Table 2.

Composite Reliability and standardized factor loadings of the PBC-27.

	Italian	Japanese	Spanish	English
Factor 1: symptoms - CR	0.65	0.72	0.71	0.84
Felt bloated/ate or drank	0.44	0.74	0.63	0.72
Right side discomfort	0.62	0.57	0.73	0.84
Aches long bones	0.77	0.73	0.66	0.82
Factor 2: dryness - CR	0.63	0.75	0.77	0.85
Dry eyes	0.58	0.71	0.71	0.88
Dry mouth	0.77	0.83	0.86	0.85
Factor 3: itch – CR	0.81	0.92	0.89	0.95
Itching/sleep	0.68	0.85	0.84	0.94
Scratched so much	0.84	0.89	0.84	0.92
Felt embarrassed	0.8	0.92	0.89	0.94
Factor 4: fatigue – CR	0.92	0.93	0.94	0.96
Had to force myself/out of bed	0.68	0.71	0.64	0.83
Had to have a sleep	0.6	0.63	0.63	0.69
Daily routine	0.86	0.90	0.87	0.89
Felt worn out	0.85	0.90	0.90	0.94
Felt tired/force myself	0.88	0.90	0.93	0.94
Felt tired/go to bed early	0.73	0.75	0.84	0.85
Fatigue hit me	0.8	0.83	0.79	0.87
Long time to do anything	0.74	0.73	0.90	0.89
Factor 5: cognitive – CR	0.87	0.90	0.92	0.95
Effort/remember things	0.77	0.72	0.78	0.86
Concentration span	0.79	0.88	0.88	0.90
Keeping un with conversation	0.73	0.79	0.76	0.90
Difficult concentrate	0.77	0.89	0.91	0.91
Remember/what I wanted to do	0.75	0.76	0.82	0.86
Factor 6: emotional – CR	0.77	0.75	0.73	0.81
I get more stressed	0.85	0.81	0.76	0.86
Worry about the future	0.78	0.72	0.79	0.82
Feel guilty	0.53	0.58	0.49	0.61
Factor 7: social – CR	0.83	0.89	0.88	0.88
I can’t go out/enjoy myself	0.81	0.82	0.84	0.83
Can’t plan holidays	0.73	0.92	0.79	0.80
Social life stopped	0.81	0.82	0.89	0.89
Abbreviation: CR ​= ​Composite Reliability