- Kitabchi AE, Umpierrez GE, Miles JM, Fisher JN. Hyperglycemic crises in adult patients with diabetes. Diabetes Care. 2009;32(7):1335–1343. doi:10.2337/dc09-9032.
- Benoit SR, Zhang Y, Geiss LS, Gregg EW, Albright A. Trends in diabetic ketoacidosis hospitalizations and in-hospital mortality—United States, 2000–2014. MMWR Morb Mortal Wkly Rep. 2018;67(12):362–365. doi:10.15585/mmwr.mm6712a3.
- Centers for Disease Control and Prevention. Coexisting conditions and complications—diabetes. 2022. Accessed April 16, 2023. https://www.cdc.gov/diabetes/data/statistics-report/coexisting-conditions-complications.html.
- Aylin P, Majeed FA. The killing season—fact or fiction? BMJ. 1994;309(6970):1690–1690. doi:10.1136/bmj.309.6970.1690.
- Phillips DP, Barker GEC. A July spike in fatal medication errors: a possible effect of new medical residents. J Gen Intern Med. 2010;25(8):774–779. doi:10.1007/s11606-010-1356-3.
- Zogg CK, Metcalfe D, Sokas CM, et al. Reassessing the July effect: 30 years of evidence show no difference in outcomes. Ann Surg. 2023;277(1):e204–11–e211. doi:10.1097/SLA.0000000000004805.
- Jena AB, Sun EC, Romley JA. Mortality among high-risk patients with acute myocardial infarction admitted to US teaching-intensive hospitals in July: a retrospective observational study. Circulation. 2013;128(25):2754–2763. doi:10.1161/CIRCULATIONAHA.113.004074.
- AHRQ. Introduction to the HCUP National Inpatient Sample (NIS), 2016. Accessed April 19, 2023. https://hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2016.jsp.
- AHRQ. Introduction to the HCUP National Inpatient Sample (NIS), 2020. Accessed April 19, 2023. https://hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2020.jsp.
- AHRQ. Introduction to the HCUP National Inpatient Sample (NIS), 2019. Accessed April 19, 2023. https://hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2019.jsp.
- AHRQ. Introduction to the HCUP National Inpatient Sample (NIS), 2018. Accessed April 19, 2023. https://hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2018.jsp.
- AHRQ. Introduction to the HCUP National Inpatient Sample (NIS), 2017. Accessed April 19, 2023. https://hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2017.jsp.
- Garcia S, Canoniero M, Young L. The effect of July admission in the process of care of patients with acute cardiovascular conditions. South Med J. 2009;102(6):602–607. doi:10.1097/SMJ.0b013e3181a2f8ca.
- Liu CY, Kung PT, Chang HY, Hsu YH, Tsai WC. Influence of admission time on health care quality and utilization in patients with stroke: analysis for a possible July effect and weekend effect. Int J Environ Res Public Health. 2021;18(23):12362. doi:10.3390/ijerph182312362.
- Alshekhlee A, Walbert T, DeGeorgia M, Preston DC, Furlan AJ. The impact of Accreditation Council for Graduate Medical Education duty hours, the July phenomenon, and hospital teaching status on stroke outcomes. J Stroke Cerebrovasc Dis. 2009;18(3):232–238. doi:10.1016/j.jstrokecerebrovasdis.2008.10.006.
- Patlolla SH, Truesdell AG, Basir MB, et al. No “July effect” in the management and outcomes of acute myocardial infarction: An 18‐year United States national study. Catheter Cardiovasc Interv. 2023;101(2):264–273. doi:10.1002/ccd.30553.
- Olanipekun T, Chris-Olaiya A, Esperti S, Nambudiri V, Duff R, Westney G. July effect on mortality and complications in patients with ARDS in US teaching hospitals. Am J Crit Care. 2021;30(4):e64–70–e70. doi:10.4037/ajcc2021608.
- Pasquel FJ, Tsegka K, Wang H, et al. Clinical outcomes in patients with isolated or combined diabetic ketoacidosis and hyperosmolar hyperglycemic state: a retrospective, hospital-based cohort study. Diabetes Care. 2020;43(2):349–357. doi:10.2337/dc19-1168.
- Zhang F, Bharadwaj A, Mohamed MO, Ensor J, Peat G, Mamas MA. Impact of Charlson Co-Morbidity Index score on management and outcomes after acute coronary syndrome. Am J Cardiol. 2020;130:15–23. doi:10.1016/j.amjcard.2020.06.022.
- Kolkailah AA, Abougergi MS, Desai PV, et al. Does the “July effect” of new trainees at teaching hospitals impact outcomes for patients hospitalized with heart failure? Real-world analyses of more than half a million US admissions. Am Heart J Plus. 2022;13:100072. doi:10.1016/j.ahjo.2021.100072.
- Metersky ML, Eldridge N, Wang Y, et al. Rates of adverse events in hospitalized patients after summer-time resident changeover in the United States: Is there a July effect? J Patient Saf. 2022;18(3):253–259. doi:10.1097/PTS.0000000000000887.
The “July effect” on patients admitted with diabetes ketoacidosis: a national retrospective cohort study
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