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Table 2
Characteristics of the patients at the time of VAP suspicion.
| Characters | Case(n=24) | Control(n=25) | t/χ2 | P value |
|---|---|---|---|---|
| Age (y) | 55.4±14.5 | 52.6±16.7 | 0.63 | 0.53 |
| Gender [n.(%)] | ||||
| Male | 15(62.5) | 14(56.0) | ||
| Female | 9(37.5) | 11(44.0) | ||
| Antibiotics[n.(%)] | ||||
| Positive | 14(58.3) | 17(68.0) | ||
| Negative | 10(41.7) | 8(32.0) | ||
| Ventilation time (day) | 8.6±6.2 | 7.8±6.7 | 0.43 | 0.67 |
| Temperature (℃) | 38.6±0.7 | 38.4±0.8 | 0.93 | 0.36 |
| PaO2/FiO2 (mmHg) | 186.2±86.4 | 214.5±79.6 | 1.19 | 0.24 |
| APACHEⅡ | 22.4±6.2 | 16.8±7.1 | 2.94 | 0.005 |
| Leukocytes (×10-9/L) | 12.3±4.3 | 11.8±5.1 | 0.37 | 0.71 |
| Heart rate (beat/min) | 112.3±12.5 | 106.8±15.6 | 1.36 | 0.18 |
| Blood pressure (mmHg) | ||||
| Systolic pressure | 138.5±22.4 | 124.5±27.4 | 1.95 | 0.06 |
| Diastolic pressure | 76.1±14.5 | 78.1±18.4 | 0.42 | 0.68 |
| Basic disease [n.(%)] | 2.21 | 0.97 | ||
| Type Ⅱ respiratory failure | 2(8.3) | 2(8.0) | ||
| Type Ⅰ respiratory failure | 6(25.0) | 7(28.0) | ||
| Heart failure | 5(20.8) | 6(24.0) | ||
| Cardiopulmonary resuscitation | 2(8.3) | 2(8.0) | ||
| Post operation | 2(8.3) | 3(12.0) | ||
| Central respiratory failure | 2(8.3) | 1(4.0) | ||
| Shock | 2(8.3) | 1(4.0) | ||
| Stroke | 1(4.2) | 0(0.0) | ||
| Chest trauma | 2(8.3) | 3(12.0) | ||
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