Table 2.

Correlation between clinical factors and endogenous IgG concentrations (n = 26).

Clinical factor		Correlation
Gender, male	11 (42.31%)	r = 0.244 (p = 0.229)
Age, years	55 ± 14.72	r = –0.183 (p = 0.372)
Course of the disease, months	3 (1–37)	r = –0.017 (p = 0.936)
ADL score	5.73 ± 4.12	r = 0.193 (p = 0.345)
Osserman classification III–IV	8 (30.77%)	r = –0.195 (p = 0.341)
Thymoma	11 (42.31%)	r = –0.068 (p = 0.743)
AChR antibody positive	23 (88.46%)	r = 0.281 (p = 0.164)
VNTR3/3 genotype	15 (57.69%)	r = 0.478 (p = 0.016)
Serum albumin levels, g/L	40.67 ± 4.56	r = –0.025 (p = 0.911)

Data are presented as number (%), mean ± standard deviation or median (range).

AChR, acetylcholine receptor; ADL, Activities of Daily Living; VNTR, variable number tandem repeat.