Does Higher Hospital Cost Imply Higher Quality of Care?
研究住院治疗强度和住院时间是否改善患者结局，发现更高强度能提高生存率和部分功能状态。
This study investigates whether higher input use per stay in the hospital (treatment intensity) and longer length of stay improve outcomes of care. We allow for endogeneity of intensity and length of stay by estimating a quasi-maximum-likelihood discrete factor model, where the distribution of the unmeasured variable is modeled using a discrete distribution. Data on elderly persons come from several waves of the National Long-Term Care Survey merged with Medicare claims data for 1984-1995 and the National Death Index. We find that higher intensity improves patient survival and some dimensions of functional status among those who survive. © 2003 President and Fellows of Harvard College and the Massachusetts Institute of Technology.