Immunoglobulin levels on the first day after CAP diagnosis
| Immunoglobulin | HCC (N= 54) | Ward (N= 173) | ICU (N=191) | No ICU (N= 227) | P (three groups) | P (ICU vs No ICU) |
| IgG total mg/dL (DS) | 1102.4 | 1021.2 | 1051.1 | 1040.6 (338.7) | 0.035 | 0.081 |
| IgG1 mg/dL (DS) | 674.9 | 656.6 | 640.8 | 661.0 (255.3) | 0.009 | 0.005 |
| IgG2 mg/dL (DS) | 375.5 | 345.9 | 291.5 | 353.0 (186.0) | <0.001 | <0.001 |
| IgG3 mg/dL (DS) | 67.9 | 67.3 | 52.3 | 67.5 (34.9) | <0.001 | <0.001 |
| IgG4 mg/dL (DS) | 71.06 | 61.6 | 45.1 | 63.9 (64.9) | 0.001 | 0.001 |
| IgA mg/dL (DS) | 296.8 | 273.0 | 238.8 | 278.4(223.9) | 0.018 | 0.008 |
| IgM mg/dL (DS) | 139.7 | 106.8 | 98.5 | 114.4 (143.8) | 0.032 | 0.705 |