title: Seasonal variation of blood cholesterol levels: study methodology.
abstract: This manuscript provides a description of the methodology used in the Seasonal Variation of Blood Cholesterol Levels (SEASON) study, with the intent of informing the scientific community of the available data sets and to invite a dialogue with scientists in complementary fields. The primary aim of the SEASON study is to describe and delineate the causes of seasonal variation of blood lipid levels in the general population. This research project is designed specifically to systematically collect and analyze a number of important variables necessary to study the role of seasonality in blood lipids and relevant covariates.
authors.affiliation: University of Massachusetts Medical School, Department of Medicine, Worcester 01655, USA.
authors.forename: P A
authors.initials: PA
authors.lastname: Merriam
authors.forename: I S
authors.initials: IS
authors.lastname: Ockene
authors.forename: J R
authors.initials: JR
authors.lastname: Hebert
authors.forename: M C
authors.initials: MC
authors.lastname: Rosal
authors.forename: C E
authors.initials: CE
authors.lastname: Matthews
mesh_terms: D000328:Adult; D000368:Aged; D002784:Cholesterol / Q000097:blood* / Q000528:radiation effects; D002791:Cholesterol, Dietary / Q000097:blood; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000378:metabolism; D008027:Light; D008297:Male; D008685:Meteorological Concepts; D008875:Middle Aged; D005082:Physical Exertion / Q000502:physiology; D011446:Prospective Studies; D011897:Random Allocation; D012107:Research Design; D012621:Seasons; D011795:Surveys and Questionnaires
chemical_list: D002791:Cholesterol, Dietary; D002784:Cholesterol; D006854:Hydrocortisone