Titre : Groupes témoins

Groupes témoins : Questions médicales fréquentes

Termes MeSH sélectionnés :

Prostate-Specific Antigen

Questions fréquentes et termes MeSH associés

Diagnostic 4

#1

Comment identifier un groupe témoin ?

Un groupe témoin est constitué de participants similaires au groupe traité, mais sans intervention.
Groupes témoins Méthodes de recherche
#2

Quel est le rôle d'un groupe témoin ?

Il permet d'évaluer l'effet d'un traitement en comparant les résultats avec ceux du groupe traité.
Groupes témoins Évaluation des traitements
#3

Comment choisir un groupe témoin ?

Le choix doit se baser sur des critères d'inclusion similaires à ceux du groupe traité.
Groupes témoins Critères d'inclusion
#4

Les groupes témoins sont-ils toujours nécessaires ?

Oui, ils sont essentiels pour établir des comparaisons valides dans les études cliniques.
Groupes témoins Essais cliniques

Symptômes 2

#1

Les groupes témoins montrent-ils des symptômes ?

Non, ils ne reçoivent pas de traitement, donc ils ne présentent pas de symptômes liés au traitement.
Groupes témoins Symptômes
#2

Comment les symptômes sont-ils évalués ?

Les symptômes sont évalués par des questionnaires ou des examens cliniques dans les deux groupes.
Évaluation des symptômes Groupes témoins

Prévention 2

#1

Les groupes témoins aident-ils à la prévention ?

Oui, ils permettent d'évaluer l'efficacité des interventions préventives par comparaison.
Prévention Groupes témoins
#2

Comment les groupes témoins influencent-ils la prévention ?

Ils fournissent des données sur l'impact des mesures préventives en comparaison avec l'absence d'intervention.
Mesures préventives Groupes témoins

Traitements 2

#1

Quel type de traitement est comparé ?

Le traitement expérimental est comparé à un placebo ou à un traitement standard dans le groupe témoin.
Traitements expérimentaux Groupes témoins
#2

Comment les résultats sont-ils mesurés ?

Les résultats sont mesurés par des critères prédéfinis, comme l'amélioration des symptômes.
Mesure des résultats Groupes témoins

Complications 2

#1

Les complications sont-elles observées dans les groupes témoins ?

Les complications peuvent être observées, mais elles ne sont pas dues au traitement expérimental.
Complications Groupes témoins
#2

Comment les complications sont-elles analysées ?

Elles sont analysées en comparant leur fréquence entre le groupe témoin et le groupe traité.
Analyse des complications Groupes témoins

Facteurs de risque 2

#1

Les groupes témoins aident-ils à identifier des facteurs de risque ?

Oui, ils permettent de comparer les facteurs de risque entre les groupes traité et témoin.
Facteurs de risque Groupes témoins
#2

Comment les facteurs de risque sont-ils évalués ?

Ils sont évalués par des questionnaires et des analyses statistiques dans les deux groupes.
Évaluation des facteurs de risque Groupes témoins
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Dr Olivier Menir

Contenu validé par Dr Olivier Menir

Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale


Validation scientifique effectuée le 21/04/2025

Contenu vérifié selon les dernières recommandations médicales

Auteurs principaux

Thomas Steger-Hartmann

5 publications dans cette catégorie

Affiliations :
  • Bayer Research & Development, Pharmaceuticals, Investigative Toxicology, Berlin, Germany.

Tania Rivera-Hernandez

2 publications dans cette catégorie

Affiliations :
  • School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia.
Publications dans "Groupes témoins" :

Mark J Walker

2 publications dans cette catégorie

Affiliations :
  • School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, Queensland, Australia.
Publications dans "Groupes témoins" :

Mark R Davies

2 publications dans cette catégorie

Affiliations :
  • Department of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
Publications dans "Groupes témoins" :

Alexander Gurjanov

2 publications dans cette catégorie

Affiliations :
  • Bayer Research & Development, Pharmaceuticals, Investigative Toxicology, Berlin, Germany. Electronic address: alexander.gurjanov@bayer.com.

Lea A I Vaas

2 publications dans cette catégorie

Affiliations :
  • Bayer Research & Development, Pharmaceuticals, Research & Pre-Clinical Statistics Group, Berlin, Germany.

Matthew Clark

2 publications dans cette catégorie

Affiliations :
  • KALOS Technologies, Philadelphia, Pennsylvania, USA.

Alexander Amberg

2 publications dans cette catégorie

Affiliations :
  • Sanofi, Preclinical Safety, Frankfurt, Germany.

Frank Bringezu

2 publications dans cette catégorie

Affiliations :
  • Merck Healthcare KGaA, Chemical & Preclinical Safety, Darmstadt, Germany.

Wolfgang Muster

2 publications dans cette catégorie

Affiliations :
  • Roche Pharmaceutical Research & Early Development, Pharmaceutical Sciences, Roche Innovation Center, Basel, Switzerland.

Brice Batomen

1 publication dans cette catégorie

Affiliations :
  • Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
Publications dans "Groupes témoins" :

Tarik Benmarhnia

1 publication dans cette catégorie

Affiliations :
  • Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA.
  • Irset Institut de Recherche en Santé, Environnement et Travail, Inserm, University of Rennes, EHESP, Rennes, France.
Publications dans "Groupes témoins" :

Hua Li

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Lumei Huang

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Hailong Jiang

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Jianyang Fang

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Zhide Guo

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Fei Gao

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Mei Chen

1 publication dans cette catégorie

Affiliations :
  • College of Materials Science and Engineering, Hunan University Changsha Hunan 410082 China.
Publications dans "Groupes témoins" :

Duo Xu

1 publication dans cette catégorie

Affiliations :
  • Center for Molecular Imaging and Translational Medicine, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University Xiamen Fujian 361102 China zhangxzh@xmu.edu.cn zijing.li@xmu.edu.cn.
Publications dans "Groupes témoins" :

Sources (10000 au total)

Prostate-Specific Antigen Screening in Transgender Patients.

Approximately 0.4-1.3% of the worldwide population is transgender. Although the exact prevalence is unknown, there is an increase in open identification as transgender. Among transgender women (TW), t... To assess our current understanding of CaP incidence and prostate-specific antigen (PSA) screening in TW.... We performed a nonsystematic narrative review of all PubMed publications through June 2022 according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement. Given ... There is no consensus regarding PSA screening in TW from any of the major societies, and TW are largely absent from guidelines. Case report data suggest that TW with CaP may have more aggressive disea... We are in the infancy of our understanding of PSA screening in TW. Important avenues for future research include understanding the risks/benefits of PSA screening in TW, how best to mitigate potential... We examined patterns of prostate cancer screening for transgender women. Little is known about prostate cancer incidence or screening in this population. Additional research is needed to establish gui...

Any decline in prostate-specific antigen levels identifies survivors scheduled for prostate-specific membrane antigen-directed radioligand therapy.

Prostate-specific membrane antigen (PSMA)-targeted radioligand therapy (RLT) is increasingly incorporated in the therapeutic algorithm of patients with metastatic castration-resistant prostate cancer ... In this bicentric analysis, we included 184 mCRPC patients treated with... A total of 114/184 patients (62.0%) showed any PSA decline (PSA response >50%, 55/184 [29.9%]). For individuals exhibiting a PSA decline >50%, OS of 19 months was significantly longer relative to nonr... In mCRPC patients scheduled for RLT, early biochemical response was tightly linked to prolonged survival, irrespective of the magnitude of PSA decline. As such, even in patients with PSA decrease of l...

Total Prostate Specific Antigen in Prostate Cancer Screening in Hyperglycemic Individuals.

In this study, it was aimed to investigate the reliability of total prostate-specific antigen (t-PSA) in prostate cancer screening in hyperglycemic (≥126 mg/dL) individuals.... This research was planned as a cross-sectional retrospective study. Three hundred eleven cases which underwent biopsy with the suspicion of prostate cancer in the hospital were included in the study. ... It was determined that the t-PSA measurement was higher in the patient group with cancer (P < .001). It was determined that the median t-PSA levels of the intermediate and high cancer groups were high... As a contribution to literature, we found that the t-PSA test lost its sensitivity in cases with plasma glucose levels above normal. Loss of sensitivity may result in underdiagnosis in prostate cancer...

Access to Prostate-Specific Antigen Testing and Mortality Among Men With Prostate Cancer.

Prostate-specific antigen (PSA) screening for prostate cancer is controversial but may be associated with benefit for certain high-risk groups.... To evaluate associations of county-level PSA screening prevalence with prostate cancer outcomes, as well as variation by sociodemographic and clinical factors.... This cohort study used data from cancer registries based in 8 US states on Hispanic, non-Hispanic Black, and non-Hispanic White men aged 40 to 99 years who received a diagnosis of prostate cancer betw... County-level PSA screening prevalence was estimated using the Behavior Risk Factor Surveillance System survey data from 2004, 2006, 2008, 2010, and 2012 and weighted by population characteristics.... Multivariable logistic, Cox proportional hazards regression, and competing risks models were fit to estimate adjusted odds ratios (AOR) and adjusted hazard ratios (AHR) for associations of county-leve... Of 814 987 men with prostate cancer, the mean (SD) age was 67.3 (9.8) years, 7.8% were Hispanic, 12.2% were non-Hispanic Black, and 80.0% were non-Hispanic White; 17.0% had advanced disease. There wer... This population-based cohort study of men with prostate cancer suggests that higher county-level prevalence of PSA screening was associated with lower odds of advanced disease, all-cause mortality, an...

Prostate cancer risk prediction based on clinical factors and prostate-specific antigen.

The incidence rate of prostate cancer (PCa) has continued to rise in Korea. This study aimed to construct and evaluate a 5-year PCa risk prediction model using a cohort with PSA < 10 ng/mL by incorpor... The PCa risk prediction model including PSA levels and individual risk factors was constructed using a cohort of 69,319 participants from the Kangbuk Samsung Health Study. 201 registered PCa incidence... The risk prediction model included age, smoking status, alcohol consumption, family history of PCa, past medical history of dyslipidemia, cholesterol levels, and PSA level. Especially, an elevated PSA... Our risk prediction model was effective in predicting PCa in a population according to PSA levels. When PSA levels are inconclusive, an assessment of both PSA and specific individual risk factors (e.g...

Ki67 and prostate specific antigen are prognostic in metastatic hormone naïve prostate cancer.

For metastatic hormone naïve prostate cancer patients, androgen deprivation therapy (ADT) with escalation therapy including docetaxel and/or androgen targeting drugs is the standard therapy. However, ... Prostate biopsies from 92 patients with metastatic hormone naïve PC (PSA > 80 ng/mL or clinical metastases) were immunohistochemically evaluated for PSA and Ki67. Gene expression analysis was performe... The immunohistochemical score for PSA was the strongest prognostic factor for progression-free and overall survival after ADT. Consequently, the ratio between Ki67 and PSA displayed a stronger prognos... PSA and Ki67 immunoreactive scores are prognostic in the metastatic hormone-sensitive setting, with PSA being superior. The combination of Ki67 and PSA did not give additional prognostic value. The re...

Value of serum free prostate-specific antigen density in the diagnosis of prostate cancer.

To investigate the value of serum free prostate-specific antigen density (fPSAD) in the diagnosis of prostate cancer (PCa).... The data of 558 patients who underwent transrectal ultrasound-guided prostate biopsy were retrospectively analyzed. According to the pathological results, the patients were divided into a PCa group an... tPSA, PSAD, (f/t)/PSAD, and fPSAD had high accuracy in predicting PCa with AUC values of 0.820, 0.900, 0.846, and 0.867. fPSAD showed lower diagnostic sensitivity but significantly higher specificity ... With the optimal cutoff value of 0.062, fPSAD has a higher diagnostic value for PCa than tPSA, f/tPSA, (f/t)/PSAD, and PSAD, and can well predict the risk of PCa, significantly improve the clinical di...

Serum prostate specific antigen is a good indicator of prostatic volume in men with benign prostatic hyperplasia.

Benign prostatic hyperplasia (BPH) is the most common cause of bladder outlet obstruction in men over the age of 50 years. An association between the prostate specific antigen (PSA), International Pro... To determine the correlation between the PSA, IPSS and PV in men of African descent.... This was a cross sectional analysis involving 92 patients diagnosed as having symptomatic BPH at the Ho Teaching Hospital.... The data were collected using standardised questionnaires. The IPSS determined urinary symptom severity. The PV was determined using a transabdominal ultrasound machine. Serum PSA was retrieved from t... The mean PV was 61.04 cm3 ± 21.95 cm3, the mean PSA was 4.21 ng/mL ± 3.85 ng/mL, and mean IPSS of 21.59 ± 3.78. The Pearson's correlation between PV and PSA was 0.283 (p = 0.01), between PV and IPSS w... This study showed that serum PSA has a positive correlation with PV. However, IPSS had no significant association with PSA or PV in patients with BPH.Contribution: This study provides insights into th...