L L Roos
Datos Biográficos
| ID | 159397 |
|---|---|
| NOMBRE | L L Roos |
| NOMBRES | L L |
| APELLIDO | Roos |
| FIRMA | ROOS L L |
| AFILIACIONES | University of Manitoba |
| ORCID | 0000-0002-4215-8346 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 72 |
| TOTAL DE CITAS | 208 |
| TOTAL COMO AUTOR | 72 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1967 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 8 |
Helping people access benefits
Accessing these benefits has brought and could bring additional millions of unclaimed federal dollars to eligible individuals across Canada. There is still much to be done
Use of Medication to Treat Attention-Deficit/Hyperactivity Disorder in Young Children
Postpartum Depression and Anxiety Among Mothers Whose Child was Placed in Care of Child Protection Services at Birth
Avoidable mortality among parents whose children were placed in care in Sweden
BACKGROUND: Separation from one's child can have significant consequences for parental health and well-being. We aimed to investigate whether parents whose children were placed in care had higher rates of avoidable mortality. METHODS: Data were obtained from the Swedish national registers. Mortality rates among parents whose children were placed in care between 1990 and 2012 (17 503 mothers, 18 298 fathers) were compared with a 1:5 matched cohort…
Public housing and healthcare use
Maternal health and social outcomes after having a child taken into care
BACKGROUND: We investigated whether mothers experience changes to their health and social situation after having a child taken into care by child protection services, then compared these outcomes with those found in mothers whose children were not taken into care. METHODS: The cohort includes mothers whose first child was born in Manitoba between 1 April 1998 and 31 March 2011. Mothers whose children were taken into care after age 2 (n=1591) were…
Pediatric ambulatory care sensitive conditions
Social Context of Welfare in Manitoba, Canada
Health and social predictors of applications to public housing
BACKGROUND: Residents of public housing are often in poor health. However, it is unclear whether poor health precedes residency in public housing. We compared the health of people who applied to public housing to people who did not apply and had similar socioeconomic characteristics. METHODS: Population-based administrative databases from Manitoba, Canada, containing health, housing and income assistance information were used to identify a cohort…
What predictors matter
The association between the interpregnancy interval and autism spectrum disorder in a Canadian cohort
Adolescent outcomes and opportunities in a Canadian province
Our findings suggest a paradox: Canadian developmental outcomes through late adolescence appear quite similar to those in the United States, even though intergenerational mobility in Canada is closer to mobility in the Nordic countries than to that in the United States
Four Flavours of Health Expenditures
Different categories of services present different policy issues for financing health care. This conceptual paper suggests four categories: (1) public health services for the entire population; (2) basic health care to individuals, where anticipated costs are small and relatively homogeneous; (3) potentially catastrophically expensive services to individuals, where costs are skewed but not predictable; and (4) potentially catastrophically expensi…
What is Most Important
The role of ethnicity in predicting diabetes risk at the population level
Although from the individual risk perspective, incorporating information on ethnicity is important, when predicting new cases of diabetes at the population level and accounting for other risk factors, detailed ethnic information did not improve the discrimination and accuracy of the model or identify significantly more diabetes cases in the population
Child Health and Young Adult Outcomes
Previous research has shown a strong connection between birth weight and future child outcomes. But this research has not asked how insults to child health after birth affect long-term outcomes, whether health at birth matters primarily because it predicts future health or through some other mechanism, or whether health insults matter more at some key ages than at others? We address these questions using a unique data set based on public health i…
Short-, Medium-, and Long-Term Consequences of Poor Infant Health
We use administrative data on a sample of births between 1978 and 1985 to investigate the short, medium and long-term consequences of poor infant health. Our findings offer several advances to the existing literature on the effects of early infant health on subsequent health, education, and labor force attachment. First, we use a large sample of both siblings and twins, second we use a variety of measures of infant health, and finally we track ch…
From health research to social research
What You See Is What You Get
Neighbourhood, Family and Health Care
Mental health and the city
Canadian Health Reform
We analyze the gender impact of the current Canadian system of first-dollar health insurance by examining the use of physicians' services and acute-care hospital services in the Canadian province of Manitoba from April 1, 1997, to March 31, 1999. First, we describe the use by age and sex of healthcare resources offered with universal access at no cost to individuals. Second, we argue that women have a particular interest in maintaining single-pay…
Demographic Risk Factors for Fracture in First Nations People
A framework for modelling differences in regional mortality over time
Study objective: To present a conceptual framework for testing differences in mortality for small geographical areas over time using the generalised linear model with generalised estimating equations. This framework can be used to test whether the magnitude of regional inequalities in health status has changed over time. Design: A Poisson regression model for correlated data is used to investigate the relation of population health status to demog…
Policy analysis in an information-rich environment
Age-specific education and income gradients in morbidity and mortality in a Canadian province
Socioeconomic determinants of mortality in two Canadian provinces
Mental health and the city
Assessing data quality
Using computers to identify complications after surgery
We used the Health Services Commission data from Manitoba, Canada to identify complications resulting from hysterectomy, cholecystectomy, and prostatectomy which led to hospital readmissions. For each procedure, two specialists independently judged whether the readmissions were for surgery-related complications on the basis of liberally interpreted literature guidelines. Then, each pair of physicians met to resolve differences; only complications…
Policy analysis in an information-rich environment
From health research to social research
Monitoring childhood immunizations
In Manitoba, Canada, a centralized, computerized childhood immunization monitoring system serves a population with insured medical coverage; each individual has a unique identification number. All physicians bill a single payer, and specific billing codes are used to identify immunizations given by physicians and by public health nurses. Together with dates of service, this information is used to construct immunizations-to-date and age-at-immuniz…
High and low surgical rates
Patterns of surgical practice, the type of operations performed, and risk characteristics of elderly patients brought to surgery are examined in areas with differing surgical rates. This population-based analysis covering Manitoba's 56 rural hospital areas uses discharge claims filed routinely with the provincial Health Services Commission. One and a half times as much surgery was performed in high rate areas (115.2 procedures per 1,000 elderly) …
Delivering Equitable Care
Objectives. This study examined preventive care delivered in Manitoba during the 1990s by 3 different methods —childhood immunizations (by physicians and public health nurses under a government program), screening mammography (through a government program introduced in 1995), and cervical cancer screening (no program). Methods. Longitudinal administrative data, an immunization monitoring system, and Canadian census databases were used. Results. C…
Maternal health and social outcomes after having a child taken into care
BACKGROUND: We investigated whether mothers experience changes to their health and social situation after having a child taken into care by child protection services, then compared these outcomes with those found in mothers whose children were not taken into care. METHODS: The cohort includes mothers whose first child was born in Manitoba between 1 April 1998 and 31 March 2011. Mothers whose children were taken into care after age 2 (n=1591) were…
What You See Is What You Get
Health and social predictors of applications to public housing
BACKGROUND: Residents of public housing are often in poor health. However, it is unclear whether poor health precedes residency in public housing. We compared the health of people who applied to public housing to people who did not apply and had similar socioeconomic characteristics. METHODS: Population-based administrative databases from Manitoba, Canada, containing health, housing and income assistance information were used to identify a cohort…
What is Most Important
Neighbourhood, Family and Health Care
Supply, workload and utilization
This paper explores the relationships among physician supply, workload (output per physician), and utilization (physician services per capita) in rural Manitoba. Surgery taking place within a patient's home area and that taking place outside this area are discussed. Longitudinal and cross-sectional analyses are compared. Although the average surgeon does more surgical procedures than does the average general practitioner, the number of procedures…
Public housing and healthcare use
Pediatric ambulatory care sensitive conditions
Monitoring health reform
The Study of Elite Circulation
Hospital Performance
Steele, J. L. and W. H. McBroom. 1972 Conceptual and empirical dimensions of health behavior. Journal of Health and Social Behaviour 13 (December):382-392. Suchman, E. A., Bernard S. Phillips and Gordon Streib. 1958 An analysis of the validity of health questionnaires. Social Forces 36 (March):222. United States Department of Labor. 1965 Dictionary of Occupational Titles (3rd ed.), Vol. II. Wilson, R.N. 1970 The Sociology of Health. New York: Ran…
The role of ethnicity in predicting diabetes risk at the population level
Although from the individual risk perspective, incorporating information on ethnicity is important, when predicting new cases of diabetes at the population level and accounting for other risk factors, detailed ethnic information did not improve the discrimination and accuracy of the model or identify significantly more diabetes cases in the population
A framework for modelling differences in regional mortality over time
Study objective: To present a conceptual framework for testing differences in mortality for small geographical areas over time using the generalised linear model with generalised estimating equations. This framework can be used to test whether the magnitude of regional inequalities in health status has changed over time. Design: A Poisson regression model for correlated data is used to investigate the relation of population health status to demog…
Avoidable mortality among parents whose children were placed in care in Sweden
BACKGROUND: Separation from one's child can have significant consequences for parental health and well-being. We aimed to investigate whether parents whose children were placed in care had higher rates of avoidable mortality. METHODS: Data were obtained from the Swedish national registers. Mortality rates among parents whose children were placed in care between 1990 and 2012 (17 503 mothers, 18 298 fathers) were compared with a 1:5 matched cohort…
Four Flavours of Health Expenditures
Different categories of services present different policy issues for financing health care. This conceptual paper suggests four categories: (1) public health services for the entire population; (2) basic health care to individuals, where anticipated costs are small and relatively homogeneous; (3) potentially catastrophically expensive services to individuals, where costs are skewed but not predictable; and (4) potentially catastrophically expensi…
Secondary Analysis in the Developing Areas
Journal Article SECONDARY ANALYSIS IN THE DEVELOPING AREAS Get access LESLIE L. ROOS, JR., LESLIE L. ROOS, JR. Leslie L. Roos, Jr., is an NIH Postdoctoral Fellow, and Noralou P. Roos is a Woodrow Wilson Fellow, both at the Massachusetts Institute of Technology Search for other works by this author on: Oxford Academic Google Scholar NORALOU P. ROOS NORALOU P. ROOS Leslie L. Roos, Jr., is an NIH Postdoctoral Fellow, and Noralou P. Roos is a Woodrow…
Changing patterns of Turkish public administration
Turkey is one of the few developing nations whose political, economic, and social developments have been largely indigenous, influenced somewhat by foreign threats and foreign advice, but never by foreign domination. One author has noted that 'there is an uninterrupted chain that links the Kemalists to the Young Turks, to the men of the Tanzimat, and to the classical Ottoman Empire the sponsors of modernity in the twentieth century with the found…
Development versus Distribution
Administration in Federal Systems
Pollution, Regulation, and Evaluation
Understanding pollution is only partly a matter of becoming informed about technical variables and processes. It is also - or even predominantly - a matter of gaining knowledge about social and economic systems. As is the case with many other issues, we need to know why these systems "produce the results they do and how we can use understanding of them to produce more desirable ones" (Kneese, 1970: 190).The current emphasis on environmental probl…
Political Dynamics and Environmental Policy
The Study of Elite Circulation
The Focus of Comparative Inquiry
Hospital Performance
Steele, J. L. and W. H. McBroom. 1972 Conceptual and empirical dimensions of health behavior. Journal of Health and Social Behaviour 13 (December):382-392. Suchman, E. A., Bernard S. Phillips and Gordon Streib. 1958 An analysis of the validity of health questionnaires. Social Forces 36 (March):222. United States Department of Labor. 1965 Dictionary of Occupational Titles (3rd ed.), Vol. II. Wilson, R.N. 1970 The Sociology of Health. New York: Ran…
Quasi-experiments and environmental policy
Political coalition bargaining behaviour
Assessing the Impact of Tonsillectomies
This paper explores outcomes associated with the tonsillectomy operation using multiple control groups and a large claims-based data bank from the Canadian province of Manitoba. Given the difficulty of conducting large-scale clinical trials of common surgical procedures, the use of multiple methods for evaluating such interventions is both advocated and implemented in this study. When the data are restricted to respiratory diagnoses, the findings…
Alternative Designs to Study Outcomes The Tonsillectomy Case
This article explores the impact of the tonsillectomy operation using a large data base and several different approaches. The likely range of effects of the surgery and various threats to validity are studied from a quasi-experimental perspective. Information on possible patient self-selection for tonsil surgery is provided. Selection is dealt with from another viewpoint by comparing the outcomes of patients under the care of physicians having a …
"A Comment on "Continuity of Care
Continuity of Care
Continuity of care is defined and measured in terms of care received from a single physician, from several physicians practicing as a group and from physicians seen through referrals. All patients receiving tonsillectomy and adenoidectomy (T and As) in Manitoba for one year, as well as a group of similar individuals treated with respiratory illnesses but not having T and As, were studied. Several patient and physician characteristics were examine…
High and low surgical rates
Patterns of surgical practice, the type of operations performed, and risk characteristics of elderly patients brought to surgery are examined in areas with differing surgical rates. This population-based analysis covering Manitoba's 56 rural hospital areas uses discharge claims filed routinely with the provincial Health Services Commission. One and a half times as much surgery was performed in high rate areas (115.2 procedures per 1,000 elderly) …
Gallbladder Operations
Cholecystectomy is one of the most frequently performed elective surgical procedures, and a major contributor to surgery-associated mortality. The well-documented variation in surgical rates across geographic areas has been attributed not simply to differences in disease prevalence but to factors such as varying rates of clinical and radiologic investigation and use of different indications for surgical treatment. The research uses a large claims…
Surgical Rate Variations
Major unexplained variations in surgical rates have been documented across geographic areas over at least the last four decades. This paper attempts to assess the contribution that population characteristics make to these variations. Variations in surgical rates among the elderly across 56 small rural areas are compared with variations in characteristics of the elderly population of these areas including self-reported health status, levels of dis…
Issues in studying ancillary services
Supply, workload and utilization
This paper explores the relationships among physician supply, workload (output per physician), and utilization (physician services per capita) in rural Manitoba. Surgery taking place within a patient's home area and that taking place outside this area are discussed. Longitudinal and cross-sectional analyses are compared. Although the average surgeon does more surgical procedures than does the average general practitioner, the number of procedures…
Assessing Existing Technologies
An overview of the Manitoba study of common surgical procedures is presented. The research is oriented toward describing and explaining the outcomes of nine relatively common procedures, using longitudinal data from the Manitoba Health Services Commission's population registry, medical claims, and physician claims. The research approach recognizes differences among surgical procedures, tailoring the analyses to specific characteristics of a given…
Building Individual Histories With Registries
This study concentrates on utilizing registries and assessing their quality for population-based research. A method of successive comparisons is used to develop and update a summary record of coverage (length of time on the registry) and mortality for each individual in the Manitoba Health Services Commission data base. Various ways to ascertain the accuracy of the summary records are discussed. These techniques are validated by efforts to follow…
Surgical Rates and Mortality
When Surgical Rates Change
This research analyzes the changes in individual physician surgical workload and accompanying changes in surgical rates in Manitoba, Canada between 1974 and 1978. Data covering essentially all operations on provincial residents age 25 years and older were analyzed using information from the health insurance data base. The most dramatic change was a 50% rise in outpatient surgery. An overall pattern of increased specialization seemed to be emergin…
Using computers to identify complications after surgery
We used the Health Services Commission data from Manitoba, Canada to identify complications resulting from hysterectomy, cholecystectomy, and prostatectomy which led to hospital readmissions. For each procedure, two specialists independently judged whether the readmissions were for surgery-related complications on the basis of liberally interpreted literature guidelines. Then, each pair of physicians met to resolve differences; only complications…
Medicine (57 obras) · Population (36 obras) · Environmental health (32 obras) · Political science (26 obras) · Health care (25 obras) · Healthcare Policy and Management (23 obras) · Demography (22 obras) · Nursing (16 obras) · Business (15 obras) · Economics (15 obras)