Table 2.

Sample clinical characteristics of XLH adults aged 26 and over (N= 30)

	Mean	Range
Age at diagnosis	9	0–47

	N
XLH severity (self-reported)
Mild	7
Moderate	10
Severe	9
Don't know	4
Current treatments
None	5
Phosphate	22
Calcitriol/Vitamin D	24
Dental procedures	7
Surgery	6
Physiotherapy	13
Analgesicsa	22
Other treatments	9
Past treatments
Phosphate	28
Calcitriol/Vitamin D	29
Dental procedures	27
Surgery	22
Physiotherapy	21
Growth hormone	2
Analgesicsa	2
Other treatments	5
Family history (mother or father)
Yes	16
Nob	14
Co-morbidities
None	17
Musculoskeletal co-morbidities	7
Other co-morbidities	8

^aNot a prompted response option on the background questionnaire

^bReasons included having a parent with no confirmed diagnosis of XLH, being adopted and having a spontaneous gene mutation