Table 2.
Patient characteristics | VAP(N=156) | NVAP(N=745) | χ2/Z | p |
---|---|---|---|---|
Gender | 1.591 | 0.207 | ||
Male | 136(18.0) | 619(82.0) | ||
Female | 20(13.7) | 126(86.3) | ||
Disorder of consciousness | 3.806 | 0.051 | ||
Yes | 58(21.0) | 218(79.0) | ||
No | 98(15.7) | 527(84.3) | ||
Smoking | 0.090 | 0.764 | ||
Yes | 64(17.8) | 296(82.2) | ||
No | 92(17.0) | 449(83.0) | ||
Alcohol consumption | 1.028 | 0.311 | ||
Yes | 45(15.5) | 246(84.5) | ||
No | 111(18.2) | 499(81.8) | ||
Nutritional status | 1.301 | 0.522 | ||
Poor | 26(17.0) | 127(83.0) | ||
Moderate | 86(18.6) | 376(81.4) | ||
Good | 44(15.4) | 242(84.6) | ||
Surgery | 5.018 | 0.025 | ||
Yes | 73(20.9) | 277(79.1) | ||
No | 83(15.1) | 468(84.9) | ||
ICU admission | 9.594 | 0.002 | ||
Yes | 101(21.0) | 381(79.0) | ||
No | 55(13.1) | 364(86.9) | ||
Underlying diseases | ||||
Hypertension | 83(19.1) | 352(80.9) | 1.833 | 0.176 |
Diabetes | 27(14.4) | 161(85.6) | 1.446 | 0.229 |
COPD | 45(22.6) | 154(77.4) | 5.009 | 0.025 |
Respiratory failure | 32(13.3) | 209(86.7) | 3.744 | 0.053 |
Heart dysfunction | 44(14.9) | 252(85.1) | 1.847 | 0.174 |
Brain infarction | 47(19.9) | 189(80.1) | 1.511 | 0.219 |
Malignancy | 41(16.7) | 204(83.3) | 0.014 | 0.907 |
Renal insufficiency | 29(15.7) | 156(84.3) | 0.305 | 0.581 |
Origin of patients | ||||
Internal medicine | 59(12.9) | 397(87.1) | 13.519 | 0.009 |
Surgery | 10(18.9) | 43(81.1) | ||
Emergency department | 1(11.1) | 8(88.9) | ||
ICU | 85(22.5) | 293(77.5) | ||
Others | 1(20.0) | 4(80.0) | ||
Hospitalization length of stay | 120(9,2,535) | 70(4,1,607) | −4.677 | <0.01 |
ICU length of stay | 25(0,1,263) | 4(0,1,548) | −4.938 | <0.01 |
Duration of catheters(days) | ||||
Central venous catheter | ||||
0–90 | 90(15.3) | 498(84.7) | 4.767 | 0.029 |
>90 | 66(21.1) | 247(78.9) | ||
Indwelling urinary catheter | ||||
0–90 | 92(13.6) | 582(86.4) | 25.090 | <0.001 |
>90 | 64(28.2) | 163(71.8) | ||
Number of catheters | ||||
Central venous catheter | ||||
0–2 | 118(15.2) | 660(84.8) | 18.350 | <0.001 |
>2 | 38(30.9) | 85(69.1) | ||
Indwelling urinary catheter | ||||
0–2 | 112(14.7) | 651(85.3) | 0.839 | 0.360 |
>2 | 44(19.3) | 184(80.7) |
Note: Data are shown as number (percentage) or median (min and max).
Abbreviations: ICU, intensive care unit; MV, mechanical ventilation; NVAP, non-ventilator-associated pneumonia; VAP, ventilator-associated pneumonia.