Clinical Study

Hospital-Acquired Infection Underlies Poor Functional Outcome in Patients with Prolonged Length of Stay

Table 2

Outcome measures according to whether or not LOS was prolonged.

LOS not prolonged LOS prolonged value

In-hospital infection, (%)20 (11.9%)49 (46.2%)<0.0001
 Pneumonia6 (3.6%)19 (18.1%)<0.0001
 UTI11 (6.7%)34 (32.1%)<0.0001
 Other5 (3.1%)10 (9.4%)0.0245
Neurologic deterioration, (%)38 (22.6%)51 (48.1%)<0.0001
Discharge NIHSS, median; IQR2; 0, 76; 2, 16<0.0001
Discharge mRS, median; IQR2; 1, 44; 2, 5<0.0001
Poor functional outcome*, (%)79 (48.2%)78 (73.6%)<0.0001
Unfavorable discharge disposition**, (%)12 (7.8%)21 (21.2%)0.0021
Discharge disposition<0.0001
 Discharge to home101 (66.0%)30 (30.3%)
 Discharge to inpatient rehabilitation40 (26.1%)48 (48.5%)
 Discharge to skilled nursing facility4 (2.6%)11 (11.1%)
 Discharge to long-term acute care facility1 (0.6%)5 (5.1%)
 Discharge to hospice5 (3.3%)5 (5.1%)
Length of stay, median days (IQR)4; 2, 69; 4, 15<0.0001
In-hospital mortality, (%)14 (8.3%)7 (6.6%)0.6002

LOS: length of stay; NIHSS: National Institutes of Health Stroke Scale score; IQR: interquartile range; mRS: modified Rankin Scale score.
Poor functional outcome is defined as discharge mRS >2.
Unfavorable discharge disposition is defined as discharge to a facility other than home or inpatient rehabilitation.