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Serum IgG3 levels
| Control* (mean ± SD) | PD* (mean ± SD) | P value | |
|---|---|---|---|
| 2016 PDBP sample | 0.701 ± 0.391 (n = 53) | 1.029 ± 0.696 (n = 69) | 0.0023 |
| 2018 PPMI sample | 0.940 ± 0.492 (n = 99) | 0.947 ± 0.485 (n = 99) | 0.9110 |
PD, Parkinson’s disease. *Units: mg/ml. P values from Student’s independent samples t tests
