(HealthDay)—Certain factors may help clinicians identify which patients are more likely to have greater opioid use in the first month after major surgery, according to a study published online Aug. 5 in the Annals of Surgery.

Daniel B. Larach, M.D., from the University of Southern California in Los Angeles, and colleagues sought to determine preoperative patient characteristics associated with postoperative outpatient opioid use one month following hysterectomy, thoracic surgery, and total knee and hip arthroplasty. Additionally, the frequency of postoperative opioid overprescribing was assessed. The analysis included 1,181 patients, of whom 1,001 had complete primary outcome data and 913 had complete phenotype self-report data.

The researchers found that younger age, nonwhite race, lack of a college degree, higher anxiety, greater sleep disturbance, heavy alcohol use, current tobacco use, and larger initial opioid prescription size were significantly associated with increased opioid consumption. The median total oral morphine equivalents prescribed was 120 5-mg hydrocodone pills, whereas the median opioid consumption was 38 pills.

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