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Background The critical question of racial and gender diversity in pediatric anesthesia training programs has not been previously explored. The primary objective of this study was to evaluate trends by race/ethnicity and gender in pediatric anesthesiology fellowship training programs in the United States for the years 2000 to 2018. Methods Demographic data on pediatric anesthesiology fellows and anesthesiology residents were obtained from the self-reported data collected for the Journal of the American Medical Association's annual report on Graduate Medical Education for the years 2000 to 2018. Diversity was assessed by calculating the proportions of trainees per year by gender and racial/ethnic groups in pediatric anesthesiology fellowship and anesthesiology residency programs. Logistic regression equations were developed to estimate the annual growth rate of each racial/ethnic groups. Results The number of pediatric anesthesiology fellows increased from 57 trainees in 2000-2001 to 202 in 2017-2018 at an average rate of 9 fellows per year (95% confidence interval [CI], 8-10). These increases were primarily due to white trainees (54.4%-63.4%) as the proportions of black (7.0%-4.5%), Asian (26.3%-21.3%), and other minority (12.3%-10.9%) trainees have remained low. The number of anesthesiology residents increased from 3950 trainees in 2000-2001 to 5940 in 2017-2018 at an average rate of 99 residents per year (95% CI, 88-111). Within all anesthesiology trainees, these increases were due to white trainees (55.7%-61.3%) as the proportion of black (5.0%-6.0%), Asian (25.8%-24.1%), and other minority trainees (8.2%-8.5%) has remained fairly constant over the time period. Despite the overall lower proportion of female anesthesiology residents (range: 27.0%-37.5%), a steady increase in the number of women in pediatric anesthesiology fellowship programs has reversed the gender imbalance in this population as of 2010. Conclusions While historic gains have been made in gender diversity in pediatric anesthesiology, there is persistent underrepresentation of black and Hispanic trainees in pediatric anesthesiology. It appears that their low numbers in anesthesiology residency programs (the reservoir) may be partly responsible. Efforts to increase ethnic/racial diversity in pediatric anesthesiology fellowship and anesthesiology residency training programs are urgently needed.

Objective We characterized patterns of preoperative opioid use in patients undergoing elective surgery to identify the relationship between preoperative use and subsequent opioid fill after surgery. Background Preoperative opioid use is common, and varies by dose, recency, duration, and continuity of fills. To date, there is little evidence to guide postoperative prescribing need based on prior opioid use. Methods We analyzed claims data from Clinformatics DataMart Database for patients aged 18 to 64 years undergoing major and minor surgery between 2008 and 2015. Preoperative use was defined as any opioid prescription filled in the year before surgery. We used cluster analysis to group patients by the dose, recency, duration, and continuity of use. Our primary outcome was second postoperative fill within 30 postoperative days. Our primary explanatory variable was opioid use group. We used logistic regression to examine likelihood of second fill by opioid use group. Results Out of 267,252 patients, 102,748 (38%) filled an opioid prescription in the 12 months before surgery. Cluster analysis yielded 6 groups of preoperative opioid use, ranging from minimal (27.6%) to intermittent (7.7%) to chronic use (2.7%). Preoperative opioid use was the most influential predictor of second fill, with larger effect sizes than other factors even for patients with minimal or intermittent opioid use. Increasing preoperative use was associated with risk-adjusted likelihood of requiring a second opioid fill compared with naive patients [minimal use: odds ratio (OR) 1.49, 95% confidence interval (95% CI) 1.45-1.53; recent intermittent use: OR 6.51, 95% CI 6.16-6.88; high chronic use: OR 60.79, 95% CI 27.81-132.92, all P values Conclusion Preoperative opioid use is common among patients who undergo elective surgery. Although the majority of patients infrequently fill opioids before surgery, even minimal use increases the probability of needing additional postoperative prescriptions in the 30 days after surgery when compared with opioid-naive patients. Going forward, identifying preoperative opioid use can inform surgeon prescribing and care coordination for pain management after surgery.