Colorblind Racial Ideology and Physician Use of Race in Medical Decision-Making.

BACKGROUND: Colorblindness is a racial ideology that minimizes the role of systemic racism in shaping outcomes for racial minorities. Physicians who embrace colorblindness may be less likely to interrogate the role of racism in generating health disparities and less likely to challenge race-based treatment. This study evaluates the association between physician colorblindness and the use of race in medical decision-making. METHODS: This is a cross-sectional survey study, conducted in September 2019, of members of the Minnesota Academy of Family Physicians. The survey included demographic and practice questions and two measures: Color-blind Racial Attitudes Scale (CoBRAS; measuring unawareness of racial privilege, institutional discrimination, and blatant racial issues) and Racial Attributes in Clinical Evaluation (RACE; measuring the use of race in medical decision-making). Multivariable regression analyses assessed the relationship between CoBRAS and RACE. RESULTS: Our response rate was 17% (267/1595). In a multivariable analysis controlling for physician demographic and practice characteristics, CoBRAS scores were positively associated with RACE (ß = 0.05, p = 0.02). When CoBRAS subscales were used in place of the overall CoBRAS score, only unawareness of institutional discrimination was positively associated with RACE (ß = 0.18, p = 0.01). CONCLUSIONS: Physicians who adhere to a color blind racial ideology, particularly those who deny institutional racism, are more likely to use race in medical decision-making. As the use of race may be due to a colorblind racial ideology, and therefore due to a poor understanding of how systemic racism affects health, more physician education about racism as a health risk is needed.

A Longitudinal Study Exploring Learning Environment Culture and Subsequent Risk of Burnout Among Resident Physicians Overall and by Gender.

OBJECTIVE: To explore the relationship between learning environment culture and the subsequent risk of developing burnout in a national sample of residents overall and by gender. METHODS: From April 7 to August 2, 2016, and May 26 to August 5, 2017, we surveyed residents in their second (R2) and third (R3) postgraduate year. The survey included a negative interpersonal experiences scale (score range 1 to 7 points, higher being worse) assessing psychological safety and bias, inclusion, respect, and justice; an unfair treatment scale (score range 1 to 5 points, higher being worse), and two items from the Maslach Burnout Inventory. Individual responses to the R2 and R3 surveys were linked. RESULTS: The R2 survey was completed by 3588 of 4696 (76.4%) residents; 3058 of 3726 (82.1%) residents completed the R3 survey; and 2888 residents completed both surveys. Women reported more negative interpersonal experiences (mean [SD], 3.00 [0.83] vs 2.90 [0.85], P<.001) and unfair treatment (66.5% vs. 58.7%, P<.001) than men at R2. On multivariable analysis, women at R3 were more likely than their male counterparts to have burnout (odds ratio, 1.23; 95% CI, 1.02 to 1.48; P=.03). Both men and women who reported more negative interpersonal experiences at R2 were more likely to have burnout at R3 (odds ratio, 1.32; 95% CI, 1.14 to 1.52; P<.001). The factors contributing to burnout did not vary in effect magnitude by gender. CONCLUSION: These findings indicate women residents are more likely to have burnout relative to men in the third year of residency. Negative culture predicted subsequent burnout 1 year later among both men and women. Differences in burnout were at least partly due to differing levels of exposure to negative interactions for men versus women rather than a negative interaction having a differential impact on the well-being of men versus women.

Applying a Race(ism)-Conscious Adaptation of the CFIR Framework to Understand Implementation of a School-Based Equity-Oriented Intervention.

Objectives: To use the Consolidated Framework for Implementation Research (CFIR) adapted to a race-conscious frame to understand ways that structural racism interacts with intervention implementation and uptake within an equity-oriented trial designed to enhance student-school connectedness. Design: Secondary analysis of qualitative implementation data from Project TRUST (Training for Resiliency in Urban Students and Teachers), a hybrid effectiveness-implementation, community-based participatory intervention. Setting: Ten schools across one urban school district. Methods: We analyzed qualitative observational field notes, youth and parent researcher reflections, and semi-structured interviews with community-academic researchers and school-based partners within CFIR constructs based on framing questions using a Public Health Critical Race Praxis approach. Results: Within most CFIR constructs and sub-constructs, we identified barriers to implementation uptake not previously recognized using standard race-neutral definitions. Themes that crossed constructs included: 1) Leaders' willingness to examine Black, Indigenous, People of Color (BIPOC) student and parent experiences of school discrimination and marginalization had a cascading influence on multiple factors related to implementation uptake; 2) The race/ethnicity of the principals was related to intervention engagement and intervention uptake, particularly at the extremes, but the relationship was complex; 3) External change agents from BIPOC communities facilitated intervention uptake in indirect but significant ways; 4) Highly networked implementation champions had the ability to enhance commitment to intervention uptake; however, perceptions of these individuals and the degree to which they were networked was highly racialized. Conclusions: Equity-oriented interventions should consider structural racism within the CFIR model to better understand intervention uptake.

This, Too, Is What Racism Feels Like.

After George Floyd's killing, a physician reflects on how the health effects of racism become embodied for her and other Black Americans.

Veterans' perceptions of racial bias in VA mental healthcare and their impacts on patient engagement and patient-provider communication.

OBJECTIVES: Drawing from social identity threat theory, which posits that stigmatized groups are attuned to situational cues that signal racial bias, we examined how African-American veterans evaluate verbal and non-verbal cues in their mental health encounters. We also explored how their evaluations of perceived racial bias might influence their healthcare engagement behaviors and communication. METHODS: We interviewed 85 African-American veterans who were receiving mental health services from the US Department of Veterans Affairs (VA), examining their views and experiences of race in healthcare. We analyzed the data using a constructivist grounded theory approach. RESULTS: Participants identified several identity threatening cues that include lack of racial diversity representation in healthcare settings, and perceptions of providers' fears of Black patients. We describe how participants evaluated situational cues as identity threats, and how these cues affected their engagement behaviors and healthcare communication. CONCLUSION: Our findings revealed situational cues within clinical encounters that create for Black veterans, fear of being negatively judged based on stereotypes that have characterized African-Americans. PRACTICE IMPLICATIONS: We discuss the implications of these findings and provide suggestions on how to create identity safe environments for minority patients that include delivery of person-centered care, and organizational structures that reduce providers' burnout.

Veterans Affairs Providers' Beliefs About the Contributors to and Responsibility for Reducing Racial and Ethnic Health Care Disparities.

Purpose: Providers' beliefs about the causes of disparities and the entities responsible for addressing these disparities are important in designing disparity-reduction interventions aimed at providers. This secondary analysis of a larger study is aimed at evaluating perceptions of providers regarding the underlying causes of racial health care disparities and their views of who is responsible for reducing them. Methods: We surveyed 232 providers at 3 Veterans Affairs (VA) Medical Centers. Results: Sixty-nine percent of participants believed that minority patients in the United States receive lower quality health care. Most participants (64%) attributed differences in quality of care for minority patients in the VA health care system primarily to patients' socioeconomic status, followed by patient behavior (43%) and provider behaviors (33%). In contrast, most participants believed that the VA and other health care organizations (75%) and providers (70%) bear the responsibility for reducing disparities, while less than half (45%) believed that patients were responsible. Among provider-level contributors to disparities, providers' poor communication was the most widely endorsed (48%), while differences in prescribing of medications (13%) and in provision of specialty referrals (12%) were the least endorsed. Conclusions: Although most providers in the study did not believe that providers contribute to disparities, they do believe that they, along with health care organizations, have the responsibility to help reduce them. Interventions might focus on directly offering providers concrete ways that they can help reduce disparities, rather than focusing on simply raising awareness about disparities and their contributions to them.

Cardiologists' Perspectives on Race-Based Drug Labels and Prescribing Within the Context of Treating Heart Failure.

Purpose: Cardiologists are known to consider patients' race when treating heart failure, but their views on the benefits and harms of this practice are largely undocumented. We set out to explore cardiologists' perspectives on the benefits and harms of race-based drug labels and guidelines. Specifically, we focused on isosorbide dinitrate and hydralazine hydrochloride (sold in a patented form as BiDil), a combination of drugs recommended for the treatment of black patients receiving optimal medical therapy for symptomatic heart failure and reduced ejection fraction. Methods: We conducted 81 semistructured interviews at an American College of Cardiology Annual meeting to assess cardiologists' and cardiology fellows' attitudes toward the use of race in drug prescribing. Investigators reviewed and coded the interviews using inductive qualitative analysis techniques. Results: Many participants believed that race-based drug labels might help doctors prescribe effective medications to patients sooner. More than half of the participants expressed concerns, however, that considering race within the context of treating heart failure could potentially harm patients as well. Harms identified included the likelihood that patients who could benefit from a drug may not receive it because of their race; insufficient understanding about gene-drug-environment interactions; and simplistic applications of race in the clinic. Conclusions: Few participants expressed approval of using race in drug prescribing without recognizing the potential harms, yet most participants stated that they continue to consider race when prescribing isosorbide dinitrate and hydralazine hydrochloride. Within the context of treating heart failure, more open discussions about the benefits and harms of race-based drug labels and prescribing are needed to address cardiologists' concerns.

Association of Racial Bias With Burnout Among Resident Physicians.

Importance: Burnout, a syndrome characterized by emotional exhaustion, depersonalization, and a decreased sense of efficacy, is common among resident physicians, and negative emotional states may increase the expression of prejudices, which are associated with racial disparities in health care. Whether racial bias varies by symptoms of burnout among resident physicians is unknown. Objective: To assess the association between burnout and explicit and implicit racial biases toward black people in resident physicians. Design, Setting, and Participants: This cohort study obtained data from surveys completed by first-year medical students and resident physicians in the United States as part of the Cognitive Habits and Growth Evaluation Study. Participants were followed up from enrollment in 2010 to 2011 through 2017. Participants completed questionnaires at year 4 of medical school as well as at the second and third years of residency. Only data from resident physicians who self-identified as belonging to a racial group other than black (n = 3392) were included in the analyses because of scarce evidence of racial bias in the care provided to black patients by black physicians. Resident physicians training in radiology or pathology were excluded because they provided less direct patient interaction. Main Outcomes and Measures: Burnout symptoms were measured by 2 single-item measures from the Maslach Burnout Inventory. Explicit attitudes about white and black people were measured by a feeling thermometer (FT, from 0 to 100 points, ranging from very cold or unfavorable [lowest score] to very warm or favorable [highest score]; included in the second-year [R2] and third-year [R3] questionnaires). The R2 Questionnaire included a racial Implicit Association Test (IAT; range: -2 to 2). Results: Among the 3392 nonblack resident physician respondents, 1693 (49.9%) were male, 1964 (57.9%) were younger than 30 years, and 2362 (69.6%) self-identified as belonging to the white race. In this cohort, 1529 of 3380 resident physicians (45.2%) had symptoms of burnout and 1394 of 3377 resident physicians (41.3%) had depression. From this group, 12 did not complete the burnout items and 15 did not complete the Patient-Reported Outcomes Measurement Information System (PROMIS) items. The mean (SD) FT score toward black people was 77.9 (21.0) and toward white people was 81.1 (20.1), and the mean (SD) racial IAT score was 0.4 (0.4). Burnout at the R2 Questionnaire time point was associated with greater explicit and implicit racial biases. In multivariable analyses adjusting for demographics, specialty, depression, and FT scores toward white people, resident physicians with burnout had greater explicit racial bias (difference in FT score, -2.40; 95% CI, -3.42 to -1.37; P < .001) and implicit racial bias (difference in IAT score, 0.05; 95% CI, 0.02-0.08; P = .002). A dose-response association was found between change in depersonalization from R2 to R3 Questionnaire and R3 Questionnaire explicit bias (for each 1-point increase the difference in R3 FT score decreased, -0.73; 95% CI, -1.23 to -0.23; P = .004) and change in explicit bias. Conclusions and Relevance: Among resident physicians, symptoms of burnout appeared to be associated with greater explicit and implicit racial biases; given the high prevalence of burnout and the negative implications of bias for medical care, symptoms of burnout may be factors in racial disparities in health care.

Correction to: Physician Knowledge of Human Genetic Variation, Beliefs About Race and Genetics, and Use of Race in Clinical Decision-making.

We discovered that two of the items in the knowledge index were incorrectly identified. We reran all the analyses and none of the major findings changed. However, we would like to correct the error since our hope is that others will use the measure.

The Effects of Racism in Medical Education on Students' Decisions to Practice in Underserved or Minority Communities.

PURPOSE: The purpose of this study was to examine the relationship between manifestations of racism in medical school and subsequent changes in graduating medical students' intentions to practice in underserved or minority communities, compared with their attitudes and intentions at matriculation. METHOD: The authors used repeated-measures data from a longitudinal study of 3,756 students at 49 U.S. medical schools that were collected from 2010 to 2014. They conducted generalized linear mixed models to estimate whether manifestations of racism in school curricula/policies, school culture/climate, or student attitudes/behaviors predicted first- to fourth-year changes in students' intentions to practice in underserved communities or primarily with minority populations. Analyses were stratified by students' practice intentions (no/undecided/yes) at matriculation. RESULTS: Students' more negative explicit racial attitudes were associated with decreased intention to practice with underserved or minority populations at graduation. Service learning experiences and a curriculum focused on improving minority health were associated with increased intention to practice in underserved communities. A curriculum focused on minority health/disparities, students' perceived skill at developing relationships with minority patients, the proportion of minority students at the school, and the perception of a tense interracial environment were all associated with increased intention to care for minority patients. CONCLUSIONS: This study provides evidence that racism manifested at multiple levels in medical schools was associated with graduating students' decisions to provide care in high-need communities. Strategies to identify and eliminate structural racism and its manifestations in medical school are needed.

Healthcare Providers' Responses to Narrative Communication About Racial Healthcare Disparities.

We used qualitative methods (semi-structured interviews with healthcare providers) to explore: 1) the role of narratives as a vehicle for raising awareness and engaging providers about the issue of healthcare disparities and 2) the extent to which different ways of framing issues of race within narratives might lead to message acceptance for providers' whose preexisting beliefs about causal attributions might predispose them to resist communication about racial healthcare disparities. Individual interviews were conducted with 53 providers who had completed a prior survey assessing beliefs about disparities. Participants were stratified by the degree to which they believed providers contributed to healthcare inequality: low provider attribution (LPA) versus high provider attribution (HPA). Each participant read and discussed two differently framed narratives about race in healthcare. All participants accepted the "Provider Success" narratives, in which interpersonal barriers involving a patient of color were successfully resolved by the provider narrator, through patient-centered communication. By contrast, "Persistent Racism" narratives, in which problems faced by the patient of color were more explicitly linked to racism and remained unresolved, were very polarizing, eliciting acceptance from HPA participants and resistance from LPA participants. This study provides a foundation for and raises questions about how to develop effective narrative communication strategies to engage providers in efforts to reduce healthcare disparities.

Physician Knowledge of Human Genetic Variation, Beliefs About Race and Genetics, and Use of Race in Clinical Decision-making.

BACKGROUND: Race in the USA has an enduring connection to health and well-being. It is often used as a proxy for ancestry and genetic variation, although self-identified race does not establish genetic risk of disease for an individual patient. How physicians reconcile these seemingly paradoxical facts as they make clinical decisions is unknown. OBJECTIVE: To examine physicians' genetic knowledge and beliefs about race with their use of race in clinical decision-making DESIGN: Cross-sectional survey of a national sample of clinically active general internists RESULTS: Seven hundred eighty-seven physicians completed the survey. Regression models indicate that genetic knowledge was not significantly associated with use of race. However, physicians who agreed with notions of race as a biological phenomenon and those who agreed that race has clinical importance were more likely to report using race in their decision-making. CONCLUSIONS: Genomic and precision medicine holds considerable promise for narrowing the gap in health among racial groups in the USA. For this promise to be realized, our findings suggest that future research and education efforts related to race, genomics, and health must go beyond educating health care providers about common genetic conditions to delving into assumptions about race and genetics.

Communicating with providers about racial healthcare disparities: The role of providers' prior beliefs on their receptivity to different narrative frames.

OBJECTIVE: Evaluate narratives aimed at motivating providers with different pre-existing beliefs to address racial healthcare disparities. METHODS: Survey experiment with 280 providers. Providers were classified as high or low in attributing disparities to providers (HPA versus LPA) and were randomly assigned to a non-narrative control or 1 of 2 narratives: "Provider Success" (provider successfully resolved problem involving Black patient) and "Provider Bias" (Black patient experienced racial bias, which remained unresolved). Participants' reactions to narratives (including identification with narrative) and likelihood of participating in disparities-reduction activities were immediately assessed. Four weeks later, participation in those activities was assessed, including self-reported participation in a disparities-reduction training course (primary outcome). RESULTS: Participation in training was higher among providers randomized to the Provider Success narrative compared to Provider Bias or Control. LPA participants had higher identification with Provider Success than Provider Bias narratives, whereas among HPA participants, differences in identification between the narratives were not significant. CONCLUSIONS: Provider Success narratives led to greater participation in training than Provider Bias narratives, although providers' pre-existing beliefs influenced the narrative they identified with. PRACTICE IMPLICATIONS: Provider Success narratives may be more effective at motivating providers to address disparities than Provider Bias narratives, though more research is needed.

A Prognostic Index to Identify the Risk of Developing Depression Symptoms Among U.S. Medical Students Derived From a National, Four-Year Longitudinal Study.

PURPOSE: To determine baseline individual and school-related factors associated with increased risk of developing depression symptoms by year four (Y4) of medical school, and to develop a prognostic index that stratifies risk of developing depression symptoms (Depression-PI) among medical students. METHOD: The authors analyzed data from 3,743 students (79% of 4,732) attending 49 U.S. medical schools who completed baseline (2010) and Y4 (2014) surveys. Surveys included validated scales measuring depression, stress, coping, and social support. The authors collected demographics and school characteristics and conducted multivariate analysis to identify baseline factors independently associated with Y4 depression symptoms. They used these factors to create a prognostic index for developing depression. They randomly divided the data into discovery (n = 2,455) and replication (n = 1,288) datasets and calculated c statistics (c). RESULTS: The authors identified eight independent prognostic factors for experiencing depression symptoms during training within the discovery dataset: age; race; ethnicity; tuition; and baseline depression symptoms, stress, coping behaviors, and social support. The Depression-PI stratified four risk groups. Compared with the low risk group, those in the intermediate, high, and very high risk groups had an odds ratio of developing depression of, respectively, 1.75, 3.98, and 9.19 (c = 0.71). The replication dataset confirmed the risk groups. CONCLUSIONS: Demographics; tuition; and baseline depression symptoms, stress, coping behaviors, and social support are independently associated with risk of developing depression during training among U.S. medical students. By stratifying students into four risk groups, the Depression-PI may allow for a tiered primary prevention approach.

Association of Clinical Specialty With Symptoms of Burnout and Career Choice Regret Among US Resident Physicians.

Importance: Burnout among physicians is common and has been associated with medical errors and lapses in professionalism. It is unknown whether rates for symptoms of burnout among resident physicians vary by clinical specialty and if individual factors measured during medical school relate to the risk of burnout and career choice regret during residency. Objective: To explore factors associated with symptoms of burnout and career choice regret during residency. Design, Setting, and Participants: Prospective cohort study of 4732 US resident physicians. First-year medical students were enrolled between October 2010 and January 2011 and completed the baseline questionnaire. Participants were invited to respond to 2 questionnaires; one during year 4 of medical school (January-March 2014) and the other during the second year of residency (spring of 2016). The last follow-up was on July 31, 2016. Exposures: Clinical specialty, demographic characteristics, educational debt, US Medical Licensing Examination Step 1 score, and reported levels of anxiety, empathy, and social support during medical school. Main Outcomes and Measures: Prevalence during second year of residency of reported symptoms of burnout measured by 2 single-item measures (adapted from the Maslach Burnout Inventory) and an additional item that evaluated career choice regret (defined as whether, if able to revisit career choice, the resident would choose to become a physician again). Results: Among 4696 resident physicians, 3588 (76.4%) completed the questionnaire during the second year of residency (median age, 29 [interquartile range, 28.0-31.0] years in 2016; 1822 [50.9%] were women). Symptoms of burnout were reported by 1615 of 3574 resident physicians (45.2%; 95% CI, 43.6% to 46.8%). Career choice regret was reported by 502 of 3571 resident physicians (14.1%; 95% CI, 12.9% to 15.2%). In a multivariable analysis, training in urology, neurology, emergency medicine, and general surgery were associated with higher relative risks (RRs) of reported symptoms of burnout (range of RRs, 1.24 to 1.48) relative to training in internal medicine. Characteristics associated with higher risk of reported symptoms of burnout included female sex (RR, 1.17 [95% CI, 1.07 to 1.28]; risk difference [RD], 7.2% [95% CI, 3.1% to 11.3%]) and higher reported levels of anxiety during medical school (RR, 1.08 per 1-point increase [95% CI, 1.06 to 1.11]; RD, 1.8% per 1-point increase [95% CI, 1.6% to 2.0%]). A higher reported level of empathy during medical school was associated with a lower risk of reported symptoms of burnout during residency (RR, 0.99 per 1-point increase [95% CI, 0.99 to 0.99]; RD, -0.5% per 1-point increase [95% CI, -0.6% to -0.3%]). Reported symptoms of burnout (RR, 3.20 [95% CI, 2.58 to 3.82]; RD, 15.0% [95% CI, 12.8% to 17.3%]) and clinical specialty (range of RRs, 1.66 to 2.60) were both significantly associated with career choice regret. Conclusions and Relevance: Among US resident physicians, symptoms of burnout and career choice regret were prevalent, but varied substantially by clinical specialty. Further research is needed to better understand these differences and to address these issues.

Ensnared by Colorblindness: Discourse on Health Care Disparities.

Objective: Race consciousness serves as the foundation for Critical Race Theory (CRT) methodology. Colorblindness minimizes racism as a determinant of outcomes. To achieve the emancipatory intent of CRT and to reduce health care disparities, we must understand: 1) how colorblindness "shows up" when health care professionals aim to promote equity; 2) how their colorblindness informs (and is informed by) clinical practice; and 3) ways to overcome colorblindness through strategies grounded in CRT. Design/Setting/Participants: We conducted 21 semi-structured interviews with key informants and seven focus groups with personnel employed by a large Minnesota health care system. We coded transcripts inductively and deductively for themes using the constant comparative method. We used a race-conscious approach to examine how respondents' accounts align or diverge from colorblindness. Results: Evading race, respondents considered socioeconomic status, cultural differences, and patients' choices to be the main contributors to health disparities. Few criticized the behavior of coworkers or that of the organization or acknowledged structural racism. Respondents strongly believed that all patients were treated equally by providers and staff, in part due to race-neutral care processes and guidelines. Respondents also used several semantic moves common to colorblindness to refute suggestions of racial inequality. Conclusions: Colorblindness upholds the racial status quo and inhibits efforts to promote health equity. Drawing on CRT to guide them, health care leaders will need to develop strategies to counter personnel's tendency to focus on axes of inequality other than race, to decontextualize patients' health behaviors and choices, and to depend heavily on race-neutral care processes to produce equitable outcomes.

Developing a Medical School Curriculum on Racism: Multidisciplinary, Multiracial Conversations Informed by Public Health Critical Race Praxis (PHCRP).

Background: To fight racism and its potential influence on health, health care professionals must recognize, name, understand and talk about racism. These conversations are difficult, particularly when stakes feel high-in the workplace and in interracial groups. We convened a multidisciplinary, multi-racial group of professionals in two phases of this exploratory project to develop and pilot an intervention to promote effective dialogues on racism for first year medical students at the University of Minnesota Medical School. Methods: Informed by a Public Health Critical Race Praxis (PHCRP) methodology in Phase I, initial content was developed by a group of seven women primarily from racial and ethnic minority groups. In a later phase, they joined with five White (primarily male) colleagues to discuss racism and race. Participants met monthly for 12 months from Jan 2016-Dec 2016. All participants were recruited by study PI. An inductive approach was used to analyze meeting notes and post intervention reflections to describe lessons learned from the process of employing a PHCRP methodology to develop the aforementioned curriculum with a multidisciplinary and multi-racial group of professionals dedicated to advancing conversations on racial equity. Results: Participants from Phase I described the early meetings as "powerful," allowing them to "bring their full selves" to a project that convened individuals who are often marginalized in their professional environments. In Phase II, which included White colleagues, the dynamics shifted: "…the voices from Phase I became quieter…"; "I had to put on my armor and fight in those later meetings…". Conclusions: The process of employing PHCRP in the development of an intervention about racism led to new insights on what it means to discuss racism among those marginalized and those with privilege. Conversations in each phase yielded new insights and strategies to advance a conversation about racism in health care.

Correction to: Medical School Factors Associated with Changes in Implicit and Explicit Bias Against Gay and Lesbian People among 3492 Graduating Medical Students.

Due to a tagging error, two authors were incorrectly listed in indexing systems. Brook W. Cunningham should be B.A. Cunningham and Mark W. Yeazel should be M.W. Yeazel for indexing purposes.