Table 1.
Baseline characteristics of serum IgG4 levels in cancer and non-cancer patients.
| Variable | Non-Cancer (N = 3481) |
Cancer 2 (N = 339) |
|
||
|---|---|---|---|---|---|
| N | % | N | % | p-Value | |
| Sex | <0.0001 | ||||
| Female | 1340 | 38.50 | 196 | 57.82 | |
| Male | 2141 | 61.51 | 143 | 42.18 | |
| Age (years) | <0.0001 | ||||
| 0–39 | 776 | 22.29 | 16 | 4.72 | |
| 40–59 | 1390 | 39.93 | 110 | 32.45 | |
| 60–79 | 1146 | 32.92 | 173 | 51.03 | |
| >79 | 169 | 4.86 | 40 | 11.80 | |
| Mean, (SD) 1 | 53.3 | (16.69) | 63.81 | (14.19) | <0.0001 |
| IgG4 value (mg/dL) | 0.048 | ||||
| ≤140 | 2793 | 80.24 | 254 | 74.93 | |
| 141–280 | 449 | 12.90 | 52 | 15.34 | |
| >280 | 239 | 6.87 | 33 | 9.73 | |
| Mean, (SD) 1 | 118.5 | (223) | 173.95 | (483.31) | 0.038 |
1 Student’s t-test; 2 cancer: cholangiocarcinoma, pancreatic cancer, ampullary cancer. Abbreviations: N, numbers of patients; SD, standard deviation.