Results 1 to 10 of about 10,443,238 (288)

Cohort studies

Kerala Journal of Psychiatry, 2021
Cohort studies are observational analytical studies and are placed just below randomized controlled trials in the hierarchy of scientific evidence. They are also called longitudinal studies and can be prospective, retrospective or ambidirectional.
Pankajakshan Vijayanthi Indu, Karunakaran Vidhukumar   +1 more
doaj   +1 more source

Dietary Phytoestrogen Intake and The Risk of Endometriosis in Iranian Women: A Case-Control Study [PDF]

International Journal of Fertility and Sterility, 2020
Background Endometriosis is an important gynecologic disease affecting reproductive-age women. Based on the effect of phytoestrogens on inflammatory, immunological and hormonal factors, limited studies have suggested that phytoestrogen consumption ...
Samaneh Youseflu, Shahideh Jahanian Sadatmahalleh, Azadeh Mottaghi, Anoshirvan Kazemnejad   +3 more
doaj   +1 more source

How to Ask the Right Question and Find the Right Answer: Clinical Research for Transplant Nephrologists

Frontiers in Immunology, 2022
Clinical research is about asking and answering questions. Before solutions relevant to clinical problems can be sought, clinicians must frame questions in ways that are answerable using the methods of clinical research.
Sonia Rodríguez-Ramírez, Sonia Rodríguez-Ramírez, S. Joseph Kim, S. Joseph Kim, S. Joseph Kim   +4 more
doaj   +1 more source

Pre-illness isoflavone consumption and disease risk of ulcerative colitis: a multicenter case-control study in Japan. [PDF]

PLoS ONE, 2014
Previous studies have suggested that estrogens play a role in the development of ulcerative colitis (UC). Because isoflavones have a similar structure to 17β-estradiol, dietary consumption of isoflavones may have similar influences on the development of ...
Satoko Ohfuji, Wakaba Fukushima, Kenji Watanabe, Satoshi Sasaki, Hirokazu Yamagami, Masakazu Nagahori, Mamoru Watanabe, Yoshio Hirota, Japanese Case-Control Study Group for Ulcerative Colitis   +8 more
doaj   +1 more source

Association of Maternal Hyperhomocysteinemia with Preeclampsia: A Hospital Based Case-Control Study

Proceedings, 2021
Introduction: Preeclampsia is among the leading causes of feto-maternal morbidity and mortality throughout the world, especially in developing countries like Pakistan.
Zoofishan Qureshi, Muhammad Ashraf Chaudhry, Seema Imdad, Tariq Mukhtar Farani, Ayesha Humayun   +4 more
doaj   +1 more source

Investigation on an outbreak of bacillary dysentery due to infection of Shigella sonnei in a town of Guangxi Province

Dialogues in Health, 2023
Objective: To provide a scientific basis for identifying the causes of an outbreak and providing preventive and control measures to prevent the recurrence of similar outbreaks. Study design: A case-control study.
Tian Ren, Jiang Yuyan, Lu Huan, Pei Yingxin, Tan Dongmei, Deng Qiumei, Yanxu Zhong   +6 more
doaj   +1 more source

Psoriasis and its association with metabolic syndrome: A case–Control study at a tertiary care center in a semi-Urban region of South India

Clinical Dermatology Review, 2023
Background: Metabolic syndrome (MS) has been associated with skin diseases such as psoriasis. They share a common inflammatory pathway and therefore have an impact on each other.
Akshay Samagani, Harikishan Kumar Yadalla, P Raju Belliappa   +2 more
doaj   +1 more source

Study designs: Part 3 - Analytical observational studies

Perspectives in Clinical Research, 2019
In analytical observational studies, researchers try to establish an association between exposure(s) and outcome(s). Depending on the direction of enquiry, these studies can be directed forwards (cohort studies) or backwards (case–control studies).
Priya Ranganathan, Rakesh Aggarwal
doaj   +1 more source

A Study on the Evaluation of Serum Uric Acid in Patients with Essential Hypertension

Medical Journal of Dr. D.Y. Patil Vidyapeeth, 2023
Background: Hyperuricemia can lead to nephrolithiasis and gout. It is an essential indicator of diseases like metabolic syndrome, cardiovascular disease, diabetes mellitus, and chronic renal disease. It indicates that hyperuricemia is associated with the
Tabitha R. J. Chandrika, Chennakeshavulu Dara, Triveni Sagar Sandepogu, Surendra Babu Darivemula, Gogineni Sai Namrata, N Vijayalakshmi, Sivakumar Swetha   +6 more
doaj   +1 more source

The association between environmental factors and the development of Crohn's disease with focusing on passive smoking: A multicenter case-control study in Japan.

PLoS ONE, 2019
BackgroundThe number of patients with Crohn's disease (CD) in Japan has recently been increasing. We examined the association between environmental factors and the development of CD in Japanese focusing on passive smoking.MethodsWe conducted a ...
Kyoko Kondo, Satoko Ohfuji, Kenji Watanabe, Hirokazu Yamagami, Wakaba Fukushima, Kazuya Ito, Yasuo Suzuki, Yoshio Hirota, Japanese Case-Control Study Group for Crohn's disease   +8 more
doaj   +1 more source