Measure | Before mean (SD) | After mean (SD) | Change (95% CI) | p Value |
---|---|---|---|---|
Avg cardiac monitoring rate | 0.535 (0.046) | 0.251 (0.022) | (0.254 to 0.315) | <0.001 |
Avg monitored transport rate | 0.216 (0.012) | 0.182 (0.010) | (0.024 to 0.043) | <0.001 |
Avg ED boarding rate | 5.5% (2.3%) | 3.5% (2.0%) | (1.3% to 2.7%) | <0.001 |
% false alarms* | 18.8% | 9.6% | <0.001 | |
% unnecessary alarms* | 46.2% | 46.7% | ||
% true alarms* | 35.0% | 43.7% | ||
Avg LOS index/week | 0.99 (0.02) | 0.98 (0.03) | (0.01 to 0.03) | 0.42 |
Avg mortality index/week | 0.68 (0.14) | 0.65 (0.15) | (0.11 to 0.14) | 0.80 |
*False and unnecessary alarm percentages were calculated from observational data collected from randomly sampling three 2 h time periods during pre and post period (126 alarms preimplementation, 229 alarms postimplementation). All other measures reflect population data gathered weekly for 12 weeks before and after the implementation.
Avg, average; ED, emergency department; LOS, length of stay.