Development of a patient-reported outcome measure (PROM) and change measure for use in early recovery following hip or knee replacement

Journal of Patient-Reported Outcomes

Table 12 Mean domain scores for OARS

	Day 1	Day 2	Day 3	Day 7	Day 14	6 weeks
Pain
Mean	25.04	27.32	30.99	35.09	42.55	55.18
N	149	148	145	140	135	128
SD	20.99	21.54	17.08	19.11	21.60	26.51
Range	100	93.75	87.5	93.75	100	93.75
Minimum	0	0	0	0	0	6.25
Maximum	100	93.75	87.5	93.75	100	100
Nausea and feeling unwell
Mean	44.83	46.90	55.17	68.66	78.47	86.12
N	150	149	145	140	135	127
SD	27.46	25.29	22.97	21.03	20.21	16.42
Range	100	100	100	87.5	81.25	93.75
Minimum	0	0	0	12.5	18.75	6.25
Maximum	100	100	100	100	100	100
Fatigue and sleep
Mean	32.72	39.43	46.35	50.00	50.18	63.16
N	150	149	146	141	136	126
SD	31.51	31.73	28.28	27.53	30.61	28.99
Range	100	100	100	100	100	100
Minimum	0	0	0	0	0	0
Maximum	100	100	100	100	100	100
Improving Function and Mobility
Mean	37.38	46.32	54.71	66.43	78.67	85.48
N	142	147	145	140	134	128
SD	30.07	26.82	23.89	21.16	17.08	16.24
Range	100	100	100	100	75	66.67
Minimum	0	0	0	0	25	33.33
Maximum	100	100	100	100	100	100