Descriptive Epidemiology of Thyroid Carcinoma in Carinthia, Austria: 1984–2001. Histopathologic Features and Tumor Classification of 734 Cases Under Elevated General Iodination of Table Salt Since 1990: Population-Based Age-Stratified Analysis on Thyroid Carcinoma Incidence

Thyroid ◽  
2004 ◽  
Vol 14 (4) ◽  
pp. 277-286 ◽  
Author(s):  
I. Gomez Segovia ◽  
H.J. Gallowitsch ◽  
E. Kresnik ◽  
G. Kumnig ◽  
I. Igerc ◽  
...  
Keyword(s):  
Thyroid Carcinoma ◽  
Population Based ◽  
Tumor Classification ◽  
Descriptive Epidemiology ◽  
Table Salt ◽  
Stratified Analysis ◽  
Histopathologic Features

Classification of papillary thyroid carcinoma histological images based on deep learning

2021 ◽  
pp. 1-11
Author(s):  
Yaning Liu ◽  
Lin Han ◽  
Hexiang Wang ◽  
Bo Yin
Keyword(s):  
Neural Network ◽  
Differential Diagnosis ◽  
Deep Learning ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Image Features ◽  
Papillary Thyroid ◽  
Histological Image ◽  
Histological Images

Papillary thyroid carcinoma (PTC) is a common carcinoma in thyroid. As many benign thyroid nodules have the papillary structure which could easily be confused with PTC in morphology. Thus, pathologists have to take a lot of time on differential diagnosis of PTC besides personal diagnostic experience and there is no doubt that it is subjective and difficult to obtain consistency among observers. To address this issue, we applied deep learning to the differential diagnosis of PTC and proposed a histological image classification method for PTC based on the Inception Residual convolutional neural network (IRCNN) and support vector machine (SVM). First, in order to expand the dataset and solve the problem of histological image color inconsistency, a pre-processing module was constructed that included color transfer and mirror transform. Then, to alleviate overfitting of the deep learning model, we optimized the convolution neural network by combining Inception Network and Residual Network to extract image features. Finally, the SVM was trained via image features extracted by IRCNN to perform the classification task. Experimental results show effectiveness of the proposed method in the classification of PTC histological images.

scholarly journals Phenotypic Classification of preterm Birth Among Multiparous Women: A Population-Based Cohort Study

2019 ◽  
Vol 41 (10) ◽  
pp. 1433-1443.e12
Author(s):  
Siavash Maghsoudlou ◽  
Joseph Beyene ◽  
Zhijie Michael Yu ◽  
Sarah D. McDonald
Keyword(s):  
Cohort Study ◽  
Preterm Birth ◽  
Population Based ◽  
Multiparous Women ◽  
Phenotypic Classification

Classification of non-respondents in a population-based tobacco cessation contest—"Quit and Win"

2000 ◽  
Vol 28 (1) ◽  
pp. 77-78
Author(s):  
Per Tillgren ◽  
Tuula Ainetdin ◽  
Marie-Louise Stjerna
Keyword(s):  
Tobacco Cessation ◽  
Population Based

Prevalence and Incidence of Heart Failure Among Urban Patients in China: A National Population-Based Analysis

2021 ◽  
Author(s):  
Hua Wang ◽  
Ke Chai ◽  
Minghui Du ◽  
Shengfeng Wang ◽  
Jian-Ping Cai ◽  
...  
Keyword(s):  
Heart Failure ◽  
Large Scale ◽  
International Classification Of Diseases ◽  
Population Based ◽  
Unique Identifier ◽  
Classification Of Diseases ◽  
Per Capita ◽  
Mean Cost ◽  
Incident Cases

Background: Large-scale and population-based studies of heart failure (HF) incidence and prevalence are scarce in China. The study sought to estimate the prevalence, incidence, and cost of HF in China. Methods: We conducted a population-based study using records of 50.0 million individuals ≥25 years old from the national urban employee basic medical insurance from 6 provinces in China in 2017. Incident cases were individuals with a diagnosis of HF (International Classification of Diseases code, and text of diagnosis) in 2017 with a 4-year disease-free period (2013–2016). We calculated standardized rates by applying age standardization to the 2010 Chinese census population. Results: The age-standardized prevalence and incidence were 1.10% (1.10% among men and women) and 275 per 100 000 person-years (287 among men and 261 among women), respectively, accounting for 12.1 million patients with HF and 3.0 million patients with incident HF ≥25 years old. Both prevalence and incidence increased with increasing age (0.57%, 3.86%, and 7.55% for prevalence and 158, 892, and 1655 per 100 000 person-years for incidence among persons who were 25–64, 65–79, and ≥80 years of age, respectively). The inpatient mean cost per-capita was $4406.8 and the proportion with ≥3 hospitalizations among those hospitalized was 40.5%. The outpatient mean cost per-capita was $892.3. Conclusions: HF has placed a considerable burden on health systems in China, and strategies aimed at the prevention and treatment of HF are needed. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: ChiCTR2000029094.

Readmission after Adult Uvulopalatopharyngoplasty: A Population-Based Inpatient Cohort Study in Taiwan

2018 ◽  
Vol 160 (3) ◽  
pp. 559-566 ◽  
Author(s):  
Ying-Shuo Hsu ◽  
Wei-Chung Hsu ◽  
Jenq-Yuh Ko ◽  
Te-Huei Yeh ◽  
Chia-Hsuan Lee ◽  
...  
Keyword(s):  
Odds Ratio ◽  
International Classification Of Diseases ◽  
Population Based ◽  
Factors Associated ◽  
Risk Of Bleeding ◽  
Increased Risk ◽  
Classification Of Diseases ◽  
Insurance Database ◽  
Population Based Survey

Objective To investigate readmissions among adult inpatients who underwent uvulopalatopharyngoplasty (UPPP) in Taiwan. Design Population-based survey. Setting Retrospective study with the National Health Insurance Database. Methods All cases of inpatient adult UPPP (age >20 years) from 1997 to 2012 were identified through International Classification of Diseases, Ninth Revision, Clinical Modification. Factors associated with readmission within 30 days after surgery were analyzed. Results A total of 38,839 adults with UPPP were identified (mean age, 39.3 years; men, 73.7%). The incidence of UPPP was 14.6 per 100 000 adults, which increased from 1997 to 2012 (6.7 to 16.7 per 100,000, Ptrend < .001). The rates of readmission for any reason, readmission for bleeding, reoperation for bleeding, and 30-day mortality were 4.2%, 1.7%, 1.0%, and 0.14%, respectively. Young age increased the risk of reoperation for bleeding, and old age increased the risk of readmission for any reason and mortality. Men had an increased risk of readmission and reoperation. Hypertension was associated with an increased risk of readmission for any reason (odds ratio [OR], 1.29; 95% CI, 1.10-1.51), bleeding-related readmission (OR, 1.89; 95% CI, 1.52-2.36), and reoperation (OR, 2.47; 95% CI, 1.84-3.30). Concurrent hypopharyngeal surgery was associated with an increased risk of readmission for any reason (OR, 1.34; 95% CI, 1.07-1.66) and bleeding-related readmission (OR, 1.69; 95% CI, 1.25-2.27). Finally, the use of steroids was associated with an increased risk of bleeding-related readmission and reoperation. Conclusions The incidence of adult UPPP increased from 1997 to 2012 in Taiwan. Age, sex, comorbidity, concurrent hypopharyngeal surgery, and drug administration were associated with readmission after inpatient UPPP.

scholarly journals Non-Hepatic Alkaline Phosphatase, hs-CRP and Progression of Vertebral Fracture in Patients with Rheumatoid Arthritis: A Population-Based Longitudinal Study

2018 ◽  
Vol 7 (11) ◽  
pp. 439 ◽  
Author(s):  
Jih-Chen Yeh ◽  
Chang-Chin Wu ◽  
Cheuk-Sing Choy ◽  
Shu-Wei Chang ◽  
Jian-Chiun Liou ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Alkaline Phosphatase ◽  
Cox Regression ◽  
High Sensitivity ◽  
Population Based ◽  
Reactive Protein ◽  
Prognostic Assessment ◽  
Product Term ◽  
Hs Crp ◽  
Stratified Analysis

Background: Interactions and early warning effects of non-hepatic alkaline phosphatase (NHALP) and high-sensitivity C-reactive protein (hs-CRP) on the progression of vertebral fractures (VFs) in patients with rheumatoid arthritis (RA) remain unclear. We aim to explore whether serum concentrations of NHALP and hs-CRP could serve as a promising dual biomarker for prognostic assessment of VF progression. Methods: Unadjusted and adjusted hazard ratios (aHRs) of VF progression were calculated for different categories of serum NHALP and hs-CRP using the Cox regression model in RA patients. The modification effect between serum NHALP and hs-CRP on VF progression was determined using an interaction product term. Results: During 4489 person-years of follow-up, higher NHALP (>125 U/L) and hs-CRP (>3.0 mg/L) were robustly associated with incremental risks of VF progression in RA patients (aHR: 2.2 (95% confidence intervals (CIs): 1.2–3.9) and 2.0 (95% CI: 1.3–3.3) compared to the lowest HR category, respectively). The interaction between NHALP and hs-CRP on VF progression was statistically significant (p < 0.05). In the stratified analysis, patients with combined highest NHALP and hs-CRP had the greatest risk of VF progression (aHR: 4.9 (95% CI: 2.5–9.6)) compared to the lowest HR group (NHALP < 90 U/L and hs-CRP < 1 mg/L). Conclusions: In light of underdiagnoses of VFs and misleading diagnosis by single test, NHALP and hs-CRP could serve as compensatory biomarkers to predict subclinical VF progression in RA patients.

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