Rural-urban differences in pulmonary embolism mortality by race-ethnicity and sex in the United States, 1999-2020

INTRODUCTION

Racial and ethnic differences in pulmonary embolism (PE) mortality within rural and urban regions in the U.S. have not previously been described. PE mortality may vary across regions and urbanization given disparities in social and structural determinants and comorbid disease.

METHODS

Using surveillance data from the Centers for Disease Control and Prevention, age-adjusted mortality rates (AAMR) related to PE were calculated for rural and urban regions in the U.S., in non-Hispanic Black and White women and men, between 1999 and 2020.

RESULTS

Among 137,946 deaths in urban regions and 41,333 deaths in rural regions due to PE during this period, AAMR decreased 1.8% per year in urban regions from 3.1 to 100,000 in 1999 to 2.2 per 100,000 in 2020, and decreased 1% per year in rural regions from 4.3 to 100,000 in 1999 to 3.3 per 100,000 in 2020. Since 2008, AAMR from PE increased in non-Hispanic White males in rural and urban regions, decreased in non-Hispanic Black females in rural regions, and otherwise remained stagnant in all other race-sex groups.

CONCLUSIONS

AAMR from PE was higher in rural compared with urban individuals, with differences by race and sex. Mortality rates remained stagnant over the last decade in non-Hispanic Black adults and non-Hispanic White females and increased in non-Hispanic White males.

Validity Evidence Supporting the Comunicación y Habilidades Interpersonales (CAI) Scale for Medical Spanish Communication and Interpersonal Skills Assessment

PURPOSE

While many schools teach medical Spanish to improve communication with the growing Spanish-speaking population, a standardized assessment methodology is lacking. This study evaluates validity evidence for a newly developed Spanish Communication and Interpersonal Skills (CIS) scale.

METHOD

The authors developed the Comunicación y Habilidades Interpersonales (CAI, pronounced /kī/) scale by culturally and linguistically adapting a 14-item validated English CIS scale. Sources of validity evidence were gathered targeting content, response process, internal structure, relations to other variables, and consequences. The CAI was administered as part of an objective structured clinical examination at 2 medical schools from April to June 2020.

RESULTS

The authors mapped CAI items onto USMLE Step 2 CIS behavioral functions and medical Spanish learner competencies to examine content validity. The mean item difficulty and item discrimination estimates are 2.86 (SD = 0.34) and 0.81 (SD = 0.08), respectively, demonstrating good psychometric properties at the item level. Internal-consistency reliability for a single case was 0.96. Learner variance accounted for 12% of total variance, demonstrating ability to differentiate higher and lower performing learners; the person-case interaction accounted for 44% of total variance, indicating strong case specificity.

CONCLUSIONS

The CAI has higher case specificity than previously reported in English, suggesting that the nuanced contextual elements of individual cases may matter even more when learners are using limited language skills. Implementing the CAI more widely may promote inclusion of patient-centered communication skills as part of curricular content and activities. This study's validity evidence may inform the development of a future medical Spanish certification examination.