Table 2.

Mean change during the first 6 years from baseline of the 14 PRO dimensions studied

Patient-reported outcome	PFA time-adjusted change a	TKA time-adjusted change a	Mean difference (95% CI)	p value
SF-36 Bodily pain	35 ± 19	23 ± 17	12 (4 to 20)	0.004
SF-36 Physical role	25 ± 33	23 ± 39	2 (-13 to 18)	0.79
SF-36 Physical functioning	25 ± 18	14 ± 18	11 (3 to 18)	0.008
SF-36 Emotional role	18 ± 40	14 ± 43	4 (-14 to 22)	0.65
SF-36 Vitality	12 ± 19	7 ± 18	5 (-3 to 13)	0.18
SF-36 Social role	6 ± 17	2 ± 20	4 (-4 to 11)	0.38
SF-36 Mental health	6 ± 14	2 ± 15	5 (-2 to 11)	0.15
SF-36 General health	4 ± 16	4 ± 15	1 (-6 to 7)	0.88
KOOS Pain	30 ± 15	24 ± 18	6 (-1 to 13)	0.08
KOOS Symptoms	20 ± 17	8 ± 18	12 (5 to 20)	0.002
KOOS ADL	25 ± 14	24 ± 17	2 (-5 to 8)	0.60
KOOS Sport/Recreation	20 ± 20	11 ± 19	8 (0 to 17)	0.048
KOOS QoL	31 ± 18	26 ± 19	6 (-2 to 14)	0.15
OKS	13 ± 6	9 ± 7	5 (2 to 8)	0.002

^aData are presented as mean ± SD; SF-36 range is 0-100 (best), MCID is 6-7 for physical dimensions; KOOS range is 0-100 (best), MCID is 8-10; OKS range is 0-48 (best), MCID is 5.