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Bed-exit alarm effectiveness
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DOI：10.1016/j.archger.2008.04.007.png)
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摘要
En 中文
This study describes the accuracy of two types of bed-exit alarms to detect bed-exiting body movements: pressure-sensitive and a pressure-sensitive combined with infrared (IR)beam detectors (dual sensor system). We also evaluated the occurrence of nuisance alarms, or alarms that are activated when a participant does not attempt to get out of bed. Fourteen nursing home residents were directly observed for a total of 256 nights or 1636.5 h: an average of 18.3 +/- 22.3 (+/-S.D.) nights/participant for an average of 6.4 +/- 1.2 h/night. After adjusting for body movements via repeated measures, Poisson regression modeling, the least squares adjusted means (LSM) show a marginally significant difference between the type of alarm groups on the number of true positives (NTP) (mean/S.E.M. = 0.086/1.617) for pressure-sensitive versus dual sensor alarm (0.593/1.238; p = 0.0599) indicating that the dual sensor alarm may have a higher NTP. While the dual sensor bed-exit alarm was more accurate than the pressure-sensitive alarm in identifying bed-exiting body movements and reducing the incidence of false alarms, false alarms were not eliminated altogether. Alarms are not a substitute for staff: adequate staff availability is still necessary when residents need or wish to exit bed. (C) 2008 Elsevier Ireland Ltd. All rights reserved.
Keyword:
Nursing homes
Bed-exit alarm
Bed and mattresses
Falls of elderly
Physical restraint
Side rail
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