Stanley Lemeshow
Biographic Data
| ID | 5208586 |
|---|---|
| NAME | Stanley Lemeshow |
| GIVEN NAMES | Stanley |
| FAMILY NAME | Lemeshow |
| SIGNATURE | LEMESHOW S |
| AFFILIATIONS | University of Massachusetts Amherst |
| VERIFIED | No |
| TOTAL WORKS | 21 |
| TOTAL CITATIONS | 33 |
| AUTHOR COUNT | 21 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1974 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 3 |
Socio-demographic differences in the dietary inflammatory index from National Health and Nutrition Examination Survey 2005–2018: A comparison of multiple imputation versus complete case analysis
Objective: Studies using the dietary inflammatory index often perform complete case analyses (CCA) to handle missing data, which may reduce the sample size and increase the risk of bias. Furthermore, population-level socio-economic differences in the energy-adjusted dietary inflammatory index (E-DII) have not been recently studied. Therefore, we aimed to describe socio-demographic differences in E-DII scores among American adults and compare the …
Applied Logistic Regression
Cancer Screening Practices Among Amish and Non-Amish Adults Living in Ohio Appalachia: Cancer Screening in Appalachia
PURPOSE: The Amish, a unique community living in Ohio Appalachia, have lower cancer incidence rates than non-Amish living in Ohio Appalachia. The purpose of this study was to examine cancer screening rates among Amish compared to non-Amish adults living in Ohio Appalachia and a national sample of adults of the same race and ethnicity in an effort to explain cancer patterns. METHODS: Face-to-face interviews focusing on perception of risk, cancer s…
Applied Survival Analysis: Regression Modeling of Time‐to‐Event Data
Tobacco Use Among the Amish in Holmes County, Ohio
Purpose: The objective of this study was to estimate tobacco use prevalence among the Amish in Holmes County, Ohio, using both self‐report and a biochemical marker of nicotine exposure. Methods: Amish adults (n = 134) were interviewed as part of a lifestyle study. Self‐reported tobacco use was measured using standardized questions, and cotinine was measured from a saliva sample. The prevalence of smoking, total tobacco use, and misclassification …
Depressive Symptoms, omega-6: Omega-3 Fatty Acids, and Inflammation in Older Adults
OBJECTIVE: To address how interactions between polyunsaturated fatty acid (PUFA) levels and depressive symptoms were related to proinflammatory cytokine synthesis. Depression and stress promote proinflammatory cytokine production. Dietary intakes of omega-3 (n-3) and omega-6 (n-6) PUFAs also influence inflammation; high n-6:n-3 ratios enhance proinflammatory cytokine production, although n-3 has anti-inflammatory properties. METHODS: Blood sample…
Goodness-of-fit Test for a Logistic Regression Model Fitted using Survey Sample Data
After a logistic regression model has been fitted, a global test of goodness of fit of the resulting model should be performed. A test that is commonly used to assess model fit is the Hosmer–Lemeshow test, which is available in Stata and most other statistical software programs. However, it is often of interest to fit a logistic regression model to sample survey data, such as data from the National Health Interview Survey or the National Health a…
Hostile Marital Interactions, Proinflammatory Cytokine Production, and Wound Healing
CONTEXT: A growing epidemiological literature has suggested that marital discord is a risk factor for morbidity and mortality. In addition, depression and stress are associated with enhanced production of proinflammatory cytokines that influence a spectrum of conditions associated with aging. OBJECTIVE: To assess how hostile marital behaviors modulate wound healing, as well as local and systemic proinflammatory cytokine production. DESIGN AND SET…
Statistical Model for Assessing the Impact of Targeted, School‐based Dental Sealant Programs on Sealant Prevalence Among Third Graders in Ohio
Not controlling for confounders can result in underestimation of the impact of targeted school sealant programs
Length of Stay Data as a Guide to Hospital Economic Performance for ICU Patients
CONTEXT: Length of stay data are increasingly used to monitor ICU economic performance. How such material is presented greatly affects its utility. OBJECTIVE: To develop a weighted length of stay index and to estimate expected length of stay. To assess alternative ways to summarize weighted length of stay to evaluate ICU economic performance. DESIGN: Retrospective database study. SUBJECTS: Data for 751 ICU patients in 1998 at two hospitals used t…
Applied Logistic Regression
In this revised and updated edition, the authors continue to provide an accessible introduction to the logistic regression model while incorporating advances of the last decade, including a variety of software packages for the analysis of data sets. They extend the discussion from biostatistics and epidemiology to cutting-edge applications in data mining and machine learning, guiding readers step-by-step through the use of modeling techniques for…
Applied Logistic Regression
Confidence Interval Estimation of Interaction
Relative excess risk due to interaction, the proportion of disease among those with both exposures that is attributable to their interaction, and the synergy index have been proposed as measures of interaction in epidemiologic studies. This paper presents the methodology for obtaining confidence interval estimates of these indices utilizing routinely available output from multiple logistic regression software.
The importance of assessing the fit of logistic regression models: A case study
BACKGROUND. The logistic regression model is being used with increasing frequency in all areas of public health research. In the calendar year 1989, over 30% of the articles published in the American Journal of Public Health employed some form of logistic regression modeling. In spite of this increase, there has been no commensurate increase in the use of commonly available methods for assessing model adequacy. METHODS. We review the current stat…
Explaining Variability of Cost Using a Severity-of-lllness Measure for ICU Patients
Factors related to hospital resource use by intensive care unit (ICU) patients, including severity of illness at admission and intensity of therapy during the first 24 ICU hours were explored in this study. Analysis was based on 2,749 patients admitted to the general medical-surgical ICU at Baystate Medical Center, Springfield, Massachusetts, between February 1, 1983 and January 10, 1985. Resource use was indexed by hospital length of stay (LOS) …
Best Subsets Logistic Regression
Selection of covariates is an important step in any regression modeling situation. An effective strategy when the model is a linear regression with normal errors is to use a software package that implements a best subsets selection algorithm. A number of years ago Lawless and Singhal (1978) proposed a method for efficiently screening nonnormal regression models, thus providing the basis for best subsets nonlinear regression. Recently Lawless and …
Two-Year Outcome of Adult Intensive Care Patients
Five hundred fifty-eight patients admitted to a general/medical surgical intensive care unit were studied 2 years after hospital discharge to determine whether they were still alive, were able to perform daily activities, and had returned to work. The overall 2-year survivorship (hospital and long-term) was 63.5%. Two-year survival was considerably lower for patients with certain condition or treatment characteristics than for others. This ranged…
A Review of Goodness of Fit Statistics for Use in the Development of Logistic Regression Models1
Several statistics have recently been proposed for the purpose of assessing the goodness of fit of an estimated logistic regression model. These statistics are reviewed and compared to other, less formal, procedures in the context of applications in epidemiologic research. One statistic is recommended for use and its computation is illustrated using data from a recent study of mortality of intensive care unit patients.
A longitudinal study of blood pressure in a national survey of children
Blood pressure changes over a three- to four-year period were studies in a cohort of 2,168 children examined during the US Heath Examination Survey. The sample used is a representative subset of a national probability sample. Significant positive correlations between initial and follow-up blood pressures were observed. In addition, relatively obese children tended to demonstrate higher blood pressures within age-race-sex specific subgroups
Factors Affecting Trauma Center Utilization in Illinois
The Illinois Trauma System has served as a prototype for many of the advanced emergency medical services systems developed during the past decade. The Illinois Trauma Study uses a cross-sectional research design to assess the trauma patient utilization patterns at hospitals in Illinois. Data were collected from 33 Trauma Centers and 43 nonsystem hospitals for the time interval July 1973-June 1974. Results indicated that 45.5 per cent of patients …
Skinfold thicknesses in a national probability sample of U.S. males and females aged 6 through 17 years
Cycles II and III of the Health Examination Survey included measurements of the skinfolds of over 14,000 individuals 6 through 17 years of age, statistically weighted to provide an accurate national probability sample. Analyses of the triceps and subscapular skinfolds of Negroes and whites are reported here, utilizing the median in preference to the mean. Females of either racial group have thicker skinfolds at all ages studied. Whites have great…
The importance of assessing the fit of logistic regression models: A case study
BACKGROUND. The logistic regression model is being used with increasing frequency in all areas of public health research. In the calendar year 1989, over 30% of the articles published in the American Journal of Public Health employed some form of logistic regression modeling. In spite of this increase, there has been no commensurate increase in the use of commonly available methods for assessing model adequacy. METHODS. We review the current stat…
Skinfold thicknesses in a national probability sample of U.S. males and females aged 6 through 17 years
Cycles II and III of the Health Examination Survey included measurements of the skinfolds of over 14,000 individuals 6 through 17 years of age, statistically weighted to provide an accurate national probability sample. Analyses of the triceps and subscapular skinfolds of Negroes and whites are reported here, utilizing the median in preference to the mean. Females of either racial group have thicker skinfolds at all ages studied. Whites have great…
A longitudinal study of blood pressure in a national survey of children
Blood pressure changes over a three- to four-year period were studies in a cohort of 2,168 children examined during the US Heath Examination Survey. The sample used is a representative subset of a national probability sample. Significant positive correlations between initial and follow-up blood pressures were observed. In addition, relatively obese children tended to demonstrate higher blood pressures within age-race-sex specific subgroups
Applied Logistic Regression
Skinfold thicknesses in a national probability sample of U.S. males and females aged 6 through 17 years
Cycles II and III of the Health Examination Survey included measurements of the skinfolds of over 14,000 individuals 6 through 17 years of age, statistically weighted to provide an accurate national probability sample. Analyses of the triceps and subscapular skinfolds of Negroes and whites are reported here, utilizing the median in preference to the mean. Females of either racial group have thicker skinfolds at all ages studied. Whites have great…
Factors Affecting Trauma Center Utilization in Illinois
The Illinois Trauma System has served as a prototype for many of the advanced emergency medical services systems developed during the past decade. The Illinois Trauma Study uses a cross-sectional research design to assess the trauma patient utilization patterns at hospitals in Illinois. Data were collected from 33 Trauma Centers and 43 nonsystem hospitals for the time interval July 1973-June 1974. Results indicated that 45.5 per cent of patients …
A Review of Goodness of Fit Statistics for Use in the Development of Logistic Regression Models1
Several statistics have recently been proposed for the purpose of assessing the goodness of fit of an estimated logistic regression model. These statistics are reviewed and compared to other, less formal, procedures in the context of applications in epidemiologic research. One statistic is recommended for use and its computation is illustrated using data from a recent study of mortality of intensive care unit patients.
A longitudinal study of blood pressure in a national survey of children
Blood pressure changes over a three- to four-year period were studies in a cohort of 2,168 children examined during the US Heath Examination Survey. The sample used is a representative subset of a national probability sample. Significant positive correlations between initial and follow-up blood pressures were observed. In addition, relatively obese children tended to demonstrate higher blood pressures within age-race-sex specific subgroups
Two-Year Outcome of Adult Intensive Care Patients
Five hundred fifty-eight patients admitted to a general/medical surgical intensive care unit were studied 2 years after hospital discharge to determine whether they were still alive, were able to perform daily activities, and had returned to work. The overall 2-year survivorship (hospital and long-term) was 63.5%. Two-year survival was considerably lower for patients with certain condition or treatment characteristics than for others. This ranged…
Best Subsets Logistic Regression
Selection of covariates is an important step in any regression modeling situation. An effective strategy when the model is a linear regression with normal errors is to use a software package that implements a best subsets selection algorithm. A number of years ago Lawless and Singhal (1978) proposed a method for efficiently screening nonnormal regression models, thus providing the basis for best subsets nonlinear regression. Recently Lawless and …
Explaining Variability of Cost Using a Severity-of-lllness Measure for ICU Patients
Factors related to hospital resource use by intensive care unit (ICU) patients, including severity of illness at admission and intensity of therapy during the first 24 ICU hours were explored in this study. Analysis was based on 2,749 patients admitted to the general medical-surgical ICU at Baystate Medical Center, Springfield, Massachusetts, between February 1, 1983 and January 10, 1985. Resource use was indexed by hospital length of stay (LOS) …
The importance of assessing the fit of logistic regression models: A case study
BACKGROUND. The logistic regression model is being used with increasing frequency in all areas of public health research. In the calendar year 1989, over 30% of the articles published in the American Journal of Public Health employed some form of logistic regression modeling. In spite of this increase, there has been no commensurate increase in the use of commonly available methods for assessing model adequacy. METHODS. We review the current stat…
Confidence Interval Estimation of Interaction
Relative excess risk due to interaction, the proportion of disease among those with both exposures that is attributable to their interaction, and the synergy index have been proposed as measures of interaction in epidemiologic studies. This paper presents the methodology for obtaining confidence interval estimates of these indices utilizing routinely available output from multiple logistic regression software.
Applied Logistic Regression
Applied Logistic Regression
In this revised and updated edition, the authors continue to provide an accessible introduction to the logistic regression model while incorporating advances of the last decade, including a variety of software packages for the analysis of data sets. They extend the discussion from biostatistics and epidemiology to cutting-edge applications in data mining and machine learning, guiding readers step-by-step through the use of modeling techniques for…
Statistical Model for Assessing the Impact of Targeted, School‐based Dental Sealant Programs on Sealant Prevalence Among Third Graders in Ohio
Not controlling for confounders can result in underestimation of the impact of targeted school sealant programs
Length of Stay Data as a Guide to Hospital Economic Performance for ICU Patients
CONTEXT: Length of stay data are increasingly used to monitor ICU economic performance. How such material is presented greatly affects its utility. OBJECTIVE: To develop a weighted length of stay index and to estimate expected length of stay. To assess alternative ways to summarize weighted length of stay to evaluate ICU economic performance. DESIGN: Retrospective database study. SUBJECTS: Data for 751 ICU patients in 1998 at two hospitals used t…
Hostile Marital Interactions, Proinflammatory Cytokine Production, and Wound Healing
CONTEXT: A growing epidemiological literature has suggested that marital discord is a risk factor for morbidity and mortality. In addition, depression and stress are associated with enhanced production of proinflammatory cytokines that influence a spectrum of conditions associated with aging. OBJECTIVE: To assess how hostile marital behaviors modulate wound healing, as well as local and systemic proinflammatory cytokine production. DESIGN AND SET…
Goodness-of-fit Test for a Logistic Regression Model Fitted using Survey Sample Data
After a logistic regression model has been fitted, a global test of goodness of fit of the resulting model should be performed. A test that is commonly used to assess model fit is the Hosmer–Lemeshow test, which is available in Stata and most other statistical software programs. However, it is often of interest to fit a logistic regression model to sample survey data, such as data from the National Health Interview Survey or the National Health a…
Depressive Symptoms, omega-6: Omega-3 Fatty Acids, and Inflammation in Older Adults
OBJECTIVE: To address how interactions between polyunsaturated fatty acid (PUFA) levels and depressive symptoms were related to proinflammatory cytokine synthesis. Depression and stress promote proinflammatory cytokine production. Dietary intakes of omega-3 (n-3) and omega-6 (n-6) PUFAs also influence inflammation; high n-6:n-3 ratios enhance proinflammatory cytokine production, although n-3 has anti-inflammatory properties. METHODS: Blood sample…
Applied Survival Analysis: Regression Modeling of Time‐to‐Event Data
Tobacco Use Among the Amish in Holmes County, Ohio
Purpose: The objective of this study was to estimate tobacco use prevalence among the Amish in Holmes County, Ohio, using both self‐report and a biochemical marker of nicotine exposure. Methods: Amish adults (n = 134) were interviewed as part of a lifestyle study. Self‐reported tobacco use was measured using standardized questions, and cotinine was measured from a saliva sample. The prevalence of smoking, total tobacco use, and misclassification …
Cancer Screening Practices Among Amish and Non-Amish Adults Living in Ohio Appalachia: Cancer Screening in Appalachia
PURPOSE: The Amish, a unique community living in Ohio Appalachia, have lower cancer incidence rates than non-Amish living in Ohio Appalachia. The purpose of this study was to examine cancer screening rates among Amish compared to non-Amish adults living in Ohio Appalachia and a national sample of adults of the same race and ethnicity in an effort to explain cancer patterns. METHODS: Face-to-face interviews focusing on perception of risk, cancer s…
Applied Logistic Regression
Socio-demographic differences in the dietary inflammatory index from National Health and Nutrition Examination Survey 2005–2018: A comparison of multiple imputation versus complete case analysis
Objective: Studies using the dietary inflammatory index often perform complete case analyses (CCA) to handle missing data, which may reduce the sample size and increase the risk of bias. Furthermore, population-level socio-economic differences in the energy-adjusted dietary inflammatory index (E-DII) have not been recently studied. Therefore, we aimed to describe socio-demographic differences in E-DII scores among American adults and compare the …
Medicine (14 works) · Statistics (10 works) · Mathematics (9 works) · Logistic regression (8 works) · Demography (6 works) · Internal Medicine (6 works) · Internal Medicine (5 works) · Population (5 works) · Advanced Statistical Methods and Models (4 works) · Computer Science (4 works)