Table 2. Predicted and observed group membership using a classification tree model with intrathecal IgG production and NFL.
The formula for age adjusted NFL is given by NFL– 203.3–15.9 * Age (y), as estimated by linear regression in healthy controls.
Decision rule | Observed | ||
---|---|---|---|
SC | RRMS | OD | |
SC: No intrathecal IgG production and Age adjusted NFL < 148 | 77 | 2 | 16 |
OD/RRMS:No intrathecal IgG production and Age adjusted NFL ≥ 148 | 1 | 3 | 8 |
RRMS/OD: Intrathecal IgG production | 3 | 66 | 9 |
IgG = immoglobulin G, NFL = neurofilament light, RRMS = relapsing remitting multiple sclerosis, SC = symptomatic controls, OD = patients with other disease