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C. Ferreira, D.M. Salib, K. Rasheed, R. Casey, D. Pan, R.S. Baker; Epidemiology of Patients with Endophthalmitis Admitted to California Hospitals between 1990 and 2000 . Invest. Ophthalmol. Vis. Sci. 2003;44(13):775.
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Purpose: To evaluate the incidence and epidemiologic trends of endophthalmitis patients admitted to California hospitals over an 11 year period, such as differences in incidence among different races and genders. Methods: Age-adjusted and age-specific rates of endophthalmitis hospital admissions were determined by analyzing the California Hospital Discharge Database (CHDD). Incidence of this disease in specific subpopulations, such as varying races, gender, and age groups was also studied. CHDD is under the administration of the California Health Facilites Commision, and maintains records of all hospital patient discharges from acute care hospitals in the State. Endophthalmitis was defined by ICD-9-CM code 360.00-360.19. Results: The annual 1990 age-adjusted rates of endophthalmitis admission in the state of California were 3.0 per 100,000. The rates for males was 3.5, and for females, 2.6. The rate was 2.9 for Whites, 4.4 for Blacks, and 3.6 for Hispanics. Age specific rates were as follows: 19.2 for age 0-1, 0.7 for ages 1-14, 0.9 for ages 15-44, 2.6 for ages 45-64, 9.6 for ages 65 to 74, and 24.6 for ages 75 and higher. In 2000, the rates were as follows: total 1.5 per 100,000 population; 1.7 for males, 1.3 for females, 1.4 for Whites, 2.5 for Blacks, and 1.8 for Hispanics. Age-specific data were as follows: 14.6 for age 0-1, 0.3 for ages 1-14, 0.4 for ages 15-44, 1.5 for ages 45-64, 4.3 for ages 65 to 74, and 10.5 for ages 75 and higher. Conclusions: A comparision of incidence of endophthalmitis in California between 1990 and 2000 shows an approximate reduction of 50% when the total population is considered. This trend is similar in all subpopulations studied, however it appears as though the Black population saw less decline in incidence of this disease compared to the White population. Age-specific data show that the populations which saw the most admissions were the very young (less than one year of age) and the elderly (over 75 years of age). Trends between 1990 and 2000 were similar to the overall incidence in California.
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