The average length of stay (LOS) is considered one of the most significant indicators of hospital management. The steep decline in the average LOS among Japanese hospitals since the 1980s is considered to be due to cost-containment policies directed at reducing LOS. Japan's hospital sector is characterised by a diversity of ownership types. We took advantage of this context to examine different hospital behaviours associated with ownership types. Analysing government data published from 1971 to 2008 for the effect of a series of cost-containment policies aimed at reducing LOS revealed distinctly different paths behind the declines in LOS between privately owned and publicly owned hospitals. In the earlier years, private hospitals focused on providing long-term care to the elderly, while in the later years, they made a choice between providing long-term care and providing acute care with reduced LOS and bonus payments. By contrast, the majority of public hospitals opted to provide acute care with reduced LOS in line with public targets.
Keywords: Cost containment; Hospital behaviour; Length of stay; Private hospital; Public hospital.
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