Literature DB >> 1932311

Analysis of quantitative data by quantiles in epidemiologic studies: classification according to cases, noncases, or all subjects?

C C Hsieh1, P Maisonneuve, P Boyle, G J Macfarlane, C Roberston.   

Abstract

Quantitative exposure data in epidemiologic studies are frequently analyzed by ordered categories. Categorization by quantiles can be based on the distribution of (1) cases, (2) noncases, and (3) all subjects. The advantages of the three schemes in determining quantiles were compared. They were found to give the same power regarding a test for trend over a wide range of study situations. Considerations on the representativeness and the ease of the analysis implementation could dictate the choice of the categorization scheme.

Mesh：

Year:  1991        PMID： 1932311     DOI： 10.1097/00001648-199103000-00008

Source DB:  PubMed          Journal:  Epidemiology        ISSN： 1044-3983            Impact factor:   4.822


  14 in total

1.  Levels of folate receptor autoantibodies in maternal and cord blood and risk of neural tube defects in a Chinese population.

Authors:  Na Yang; Linlin Wang; Richard H Finnell; Zhiwen Li; Lei Jin; Le Zhang; Robert M Cabrera; Rongwei Ye; Aiguo Ren
Journal:  Birth Defects Res A Clin Mol Teratol       Date:  2016-05-11

2.  Soyfood and isoflavone intake and risk of type 2 diabetes in Vietnamese adults.

Authors:  C T Nguyen; N M Pham; V V Do; C W Binns; V M Hoang; D A Dang; A H Lee
Journal:  Eur J Clin Nutr       Date:  2017-05-10       Impact factor: 4.016

3.  Psychometric Evaluation of the Ford Insomnia Response to Stress Test (FIRST) in Early Pregnancy.

Authors:  Bizu Gelaye; Qiu-Yue Zhong; Yasmin V Barrios; Susan Redline; Christopher L Drake; Michelle A Williams
Journal:  J Clin Sleep Med       Date:  2016-04-15       Impact factor: 4.062

4.  Maternal serum C-reactive protein concentrations in early pregnancy and subsequent risk of preterm delivery.

Authors:  Vitool Lohsoonthorn; Chunfang Qiu; Michelle A Williams
Journal:  Clin Biochem       Date:  2007-01-05       Impact factor: 3.281

5.  Circulating adipocytokines and chronic kidney disease.

Authors:  Katherine T Mills; L Lee Hamm; A Brent Alper; Chad Miller; Alhakam Hudaihed; Saravanan Balamuthusamy; Chung-Shiuan Chen; Yanxi Liu; Joseph Tarsia; Nader Rifai; Myra Kleinpeter; Jiang He; Jing Chen
Journal:  PLoS One       Date:  2013-10-07       Impact factor: 3.240

6.  Association of decreased serum brain-derived neurotrophic factor (BDNF) concentrations in early pregnancy with antepartum depression.

Authors:  Jenny Fung; Bizu Gelaye; Qiu-Yue Zhong; Marta B Rondon; Sixto E Sanchez; Yasmin V Barrios; Karin Hevner; Chunfang Qiu; Michelle A Williams
Journal:  BMC Psychiatry       Date:  2015-03-10       Impact factor: 3.630

7.  Colorectal adenomas and energy intake, body size and physical activity: a case-control study of subjects participating in the Nottingham faecal occult blood screening programme.

Authors:  J Little; R F Logan; P G Hawtin; J D Hardcastle; I D Turner
Journal:  Br J Cancer       Date:  1993-01       Impact factor: 7.640

8.  Colorectal adenomas and diet: a case-control study of subjects participating in the Nottingham faecal occult blood screening programme.

Authors:  J Little; R F Logan; P G Hawtin; J D Hardcastle; I D Turner
Journal:  Br J Cancer       Date:  1993-01       Impact factor: 7.640

9.  The association of fat and other macronutrients with breast cancer: a case-control study from Greece.

Authors:  K Katsouyanni; A Trichopoulou; S Stuver; Y Garas; A Kritselis; G Kyriakou; M Stoïkidou; P Boyle; D Trichopoulos
Journal:  Br J Cancer       Date:  1994-09       Impact factor: 7.640

10.  Dietary factors and the risk of endometrial cancer: a case--control study in Greece.

Authors:  A Tzonou; L Lipworth; A Kalandidi; A Trichopoulou; I Gamatsi; C C Hsieh; V Notara; D Trichopoulos
Journal:  Br J Cancer       Date:  1996-05       Impact factor: 7.640
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