Sentinel Modular Program for Propensity Score-Matched Cohort Analyses: Application to Glyburide, Glipizide, and Serious Hypoglycemia.

Sentinel is a program sponsored by the US Food and Drug Administration to monitor the safety of medical products. We conducted a cohort assessment to evaluate the ability of the Sentinel Propensity Score Matching Tool to reproduce in an expedited fashion the known association between glyburide (vs. glipizide) and serious hypoglycemia. Thirteen data partners who contribute to the Sentinel Distributed Database participated in this analysis. A pretested and customizable analytic program was run at each individual site. De-identified summary results from each data partner were returned and aggregated at the Sentinel Operations Center. We identified a total of 198,550 and 379,507 new users of glyburide and glipizide, respectively. The incidence of emergency department visits and hospital admissions for serious hypoglycemia was 19 per 1000 person-years (95% confidence interval = 17.9, 19.7) for glyburide users and 22 (21.6, 22.7) for glipizide users. In cohorts matched by propensity score based on predefined variables, the hazard ratio (HR) for glyburide was 1.36 (1.24, 1.49) versus glipizide. In cohorts matched on a high-dimensional propensity score based on empirically selected variables, for which the program ran to completion in five data partners, the HR was 1.49 (1.31, 1.70). In cohorts matched on propensity scores based on both predefined and empirically selected variables via the high-dimensional propensity score algorithm (the same five data partners), the HR was 1.51 (1.32, 1.71). These findings are consistent with the literature, and demonstrate the ability of the Sentinel Propensity Score Matching Tool to reproduce this known association in an expedited fashion.See video abstract at, http://links.lww.com/EDE/B275.

Effects of race and language on patient-centered cancer nursing care and patient outcomes.

Nursing prides itself on the ability to advocate for patients. However, questions are raised in the National Health Care Disparities Reports from the Agency for Healthcare Research and Quality about how well nurses communicate with African Americans, Hispanics, and people who speak languages other than English. Our secondary analysis of patient data collected at an urban safety-net hospital oncology unit examined the relationships among race, language, patient-centered nursing care, and patient outcomes. Using path modeling techniques, findings indicate that patient-centered care and associated outcomes for African American/Black and Others differ from those for Whites. For the African American/Black and Others group, individualization played a more significant role in achieving a sense of well-being, optimism, and authentic self-representation. Patients who spoke a language other than English at home had different perceptions of their nurses' responsiveness; nurses' responsiveness in turn affected patients' trust in nurses. Future testing is recommended for relationships between patient-centered nursing care and patient outcomes in underserved populations.