Corrigendum

Re: Vorsanger G, Xiang J, Biondi D, et al. Post hoc analyses of data from a 90-day clinical trial evaluating the tolerability and efficacy of tapentadol immediate release and oxycodone immediate release for the relief of moderate to severe pain in elderly and nonelderly patients. Pain Res Manage 2011;16(4):245–251.

In the Methods section (page 246), the dose of opioids that patients could have been taking was incorrectly described as “equivalent to 80 mg or more of oral morphine per day.” The dose of opioids that patients were permitted to take prior to the study should have been reported as “equivalent to no more than 80 mg of oral morphine per day.” With that correction, the sentence reads as follows: “Eligible patients required daily doses of analgesia for treatment of chronic pain, which may have consisted of nonsteroidal anti-inflammatory drugs or opioids (equivalent to no more than 80 mg of oral morphine per day) taken alone or in combination for at least 30 days before enrollment”.