Showing 2,201 - 2,220 results of 18,849 for search 'sample random sampling', query time: 0.20s Refine Results
  1. 2201

    Genetic insights into blood urea nitrogen as a risk factor for coronary artery disease: a Mendelian randomization study in East Asians by Lijuan Shen, Qianxin Zhang, Zhouyang Zhu, Zhouqing Huang

    Published 2025-12-01
    “…Our study aimed to assess the causal effect of BUN levels on several CVDs using the two-sample Mendelian randomization (MR) method. This is the first MR study examining causal relationships between BUN and multiple cardiovascular diseases.Methods Using data from genome-wide association studies (GWAS) of East Asians, we identified single nucleotide polymorphisms (SNPs) associated with BUN levels as instrumental variables. …”
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  2. 2202

    Co-administration of AYUSH 64 as an adjunct to standard of care in mild and moderate COVID-19: A randomized, controlled, multicentric clinical trial. by Arvind Chopra, Girish Tillu, Kuldeep Chuadhary, Govind Reddy, Alok Srivastava, Muffazal Lakdawala, Dilip Gode, Himanshu Reddy, Sanjay Tamboli, Manjit Saluja, Sanjeev Sarmukaddam, Manohar Gundeti, Ashwini Kumar Raut, B C S Rao, Babita Yadav, Narayanam Srikanth, Bhushan Patwardhan

    Published 2023-01-01
    “…<h4>Methods</h4>During the first pandemic wave, 140 consenting and eligible hospitalized adult participants with mild-moderate symptomatic disease (specific standard RT-PCR assay positive) were selected as per a convenience sample, and randomized (1:1 ratio) to an open-label (assessor blind) two-arm multicentric drug trial; standard of care (SOC as per Indian guidelines) versus AYUSH 64 combined with SOC (AYUSH plus). …”
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  3. 2203

    ChatGPT-4 Performance on German Continuing Medical Education—Friend or Foe (Trick or Treat)? Protocol for a Randomized Controlled Trial by Christian Burisch, Abhav Bellary, Frank Breuckmann, Jan Ehlers, Serge C Thal, Timur Sellmann, Daniel Gödde

    Published 2025-02-01
    “…Sample size calculation was performed including guess probability (20% correct answers, SD=40%; confidence level of 1–α=.95/α=.05; test power of 1–β=.95; P<.05). …”
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  4. 2204

    The effect of Camellia sinensis ointment on perineal pain and episiotomy wound healing in primiparous women: A triple-blind randomized clinical trial. by Masoumeh Sayahi, Azam Jahangirimehr, Zahra Hatami Manesh, Faraz Mojab, Maryam Nikbina

    Published 2024-01-01
    “…Participants were randomly assigned into two groups of intervention (Camellia sinensis extract ointment) and control (placebo) with a follow-up of 14 days. …”
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  5. 2205

    Repetitive transcranial magnetic stimulation for stimulant use disorders (STIMULUS): protocol for a multi-site, double-blind, randomized controlled trial by Zahraa Atoui, Donald Egan, Manish Kumar Jha, Karen Hartwell, Russell Toll, Susan Sonne, Brenda Brunner-Jackson, Geetha Subramaniam, Jenna L. McCauley, Madhukar Trivedi, Kathleen Brady

    Published 2025-05-01
    “…Discussion Studies exploring rTMS for stimulant use disorders remain limited by small sample sizes, as well as great heterogeneity in defined study population, treatment parameters, retention in treatment, and number of sessions. …”
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  6. 2206

    Smoking and asthma mediate the protective effect of educational attainment on chronic obstructive pulmonary disease risk: a mediation Mendelian randomization analysis by Xue Bai, Lantao Chen, Fenghai Ren, Ying Zhao, Yue Zheng, Yanbo Wang, Sainan Pang, Jian Zhang, Erliang Guo, Huiyan Li

    Published 2025-04-01
    “…Methods Genome-wide association data for years of schooling, cognitive performance, intelligence, COPD, and COPD-related risk factors such as smoking and asthma were obtained from public databases. We conducted two-sample Mendelian randomization (MR) analyses to assess the causal relationships between years of schooling, cognitive performance, intelligence, and the risk of developing COPD. …”
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  7. 2207

    Impact of mobile health-based nutritional education on hemoglobin levels in anemic adolescent girls in rural Bangladesh: a randomized controlled trial by Md Jiaur Rahman, Md Moshiur Rahman, Mohammad Habibur Rahman Sarker, Ryota Matsuyama, Masayuki Kakehashi, Miwako Tsunematsu, Mohammad Ali, Ashir Ahmed, Mohammad Delwer Hossain Hawlader, Hiromi Kawasaki, Yoko Shimpuku

    Published 2025-07-01
    “…We randomly assigned one school to the intervention group and another to the control group and then performed simple random sampling to recruit 138 adolescent girls with anemia from the intervention (n = 69) and control (n = 69) groups. …”
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  8. 2208
  9. 2209

    A Prospective Randomized Pilot Study on the Efficacy of a Dietary Supplementation Regimen of Vitamin E and Selenium for the Prevention of Fluoroquinolone-Induced Tendinopathy by Oana-Maria Mișcă, Liviu-Coriolan Mișcă, Bogdan Huzum, Andreea-Adriana Neamţu, Simona Cerbu, Daniel-Raul Chioibaș, Petrișor Zorin Crăiniceanu, Andrei Gheorghe Marius Motoc

    Published 2025-04-01
    “…Although the incidence of tendinopathy was lower in the interventional group (13.3% vs. 40%), statistical significance was not reached, possibly due to the small sample size. <b>Conclusions</b>: These findings suggest that antioxidant supplementation with vitamin E and selenium may provide a protective effect against fluoroquinolone-induced tendinopathy, warranting further investigation in larger randomized clinical trials.…”
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  10. 2210
  11. 2211

    Causal relationships between immune-related adverse events, immune cell characteristics, and plasma metabolites: insights from Mendelian randomization study by Zhiyuan Shi, Zhao Sun, Dingding Zhang, Lin Zhao

    Published 2025-07-01
    “…Initially, we conducted a two-sample bidirectional Mendelian randomization analysis to assess causal links between immune cell characteristics and immune-related adverse events. …”
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  12. 2212

    Association Between Sarcopenia Susceptibility and Cesarean Section: A Study Based on National Health and Nutrition Examination Survey (NHANES) and Mendelian Randomization by Tian F, Pan H, Wu Q, Jiang D

    Published 2025-06-01
    “…The association between sarcopenia and CS was investigated by adjusting for confounders using multivariable linear and logistic regression analysis. Two-sample bidirectional MR was employed to evaluate causal relationships. …”
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  13. 2213
  14. 2214

    Resilience Coaching for Adolescent Chronic Musculoskeletal Pain: Protocol for a Pilot Randomized Controlled Trial of Promoting Resilience in Stress Management (PRISM) by Sabrina Gmuca, Mackenzie McGill, Nellie Butler, Rui Xiao, Peter F Cronholm, Jami F Young, Tonya M Palermo, Pamela F Weiss, Abby R Rosenberg

    Published 2025-07-01
    “…The secondary objectives are to evaluate potential patient- and caregiver-level moderators of PRISM and identify facilitators of and barriers to engagement in PRISM. The estimated sample size is 65 patient-caregiver dyads per group, for a total of 130 dyads. …”
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  15. 2215

    The Impact of Growth Hormone Treatment on COVID-19 Susceptibility and Severity in Children with Short Stature: A Survey Study with Mendelian Randomization Analysis by Qiu W, Wang R, Liang L, Sun Y, Zhou R, Wang X, Sun W, Gu X

    Published 2024-12-01
    “…We further performed two-sample Mendelian randomization (MR) analyses to explore the causal relationship between GH levels and COVID-19 susceptibility, hospitalization, and severity using genome-wide association study summary-level data.Results: Of the 201 children, 113 (56.2%) reported COVID-19 history, and 149 (74.1%) used GH. …”
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  16. 2216

    Association Between Obstructive Sleep Apnea and Non-Alcoholic Fatty Liver Disease: Epidemiological Cross-Sectional Study and Mendelian Randomization Analysis by Yu T, Zhou Y, Wu X, Fang Z, Liu C

    Published 2025-06-01
    “…To assess causal inference and minimize observational bias, five distinct two-sample Mendelian randomization approaches were applied.Results: After excluding 9345 individuals who did not meet the study criteria, a total of 6215 participants were included. …”
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  17. 2217

    Support based on psychoeducation intervention to address quality of life and care burden among caregivers of patients with cancer: a randomized controlled trial by Seyedmohammad Mirhosseini, Fateme Imani Parsa, Hasan Moghadam-Roshtkhar, Mohammad Hasan Basirinezhad, Malihe Ameri, Hossein Ebrahimi

    Published 2025-02-01
    “…Of the 69 caregivers initially approached, one declined to participate, and two were excluded due to lack of smartphone access, leaving a final sample of 66 caregivers. Participants were assigned to either the psychoeducation intervention program or the control group using the quadruple block randomization method. …”
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  18. 2218

    Genetically predicted blood metabolites mediate the association between immune cell characteristics and urolithiasis: A Mendelian randomization study and mediation analysis by Chengcheng Wei, Jiatai He, Jun Wen, Shunyao Wang, Mengjia Shi, Juan Hu, Huanhuan Tan, Jinjun Guo, Xiaosong Li

    Published 2025-09-01
    “…We employed a two-sample Mendelian randomization analysis to examine the association between immune cell properties, blood metabolites, and urolithiasis risk. …”
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  19. 2219
  20. 2220

    Effect of Helicobacter pylori eradication on gastric cancer risk in patients with intestinal metaplasia or dysplasia: a meta-analysis of randomized controlled trials by Qiang Fu, Huidong Yu, Ming Liu, Liang Chen, Weiyang Chen, Ziyi Wang, Ziyi Wang, Wenya Li

    Published 2025-03-01
    “…Relative risk (RR) with its 95% confidence interval (CI) using random-effects model were employed for the effect estimate. …”
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