Table 1.

Composition of the factors of FPHPQ.

Factor	Name	Number of items	Question no.
1	Pain associated with heat or exertion	9	2a, 20, 22a, 22b, 22d, 23a, 23b, 23d, 26
2	Pain associated with cold	5	3a, 22c, 23c, 24 25
3	Abdominal pain and fatigue	9	2c, 3c, 5, 6, 7, 9, 10, 12, 13

See Ramaswami U (2012) [16] for the question text and factor structure of the FPHPQ.