Table 2.
Logistics regression analysis for the factors associated with the prognosis of pneumonia
| OR | 95% CI | P value | |
|---|---|---|---|
| Rate of sepsis: Yes (45, 16.1%), No (235, 83.9%) | |||
| Age (continuous variable) | 1.21 | 0.85,1.54 | 0.652 |
| Previous pneumonia(binary variable) | 0.92 | 0.85,1.24 | 0.096 |
| Decreased extent of YKL-40 (classified variable) | 2.84 | 2.16,3.65 | 0.008 |
| Infectious type (unordered variable) | 1.23 | 0.97,1.48 | 0.078 |
| Procalcitonin (continuous variable) | 1.12 | 1.03,1.22 | 0.044 |
| Mechanical ventilation rate: Yes (31, 11.1%), No (249, 88.9%) | |||
| Age (continuous variable) | 1.235 | 1.156,1.366 | 0.023 |
| Previous pneumonia (binary variable) | 2.02 | 1.68,2.26 | 0.034 |
| Decreased extent of YKL-40 (classified variable) | 1.69 | 1.26,2.08 | 0.012 |
| Infectious type (unordered variable) | 1.63 | 1.21,2.27 | 0.028 |
| Procalcitonin (continuous variable) | 1.021 | 0.916,1.148 | 0.189 |
| Intensive Care Unit admission rate: Yes (36, 12.9%), No (244, 87.1%) | |||
| Age (continuous variable) | 1.23 | 1.12,1.51 | 0.041 |
| Previous pneumonia (binary variable) | 1.21 | 0.93,1.87 | 0.267 |
| Decreased extent of YKL-40 (classified variable) | 3.21 | 2.68,4.79 | 0.016 |
| Infectious type (unordered variable) | 1.35 | 1.21,1.45 | 0.030 |
| Procalcitonin (continuous variable) | 1.09 | 0.91,1.17 | 0.526 |
Data are presented as hazard ratios, representing the relative risk of adverse therapeutic events and poor prognosis. The independent risk factors of mechanical ventilation including the age, infectious type, infections history in the previous and decreased extent of YKL-40. The age, infectious type, decreased extent of YKL-40 not associated with the increased rate of mechanical ventilation but also considered as the independent risk factors of ICU admission