Katrina Armstrong
Datos Biográficos
| ID | 3582644 |
|---|---|
| NOMBRE | Katrina Armstrong |
| NOMBRES | Katrina |
| APELLIDO | Armstrong |
| FIRMA | ARMSTRONG K |
| AFILIACIONES | University of Pennsylvania |
| ORCID | 0000-0001-5781-5970 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 23 |
| TOTAL DE CITAS | 97 |
| TOTAL COMO AUTOR | 23 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2006 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2025 |
| ÍNDICE H | 5 |
The Experience of Long Covid Among American Indian Individuals in Three Great Plains Communities
Long COVID may impact populations differently. In July 2023, at the direction of a community advisory board, we administered a cross-sectional survey to explore attitudes and experiences of long COVID among members of three American Indian Reservation communities in the Great Plains. Just over half of the 843 respondents considered long COVID to be an important issue in their community, an attitude that was associated with younger age, identifyin…
Factors Associated with Covid-19 Vaccination Uptake in Great Plains American Indian Communities
Covid-19 Testing Factors Among Great Plains American Indians
How Should Health Professions Educators and Organizations Desegregate Teaching and Learning Environments
Motivating health equity requires taking deliberate steps toward desegregating health care, especially in academic health centers. One step should incorporate rigorous measurement and assessment of patients' access to health services and ongoing collection and review of patients' health outcomes data. Another step should develop, fund, incorporate and administer initiatives with community members that address social determinants of community and …
Promoting equity in the use of algorithms for high-seas conservation
Validation of Molecular Pathology Codes for the Identification of Mutational Testing in Lung and Colon Cancer
BACKGROUND: Targeted therapy for patients with lung and colon cancer based on tumor molecular profiles is an important cancer treatment strategy, but the impact of gene mutation tests on cancer treatment and outcomes in large populations is not clear. In this study, we assessed the accuracy of an algorithm to identify tumor mutation testing in administrative claims data during a period before test-specific Current Procedural Terminology codes wer…
Increasing Disparities in Breast Cancer Mortality From 1979 to 2010 for US Black Women Aged 20 to 49 Years
Racial disparities in breast cancer mortality persist, and young Black women have higher disease incidence compared with White women. We compared trends in breast cancer mortality for young Black and White women with mortality trends for other common diseases from 1979 to 2010. In contrast to other cancers, ischemic heart disease, and stroke, the breast cancer mortality disparity has widened over the past 30 years, suggesting that unique aspects …
Racial Differences in False-positive Mammogram Rates
BACKGROUND: Mammography screening reduces breast cancer mortality, but false-positive tests are common. Few studies have assessed racial differences in false-positive rates. OBJECTIVES: We compared false-positive mammography rates for black and white women, and the effect of patient and facility characteristics on false positives. RESEARCH DESIGN AND SUBJECTS: A prospective cohort study. From a sample of the American College of Radiology Imaging …
The role of social capital in African-American women's use of mammography
Prior Experiences of Racial Discrimination and Racial Differences in Health Care System Distrust
PURPOSE: Factors contributing to racial differences in health care system distrust (HCSD) are currently unknown. Proposed potential contributing factors are prior experiences of racial discrimination and racial residential segregation. METHODS: Random digit dialing survey of 762 African American and 1267 white adults living in 40 US metropolitan statistical areas. Measures included the Revised Health Care System Distrust scale, the Experiences of…
Perceived Community Commitment of Hospitals
Hospitals assume broad social roles in their communities as major health service institutions, large employers, and in some cases as philanthropic organizations. These roles create perceptions about the community commitment of hospitals to a local community. How these perceptions toward hospitals influence patients' decisions in choosing a hospital for care and trust in the health care system more generally has not been explored. As part of a stu…
Cancer Patients’ Trade-offs Among Efficacy, Toxicity, and Out-of-Pocket Cost in the Curative and Noncurative Setting
BACKGROUND: When making treatment decisions, cancer patients must make trade-offs among efficacy, toxicity, and cost. However, little is known about what patient characteristics may influence these trade-offs. METHODS: A total of 400 cancer patients reviewed 2 of 3 stylized curative and noncurative scenarios that asked them to choose between 2 treatments of varying levels of efficacy, toxicity, and cost. Each scenario included 9 choice sets. Demo…
The Influence of Health Care Policies and Health Care System Distrust on Willingness to Undergo Genetic Testing
PURPOSE: As the potential role of genetic testing in disease prevention and management grows, so does concern about differences in uptake of genetic testing across social and racial groups. Characteristics of how genetic tests are delivered may influence willingness to undergo testing and, if they affect population subgroups differently, alter disparities in testing. METHODS: Conjoint analysis study of the effect of 3 characteristics of genetic t…
Racial Differences in Surgeons and Hospitals for Endometrial Cancer Treatment
PURPOSE: To determine whether (1) black and white women with endometrial cancer were treated by different surgical specialties and in different types of hospitals and (2) differences in specialty and hospital type contributed to racial differences in survival. METHODS: Retrospective cohort study of 12,307 women aged 65 years and older who underwent surgical treatment of endometrial cancer between 1991 and 1999 in the 11 Surveillance Epidemiology …
Racial Disparities in Changing to a High-volume Urologist Among Men With Localized Prostate Cancer
BACKGROUND: Patients who receive surgery from high-volume surgeons tend to have better outcomes. Black patients, however, are less likely to receive surgery from high-volume surgeons. OBJECTIVE: Among men with localized prostate cancer, we examined whether disparities in use of high-volume urologists resulted from racial differences in patients being diagnosed by high-volume urologists and/or changing to high-volume urologists for surgery. RESEAR…
Risk Perceptions, Worry, or Distrust
Racial Disparities in Stage-Specific Colorectal Cancer Mortality
Objectives. We examined whether racial disparities in stage-specific colorectal cancer survival changed between 1960 and 2005. Methods. We used US Mortality Multiple-Cause-of-Death Data Files and intercensal estimates to calculate standardized mortality rates by gender and race from 1960 to 2005. We used Surveillance, Epidemiology, and End Results (SEER) data to estimate stage-specific colorectal cancer survival. To account for SEER sampling unce…
Neighborhood racial composition, social capital and black all-cause mortality in Philadelphia
Differences in the Patterns of Health Care System Distrust Between Blacks and Whites
How Does Drug and Supplement Marketing Affect a Healthy Lifestyle
This research investigates consumer reactions to the marketing of drugs and supplements and the consequences for a healthy lifestyle. A series of experiments provides evidence that drug marketing undermines intentions to engage in health-protective behaviors (i.e., a boomerang effect). The boomerang arises from two psychological mechanisms: (1) drugs reduce risk perceptions and perceived importance of, and motivation to engage in, complementary h…
Racial/Ethnic Differences in Physician Distrust in the United States
Objectives. We examined the racial/ethnic and geographic variation in distrust of physicians in the United States. Methods. We obtained data from the Community Tracking Study, analyzing 20 sites where at least 5% of the population was Hispanic and 5% was Black. Results. In univariate analyses, Blacks and Hispanics reported higher levels of physician distrust than did Whites. Multivariate analyses, however, suggested a complex interaction among so…
Distrust of the health care system and self-reported health in the United States
Racial Differences in Trust in Health Care Providers
BACKGROUND: Although trust in health care providers (physicians, nurses, and others) may be lower among African Americans compared with whites, limited information is available on factors that are associated with low trust in these populations. This study evaluated the association between trust in health care providers and prior health care experiences, structural characteristics of health care, and sociodemographic factors among African American…
Racial/Ethnic Differences in Physician Distrust in the United States
Objectives. We examined the racial/ethnic and geographic variation in distrust of physicians in the United States. Methods. We obtained data from the Community Tracking Study, analyzing 20 sites where at least 5% of the population was Hispanic and 5% was Black. Results. In univariate analyses, Blacks and Hispanics reported higher levels of physician distrust than did Whites. Multivariate analyses, however, suggested a complex interaction among so…
Neighborhood racial composition, social capital and black all-cause mortality in Philadelphia
The role of social capital in African-American women's use of mammography
How Does Drug and Supplement Marketing Affect a Healthy Lifestyle
This research investigates consumer reactions to the marketing of drugs and supplements and the consequences for a healthy lifestyle. A series of experiments provides evidence that drug marketing undermines intentions to engage in health-protective behaviors (i.e., a boomerang effect). The boomerang arises from two psychological mechanisms: (1) drugs reduce risk perceptions and perceived importance of, and motivation to engage in, complementary h…
Racial Disparities in Stage-Specific Colorectal Cancer Mortality
Objectives. We examined whether racial disparities in stage-specific colorectal cancer survival changed between 1960 and 2005. Methods. We used US Mortality Multiple-Cause-of-Death Data Files and intercensal estimates to calculate standardized mortality rates by gender and race from 1960 to 2005. We used Surveillance, Epidemiology, and End Results (SEER) data to estimate stage-specific colorectal cancer survival. To account for SEER sampling unce…
Increasing Disparities in Breast Cancer Mortality From 1979 to 2010 for US Black Women Aged 20 to 49 Years
Racial disparities in breast cancer mortality persist, and young Black women have higher disease incidence compared with White women. We compared trends in breast cancer mortality for young Black and White women with mortality trends for other common diseases from 1979 to 2010. In contrast to other cancers, ischemic heart disease, and stroke, the breast cancer mortality disparity has widened over the past 30 years, suggesting that unique aspects …
Distrust of the health care system and self-reported health in the United States
Racial Differences in Trust in Health Care Providers
BACKGROUND: Although trust in health care providers (physicians, nurses, and others) may be lower among African Americans compared with whites, limited information is available on factors that are associated with low trust in these populations. This study evaluated the association between trust in health care providers and prior health care experiences, structural characteristics of health care, and sociodemographic factors among African American…
Racial/Ethnic Differences in Physician Distrust in the United States
Objectives. We examined the racial/ethnic and geographic variation in distrust of physicians in the United States. Methods. We obtained data from the Community Tracking Study, analyzing 20 sites where at least 5% of the population was Hispanic and 5% was Black. Results. In univariate analyses, Blacks and Hispanics reported higher levels of physician distrust than did Whites. Multivariate analyses, however, suggested a complex interaction among so…
Differences in the Patterns of Health Care System Distrust Between Blacks and Whites
How Does Drug and Supplement Marketing Affect a Healthy Lifestyle
This research investigates consumer reactions to the marketing of drugs and supplements and the consequences for a healthy lifestyle. A series of experiments provides evidence that drug marketing undermines intentions to engage in health-protective behaviors (i.e., a boomerang effect). The boomerang arises from two psychological mechanisms: (1) drugs reduce risk perceptions and perceived importance of, and motivation to engage in, complementary h…
Neighborhood racial composition, social capital and black all-cause mortality in Philadelphia
Risk Perceptions, Worry, or Distrust
Racial Disparities in Stage-Specific Colorectal Cancer Mortality
Objectives. We examined whether racial disparities in stage-specific colorectal cancer survival changed between 1960 and 2005. Methods. We used US Mortality Multiple-Cause-of-Death Data Files and intercensal estimates to calculate standardized mortality rates by gender and race from 1960 to 2005. We used Surveillance, Epidemiology, and End Results (SEER) data to estimate stage-specific colorectal cancer survival. To account for SEER sampling unce…
Racial Differences in Surgeons and Hospitals for Endometrial Cancer Treatment
PURPOSE: To determine whether (1) black and white women with endometrial cancer were treated by different surgical specialties and in different types of hospitals and (2) differences in specialty and hospital type contributed to racial differences in survival. METHODS: Retrospective cohort study of 12,307 women aged 65 years and older who underwent surgical treatment of endometrial cancer between 1991 and 1999 in the 11 Surveillance Epidemiology …
Racial Disparities in Changing to a High-volume Urologist Among Men With Localized Prostate Cancer
BACKGROUND: Patients who receive surgery from high-volume surgeons tend to have better outcomes. Black patients, however, are less likely to receive surgery from high-volume surgeons. OBJECTIVE: Among men with localized prostate cancer, we examined whether disparities in use of high-volume urologists resulted from racial differences in patients being diagnosed by high-volume urologists and/or changing to high-volume urologists for surgery. RESEAR…
The Influence of Health Care Policies and Health Care System Distrust on Willingness to Undergo Genetic Testing
PURPOSE: As the potential role of genetic testing in disease prevention and management grows, so does concern about differences in uptake of genetic testing across social and racial groups. Characteristics of how genetic tests are delivered may influence willingness to undergo testing and, if they affect population subgroups differently, alter disparities in testing. METHODS: Conjoint analysis study of the effect of 3 characteristics of genetic t…
Prior Experiences of Racial Discrimination and Racial Differences in Health Care System Distrust
PURPOSE: Factors contributing to racial differences in health care system distrust (HCSD) are currently unknown. Proposed potential contributing factors are prior experiences of racial discrimination and racial residential segregation. METHODS: Random digit dialing survey of 762 African American and 1267 white adults living in 40 US metropolitan statistical areas. Measures included the Revised Health Care System Distrust scale, the Experiences of…
Perceived Community Commitment of Hospitals
Hospitals assume broad social roles in their communities as major health service institutions, large employers, and in some cases as philanthropic organizations. These roles create perceptions about the community commitment of hospitals to a local community. How these perceptions toward hospitals influence patients' decisions in choosing a hospital for care and trust in the health care system more generally has not been explored. As part of a stu…
Cancer Patients’ Trade-offs Among Efficacy, Toxicity, and Out-of-Pocket Cost in the Curative and Noncurative Setting
BACKGROUND: When making treatment decisions, cancer patients must make trade-offs among efficacy, toxicity, and cost. However, little is known about what patient characteristics may influence these trade-offs. METHODS: A total of 400 cancer patients reviewed 2 of 3 stylized curative and noncurative scenarios that asked them to choose between 2 treatments of varying levels of efficacy, toxicity, and cost. Each scenario included 9 choice sets. Demo…
The role of social capital in African-American women's use of mammography
Increasing Disparities in Breast Cancer Mortality From 1979 to 2010 for US Black Women Aged 20 to 49 Years
Racial disparities in breast cancer mortality persist, and young Black women have higher disease incidence compared with White women. We compared trends in breast cancer mortality for young Black and White women with mortality trends for other common diseases from 1979 to 2010. In contrast to other cancers, ischemic heart disease, and stroke, the breast cancer mortality disparity has widened over the past 30 years, suggesting that unique aspects …
Racial Differences in False-positive Mammogram Rates
BACKGROUND: Mammography screening reduces breast cancer mortality, but false-positive tests are common. Few studies have assessed racial differences in false-positive rates. OBJECTIVES: We compared false-positive mammography rates for black and white women, and the effect of patient and facility characteristics on false positives. RESEARCH DESIGN AND SUBJECTS: A prospective cohort study. From a sample of the American College of Radiology Imaging …
Validation of Molecular Pathology Codes for the Identification of Mutational Testing in Lung and Colon Cancer
BACKGROUND: Targeted therapy for patients with lung and colon cancer based on tumor molecular profiles is an important cancer treatment strategy, but the impact of gene mutation tests on cancer treatment and outcomes in large populations is not clear. In this study, we assessed the accuracy of an algorithm to identify tumor mutation testing in administrative claims data during a period before test-specific Current Procedural Terminology codes wer…
Promoting equity in the use of algorithms for high-seas conservation
Factors Associated with Covid-19 Vaccination Uptake in Great Plains American Indian Communities
Covid-19 Testing Factors Among Great Plains American Indians
How Should Health Professions Educators and Organizations Desegregate Teaching and Learning Environments
Motivating health equity requires taking deliberate steps toward desegregating health care, especially in academic health centers. One step should incorporate rigorous measurement and assessment of patients' access to health services and ongoing collection and review of patients' health outcomes data. Another step should develop, fund, incorporate and administer initiatives with community members that address social determinants of community and …
The Experience of Long Covid Among American Indian Individuals in Three Great Plains Communities
Long COVID may impact populations differently. In July 2023, at the direction of a community advisory board, we administered a cross-sectional survey to explore attitudes and experiences of long COVID among members of three American Indian Reservation communities in the Great Plains. Just over half of the 843 respondents considered long COVID to be an important issue in their community, an attitude that was associated with younger age, identifyin…
Medicine (21 obras) · Demography (10 obras) · Gerontology (9 obras) · Psychology (9 obras) · Public health (9 obras) · Environmental health (8 obras) · Political science (8 obras) · Population (8 obras) · Cancer (7 obras) · Health care (7 obras)