| β | Standard error | t | P value |
---|---|---|---|---|
Regression model for volume of SMG | ||||
 Log2 serum IgG4 (mg/L) | 0.861 | 0.029 | 29.97 | <0.0001 |
 Time of follow up (months) | -0.074 | 0.023 | -3.21 | 0.0017 |
Regression model for volume of PG | ||||
 Log2 serum IgG4 (mg/L) | 2.619 | 0.076 | 34.27 | <0.0001 |
 Time of follow up (months) | 0.956 | 0.385 | 2.48 | 0.0143 |
 Interaction term | -0.077 | 0.033 | -2.30 | 0.0229 |