ESTIMATION OF PARASITIC INFECTION DYNAMICS WHEN DETECTABILITY IS IMPERFECT

被引:37
作者
NAGELKERKE, NJD
CHUNGE, RN
KINOTI, SN
机构
[1] Medical Research Centre, Kenya Medical Research Institute, Nairobi
[2] Statistical Institute, Voorburg, 2270 AZ
关键词
D O I
10.1002/sim.4780091010
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The simultaneous estimation of infection rate, cure rate and detectability of parasitic infections is considered. A new method for this estimation based on a simple statistical model assuming constant transition rates between parasite states is proposed. Repeated observations on the infection status of the same individuals is required for this method. A maximum likelihood approach is used for parameter estimation and the calculation of standard errors of the estimates. The method is illustrated by a longitudinal study of the presence of Giardia lamblia infection in Kenyan children. Copyright © 1990 John Wiley & Sons, Ltd.
引用
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页码:1211 / 1219
页数:9
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