Abstract：
PURPOSE:To examine the association between folic acid (FA) supplementation obtained through either single FA tablets or multivitamins (MVs) and menstrual cycle characteristics among 5386 women aged 18-40 years, enrolled in an Internet-based study of Danish women attempting pregnancy during 2007-2011. METHODS:In a cross-sectional study, we used logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for the associations of FA supplementation with menstrual cycle regularity; short (<27 days), long (30-33 days), and very long (≥34 days) cycle lengths; and duration and intensity of menstrual bleeding. RESULTS:Compared with nonuse, FA supplementation was associated with reduced odds of short cycle length (OR = 0.80, 95% CI: 0.68-0.94) and a trend toward increased odds of very long cycle length (OR = 1.21, 95% CI: 0.87-1.68) compared with cycle length of 27-29 days. The inverse association with short cycle length was stronger among 18- to 30-year-old women (OR = 0.68, 95% CI: 0.53-0.87), nulliparous women (OR = 0.66, 95% CI: 0.52-0.84), and women who used both FA and MVs (OR = 0.75, 95% CI: 0.60-0.95). We found no clear association between FA supplementation and cycle regularity and duration and intensity of menstrual bleeding. CONCLUSIONS:FA supplementation was inversely associated with short menstrual cycle length. This association was strongest among women aged 18-30 years, nulliparous women, and women who used both FA and MVs.
journal_name
Ann Epidemioljournal_title
Annals of epidemiologyauthors
Cueto HT,Riis AH,Hatch EE,Wise LA,Rothman KJ,Sørensen HT,Mikkelsen EMdoi
10.1016/j.annepidem.2015.05.008subject
Has Abstractpub_date
2015-10-01 00:00:00pages
723-9.e1issue
10eissn
1047-2797issn
1873-2585pii
S1047-2797(15)00216-1journal_volume
25pub_type
杂志文章abstract：PURPOSE:To calculate the prevalence of non-traditional cardiovascular disease (CVD) risk factors across diabetes status and for persons with and without the metabolic syndrome. METHODS:Data were analyzed from the Third National Health and Nutrition Examination Survey for normal plasma glucose [<100 mg/dl, n=4589]; imp...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2004.01.002
更新日期：2004-10-01 00:00:00
abstract：PURPOSE:To identify individual- and neighborhood-level correlates of membership within high HIV prevalence drug networks. METHODS:We recruited 378 New York City drug users via respondent-driven sampling (2006-2009). Individual-level characteristics and recruiter-recruit relationships were ascertained and merged with 2...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2013.02.006
更新日期：2013-05-01 00:00:00
abstract：:Mexican Americans have a high prevalence of diabetes relative to non-Hispanic whites, but paradoxically experience a lower prevalence of myocardial infarction and lower cardiovascular mortality (at least in men). To determine whether Mexican Americans might be more resistant to the atherogenic effects of diabetes than...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/1047-2797(92)90043-p
更新日期：1992-01-01 00:00:00
abstract：PURPOSE:Little is known about how seasonal variation in physical activity relates to declining physical activity in adolescence. We quantified how each of daily weather conditions and season affect physical activity during adolescence. METHODS:We followed 1293 students, initially aged 12 to 13 years over 5 years. Part...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2008.12.008
更新日期：2009-03-01 00:00:00
abstract：PURPOSE:Although much value has been placed on type I error event probabilities in clinical trials, interpretive difficulties often arise that are directly related to clinical trial complexity. Deviations of the trial execution from its protocol, the presence of multiple treatment arms, and the inclusion of multiple en...
journal_title：Annals of epidemiology
pub_type： 杂志文章,评审
doi：10.1016/s1047-2797(98)00003-9
更新日期：1998-08-01 00:00:00
abstract：PURPOSE:The Women's Health Initiative (WHI) is the largest research program ever initiated in the United States with a focus on diet and health. Therefore, it is important to understand and document the measurement characteristics of the key dietary assessment instrument: the WHI food frequency questionnaire (FFQ). ME...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/s1047-2797(98)00055-6
更新日期：1999-04-01 00:00:00
abstract：PURPOSE:Undiagnosed diabetes disproportionately affects medically underserved groups. It is unknown whether being an immigrant confers additional risk for undiagnosed diabetes. The purpose of this study was to examine independent associations of immigrant status and race/ethnicity with the prevalence of diagnosed and u...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2020.07.009
更新日期：2020-11-01 00:00:00
abstract：PURPOSE:To demonstrate how principal components analysis can be used to describe patterns of weight changes in response to an intensive lifestyle intervention. METHODS:Principal components analysis was applied to monthly percent weight changes measured on 2,485 individuals enrolled in the lifestyle arm of the Action f...
journal_title：Annals of epidemiology
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.annepidem.2009.06.001
更新日期：2009-10-01 00:00:00
abstract：PURPOSE:Cigarette smoking is an established risk factor for pancreatic cancer (PC). We examined the association between cigarette smoking and PC in a San Francisco Bay Area clinic-based, case-control study. METHODS:A total of 536 cases and sex and age frequency-matched controls (n = 869) were recruited predominately f...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2015.08.011
更新日期：2015-11-01 00:00:00
abstract：PURPOSE:To determine whether homocyst(e)ine (H(e)) is related to hemostatic factors in a population-based sample without evidence of cardiovascular disease. METHODS:A subsample of 660 participants--67 African-American women, 53 African-American men, 201 white women, and 339 white men--was selected from the Atheroscler...
journal_title：Annals of epidemiology
pub_type： 杂志文章,多中心研究
doi：10.1016/s1047-2797(01)00311-8
更新日期：2002-05-01 00:00:00
abstract：PURPOSE:Most studies, primarily conducted in populations of European ancestry, reported increased risk of head and neck cancer (HNC) associated with leanness (body mass index [BMI] <18.5 kg/m(2)) and decreased for overweight or obesity (25.0 to <30.0 and >30 kg/m(2), respectively), compared with normal weight (18.5 to ...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2013.11.004
更新日期：2014-02-01 00:00:00
abstract：PURPOSE:A U-shaped relation between alcohol use and mortality may be due to biological hormesis, differential response (i.e., effect modification) by health status or changes in alcohol use with ill-health and aging (i.e., reverse causality).We examined whether alcohol had the same association with mortality in healthy...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2009.01.011
更新日期：2009-06-01 00:00:00
abstract：PURPOSE:Previous studies have shown a correlation between measures of social capital and morbidity, mortality, and violent crime. This article examines the association across U.S. states between social capital (as measured by mutual trust and civic engagement) and firearm availability. METHODS:The analysis uses OLS to...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/s1047-2797(01)00235-6
更新日期：2001-10-01 00:00:00
abstract：PURPOSE:The magnitude and timing of the reported decrease in risk of renal cell carcinoma (RCC) attributed to smoking cessation is not well characterized. Furthermore, conclusions from previous investigations have been hampered by unstable risk estimates, broad exposure categories and/or insufficient adjustment for the...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/s1047-2797(02)00271-5
更新日期：2003-04-01 00:00:00
abstract：:National and international policy-making organizations advocate nonpharmacologic therapies to reduce blood pressure (BP). However, data to support such recommendations in older persons are virtually nonexistent. The Trials of Nonpharmacologic Intervention in the Elderly (TONE) is a randomized, controlled trial that wi...
journal_title：Annals of epidemiology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/1047-2797(94)00056-y
更新日期：1995-03-01 00:00:00
abstract：:The current study investigated the association between the use of recreational drugs at the time of sexual activity and high-risk sexual behavior in a Toronto cohort of 249 homosexual and bisexual men over a 5-year period commencing in 1984 to 1985 and concluding in 1989 to 1990. The main analysis was based on a total...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/1047-2797(93)90030-8
更新日期：1993-05-01 00:00:00
abstract：:A study of blood lipid levels in adolescent students in rural and urban areas of Greece was undertaken. Blood samples were drawn from 307 adolescents aged 12 to 18 years attending two rural and two urban high schools of different socioeconomic level (urban/lower, urban/higher). Obesity among adolescents had statistica...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/1047-2797(94)00094-a
更新日期：1995-07-01 00:00:00
abstract：:PURPOSE: To present the parallel histories of epidemiologic and electronic publishing and consider positive and negative factors that might affect their amalgam.METHODS: We performed a quantitative assessment of the arc of epidemiologic publication from 1966-1999, using major self-designated epidemiologic journals as ...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/s1047-2797(00)00096-x
更新日期：2000-10-01 00:00:00
abstract：PURPOSE:Understanding how to mitigate the present black-white obesity disparity in the United States is a complex issue, stemming from a multitude of intertwined causes. An appropriate but underused approach to guiding policy approaches to this problem is to account for this complexity using simulation modeling. METHO...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2014.05.012
更新日期：2014-08-01 00:00:00
abstract：PURPOSE:Using three-dimensional (3D) scanning data along with other existing subject's medical profiles to search for better anthropometric markers in association with type 2 Diabetes Mellitus (DM). METHODS:In this cross-sectional study with 6007 subjects undergoing health examination in a period of 3 years, the autho...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2005.04.014
更新日期：2006-05-01 00:00:00
abstract：PURPOSE:In prospective cohort studies, incidence is typically estimated by the ratio of the observed number of events to person-time at risk. This crude estimator is consistent for the true population incidence rate (IR) under mild assumptions. Here we consider a different setting where only cross-sectional data are av...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2020.06.005
更新日期：2021-01-01 00:00:00
abstract：:PURPOSE: To assist in elucidating principles underlying the design of injury case-control studies.APPROACH: We begin by defining "event" as the sequence of circumstances that place a person at risk of injury (e.g. bicycle crash) and "injury given the event" as the resultant physical damage (e.g. head injury in bicycle...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/s1047-2797(00)00134-4
更新日期：2000-10-01 00:00:00
abstract：PURPOSE:Continuous monitoring of health determinants in populations is necessary to predict future disease burdens. The objective of this study was to assess the prevalences of major risk factors for lifestyle diseases for 8 years (1993 to 2000) in representative samples of the general population. METHODS:Independent ...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/s1047-2797(03)00055-3
更新日期：2003-08-01 00:00:00
abstract：PURPOSE:Studies have shown a high prevalence of weight loss in older adults is associated with an increased risk of death. We investigated this in a population-based study. METHODS:Persons living in Beaver Dam, Wisconsin, participated in a baseline examination between 1988 and 1990 (n=4926). A medical examination and ...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2004.12.003
更新日期：2005-08-01 00:00:00
abstract：PURPOSE:To elucidate the influence of individual socioeconomic status on smoking in Japanese adults. METHODS:Using a nationally representative sample (20,206 men and 21,093 women aged 18 to 54 years), the relation between smoking and socioeconomic characteristics was analyzed by sex and age group (18 to 24, 25 to 39, ...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2004.09.003
更新日期：2005-05-01 00:00:00
abstract：:A cross-sectional analysis of a sample of 3235 males and 2513 females included in a structured framework of case-control studies of various neoplasms conducted in northern Italy assessed the relationship between age at starting smoking and amount of cigarettes smoked per day. Age-standardized proportions of light, mod...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/1047-2797(94)90005-1
更新日期：1994-11-01 00:00:00
abstract：PURPOSE:The mucosa of the small intestine encompasses about 90% of the luminal surface area of the digestive system, but only 2% of the total annual gastrointestinal cancer incidence in the United States. METHODS:The remarkable contrast in age-standardized cancer incidence between the small and large intestine has bee...
journal_title：Annals of epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.annepidem.2008.10.004
更新日期：2009-01-01 00:00:00
abstract：PURPOSE:Cost analyses of tuberculosis (TB) in the United States have not included elements that may be prevented if TB were prevented, such as losses associated with TB-related disability, personal and other costs to society. Unmeasured TB costs lead to underestimates of the benefit of prevention and create conditions ...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2009.09.004
更新日期：2010-01-01 00:00:00
abstract：PURPOSE:The metabolic syndrome (MS) is conceived as a cluster of disorders that increase risk for coronary heart disease and type 2 diabetes. Studies examining its structure primarily have used an exploratory factor analytic technique, but yielded discrepant results. There also is a lack of research that investigates w...
journal_title：Annals of epidemiology
pub_type： 杂志文章
doi：10.1016/j.annepidem.2005.06.049
更新日期：2006-02-01 00:00:00
abstract：PURPOSE:The developmental origins of adult disease hypothesis suggests that the intrauterine environment may program postnatal health outcomes through mechanisms such as chronic inflammation. The purpose of this article was to review the literature on the association between infant birth weight and C-reactive protein (...
journal_title：Annals of epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.annepidem.2015.01.003
更新日期：2015-07-01 00:00:00
