Table 1.
Comparison of basic patient information
| Basic information | Colonization group (n = 18) | Infection group (n = 25) | Control group (n = 20) | Value | P value |
|---|---|---|---|---|---|
| Sex, male/female | 12/6 | 15/10 | 12/8 | χ2 = 0.292 | 0.896 |
| Age, y | 74.0 (66.5–79.5) | 73.0 (66.0–80.5) | 66.5 (60.5–73.8) | H = 3.428 | 0.180 |
| CCI | 5.55 (5.0–6.75) | 6.0 (4.0–7.0) | 5.0 (4.3–7.0) | H = 0.260 | 0.878 |
| Days in ICU before Ab culture positive | 8 (4.25–14.75) | 10 (5.00–17.00) | — | z = −0.851 | 0.395 |
| Days of continuous Ab culture positive | 3.5 (2.0–5.0) | 10 (8.0–12.0) | — | z = −5.46 | 0.001 |
| Stay in ICU or not, yes/no | 11/7 | 22/3 | 14/6 | H = 4.253 | 0.119 |
| Use of antibiotics before admission, with/without | 5/13 | 8/17 | 7/13 | H = 0.226 | 0.893 |
| Whether tracheotomy/intubation was performed, with/without | 8/10 | 17/8 | 5/15 | H = 8.206 | 0.017 |
| Semiquantitative culture results of Ab, small/medium/large amount | 3/6/9 | 3/11/11 | — | z = −0.162 | 0.872 |