Prevalence

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Review clinical trials related to Prevalence. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

OSAHS Screening in Diverse Populations

The goal of this prospective observational study is to learn about the current prevalence of obstructive sleep apnea-hypopnea syndrome in community population, patients with specific diseases and special population from China. The main question it aims to answer is: (1) What are the prevalence and clinical characteristics of OSA in the community population, the specific disease population and the special population respectively? (2) How about the application value of each OSA screening questionnaire for different populations?Participants will all complete a screening questionnaire, and some will be selected by random sampling to complete either a polysomnography (PSG) or a portable sleep monitor (PM).

Participants needed: 100,000
Trial details
Age: 18-80Biological sex: AllType: ObservationalSponsor: Kang WuUpdated: Jul 30, 2026Locations: 2Duration: 2 Days
Eligibility criteria

Sign the informed consent form before participating in the study [+2]

Incomplete answers to the scale [+4]

Status: Recruiting

Epidemiology of Abdominal Aortic Aneurysm With Concomitant Primary Lung Cancer

Retrospective clinical case studies in recent years have shown that most cases of lung cancer and abdominal aortic aneurysm (AAA) are detected at the same time and that there is a wide variation in the prevalence of AAA in patients with primary lung cancer reported in the literature, with some papers suggesting as high as 11%, suggesting that there may be a relationship between the prevalence of the two diseases. However, its exact incidence and mechanism are unknown. Accurate prevention of AAA in patients with primary lung cancer requires more in-depth studies. To solve the above problems, a multi-center prospective epidemiological investigation and mechanism study on the association of AAA in primary lung cancer combined has become particularly urgent. The results of the study will be of great significance for the follow-up treatment and prognosis of lung cancer patients as well as the improvement of long-term survival rate of lung cancer patients, and will also provide scientific basis and clinical guidance for the screening and prevention of AAA in lung cancer patients.

Participants needed: 2,000
Trial details
Age: 20-90Biological sex: AllType: ObservationalSponsor: First Affiliated Hospital of Kunming Medical UniversityUpdated: Jan 15, 2025Locations: 2Duration: 1 Year
Eligibility criteria

Patients diagnosed with primary lung cancer through clinical or pathological exa...

Patients diagnosed with primary lung cancer who refuse to undergo abdominal aort...

Status: Not yet recruiting

Pain in Subjects with High Capacity Cognitive Abilities

In many books and website focused in high cognitive abilities talks about pain in these subjects. However, when the investigators look for in sites like pubmed there are no literature about this topic. With this study the investigators will try to know better pain experience in this population and chronic pain prevalence

Participants needed: 150
Trial details
Biological sex: AllType: ObservationalSponsor: Universidad Europea de MadridUpdated: Nov 19, 2024Locations: 1Duration: 1 Day
Eligibility criteria

People with a diagnosis of high cognitive abilities

People with incapacity to answer the questionnaire [+1]