Table 2.

Internal consistency of PBC-40 and its six domains as measured by Cronbach’s α (total PBC population and individual PBC cohorts)

	All patients (n = 374)	Larissa (n = 300)	Crete (n = 74)
Symptoms	0.75	0.74	0.75
Itch	0.77	0.77	0.78
Fatigue	0.70	0.70	0.70
Cognition	0.74	0.73	0.74
Emotional	0.75	0.75	0.76
Social	0.71	0.71	0.70
PBC-40 scale	0.77	0.76	0.77

PBC: Primary biliary cholangitis.