The structure of demand for health care: latent class versus two-part models
The structure of demand for health care: latent class versus two-part models
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DOI：
10.1016/s0167-6296(02)00008-5
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发表时间：
2002-07-01
影响因子：
3.5
通讯作者：
Trivedi, PK
中科院分区：
文献类型：
--
作者：
Deb, P;Trivedi, PK
我们将区分医疗保健用户和非用户的两部分模型（TPM）与区分不频繁用户和频繁用户的潜在类别模型（LCM）进行了对比。在使用RAND健康保险实验（RHIE）的利用计数数据的模型比较中，我们发现了支持LCM的有力证据。我们表明，在不频繁和频繁用户潜在类别中的个体可能分别被描述为健康和疾病。尽管价格弹性、条件均值和事件概率的样本平均值在统计上没有差异，但当对具有特定特征的假设个体进行计算时，这些政策相关措施的估计值存在实质性差异。(C) 2002 Elsevier Science B.V.版权所有
We contrast the two-part model (TPM) that distinguishes between users and non-users of health care, with a latent class model (LCM) that distinguishes between infrequent and frequent users. In model comparisons using data on counts of utilization from the RAND Health Insurance Experiment (RHIE), we find strong evidence in favor of the LCM. We show that individuals in the infrequent and frequent user latent classes may be described as being healthy and ill, respectively. Although sample averages of price elasticities, conditional means and event probabilities are not statistically different, the estimates of these policy-relevant measures are substantively different when calculated for hypothetical individuals with specific characteristics. (C) 2002 Elsevier Science B.V. All rights reserved.