The association between pain catastrophizing, physical function and pain in a cohort of patients undergoing knee arthroplasty

Table 3 Association between preoperative pain catastrophizing score and pain measured 12 months after knee arthroplasty

	Moderate/severe pain vs mild/very mild/no pain
Variable	Odds ratio^a	(95% CI)	P-value
TKA (n = 419)
PCS < 11	ref
PCS 11–21	2.2	(1.1, 4.4)	0.03
PCS > 21	2.7	(1.4, 5.2)	0.003
UKA (n = 159)
PCS < 11	ref
PCS 11–21	0.4	(0.1, 2.8)	0.44
PCS > 21	4.8	(1.1, 21.7)	0.04

^aAdjusted for sex, age, BMI, alcohol, smoking, operated bilateral (patients having two arthroplasties within 12 months) and co-morbidity

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