heart attack, 1.9% (n=483,000) have angina and 1.0% (n=264,000) have CHF. Marked variation in the prevalence of heart disease and the other specific cardiac conditions exists across age and sex groups, and across geographical regions. The prevalence of heart disease is low among those younger than 50 years; thereafter, the prevalence of heart disease increases and is more common among men than among women. By 70 years of age, at least one in four men and one in five women report having heart disease. Large differences in the burden of heart disease were observed across provinces, territories and health regions. Comparison of the highest and lowest prevalence rates among provinces and territories revealed a 1.9-fold difference for heart disease, a 2.8-fold difference for MI, a 2.3-fold difference for angina and a 3.3-fold difference for CHF. CONCLUSIONS: Large regional differences in the prevalence of heart disease and other specific cardiac conditions were observed across Canada. These data may assist health system planners to identify those regions and population subgroups most affected by heart disease, and to support the development of heart disease prevention and treatment programs.

Adolescent↗
PubMedDate not supplied

New approaches to immigrant health assessment.

While immigrant subgroups may present vulnerabilities in terms of health status, health service use, and social determinants, comprehensive information on their health is lacking. To examine mortality (1980-1998) and health service utilization (1985-2002) patterns in Canadian immigrants, a record linkage pan-Canadian research initiative using immigration and health databases has been undertaken. Preliminary results indicate that overall mortality is low among Canadian immigrants as compared to the general population for most leading causes (thus supporting the notion of "healthy immigrant effect"), with cause-specific exceptions. Moreover, results from British Columbia show that overall physician visits are low for immigrants, but not for all subgroups. Results from Ontario demonstrate a sharp increase in physician claims approximately three months following landing. Future analyses will address the short- and long-term health outcomes of immigrant subgroups, including less common diseases. Results are pertinent to practitioners working with immigrants and can inform immigrant health policy.

Canada↗