Research Article

Elevated Blood Urea Nitrogen-to-Serum Albumin Ratio as a Factor That Negatively Affects the Mortality of Patients with Hospital-Acquired Pneumonia

Table 1

Epidemiology and 30-day mortality of HAP in each department.

DepartmentInpatient, (%)HAP, (%)Death, (%)30-day mortality (%)

SICU465 (0.22)7 (0.60)4 (2.7)57.1
MICU957 (0.45)23 (1.99)11 (7.3)47.8
Gastroenterology6366 (3.03)22 (1.90)9 (6.0)40.9
Rheumatology6479 (3.08)23 (1.97)8 (5.3)34.8
Oncology11706 (5.56)79 (6.82)25 (16.7)31.6
Traditional Chinese medicine3652 (1.74)7 (0.60)2 (1.3)28.6
Respiratory medicine5294 (2.51)45 (3.87)11 (7.3)24.4
Infectious diseases19651 (9.33)99 (8.55)20 (13.3)20.2
Nephrology4308 (2.04)39 (3.37)7 (4.7)17.9
Gastrointestinal surgery8326 (3.96)42 (3.63)6 (4.0)14.3
Cardiovascular9623 (4.57)141 (12.18)18 (12)12.8
Invasive technology8348 (3.97)9 (0.78)1 (0.7)11.1
Spine surgery3580 (1.70)21 (1.81)2 (1.3)9.5
Neurology12405 (5.90)144 (12.44)12 (8.0)8.3
Endocrinology9307 (4.42)26 (10.79)2 (1.3)7.7
Neurosurgery2886 (1.37)57 (4.92)4 (2.7)7
Rehabilitation4171 (1.98)125 (10.79)5 (3.3)4
Hepatological surgery12860 (6.11)69 (5.96)2 (1.3)2.9
Psychiatry11668 (5.55)126 (10.88)1 (0.7)0.8
Joint surgery5124 (2.44)9 (0.78)00
Urology10853 (5.16)17 (1.47)00
Thyroid surgery10766 (5.12)13 (1.12)00
ENT10636 (5.05)8 (0.69)00
Dermatology2979 (1.42)1 (0.09)00
Gynaecology and obstetrics28007 (13.31)6 (0.52)00

HAP: hospital-acquired pneumonia; SICU: surgical intensive care unit; MICU: medical intensive care unit; ENT: ear, nose, and throat.