Table 4.
Intervention, implementation, and technical fidelity.
| Total | Surgery | Internal medicine | P value | |||
| Intervention fidelity | ||||||
| Written nurse reports, n (%) | 6142 (100) | 3134 (70.8)a | 1153 (67.3)b | .008c,d | ||
| Patients >70% threshold, n (%) | 198 (55.3)e | 150 (60.5)f | 48 (43.6)g | .003c,d | ||
| Overall fidelity (%), mean (SD) | 70.7 (20.4) | 73.6 (18.1) | 64.1 (23.7) | <.001c,h | ||
| Early implementation (months 1-2) | 75.8 (17.2) | 75.6 (17.2)i | 76.3 (17.4)j | .80h | ||
| Midimplementation (months 3-4) | 67.4 (21.4) | 73.8 (18.5)k | 56.5 (21.8)l | <.001c,h | ||
| Late implementation (months 5-6) | 65.9 (22.3) | 70.7 (18.8)m | 48.2 (25.9)n | <.001c,h | ||
| Recruitment rate, n (%) | 358 (98.3)o | 248 (98.4)p | 110 (98.2)q | >.99r | ||
| Retention rate, n (%) | 358 (99.4)s | 248 (99.2)t | 110 (100)u | >.99 | ||
| Implementation fidelity | ||||||
| Nurses who attended e-learning module, n (%) | 147 (93)v | 60 (89.6)w | 87 (95.6)x | .21r | ||
| Monthly evaluations, n (%) | 10 (100) | 5 (100) | 5 (100) | N/Ay | ||
| Exposure, n (%) | 358 (28)z | 248 (33.6)aa | 110 (21.8)ab | <.001c,d | ||
| Technical fidelity (n=340) | ||||||
| Monitoring time (hours), median (IQR) | 96.6 (47.6-163.6) | 96.2 (47.5-164.9) | 97.4 (47.3-157.8) | .60ac | ||
| Total measurements, N | 1,017,467 | 729,622 | 287,845 | N/A | ||
| HRad measurements, N | 508,226 | 364,285 | 143,941 | N/A | ||
| HR measurement artifacts, n (%) | 136,753 (26.9) | 83,527 (22.9) | 53,226 (36.9) | <.001c,d | ||
| ReRae measurements, N | 509,281 | 365,377 | 143,904 | N/A | ||
| ReR measurement artifacts, n (%) | 74,785 (14.7) | 51,758 (14.2) | 23,027 (16.0) | .04c,d | ||
| D-EWSaf, N | 32,730 | 24,267 | 8463 | <.001c,d | ||
| Score of 0, n (%) | 6610 (20.2) | 5500 (22.7) | 1110 (13.1) | |||
| Score of 1-2, n (%) | 24,385 (74.5) | 17,849 (73.6) | 6536 (77.2) | |||
| Score of ≥3, n (%) | 1734 (5.3) | 917 (3.8) | 817 (9.6) | |||
| Sensors replaced, n (%)e | 37 (10.3) | 27 (10.9) | 10 (9.1) | .71d | ||
aN=4428.
bN=1714.
cSignificant with P<.05.
dChi-square test.
eN=358.
fN=248.
gN=110.
hUnpaired t test.
iN=104.
jN=51.
kN=65.
lN=38.
mN=79.
nN=21.
oN=364.
pN=252.
qN=112.
rFisher exact test.
sN=360.
tN=250.
uN=110.
vN=158.
wN=67.
xN=91.
yN/A: not applicable.
zN=1242.
aaN=738.
abN=504.
acMann-Whitney U test.
adHR: heart rate.
aeReR: respiratory rate.
afD-EWS: partial Modified Early Warning Score.