Open Access

Table 2

Preoperative risk factors for unexplained persistent pain (multivariable).

Preoperative variables Multivariable
OR 95% CI
 No 7.4 1.9–29.3
 Retired 0.6 0.1–3.3
Ongoing insurance case
 Yes 17.7 2.8–110.1
 Low risk
 High risk 3.4 1.0–11.9

OR, odds ratio; CI, confidence interval; STAI, State-Trait Anxiety FORM Y.

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