Using four different clinical tools as predictors for pain after total hip arthroplasty: a prospective cohort study

Table 3 Multiple linear regression model for NRS pain by PVC. Adjusted and unadjusted

Dependent variable	Independent variable	Beta Estimate NRS (95% CI)	P-value	R²
Pain at 24 h (mobilization) Unadjusted	NRS by PVC ≤/> 2	0.88 (− 0.18;1.94)	0.10	0.27
Pain at 24 h (mobilization) Adjusted	NRS by PVC ≤/> 2	0.24^a(0.14;2.43)	0.03	0.20
Pain at 24 h (at rest) Unadjusted	NRS by PVC ≤/> 2	1.13 (0.14;2.12)	0.03	0.05
Pain at 24 h (at rest) Adjusted	NRS by PVC ≤/> 2	0.18^a(−0.22;2.06)	0.11	0.13

Adjusted for; sex, age, patients pain threshold, marital status, education, daily analgesic consumption, PCS and employment
NRS Numerical Rating Scale. PVC Peripheral Venous Cannulation. CI Confidence Interval ^aStandardized Beta value

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