Table 2. Comparison of each index between patients with AECOPD with and without infection.
| Parameters | With combined infection (n=136) | Without combined infection (n=116) | P value |
|---|---|---|---|
| Age (years) | 73.31±9.53 | 70.23±8.36 | 0.006 |
| BMI (kg/m2) | 20.24±3.14 | 21.03±4.02 | 0.090 |
| AGR | 1.37±0.39 | 1.52±0.32 | 0.001 |
| LogCRP | 1.14±0.50 | 0.97±0.45 | 0.012 |
| IgG (g/L) | 11.07±2.86 | 11.02±2.71 | 0.936 |
| PA (mg/L) | 170.92±9.32 | 197.58±6.07 | 0.002 |
Data are presented as mean ± standard deviation. P values of <0.05 indicate a statistically significant difference. The P values were calculated by the independent-samples t-test. AECOPD, acute exacerbation of chronic obstructive pulmonary disease; BMI, body mass index; AGR, albumin/globulin ratio; LogCRP, logarithm of the serum C-reactive protein; IgG, immunoglobulin G; PA, prealbumin.