Pattern of Underreporting Falls in a General Psychiatric Hospital in Japan


  • Conflict of Interest Statement

    The authors report no actual or potential conflicts of interest. No external or intramural funding was received.

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To examine the pattern of underreporting of fall incidents in a general psychiatric hospital in Japan.

Design and Methods

All fall incidents were analyzed and stratified by ward.


A discrepancy in fall rates was found in acute psychiatric and dementia wards. The following indicators were suggestive of underreporting: “zero fall/1,000 patient-days,” “proportion of falls without injury,” and “proportion of falls identified as occurring in the bedroom as a fall location during certain time periods.”

Practice Implications

Ward-specific fall rates, with further stratifications by time and location of the fall, were useful for identifying a pattern of underreporting.