PMID- 35227230 OWN - NLM STAT- MEDLINE DCOM- 20220318 LR - 20220318 IS - 1472-6823 (Electronic) IS - 1472-6823 (Linking) VI - 22 IP - 1 DP - 2022 Feb 28 TI - Elevated blood urea nitrogen-to-creatinine ratio increased the risk of Coronary Artery Disease in patients living with type 2 diabetes mellitus. PG - 50 LID - 10.1186/s12902-022-00954-3 [doi] LID - 50 AB - BACKGROUND: High Blood Urea Nitrogen (BUN) and high Serum Creatinine (SCr) levels are risk factors for Coronary Artery Disease (CAD). However, the relationship between the Blood Urea Nitrogen to Creatinine (BUN/SCr) ratio (UCR) and the risk of CAD in patients living with new-onset diabetes is unclear. This study aimed to examine the relationship between blood UCR and the risk of CAD in patients living with new-onset type 2 diabetes mellitus (T2DM). METHODS: We analyzed the data from the cohort of 12,299 patients living with type 2 diabetes mellitus. Primary endpoints were the events of CAD. The ANOVA test (continuous indicators) and chi(2) test (categorical indicators) were used to assess the differences of baseline characteristics across the groups of UCR. In order to understand the correlation between variables, we performed correlation analysis on variables that have significant differences between CAD group and non-CAD group. Multivariate-adjusted Cox proportional hazard regression models were applied to estimate the association of the blood UCR with the risk of CAD in patients living with T2DM. The Kaplan-Meier survival function plotting and the log-rank test were used to evaluate the event-free survival according to the groups of UCR. The restricted cubic spline model was used to show the adjusted association between blood UCR and risk of CAD in patients living with T2DM. RESULTS: During a median follow-up of 2.66 years, 1173 CAD were recorded with an event rate of 28.49 events per 1000 person-years. In multivariate-adjusted Cox regression models, elevated blood urea nitrogen to creatinine ratio (UCR) was associated with higher risk of CAD in patients living with T2DM [hazard ratio (HR), 1.782; 95% confidence interval (CI), 1.237-2.567]. The Kaplan-Meier survival curves indicated that the high group of UCR tended to have a lower event-free survival than the low group and medium group. There was a nonlinear trend toward increasing risk of CAD across the groups of UCR. And cubic spline function graph suggested that the influence of UCR level on HR for CAD increased significantly at UCR levels above 6.67. CONCLUSIONS: An elevated UCR was significantly associated with an increased risk for CAD in patients living with T2DM. CI - (c) 2022. The Author(s). FAU - Liu, Feng AU - Liu F AD - Center for Quality Control and Improvement of Physical Examination, Beijing Physical Examination Center, No. 1, Yard 81, Fucheng Road, Beijing, Haidian District, China. liufeng@bjtjzx.com. FAU - Ma, Guanhui AU - Ma G AD - Research Center of Digital Health China, Health and Medical Research Institute, Jinan, China. AD - Department of Big Data, Kangping Medical Health Co. Ltd, Jinan, China. FAU - Tong, Chao AU - Tong C AD - School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmen, Beijing, 100069, China. FAU - Zhang, Shan AU - Zhang S AD - School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmen, Beijing, 100069, China. FAU - Yang, Xinghua AU - Yang X AD - School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmen, Beijing, 100069, China. xinghuayang@ccmu.edu.cn. FAU - Xu, Cong AU - Xu C AD - Department of Big Data, Kangping Medical Health Co. Ltd, Jinan, China. FAU - Yang, Weihao AU - Yang W AD - Research Center of Digital Health China, Health and Medical Research Institute, Jinan, China. FAU - Xia, Guobao AU - Xia G AD - Center for Quality Control and Improvement of Physical Examination, Beijing Physical Examination Center, No. 1, Yard 81, Fucheng Road, Beijing, Haidian District, China. FAU - Li, Mingliang AU - Li M AD - Center for Quality Control and Improvement of Physical Examination, Beijing Physical Examination Center, No. 1, Yard 81, Fucheng Road, Beijing, Haidian District, China. LA - eng GR - 2018-1-2241/Research Special Fund of Capital Health Development/ PT - Journal Article DEP - 20220228 PL - England TA - BMC Endocr Disord JT - BMC endocrine disorders JID - 101088676 RN - AYI8EX34EU (Creatinine) SB - IM MH - Adult MH - Aged MH - *Blood Urea Nitrogen MH - China/epidemiology MH - Cohort Studies MH - Coronary Artery Disease/*blood/*epidemiology MH - Creatinine/*blood MH - Diabetes Mellitus, Type 2/*complications MH - Female MH - Humans MH - Kaplan-Meier Estimate MH - Male MH - Middle Aged MH - Proportional Hazards Models MH - Risk Factors MH - Survival Analysis PMC - PMC8883664 OTO - NOTNLM OT - CAD OT - Cox regression OT - Cubic spline function OT - Kaplan-Meier survival OT - T2DM OT - UCR COIS- The authors declare that they have no competing interests. EDAT- 2022/03/02 06:00 MHDA- 2022/03/19 06:00 PMCR- 2022/02/28 CRDT- 2022/03/01 05:42 PHST- 2021/07/05 00:00 [received] PHST- 2022/01/31 00:00 [accepted] PHST- 2022/03/01 05:42 [entrez] PHST- 2022/03/02 06:00 [pubmed] PHST- 2022/03/19 06:00 [medline] PHST- 2022/02/28 00:00 [pmc-release] AID - 10.1186/s12902-022-00954-3 [pii] AID - 954 [pii] AID - 10.1186/s12902-022-00954-3 [doi] PST - epublish SO - BMC Endocr Disord. 2022 Feb 28;22(1):50. doi: 10.1186/s12902-022-00954-3.