scholarly journals The Association Between Cholecystectomy and the Risk for Fracture: A Nationwide Population-Based Cohort Study in Korea

2021 ◽  
Vol 12 ◽  
Author(s):  
Eun Ji Lee ◽  
Cheol Min Shin ◽  
Dong Ho Lee ◽  
Kyungdo Han ◽  
Sang Hyun Park ◽  
...  
Keyword(s):  
Hip Fractures ◽  
Vertebral Fractures ◽  
Cox Regression ◽  
Population Based ◽  
Incidence Rates ◽  
Control Group ◽  
Age Group ◽  
Cox Regression Analysis ◽  
Risk Of Fracture ◽  
Increased Risk

ObjectivesTo evaluate the risk of fracture in individuals with a history of cholecystectomy in Korean population.MethodsIndividuals (n = 143,667) aged ≥ 40 y who underwent cholecystectomy between 2010 and 2015 and the controls (n = 255,522), matched by age and sex, were identified from the database of the Korean National Health Insurance Services. The adjusted hazard ratio (aHR) and 95% confidence interval (CI) of fracture were estimated following cholecystectomy, and a Cox regression analysis was performed.ResultsThe incidence rates of all fractures, vertebral, and hip fractures were 14.689, 6.483 and 1.228 cases per 1000 person-years respectively in the cholecystectomy group, whereas they were 13.862, 5.976, and 1.019 cases per 1000 person-years respectively in the control group. After adjustment for age, sex, income, place of residence, diabetes mellitus, hypertension, dyslipidemia, smoking, alcohol drinking, exercise, and body mass index, patients who underwent cholecystectomy showed an increased risk of all fractures, vertebral fractures, and hip fractures (aHR [95% CI]: 1.095 [1.059-1.132], 1.134 [1.078-1.193], and 1.283 [1.139-1.444] for all fractures, vertebral fractures, and hip fractures, respectively). The risk of vertebral fractures following cholecystectomy was more prominent in the young age group (40 to 49 y) than in the old age group (≥ 65 y) (1.366 [1.082-1.724] vs. 1.132 [1.063-1.206], respectively). However, the incidence of hip fractures following cholecystectomy was not affected by age.ConclusionIndividuals who underwent cholecystectomy have an increased risk of fracture. In the younger population, the risk of vertebral fractures may be further increased following cholecystectomy.

Increased risk of osteoporotic fractures in patients with systemic sclerosis: a nationwide population-based study

2014 ◽  
Vol 74 (7) ◽  
pp. 1347-1352 ◽  
Author(s):  
Chien-Chih Lai ◽  
Shu-Hung Wang ◽  
Wei-Sheng Chen ◽  
Chia-Jen Liu ◽  
Tzeng-Ji Chen ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Incidence Rate ◽  
Hip Fractures ◽  
Vertebral Fractures ◽  
Cox Regression ◽  
Osteoporotic Fractures ◽  
Population Based ◽  
High Dose ◽  
Increased Risk ◽  
Rate Ratios

ObjectivesTo identify the incidence rate (IR) and risk factors of osteoporotic fractures (OFs) among systemic sclerosis (SSc) patients.MethodsA cohort study was conducted using the Taiwan National Health Insurance database. Patients with SSc and respective age- and gender-matched controls without SSc were enrolled. The primary endpoint was the first occurrence of OF. The Cox proportional hazard model was used to investigate the risk factor of OFs in the SSc cohort.ResultsAmong 1712 SSc patients (77.8% female, mean age 50.3 years) with a median follow-up of 5.2 years, 54 patients developed vertebral fractures, 17 patients developed hip fractures, and 7 patients developed radius fractures (IR: 6.99, 2.18 and 0.90 per 1000 person-years, respectively). Compared with the controls, the incidence rate ratios (IRRs) (95% CIs) among SSc patients were 1.78 (1.30 to 2.39, p<0.001) for vertebral fractures and 1.89 (1.05 to 3.22, p=0.026) for hip fractures. The IRRs for overall OFs were 1.74 (1.32 to 2.27, p<0.001) for women and 1.06 (0.33 to 2.66, p=0.856) for men. The SSc patients experienced hip fractures at a younger age (67.2 vs 75.2 years, p=0.005), and had a higher 1-year mortality rate (13% vs 3%, p=0.006) of vertebral fractures than did the controls. Multivariable Cox regression analyses indicated that older age, being female, using daily prednisolone equivalent to >7.5 mg, and bowel dysmotility treated with intravenous metoclopramide are associated with OF.ConclusionsSSc patients had a high IR of vertebral and hip fractures, especially those who were female, older, used a high dose of corticosteroid or experienced bowel dysmotility.

scholarly journals Inflammatory markers and risk of cardiovascular mortality in relation to diabetes status in the HUNT study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lena Løfblad ◽  
Gunhild Garmo Hov ◽  
Arne Åsberg ◽  
Vibeke Videm
Keyword(s):  
Cardiovascular Mortality ◽  
Inflammatory Markers ◽  
Cox Regression ◽  
Population Based ◽  
Control Group ◽  
Bottom Quartile ◽  
Diabetes Status ◽  
Increased Risk ◽  
General Populations ◽  
Log Linear

AbstractInflammatory markers have been associated with increased risk of cardiovascular mortality in general populations. We assessed whether these associations differ by diabetes status. From a population-based cohort study (n = 62,237) we included all participants with diabetes (n = 1753) and a control group without diabetes (n = 1818). Cox regression models were used to estimate hazard ratios (HRs) with 95% confidence intervals (CI) for possible associations with cardiovascular mortality of 4 different inflammatory markers; C-reactive protein (CRP), calprotectin, neopterin and lactoferrin. During a median follow-up of 13.9 years, 728 (20.4%) died from cardiovascular disease (CVD). After adjustment for age, sex and diabetes, the associations of all inflammatory markers with risk of cardiovascular mortality were log-linear (all P ≤ 0.017 for trend) and did not differ according to diabetes status (all P ≥ 0.53 for interaction). After further adjustments for established risk factors, only CRP remained independently associated with cardiovascular mortality. HRs were 1.22 (1.12–1.32) per standard deviation higher loge CRP concentration and 1.91 (1.50–2.43) when comparing individuals in the top versus bottom quartile. The associations of CRP, calprotectin, lactoferrin and neopterin with cardiovascular mortality did not differ by diabetes, suggesting that any potential prognostic value of these markers is independent of diabetes status.

scholarly journals Do Children With Constipation Have Increased Risk of Asthma? Real-World Data From a Nationwide Population-Based Cohort Study

2021 ◽  
Vol 9 ◽  
Author(s):  
Yen-Chu Huang ◽  
Meng-Che Wu ◽  
Yu-Hsun Wang ◽  
James Cheng-Chung Wei
Keyword(s):  
Cohort Study ◽  
Cox Regression ◽  
Population Based ◽  
Hazard Ratio ◽  
Adjusted Hazard Ratio ◽  
Research Database ◽  
Real World Data ◽  
Childhood Disorders ◽  
Cox Regression Analysis ◽  
Increased Risk

Background: Asthma is one of the most burdensome childhood disorders. Growing evidence disclose intestinal dysbiosis may contribute to asthma via the gut-lung axis. Constipation can lead to alteration of the gut microbiota. The clinical impact of constipation on asthma has not been researched. Therefore, we aim to assess whether pediatric constipation influence the risk of developing asthma by a nationwide population-based cohort study.Methods: We analyzed 10,363 constipated patients and 10,363 individuals without constipation between 1999 and 2013 from Taiwan's National Health Insurance Research Database. Analysis of propensity score was utilized to match age, sex, comorbidities, and medications at a ratio of 1:1. In addition, multiple Cox regression analysis was performed to evaluate the adjusted hazard ratio of asthma. Furthermore, sensitivity tests and a stratified analysis were performed.Results: After adjustment for age, sex, comorbidities, and medications, constipated patients had a 2.36-fold greater risk of asthma compared to those without constipation [adjusted hazard ratio (aHR): 2.36, 95% C.I. 2.04–2.73, p &lt; 0.001]. Furthermore, the severity of constipation is associated with an increased risk of asthma; the adjusted hazard ratio was 2.25, 2.85, and 3.44 within &lt; 3, 3–12, and ≥12 times of laxatives prescription within 1 year, respectively (p &lt; 0.001).Conclusion: Constipation was correlated with a significantly increased risk of asthma. Pediatricians should be aware of the possibility of asthma in constipated patients. Further research is warranted to investigate the possible pathological mechanisms of this association.

scholarly journals Role of Disease Modifying Treatment in the Risk of Alloimmunization in Transfused Patients with Myelodysplastic Syndromes: A Population-Based Study

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 4253-4253
Author(s):  
Hanne Rozema ◽  
Robby Kibbelaar ◽  
Nic Veeger ◽  
Mels Hoogendoorn ◽  
Eric van Roon
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Cox Regression ◽  
Population Based ◽  
Incidence Rates ◽  
Blood Products ◽  
Cox Regression Analysis ◽  
In The Beginning ◽  
Observation Period

The majority of patients with myelodysplastic syndromes (MDS) require regular red blood cell (RBC) transfusions. Alloimmunization (AI) against blood products is an adverse event, causing time-consuming RBC compatibility testing. The reported incidence of AI in MDS patients varies greatly. Even though different studies on AI in MDS patients have been performed, there are still knowledge gaps. Current literature has not yet fully identified the risk factors and dynamics of AI in individual patients, nor has the influence of disease modifying treatment (DMT) been explored. Therefore, we performed this study to evaluate the effect of DMT on AI. An observational, population-based study, using the HemoBase registry, was performed including all newly diagnosed MDS patients between 2005 and 2017 in Friesland, a province of the Netherlands. All available information about treatment and transfusions, including transfusion dates, types, and treatment regimens, was collected from the electronic health records and laboratory systems. Follow-up occurred through March 2019. For our patient cohort, blood products were matched for AB0 and RhD, and transfused per the 'type and screen' policy (i.e. electronic matching of blood group phenotype between patient and donor). After a positive antibody screening, antibody identification and Rh/K phenotyping was performed and subsequent blood products were (cross)matched accordingly. The observation period was counted from first transfusion until last transfusion or first AI event. Univariate analyses and cumulative frequency distributions were performed to study possible risk factors and dynamics of AI. DMT was defined as hypomethylating agents, lenalidomide, chemotherapy and monoclonal antibodies. The effect of DMT as a temporary risk period on the risk of AI was estimated with incidence rates, relative risks (RR) and hazard ratios (HR) using a cox regression analysis. Follow-up was limited to 24 months for the cox regression analysis to avoid possible bias by survival differences. Statistical analyses were performed using IBM SPSS 24 and SAS 9.4. Out of 292 MDS patients, 236 patients received transfusions and were included in this study, covering 463 years of follow-up. AI occurred in 24 patients (10%). AI occurred mostly in the beginning of the observation period: Eighteen patients (75%) were alloimmunized after receiving 20 units of RBCs, whereas 22 patients (92%) showed AI after 45 units of RBCs (Figure 1). We found no significant risk factors for AI in MDS patients at baseline. DMT was given to 67 patients (28%) during the observation period. Patients on DMT received more RBC transfusions than patients that did not receive DMT (median of 33 (range: 3-154) and 11 (range: 0-322) RBC units respectively, p<0,001). Four AI events (6%) occurred in patients on DMT and 20 AI events (12%) occurred in patients not on DMT. Cox regression analysis of the first 24 months of follow-up showed an HR of 0.30 (95% CI: 0.07-1.31; p=0.11). The incidence rates per 100 person-years were 3.19 and 5.92 respectively. The corresponding RR was 0.54 (95% CI: 0.16-1.48; p=0.26). Based on our results, we conclude that the incidence of AI in an unselected, real world MDS population receiving RBC transfusions is 10% and predominantly occurred in the beginning of follow-up. Risk factors for AI at baseline could not be identified. Our data showed that patients on DMT received significantly more RBC transfusions but were less susceptible to AI. Therefore, extensive matching of blood products may not be necessary for patients on DMT. Larger studies are needed to confirm the protective effect of DMT on AI. Disclosures Rozema: Celgene: Other: Financial support for visiting MDS Foundation conference.

Increased risk of cancer in patients with retinal vein occlusion: a 12-year nationwide cohort study

2020 ◽  
pp. bjophthalmol-2020-316947
Author(s):  
Min Seok Kim ◽  
Joon Hee Cho ◽  
Seong Jun Byun ◽  
Chang-Mo Oh ◽  
Kyu Hyung Park ◽  
...  
Keyword(s):  
Retinal Vein Occlusion ◽  
Cox Regression ◽  
Subsequent Development ◽  
Population Based ◽  
Control Group ◽  
Time Varying ◽  
Vein Occlusion ◽  
Increased Risk ◽  
Risk Of Cancer ◽  
Subsequent Cancer

AimsTo investigate the association between incident retinal vein occlusion (RVO) and the subsequent development of cancer.MethodsIn this nationwide population-based retrospective study using 2002–2013 National Health Insurance Service database which covers the entire South Korean population, 186 701 incident RVO patients and their 1:1 propensity-score matched controls were included. We defined the fixed cohort from January 1st, 2004 to December 31st, 2013; the cohort included patients who suffered incident RVO after entering the cohort and their matched controls, and excluded patients having any cancer history before entering the cohort. The association of RVO and cancer was assessed by time-varying covariate Cox regression models; Model 1 included RVO as a time-varying covariate, Model 2 included Model 1 plus demographic information and Model 3 included Model 2 and comorbidities.ResultsRVO was associated with an increased risk of subsequent cancer (HR=1.29; 95% CI, 1.26–1.31 in Model 1), which was consistent in Models 2 and 3. The incidence rate of overall cancer during the study period was 25.55 (95% CI, 25.19–25.91) per 1000 person-years in the RVO group and 18.62 (95% CI, 18.46–18.79) per 1000 person-years in the control group. In the subgroup analysis, haematological malignancies showed the highest association with RVO (HR=1.65; 95% CI, 1.49–1.83).ConclusionPatients with RVO have an increased risk of subsequent cancer development even after adjusting for demographic factors and comorbidities. Further study is warranted to elucidate these associations to provide proper recommendations for RVO patients regarding the cancer screening.

P0211GLOMERULAR HYPERFILTRATION AND CANCER: A NATIONWIDE POPULATION-BASED STUDY

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Yaerim Kim ◽  
Jeongsoo Yoon ◽  
Jin Hyuk Paek ◽  
Woo Yeong Park ◽  
Kyubok Jin ◽  
...  
Keyword(s):  
National Health ◽  
Malignant Disease ◽  
Cox Regression ◽  
Asian Population ◽  
Population Based ◽  
Glomerular Hyperfiltration ◽  
Outcome Variable ◽  
Cox Regression Analysis ◽  
Increased Risk ◽  
The Impact

Abstract Background and Aims Glomerular hyperfiltration is associated with all-cause mortality. Herein, we evaluated the association between glomerular hyperfiltration and the development of malignant disease, the most common cause of death, in an Asian population. Method We retrospectively reviewed the National Health Insurance Service database of Korea for people who received national health screenings from 2012 to 2013. Glomerular hyperfiltration was defined as the 95th percentile and greater after adjusting for age and sex. We performed a multivariate Cox regression analysis using glomerular hyperfiltration at the first health screening as the exposure variable and cancer development as the outcome variable to evaluate the impact of glomerular hyperfiltration on the development of malignant disease. Results A total of 1,953,123 examinations who followed-up for 4.9 years were included in this study. Among the 8 different site-specific malignant disease categories, digestive organs and female genital organs showed a significant associations between glomerular hyperfiltration and malignancy. The population with glomerular hyperfiltration showed an increased risk for stomach cancer (adjusted hazard ratio [aHR], 1.27), colorectal cancer (aHR, 1.23), and liver or intrahepatic malignancy (aHR, 1.40). In addition, the risk for uterine and ovarian cancer was significantly increased in the population with glomerular hyperfiltration (aHR, 1.36). Conclusion Glomerular hyperfiltration was associated with an increased risk for the development of malignant diseases in specific organs, such as the stomach, colorectum, uterus, and ovary. Glomerular hyperfiltration needs to be considered a significant sign of the need to evaluate the possibility of hidden adverse health conditions, including malignancies.

Headache as a risk factor for dementia: A prospective population-based study

Cephalalgia ◽  
2013 ◽  
Vol 34 (5) ◽  
pp. 327-335 ◽  
Author(s):  
Knut Hagen ◽  
Eystein Stordal ◽  
Mattias Linde ◽  
Timothy J Steiner ◽  
John-Anker Zwart ◽  
...  
Keyword(s):  
Risk Factor ◽  
Cohort Study ◽  
Cox Regression ◽  
Subsequent Development ◽  
Population Based ◽  
Health Study ◽  
Cox Regression Analysis ◽  
Hazard Ratios ◽  
Increased Risk

Background Headache has not been established as a risk factor for dementia. The aim of this study was to determine whether any headache was associated with subsequent development of vascular dementia (VaD), Alzheimer’s disease (AD) or other types of dementia. Methods This prospective population-based cohort study used baseline data from the Nord-Trøndelag Health Study (HUNT 2) performed during 1995–1997 and, from the same Norwegian county, a register of cases diagnosed with dementia during 1997–2010. Participants aged ≥20 years who responded to headache questions in HUNT 2 were categorized (headache free; with any headache; with migraine; with nonmigrainous headache). Hazard ratios (HRs) for later inclusion in the dementia register were estimated using Cox regression analysis. Results Of 51,383 participants providing headache data in HUNT 2, 378 appeared in the dementia register during the follow-up period. Compared to those who were headache free, participants with any headache had increased risk of VaD ( n = 63) (multivariate-adjusted HR = 2.3, 95% CI 1.4–3.8, p = 0.002) and of mixed dementia (VaD and AD ( n = 52)) (adjusted HR = 2.0, 95% CI 1.1–3.5, p = 0.018). There was no association between any headache and later development of AD ( n = 180). Conclusion In this prospective population-based cohort study, any headache was a risk factor for development of VaD.

Bipolar disorder and risk of Parkinson disease

Neurology ◽  
2019 ◽  
Vol 92 (24) ◽  
pp. e2735-e2742 ◽  
Author(s):  
Mao-Hsuan Huang ◽  
Chih-Ming Cheng ◽  
Kai-Lin Huang ◽  
Ju-Wei Hsu ◽  
Ya-Mei Bai ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Parkinson Disease ◽  
Cox Regression ◽  
Sensitivity Analyses ◽  
Control Group ◽  
Research Database ◽  
Cox Regression Analysis ◽  
Increased Risk ◽  
Depressive Episodes

ObjectiveTo evaluate the risk of Parkinson disease (PD) among patients with bipolar disorder (BD).MethodsUsing the Taiwan National Health Insurance Research Database, we examined 56,340 patients with BD and 225,360 age- and sex-matched controls between 2001 and 2009 and followed them to the end of 2011. Individuals who developed PD during the follow-up period were identified.ResultsPatients with BD had a higher incidence of PD (0.7% vs 0.1%, p < 0.001) during the follow-up period than the controls. A Cox regression analysis with adjustments for demographic data and medical comorbid conditions revealed that patients with BD were more likely to develop PD (hazard ratio [HR] 6.78, 95% confidence interval [CI] 5.74–8.02) than the control group. Sensitivity analyses after exclusion of the first year (HR 5.82, 95% CI 4.89–6.93) or first 3 years (HR 4.42; 95% CI 3.63–5.37) of observation showed consistent findings. Moreover, a high frequency of psychiatric admission for manic/mixed and depressive episodes was associated with an increased risk of developing PD.ConclusionPatients with BD had a higher incidence of PD during the follow-up period than the control group. Manic/mixed and depressive episodes were associated with an elevated likelihood of developing PD. Further studies are necessary to investigate the underlying pathophysiology between BD and PD.

Intensification of Mercaptopurine/Methotrexate Maintenance Chemotherapy May Increase the Risk of Relapse for Some Children With Acute Lymphoblastic Leukemia

2003 ◽  
Vol 21 (7) ◽  
pp. 1332-1339 ◽  
Author(s):  
Kjeld Schmiegelow ◽  
Olle Björk ◽  
Anders Glomstein ◽  
Göran Gustafsson ◽  
Niels Keiding ◽  
...  
Keyword(s):  
Acute Lymphoblastic Leukemia ◽  
Maintenance Therapy ◽  
Cox Regression ◽  
Lymphoblastic Leukemia ◽  
Tpmt Activity ◽  
Control Group ◽  
Cox Regression Analysis ◽  
Cell Counts ◽  
Increased Risk ◽  
Risk Of Relapse

Purpose: Thioguanine nucleotides (TGNs) mediate the cytotoxicity of mercaptopurine (MP). Methylated MP metabolites (formed by thiopurine methyltransferase [TPMT]) and methotrexate (MTX) polyglutamates can inhibit de novo purine synthesis. We explored whether dose adjustment of MP and MTX by erythrocyte (E) levels of TGN and MTX (including polyglutamates) could improve outcome in childhood acute lymphoblastic leukemia (ALL). Patients and Methods: A total of 538 children with ALL were randomly assigned to have their oral MP/MTX maintenance therapy adjusted by white cell counts (WBC), E-TGN, and E-MTX (pharmacology group), or by WBC only (control group). Results: After a median follow-up of 7.8 years, 79 patients had relapsed. Cox regression analysis showed an increased risk of relapse for boys (P = .00003), high WBC at diagnosis (P = .03), pharmacology arm (6.6 times increased relapse hazard for girls), high TPMT activity (P = .002), and high average neutrophil counts during maintenance therapy (P = .0009), with a significant interaction between sex and randomization group (P = .0007). For girls, the relapse risk was 5% in the control group and 19% in the pharmacology group (P = .001) because of an increased relapse hazard during the first year after cessation of therapy. TPMT activity was the most significant predictor of relapses among girls in the pharmacology arm (P < .0001). Overall, the TPMT activity was higher for patients who relapsed after cessation of therapy compared with those who stayed in remission (girls 19.5 v 17.4 U/mL, P = .03; boys 19.3 v 18.0 U/mL, P = .04). Conclusion: Adding pharmacologically guided treatment intensification to dose adjustments by blood counts may not be warranted for girls, whereas new approaches to optimize maintenance therapy are needed for boys.

scholarly journals Obesity-Independent Association between Glycemic Status and the Risk of Hematologic Malignancy: A Nationwide Population-Based Longitudinal Cohort Study

Cancers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 4760
Author(s):  
Jihun Kang ◽  
Sang-Man Jin ◽  
Seok Jin Kim ◽  
Dahye Kim ◽  
Kyungdo Han ◽  
...  
Keyword(s):  
Hodgkin’S Lymphoma ◽  
Cox Regression ◽  
Hematologic Malignancy ◽  
Hematologic Malignancies ◽  
Population Based ◽  
Diabetes Duration ◽  
Hodgkin's Lymphoma ◽  
Glycemic Status ◽  
Cox Regression Analysis ◽  
Increased Risk

There have been conflicting results regarding the association between diabetes and the risk of hematologic malignancies, and its interaction with obesity is unknown. This study determined the risk of hematologic malignancies according to the glycemic status in a population-based study involving health screening 9,774,625 participants. The baseline glycemic status of the participants was categorized into no diabetes, impaired fasting glucose (IFG), newly detected diabetes, diabetes duration <5 years, and diabetes duration ≥5 year groups. The risks of overall and specific hematologic malignancies were estimated using a Cox regression analysis. During a median follow up of 7.3 years, 14,733 hematologic malignancies developed. The adjusted hazard ratio (aHR) for the risk of all the hematologic malignancies was 0.99 (95% confidence interval (CI) 0.95–1.02) for IFG, 0.99 (95% CI 0.91–1.08) for newly detected diabetes, 1.03 (95% CI 0.96–1.11) for diabetes duration <5 years, and 1.11 (95% CI 1.03, 1.20) for diabetes duration ≥5 year groups. The association was independent from obesity. The risk of non-Hodgkin’s lymphoma (NHL) increased according to the progression of dysglycemia towards a longer diabetes duration, while Hodgkin’s lymphoma did not. This study in Korea demonstrated diabetes to be associated with an increased risk of hematologic malignancies independent of obesity. The NHL risk increased with the diabetes duration.

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