{"title":"Advanced maternal age is a risk factor for both early and late gestational diabetes mellitus: The Japan Environment and Children's Study.","authors":"Kazuma Tagami, Noriyuki Iwama, Hirotaka Hamada, Hasumi Tomita, Rie Kudo, Natsumi Kumagai, Hongxin Wang, Seiya Izumi, Zen Watanabe, Mami Ishikuro, Taku Obara, Hirohito Metoki, Yuichiro Miura, Chiharu Ota, Takashi Sugiyama, Shinichi Kuriyama, Takahiro Arima, Nobuo Yaegashi, Masatoshi Saito","doi":"10.1111/jdi.14400","DOIUrl":"https://doi.org/10.1111/jdi.14400","url":null,"abstract":"<p><strong>Aims: </strong>This study investigated the association between maternal age and early and late gestational diabetes mellitus (GDM).</p><p><strong>Methods: </strong>In total, 72,270 pregnant women were included in this prospective birth cohort study. Associations between maternal age and early GDM (diagnosed at <24 gestational weeks) and late GDM (diagnosed at ≥24 gestational weeks) were evaluated using a multinomial logistic regression model with possible confounding factors. The reference category was maternal age of 30-34.9 years.</p><p><strong>Results: </strong>Higher maternal age was associated with higher odds of early and late GDM (P-value for trend <0.0001 and <0.0001, respectively). The adjusted odds ratios (aORs) for early GDM with maternal age of 35-39.9 years and ≥40 were 1.399 (95% confidence interval [CI]: 1.134-1.725) and 2.494 (95% CI: 1.828-3.402), respectively. The aORs for late GDM with maternal age of 35-39 years and ≥40 were 1.603 (95% CI: 1.384-1.857) and 2.276 (95% CI: 1.798-2.881), respectively.</p><p><strong>Conclusions: </strong>Higher maternal age was associated with an increased risk of GDM regardless of when GDM was diagnosed. The association between maternal age and early GDM was similar to that between maternal age and late GDM.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of high-intensity interval walking training on muscle strength, walking ability, and health-related quality of life in people with diabetes accompanied by lower extremity weakness: A randomized controlled trial.","authors":"Yasuko Ichihara, Hiroyasu Mori, Motomu Kamada, Tetsuya Matsuura, Koichi Sairyo, Mizusa Hyodo, Rie Tsutsumi, Hiroshi Sakaue, Ken-Ichi Aihara, Makoto Funaki, Akio Kuroda, Munehide Matsuhisa","doi":"10.1111/jdi.14399","DOIUrl":"https://doi.org/10.1111/jdi.14399","url":null,"abstract":"<p><strong>Aims/introduction: </strong>This study examined the effects of high-intensity interval walking training (IWT) compared to moderate-intensity continuous walking training (CWT) on muscle strength, walking ability, and health-related quality of life (QOL) in people with diabetes accompanied by lower extremity weakness.</p><p><strong>Materials and methods: </strong>People with diabetes accompanied by low isometric knee extensor strength using a simple manual dynamometer (n = 50) were screened and randomly divided into 2 groups: CWT (n = 25) and IWT (n = 25). Both groups were instructed by a physical therapist to perform walking training with the goal of 120 min/week over a 5-month period. The primary outcome, mean change of isometric knee extensor strength, and secondary outcomes, such as gait speed and health-related QOL, were measured at baseline and the end of the intervention.</p><p><strong>Results: </strong>At the end of the intervention, there was no significant difference in the degree of change in isometric knee extension strength between the two groups. However, there was a significant increase in changes in gait speed and physical QOL in the IWT group (gait speed, P < 0.01; physical QOL, P < 0.05).</p><p><strong>Conclusions: </strong>The present study showed that IWT for people with diabetes accompanied by lower extremity weakness did not improve knee extension muscle strength compared to CWT but did improve walking ability and physical QOL.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Clinical significance of small dense low-density lipoprotein cholesterol measurement in type 2 diabetes.","authors":"Tsutomu Hirano","doi":"10.1111/jdi.14398","DOIUrl":"https://doi.org/10.1111/jdi.14398","url":null,"abstract":"<p><p>Low-density lipoprotein cholesterol (LDL-C) is known to be a causal substance of atherosclerosis, but its usefulness as a predictive biomarker for atherosclerotic cardiovascular disease (ASCVD) is limited. In patients with type 2 diabetes (T2D), LDL-C concentrations do not markedly increase, while triglycerides (TG) concentrations are usually elevated. Although TG is associated with ASCVD risk, they do not play a direct role in the formation of atheromatous plaques. TG changes the risk of ASCVD in a way that is dependent on LDL-C, and TG is the primary factor in reducing LDL particle size. Small dense (sd)LDL, a potent atherogenic LDL subfraction, best explains the \"Atherogenic Duo\" of TG and LDL-C. Although hypertriglyceridemia is associated with small-sized LDL, patients with severe hypertriglyceridemia and low LDL-C rarely develop ASCVD. This suggests that quantifying sdLDL is more clinically relevant than measuring LDL size. We developed a full-automated direct sdLDL-C assay, and it was proven that sdLDL-C is a better predictor of ASCVD than LDL-C. The sdLDL-C level is specifically elevated in patients with metabolic syndrome and T2D who have insulin resistance. Due to its clear link to metabolic dysfunction, sdLDL-C could be named \"metabolic LDL-C.\" Insulin resistance/hyperinsulinemia promotes TG production in the liver, causing steatosis and overproduction of VLDL1, a precursor of sdLDL. sdLDL-C is closely associated with steatotic liver disease and chronic kidney disease, which are common complications in T2D. This review focuses on T2D and discusses the clinical significance of sdLDL-C including its composition, pathophysiology, measurements, association with ASCVD, and treatments.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Smoking and diabetic nephropathy: An updated systematic review and meta-analysis.","authors":"Haihui Zhu, Liang Li, Songchun Liu, Jing Li","doi":"10.1111/jdi.14385","DOIUrl":"https://doi.org/10.1111/jdi.14385","url":null,"abstract":"<p><strong>Objectives: </strong>Several studies have reported the potential association between smoking and diabetic nephropathy. However, the studies of non-significant association results were against the association between smoking and diabetic nephropathy. Therefore, the relationship between smoking and diabetic nephropathy was still debated and controversial.</p><p><strong>Methods: </strong>Prospective cohort studies were included in the current meta-analysis. The tobacco smoking (current smokers or former smokers) and non-smoking groups in the enrolled studies were compared for the hazard ratio (HR) of diabetic nephropathy. Fifteen studies with 221,821 subjects were included in this meta-analysis. Subgroup analysis of the type 1 diabetes and type 2 diabetes groups was also performed individually to investigate the effects of different types of diabetes on the relationship between smoking and diabetic nephropathy.</p><p><strong>Results: </strong>Current smoking was significantly associated with a greater log HR of diabetic nephropathy [1.44 (1.22-1.70), Z = 4.39]. In addition, former smoking was significantly associated with diabetic nephropathy [log HR = 1.04 (1.03-1.05), Z = 8.02]. The individual subgroup analysis of type 1 diabetes and type 2 diabetes subjects showed that smoking might be both significantly associated with greater log HRs of diabetic nephropathy.</p><p><strong>Discussion: </strong>Current and former smoking might be the risk factors for diabetic nephropathy in the current meta-analytic results. The phenomenon of such significant associations were discovered in type 1 and 2 diabetes.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Gastrointestinal symptoms in patients receiving imeglimin in combination with metformin: A post-hoc analysis of imeglimin clinical trial data.","authors":"Jumpei Ito, Katsuhiko Hagi, Kenji Kochi, Kohjiro Ueki, Hirotaka Watada, Kohei Kaku","doi":"10.1111/jdi.14396","DOIUrl":"https://doi.org/10.1111/jdi.14396","url":null,"abstract":"<p><strong>Introduction: </strong>An increased rate of gastrointestinal (GI) symptoms is reported in patients with type 2 diabetes receiving imeglimin plus metformin vs monotherapy or in combination with other antidiabetic drugs. This post-hoc analysis explored GI symptom incidence, risk factors for their occurrence, and the impact on therapeutic efficacy during imeglimin and metformin combination therapy.</p><p><strong>Materials and methods: </strong>Data were derived from the 52-week, open-label, phase 3 TIMES-2 trial in Japanese type 2 diabetes patients. Patients in the imeglimin plus metformin group were divided into two subgroups based on the presence of GI symptoms and diarrhea, with efficacy and safety assessed. Factors associated with their occurrence were explored using multivariate logistic regression analysis.</p><p><strong>Results: </strong>Of 64 patients analyzed, GI symptoms and diarrhea occurred in 40.6% (n = 26) and 17.2% (n = 11) of patients, respectively. Metformin dose and patient age did not significantly affect their incidence. Events occurred more frequently within the first 4 months of treatment. Approximately half resolved within 1 week, and most were mild. Type 2 diabetes duration <5 years was significantly associated with diarrhea (odds ratio = 5.979; P = 0.039). Significant hypoglycemic effects were observed from baseline, irrespective of GI symptoms or diarrhea. However, the degree of HbA1c improvement tended to be greater in patients with GI symptoms and diarrhea.</p><p><strong>Conclusions: </strong>Increased awareness regarding the potential for GI symptoms, including diarrhea, during imeglimin plus metformin combination therapy is warranted. This data will provide clinicians with useful information regarding symptomatic treatment when it occurs and help determine whether to continue treatment administration and is expected to improve patient adherence.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Urinary fatty acid-binding protein 4 is a promising biomarker for glomerular damage in patients with diabetes mellitus.","authors":"Marenao Tanaka, Tatsuya Sato, Tomohito Gohda, Nozomu Kamei, Maki Murakoshi, Erika Ishiwata, Keisuke Endo, Wataru Kawaharata, Hiroki Aida, Kei Nakata, Yukinori Akiyama, Mitsunobu Kubota, Michiyoshi Sanuki, Toru Suzuki, Yusuke Suzuki, Masato Furuhashi","doi":"10.1111/jdi.14388","DOIUrl":"https://doi.org/10.1111/jdi.14388","url":null,"abstract":"<p><strong>Aims/introduction: </strong>Fatty acid-binding protein (FABP) 4, which acts as an adipokine secreted by adipocytes, macrophages, and capillary endothelial cells, is expressed in injured glomerular cells. It has been reported that urinary (U-) FABP4 is associated with renal dysfunction and proteinuria in several glomerular kidney diseases. However, the clinical significance of U-FABP4 in diabetic kidney disease (DKD) remains undetermined.</p><p><strong>Materials and methods: </strong>Immunohistological analyses of FABP4 and FABP1 (liver-type FABP), an established biomarker for impaired proximal tubules, were performed in the kidneys of patients with DKD and nonobese diabetic mice (KK-Ta/Akita mice). The associations between U-FABP4 and U-FABP1 with kidney function and metabolic indices were also investigated in patients with type 1 diabetes (n = 57, mean age: 61 years) and patients with type 2 diabetes (n = 608, mean age: 65 years).</p><p><strong>Results: </strong>In both patients with diabetes and diabetic mice, FABP4 was expressed in injured glomeruli with increased markers of endoplasmic reticulum stress in addition to peritubular capillaries, whereas FABP1 was mainly expressed in proximal tubules. Levels of U-FABP4 and U-FABP1 were independently associated with each other, and both levels were independently associated with estimated glomerular filtration rate (eGFR) and urinary albumin-to-creatinine ratio (UACR) after adjustment of age, sex, type of diabetes, duration of diabetes, and systolic blood pressure in patients with diabetes.</p><p><strong>Conclusions: </strong>Urinary level of FABP4 derived from injured glomeruli with increased endoplasmic reticulum stress is independently associated with eGFR and UACR, suggesting a promising biomarker for glomerular damage in patients with diabetes.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Li Jiang, Jie Jian, Xulin Sai, Hongda Yu, Wanxian Liang, Xiai Wu
{"title":"Oxidative balance is associated with diabetic kidney disease and mortality in adults with diabetes mellitus: Insights from NHANES database and Mendelian randomization.","authors":"Li Jiang, Jie Jian, Xulin Sai, Hongda Yu, Wanxian Liang, Xiai Wu","doi":"10.1111/jdi.14390","DOIUrl":"https://doi.org/10.1111/jdi.14390","url":null,"abstract":"<p><strong>Objective: </strong>To explore and validate the association between the oxidative balance and prevalence of diabetic kidney disease (DKD) and mortality in patients with diabetes.</p><p><strong>Study design: </strong>A large and representative sample from the National Health and Nutrition Examination Survey (NHANES) from 2013 to 2016 was analyzed to study the potential association between Oxidative Balance Score (OBS) and prognosis of DKD in adult diabetic patients. Weighted multivariate logistic regression analysis was conducted to examine the relationship between OBS and DKD risk. Subgroup analysis, sensitivity analysis, and mediation effect analysis were conducted to explore the effect of the covariates and assess the robustness of the findings. Mendelian randomization (MR) was employed to evaluate the correlated relationship between mitochondrial reactive oxygen species (ROS) levels and DKD at the genetic level.</p><p><strong>Result: </strong>The highest OBS quartile showed the most significant negative correlation with DKD compared to the lowest OBS quartile (OR = 0.62, 95% CI 0.41-0.92, P = 0.017). Higher OBS was associated with a reduced risk of DKD (OR = 0.96; 95% CI = 0.93, 0.98; P < 0.001) and mortality (P = 0.021 by log-rank) in diabetic patients. This association remained robust even after excluding individual OBS components. Subgroup analysis revealed the interaction of metabolic syndrome on OBS was significant. Mediation analyses revealed that OBS's effect on DKD was independent of blood uric acid and cholesterol. Restricted cubic spline (RCS) analysis indicated a typical L-shaped relationship between OBS and DKD risk. The physical activity was identified as the core variable predicting DKD risk by two machine learning algorithms. MR showed a potential correlated relationship between ROS and microalbuminuria in DKD.</p><p><strong>Conclusions: </strong>The high level of oxidative balance score was negatively correlated with the risk of DKD and mortality in diabetic patients.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142890656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Japan Diabetes Complications Study: Revisiting one of the first large-scale clinical studies in East Asians with diabetes.","authors":"Hirohito Sone, Chika Horikawa, Sachiko Tanaka-Mizuno, Ryo Kawasaki, Kazuya Fujihara, Tatsumi Moriya, Atsushi Araki, Shiro Tanaka, Yasuo Akanuma","doi":"10.1111/jdi.14394","DOIUrl":"https://doi.org/10.1111/jdi.14394","url":null,"abstract":"<p><p>This review highlights the significance of the Japan Diabetes Complications Study (JDCS), one of the earliest large-scale studies of people with type 2 diabetes outside Europe and the United States, in understanding type 2 diabetes mellitus among East Asian populations, particularly in Japan. Historically, large-scale clinical studies on type 2 diabetes mellitus have predominantly focused on Western populations, despite East Asians comprising the largest proportion of diabetic patients globally. The JDCS, which was initiated in 1996, enrolled 2,033 Japanese type 2 diabetes mellitus patients. It aimed to evaluate the effects of intensive lifestyle interventions on diabetic complications. The study demonstrated that lifestyle-focused interventions significantly reduced the risk of stroke and other complications compared to conventional treatment. Key findings of its sub-analyses include the unique characteristics of Japanese patients with type 2 diabetes mellitus, such as their lower body mass index (BMI) compared to Western counterparts and a stronger association between even modest BMI increases and beta cell dysfunction. Additionally, the JDCS provided insights into the risk factors for nephropathy, retinopathy, and macrovascular complications, emphasizing the importance of controlling blood pressure, glycemia, and lifestyle factors. The study also explored the impact of diet, exercise, and mental health on diabetic outcomes, revealing the protective effects of physical activity and a balanced diet, while highlighting the risks associated with high salt intake and depression. A risk prediction model tailored to Japanese patients was also developed. Overall, this study made a significant contribution to the evidence-based management of type 2 diabetes mellitus in East Asia.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhengyi Long, Jingyun Du, Jie Hu, Yang Xiao, Can Hou
{"title":"The prognostic value of the systemic immunity-inflammation index for cardiovascular and all-cause mortality in cardiovascular disease patients with diabetes or prediabetes.","authors":"Zhengyi Long, Jingyun Du, Jie Hu, Yang Xiao, Can Hou","doi":"10.1111/jdi.14383","DOIUrl":"https://doi.org/10.1111/jdi.14383","url":null,"abstract":"<p><strong>Background: </strong>The relationship between the systemic immune-inflammatory index (SII) and the prognosis of cardiovascular disease (CVD) patients with diabetes or prediabetes remains uncertain. This study investigated the association between baseline SII and all-cause and cardiovascular mortality in American adults with CVD and diabetes or prediabetes.</p><p><strong>Methods: </strong>Our survey included 4,060 adults with cardiovascular disease and diabetes or prediabetes from the National Health and Nutrition Examination Survey (1998-2020). Using restricted cubic splines (RCS) based on Cox regression models and a two-piecewise Cox proportional hazards model for both sides of the inflection point, we elucidated the nonlinear relationship between baseline SII and mortality. Mediation analysis was used to explore the indirect impact of SII on mortality through eGFR.</p><p><strong>Results: </strong>In the median 129 months of follow-up, 620 people died from cardiovascular causes and 1,800 from all causes. In the CVD population with diabetes or prediabetes, SII showed a U-shaped relationship with all-cause mortality. The association between SII and CVD mortality was nonlinear and J-shaped. Stratified and interaction analysis confirmed the stability of the core results. Notably, eGFR partially mediated the association between SII and both all-cause and cardiovascular mortality by 9.4% and 6.9%, respectively.</p><p><strong>Conclusions: </strong>SII revealed a U-shaped relationship with all-cause mortality (inflection point: lnSII = 6) and a J-shaped association with CVD mortality (inflection point: lnSII = 5.73) in CVD patients with diabetes or prediabetes among American patients. Thus, assessing the SII index may offer valuable insights into risk assessment and prognosis in patients with CVD who are diabetic or prediabetic.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Association of constipation with all-cause mortality among individuals with type 2 diabetes: A retrospective cohort study.","authors":"Xianhua Li, Haibin Wen, Jing Ke, Dong Zhao","doi":"10.1111/jdi.14375","DOIUrl":"https://doi.org/10.1111/jdi.14375","url":null,"abstract":"<p><strong>Background: </strong>Constipation is a common complication in type 2 diabetes mellitus (T2DM), yet its impact on mortality remains unclear. This study aimed to investigate the association between constipation and all-cause mortality in patients with T2DM.</p><p><strong>Methods: </strong>We conducted a retrospective cohort study using data from the National Health and Nutrition Examination Survey (NHANES) 2005-2010. Mortality outcomes were ascertained through linkage to National Death Index records until December 31, 2019. The association between constipation and all-cause mortality was assessed using weighted Cox proportional hazards regression models. Kaplan-Meier curves were then employed to visualize survival probabilities. Effect modification was explored through stratified analyses and interaction tests.</p><p><strong>Results: </strong>Of 1,339 participants with T2DM, 146 (10.90%) reported constipation. During a median follow-up of 10.75 years, 411 deaths occurred (57 in the constipation group, 354 in the non-constipation group). Fully adjusted weighted Cox regression analysis revealed that constipation was associated with increased all-cause mortality (HR 1.50, 95% CI 1.01-2.22, P = 0.04). Kaplan-Meier analysis demonstrated a significantly lower survival probability in patients with constipation (log-rank P < 0.05). Stratified analyses and interaction tests corroborated these findings across various subgroups.</p><p><strong>Conclusions: </strong>Constipation is associated with elevated all-cause mortality risk in T2DM patients. These findings suggest that constipation management may be an important consideration in improving long-term outcomes for individuals with T2DM.</p>","PeriodicalId":190,"journal":{"name":"Journal of Diabetes Investigation","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}