Table 3.

Spearman’s rank correlation coefficients between CROMs and PROMs at baseline (t1) and after intervention (t2).

rho	Hip		Knee		Ankle
t1	aROM % t1	TUG t1	aROM % t1	TUG t1	aROM % t1	TUG t1
EQ-5D 5L mobility t1	−0.284 **	0.466 ***	−0.398 ***	0.311 **	−0.407 ***	0.393 ***
EQ-5D 5L self-care t1	−0.256 **	0.493 ***	−0.309 **	0.293 **	−0.154	0.187
EQ-5D 5L usual activities t1	−0.158	0.445 ***	−0.213 *	0.274 **	−0.211	0.139
EQ-5D 5L pain t1	−0.205	0.206 *	−0.249 *	0.170	−0.214	0.173
EQ-5D 5L anxiety/depression t1	−0.147	0.314 ***	−0.073	0.148	−0.112	0.161
EQ-5D 5L health t1	0.088	−0.205 *	0.289 **	−0.205 *	0.275 *	−0.340 **
NPRS t1	−0.248 **	0.197 *	−0.271 *	0.228 *	−0.315 **	0.334 **
HAQ-DI t1	−0.552 ***	0.713 ***	−0.531 ***	0.591 ***	−0.266 *	0.573 ***
WOMAC score t1	−0.407 ***	0.497 ***	−0.417 ***	0.447 ***	−0.345 **	0.388 ***
rMean [25]	0.262	0.394	0.307	0.298	0.257	0.295
rho	Hip		Knee		Ankle
t2	aROM % t2	TUG t2	aROM % t2	TUG t2	aROM % t2	TUG t2
EQ-5D 5L mobility t2	−0.281 **	0.440 ***	−0.393 ***	0.396 ***	−0.362 **	0.439 ***
EQ-5D 5L self-care t2	−0.258 *	0.483 ***	−0.417 ***	0.206	−0.226	0.350 **
EQ-5D 5L usual activities t2	−0.284 **	0.518 ***	−0.255 *	0.368 **	−0.206	0.547 ***
EQ-5D 5L pain t2	−0.144	0.218 *	−0.215	0.147	−0.193	0.251 *
EQ-5D 5L anxiety/depression t2	−0.064	0.246 *	0.018	0.109	−0.195	0.202
EQ-5D 5L health t2	0.115	−0.228 *	0.407 ***	−0.272 *	0.139	−0.389 **
NPRS t2	−0.137	0.014	−0.314 **	0.160	−0.138	0.348 **
HAQ-DI t2	−0.426 ***	0.711 ***	−0.494 ***	0.606 ***	−0.262 *	0.597 ***
WOMAC score t2	−0.426 ***	0.477 ***	−0.452 ***	0.371 **	−0.219	0.481 ***
rMean [25]	0.238	0.373	0.331	0.294	0.217	0.403

rho, Spearman’s rank correlation; * p < 0.05; ** p < 0.01; *** p < 0.001.