Table 1.

Required and additional THA preoperative and 3 month postoperative PROMs [4]

THA PROMs set	PROM	Preoperative	3 months postoperative
Required PROMs	Pain by Numeric Rating Scale (NRS) – at rest (0 = no pain and 10 = unbearable pain)	✓	✓
	Pain by NRS – during activity (0 = no pain and 10 = unbearable pain)	✓	✓
	Quality of life by 3-level version of EuroQol 5 dimensions (EQ-5D-3L) (EQ VAS: 0 = worst imaginable health state and 100 = best imaginable health state; EQ-5D descriptive system: 0 = dead and 1 = healthy)	✓	✓
	Physical functioning by Hip disability and Osteoarthritis Outcome Score-Physical function Short-form (HOOS-PS) (0 = no difficulty and 100 = extreme difficulty) [8, 9]	✓	✓
	Anchor hip function (1 = very much deteriorated and 7 = very much improved)		✓
Additional PROMs	Hip specific function and pain by Oxford Hip Score (OHS) (0 = least difficulty and 48 = most difficulty) [10]	✓	✓
	Anchor hip pain (1 = very much deteriorated and 7 = very much improved)		✓
	Satisfaction by NRS (0 = very dissatisfied and 10 = very satisfied)		✓

PROMs patient-reported outcome measures, THA total hip arthroplasty