Linear regression analysis of censored medical costs
چهارشنبه , 20 شهریور 1392 ساعت 13:23 دسته بندی :دانلود مقاله :
Linear regression analysis of censored medical costs 2000
نویسندگان :
D. Y. LIN
چکیده :
This paper deals with the problem of linear regression for medical cost data when some study subjects
are not followed for the full duration of interest so that their total costs are unknown. Standard survival
analysis techniques are ill-suited to this type of censoring. The familiar normal equations for the leastsquares
estimation are modified in several ways to properly account for the incompleteness of the data.
The resulting estimators are shown to be consistent and asymptotically normal with easily estimated
variance–covariance matrices. The proposed methodology can be used when the cost database contains
only the total costs for those with complete follow-up. More efficient estimators are available when
the cost data are recorded in multiple time intervals. A study on the medical cost for ovarian cancer is
presented.
?> Censoring Cost analysis Economic evaluation Health economics Incomplete data Medical care Survival analysisمطالب مرتبط :