Open Access Data Repository and Common Data Model for Pulse Oximeter Performance Data.

The OpenOximetry Repository is a structured database storing clinical and lab pulse oximetry data, serving as a centralized repository and data model for pulse oximetry initiatives. It supports measurements of arterial oxygen saturation (SaO2) by arterial blood gas co-oximetry and pulse oximetry (SpO2), alongside processed and unprocessed photoplethysmography (PPG) data and other metadata. This includes skin color measurements, finger diameter, vital signs (e.g., arterial blood pressure, end-tidal carbon dioxide), and arterial blood gas parameters (e.g., acid-base balance, hemoglobin concentration). Data contributions are encouraged. All data, from desaturation studies to clinical trials, are collected prospectively to ensure accuracy. A common data model and standardized protocols for consistent archival and interpretation ensure consistent data archival and interpretation. The dataset aims to facilitate research on pulse oximeter performance across diverse human characteristics, addressing performance issues and promoting accurate pulse oximeters. The initial release includes controlled lab desaturation studies (CLDS), with ongoing updates planned as further data from clinical trials and CLDS become available.

Race-shifting in the United States: Latinxs, Skin Tone, and Ethnoracial Alignments.

In the study, we engage the question of racial "fluidity" by examining patterns of ethnoracial identification in adolescence and, importantly, shifts in ethnoracial identification between adolescence and adulthood using two waves of data from a nationally representative, longitudinal study of adolescents who were in Grades 7 to 12 during the 1994 to 1995 school year. Our theoretical framework draws from social identity theory and brings together bodies of research in race and immigration to make a case for the importance of phenotype, ancestry, and sociocultural elements as potential mechanisms for patterns among Latinx youth, as shifts in ethnoracial identification are predominantly a Latinx phenomenon. The bulk of the findings suggest that both phenotype and immigration are important factors for ethnoracial self-identification among Latinx youth, as well as shifts in their ethnoracial identification in young adulthood. Given what we know about ethnoracial categorization and ascription, findings suggest that, overall, shifts in ethnoracial identification among Latinx youth are primarily about bringing their self-identification into alignment with how they think they tend to be (and most likely are) perceived by others, which we suggest represents a Sedimentation of the Color Line. We close by discussing the myriad implications of our findings for the U.S. racial order and the ongoing debate about how to "measure" the Latinx population.

Skin Tone and Perceived Discrimination: Health and Aging Beyond the Binary in NSHAP 2015.

OBJECTIVES: This paper introduces new measures of skin tone (self-reported) and perceived discrimination that are included in the third round of the National Social Life, Health, and Aging Project (NSHAP). We explain the rationale for these new measures, emphasizing, in particular, how they help researchers to conceptualize and measure the significance of race/ethnicity for health and aging beyond binary ethnoracial categories. METHOD: We describe new measures of skin tone and perceived discrimination for use in NSHAP 2015. We provide descriptive statistics on the distribution of skin tone (self-reported) by race/ethnicity. As a proof of concept, we use logistic and ordinary least squares regression analyses to examine the relationship between skin tone, perceived discrimination, and perceived stress among ethnoracial minorities. RESULTS: We find that there is significant variation in skin tone among non-White respondents in NSHAP 2015 (e.g., non-Hispanic Black and Latinx). We also find that skin tone (self-reported) is a significant predictor of the frequency of perceived discrimination and perceived stress among African American, but not Latinx respondents in NSHAP. DISCUSSION: The inclusion of new skin tone and discrimination measures in NSHAP 2015 provides a unique and novel opportunity for researchers to more deeply understand how race/ethnicity is connected to health and aging among ethnoracial minorities. Furthermore, it will enable analyses of how stress and perceived discrimination also affect patterns of health and aging among Whites against the backdrop of steadily increasing socioeconomic inequalities and shifting ethnoracial demographics in the United States.

Colorism and Physical Health: Evidence from a National Survey.

This study uses nationally representative data to extend a steadily growing body of research on the health consequences of skin color by comparatively examining the consequences of perceived ingroup and outgroup skin color discrimination (perceived colorism) for physical health among African Americans. Using a comprehensive set of measures of physical health, I find that perceived ingroup colorism is significantly associated with worse physical health outcomes among African Americans. Notably, the magnitude of ingroup colorism's associations with most of these outcomes rivals or even exceeds that of major lifetime discrimination, everyday discrimination, and perceived outgroup colorism. These findings compellingly suggest the inclusion of perceived colorism measures in future survey data collection efforts.

Linked fate and mental health among African Americans.

Linked fate, the feeling that what happens to one's group may indelibly shape one's own life, is variously conceptualized as an aspect of ethnoracial identity, expression of political solidarity, and/or sense of ethnoracial consciousness. In this study, I contend that, within the context of stigmatization, linked fate may also be compellingly conceptualized as an expression of collective threat and vulnerability with potential relevance for the mental health of African Americans, in particular. Nevertheless, existing research on race and mental health has remained silent on this issue, as linked fate has received little scholarly attention from researchers interested in mental health. Building on prior research on ethnoracial identity, stigmatization, and mental health among African Americans, I introduce linked fate as a neglected, yet important phenomenon among stigmatized minorities, which is deeply associated with ethnoracial identification and should also be considered when examining the consequences of ethnoracial identification on the mental health of African Americans. Using nationally-representative data and logistic regression, I find that linked fate not only fails to be health-protective but is significantly associated with poorer mental health among African Americans in the form of increased suffering from major depression, bipolar I, and anxiety disorders.

The Cost of Color: Skin Color, Discrimination, and Health among African-Americans.

In this study, the author uses a nationally representative survey to examine the relationship(s) between skin tone, discrimination, and health among African-Americans. He finds that skin tone is a significant predictor of multiple forms of perceived discrimination (including perceived skin color discrimination from whites and blacks) and, in turn, these forms of perceived discrimination are significant predictors of key health outcomes, such as depression and self-rated mental and physical health. Intraracial health differences related to skin tone (and discrimination) often rival or even exceed disparities between blacks and whites as a whole. The author also finds that self-reported skin tone, conceptualized as a form of embodied social status, is a stronger predictor of perceived discrimination than interviewer-rated skin tone. He discusses the implications of these findings for the study of ethnoracial health disparities and highlights the utility of cognitive and multidimensional approaches to ethnoracial and social inequality.