Table 2.

Characteristics of the included articles.

General characteristics			Value
Unique PROMsa identified, n			238
Unique countries identified, n			53b
Unique languages identified, n			35c
Sample size,d n (%)
	<30	6 (2.42)
	30-49	6 (2.42)
	50-99	24 (9.68)
	>100	203 (81.85)
Mean aged (years), n (%)
	30-39	3 (1.21)
	40-49	10 (4.03)
	50-59	108 (43.55)
	60-69	80 (32.26)
	≥70	11 (4.44)
Proportion of males,e n (%)
	<0.5	114 (45.97)
	0.5 < x <0.6	83 (33.47)
	0.6 < x < 0.7	25 (10.08)
	0.7 < x < 0.8	3 (1.21)
	0.8 < x < 0.9	2 (0.81)
Disease characteristics: disease duration (years),e n (%)
	0 < mean disease duration < 10	73 (29.44)
	10 < mean disease duration < 20	67 (27.02)
	20 < mean disease duration < 30	1 (0.40)

^aPROMs: patient-reported outcome measures.

^bSome countries were not reported.

^cSome languages were not reported.

^dInclusive of multiple studies reported on the same sample.

^eSome values were reported as median and range or were not reported.