This paper explores disparities in the effect of pollution on confirmed cases Covid-19 based counties’ socioeconomic and demographic characteristics. Using data all US counties a daily basis over year 2020 applying rich panel fixed model, we document that: 1) there are discernible social spread Covid-19. Blacks, low educated, poorer people at higher risks being infected by new disease. 2) The c...

Head and neck cancers diagnosed in California are most common among non-Hispanic whites and non-Hispanic blacks (Figure 3). However, over the past 21 years, both the mortality and incidence rates among all racial/ethnic groups have significantly declined. The largest decrease in incidence has been among non-Hispanic blacks (37.8%), followed by Asian/Pacific Islanders (27.1%). The most notable r...

Neural control of blood pressure (BP) has been reported to differ between young blacks and whites. We hypothesized that elderly blacks have enhanced sympathetic neural responses during orthostasis compared with elderly whites. Muscle sympathetic nerve activity, arm-cuff BP, and heart rate were recorded continuously, and cardiac output, stroke volume, and total peripheral resistance were measure...

BACKGROUND Epidemiologic studies have shown increased risks of lung cancer among adults with low blood levels of selenium, although evidence is inconsistent. In the United States, the incidence of lung cancer is higher and mean serum selenium levels lower among Blacks than Whites, but prior studies have not assessed the selenium-lung cancer association among Blacks. METHODS From the prospecti...

OBJECTIVES The purpose of this study is twofold: (a) to see whether the association between age and perceived control is the same for Blacks as well as Whites; and (b) to see if education, health, income, social support, cognitive function, and religion account for the relationship between age and control in the same way for Blacks and Whites. METHODS Data for this study come from the first w...

Blacks have a greater tendency to retain Na than whites. The present study sought evidence for ethnic differences in parameters reflective of Na uptake by the Na,K,2Cl cotransporter in the thick ascending limb, namely, the urine concentration and urinary excretion of certain cations before and after furosemide administration (40 mg IV). Subjects were healthy (ages 18 to 36 years). During the pr...