The interesting thing about objective research is that you never know where the investigation will lead. In the case of this study of humidity control in long term care environments it led to the cancellation of the study.
This project, sponsored by the Facilities Guidelines Institute (FGI), was intended to address the perceived need for proper humidity control in facilities for the elderly. In the process of preparing to release the request for proposal for the study, someone suggested that an individual at NIH had already completed a comprehensive literature search. We contacted this individual to obtain his findings. He was unable to find any literature that would demonstrate a relationship between humidity control and healing or even patient well-being. Although many felt intuitively that there is a role that humidity plays in patient care for the elderly, FGI chose to withdraw the funding based on lack of sufficient evidence to proceed.