• Jinwook Hwang, Jay J Shen, Sun Jung Kim, Sung-Youn Chun, Pearl C Kim, Se Won Lee, David Byun, and Ji Won Yoo.
• Department of Thoracic and Cardiovascular Surgery, Korea University Medical Center, Ansan Hospital, Korea University College of Medicine, Ansan, South Korea.
• Medicine (Baltimore). 2020 Jun 19; 99 (25): e20723.

AbstractThis study aimed to analyze the trends of opioid use disorders, cannabis use disorders, and palliative care among hospitalized patients with gastrointestinal cancer and to identify their associated factors.We analyzed the National Inpatient Sample data from 2005 to 2014 and included hospitalized patients with gastrointestinal cancers. The trends of hospital palliative care and opioid or cannabis use disorders were analyzed using the compound annual growth rates (CAGR) with Rao-Scott correction for χ tests. Multivariate logistic regression analyses were performed to identify the associated factors.From 2005 to 2014, among 4,364,416 hospitalizations of patients with gastrointestinal cancer, the average annual rates of opioid and cannabis use disorders were 0.4% (n = 19,520), and 0.3% (n = 13,009), respectively. The utilization rate of hospital palliative care was 6.2% (n = 268,742). They all sharply increased for 10 years (CAGR = 9.61%, 22.2%, and 21.51%, respectively). The patients with a cannabis use disorder were over 4 times more likely to have an opioid use disorder (Odds ratios, OR = 4.029; P < .001). Hospital palliative care was associated with higher opioid use disorder rates, higher in-hospital mortality, shorter length of hospital stay, and lower hospital charges. (OR = 1.527, 9.980, B = -0.054 and -0.386; each of P < .001)The temporal trends of opioid use disorders and hospital palliative care use among patients with gastrointestinal cancer increased from 2005 to 2014, which is mostly attributed to patients with a higher risk of in-hospital mortality. Cannabis use disorders were associated with opioid use disorders. Palliative care was associated with both reduced lengths of stay and hospital charge.

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