National Hospital Discharge Survey Data Analysis of Breast Cancer Between African American and White Women

摘要

The present study estimated age-specific hospital admission rates for breast cancer in African American (AA) and White women through analyzing National Hospital Discharge Survey (NHDS) data from 1988 to 1994. Weighted linear regression was used to analyze trends. Specific standard errors for rates analyzed in the regression were produced using the SUDAAN program. The statistical significance of the weighted least squares test for trends is based on the two-sided z-test with a critical value of 1.96 (alpha=0.05). Hospital admission rates of breast cancer cases decreased among white women (p<0.0004). The rates for AA women were cubically associated with the lowest rate in 1990 and an increase in 1993. The mean Length of stay' was linearly decreasing over study period for Whites (p<0.0093) but not for AA women (p<0.43) . Mean number of diagnosis was significantly increasing over time among whites (p<0.005) while that of AA was not linearly associated (p<0.24) . Mean number of procedures was not linearly increasing among whites (p<0.13) nor among AA (p<0.l3) Unspecified essential hypertension' was the most frequent comorbid condition of breast cancer and Injection of infusion of cancer chemotherapeutic substance' was the most frequently used procedure for comorbid of breast cancer.