Serological Immunoglobulin-Free Light Chain Profile in Myasthenia Gravis Patients

Table 1

κ, λ, and k/λ ratio mean values in patients and controls.

	κ-free mg/L	λ-free mg/L	κ/λ
AChR-MG	33.14 ± 26.29 ()	18.76 ± 11.79 ()	1.69 ± 0.47 ()
MuSK-MG	27.02 ± 16.98 ()	14.54 ± 8.24 (p n.s.)	1.75 ± 0.52 ()
SARD	71.65 ± 115.55 ()	52.14 ± 101.54 (p n.s.)	1.76 ± 0.73 ()
HBD	16.09 ± 4.28	11.82 ± 3.07	1.39 ± 0.28

Normal range for FLCs: 3.3–19.4 mg/L for κ and 5.7–26.3 mg/L for λ. A ratio of κ/λ < 0.26 or >1.65 is abnormal; p was calculated between each patient group and HBD. n.s.: not significant.