International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2019
Incidence of and risk factors for cryptococcosis in kidney transplant recipients in Taiwan-A nationwide population-based study.
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Chen Yung-Tai, Lee Wen-Sen, Tsai Che-An, Fan Wen-Chien, Wu Ping-Feng, Wang Fu-Der
Аннотация
OBJECTIVES: The aim of this study was to determine the long-term incidence of cryptococcosis in kidney transplant recipients (KTRs) and to analyze its risk factors.
METHODS: This retrospective population-based cohort study analyzed data obtained from Taiwan's National Health Insurance Research Database for KTRs during 2000-2012 and matched cohorts. Both populations were followed until death, development of cryptococcosis, or December 2013.
RESULTS: A total of 4,933 KTRs and 49,930 matched patients were included. The cryptococcosis incidence rates for the KTR cohort and matched cohort were 10.59 and 0.4 per 10,000 person-years, respectively. The hazard ratio for cryptococcosis among KTRs was 26.65 (p<0.001); and 43.77 (p<0.001) for cryptococcosis affecting the central nervous system (CNS). The Kaplan-Meier method confirmed an elevated cumulative incidence of cryptococcosis among KTRs (1.00% vs. 0.04%). Predictors for cryptococcosis were advanced age (OR 1.39, 95% CI 1.02-1.89, P=0.038) and cancer (OR 2.63, 95% CI 1.22-5.67, P=0.013), but not the use of any particular class of immunosuppressants.
CONCLUSIONS: KTRs are at dramatically higher risk of developing cryptococcosis, especially with CNS involvement, relative to a non-KTR matched cohort. Older KTRs and those with cancer are at even higher risk of developing cryptococcosis.
METHODS: This retrospective population-based cohort study analyzed data obtained from Taiwan's National Health Insurance Research Database for KTRs during 2000-2012 and matched cohorts. Both populations were followed until death, development of cryptococcosis, or December 2013.
RESULTS: A total of 4,933 KTRs and 49,930 matched patients were included. The cryptococcosis incidence rates for the KTR cohort and matched cohort were 10.59 and 0.4 per 10,000 person-years, respectively. The hazard ratio for cryptococcosis among KTRs was 26.65 (p<0.001); and 43.77 (p<0.001) for cryptococcosis affecting the central nervous system (CNS). The Kaplan-Meier method confirmed an elevated cumulative incidence of cryptococcosis among KTRs (1.00% vs. 0.04%). Predictors for cryptococcosis were advanced age (OR 1.39, 95% CI 1.02-1.89, P=0.038) and cancer (OR 2.63, 95% CI 1.22-5.67, P=0.013), but not the use of any particular class of immunosuppressants.
CONCLUSIONS: KTRs are at dramatically higher risk of developing cryptococcosis, especially with CNS involvement, relative to a non-KTR matched cohort. Older KTRs and those with cancer are at even higher risk of developing cryptococcosis.