Table 3 Correlations of the Overall Disability Sum Score and other studied parameters, 1 month after finishing immunotherapy

Patients’ ages

0.13

0.56

Neuropathic Pain Scale

0.05

0.81

Hamilton Anxiety Scale

− 0.27

0.24

Montgomery–Åsberg Depression Rating Scale

− 0.11

0.62

Mean sleep latency of MSLT (min)

− 0.10

0.66

Total sleep time (hours)

− 0.02

0.92

Wake after sleep onset (hours)

− 0.07

0.75

Sleep efficiency (%)

0.08

0.72

Sleep stage transition index (/hour)

0.024

0.30

Apnea hypopnea index (/hour)

− 0.15

0.52

Arousal index (/hour)

0.07

0.76

Snore Index (/hour)

0.09

0.69

Periodic limb movements index (/hour)

− 0.013

0.95