Abstract
BackgroundWe examined analgesic drug use before and after total hip arthroplasty (THA) by sex and age, and impact of comorbidity in that context. MethodsUsing Danish nationwide medical registries, we included 105,520 THA patients (1996–2018). We calculated prevalence of overall analgesic drug use and use of NSAIDs and opioids separately in four quarters before (–Q4 to –Q1) and after THA (Q1 to Q4). –Q4 and Q4 was compared using prevalence rate ratios (PRR) with 95% confidence interval (CI). ResultsAmong women, analgesic drug use was 46% in –Q4, 65% in Q1, but decreased to 31% in Q4 (PRR: 0.68 (CI: 0.67–0.69)). Among men, these numbers were 39% in –Q4, 62% in Q1, and 23% in Q4 (PRR: 0.61 (CI: 0.60–0.63)). Analgesic drug use was higher among older patients in all quarters except Q1. Analgesic drug use decreased from 40% in –Q4 to 25% in Q4 (PRR: 0.62 (CI: 0.59–0.64)) in patients <55 years, and from 44% to 30% in patients >85 years, (PRR: 0.67 (CI: 0.63–0.71)). Women used more NSAIDs and opioids than men. Older patients used more opioids compared to younger, while variation in NSAID use by age was small. Decrease in analgesic drug use from -Q4 to Q4 was least pronounced in patients with comorbidity history. ConclusionsWomen and older patients have higher prevalence of analgesic drug use before and after THA, and a smallest reduction in analgesic drug use from before to after THA. Comorbidity history modified these associations.
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