Oral contraceptives and ovulatory causes of delayed fertility.

abstract：:Gallstones and cholecystectomy may be related to digestive system cancer through inflammation, altered bile flux, and changes in metabolic hormone levels. Although gallstones are recognized causes of gallbladder cancer, associations with other cancers of the digestive system are poorly established. We used the Surveil...

journal_title：American journal of epidemiology

authors： Nogueira L,Freedman ND,Engels EA,Warren JL,Castro F,Koshiol J

更新日期：2014-03-15 00:00:00

abstract：:The authors present a computer program for hypothesis testing and calculation of exact binomial confidence intervals for the adjusted relative risk in follow-up studies involving multiple strata with incidence density (person-time) denominators and small or zero person-count numerators. The program is an extension to ...

journal_title：American journal of epidemiology

authors： Guess HA,Lydick EG,Small RD,Miller LP

更新日期：1987-02-01 00:00:00

abstract：:The health status of 1025 urban senior citizens in a Montreal metropolitan area was determined by a questionnaire based on the subjects' view of physical, mental, and general well-being, and of dependence (indicators of Belloc et al., Berkman, Grogono and Woodgate, and Linn). A principal component analysis was made of...

journal_title：American journal of epidemiology

authors： Jenicek M,Cléroux R,Lamoureux M

更新日期：1979-09-01 00:00:00

abstract：:The relationship of social status and behavior type to the incidence of coronary heart disease was examined among husbands and wives in the Framingham Heart Study. Between 1965 and 1967, 269 spouse pairs, in which the husbands were 45-64 years of age, were administered an extensive psychosocial questionnaire. These pa...

journal_title：American journal of epidemiology

authors： Haynes SG,Eaker ED,Feinleib M

更新日期：1983-07-01 00:00:00

abstract：:Evidence from epidemiologic and experimental studies suggests that use of nonsteroidal antiinflammatory drugs (NSAIDs) reduces risk of colon and breast cancer. The association between use of aspirin and other NSAIDs and risk of adult glioblastoma multiforme (GBM) was evaluated among 236 incident GBM cases and 401 popu...

journal_title：American journal of epidemiology

authors： Sivak-Sears NR,Schwartzbaum JA,Miike R,Moghadassi M,Wrensch M

更新日期：2004-06-15 00:00:00

abstract：:A number of prospective cohort studies have examined the relations of individual dietary variables to risk of colorectal cancer. Few studies have addressed the broader eating patterns that reflect many dietary exposures working together. Using data from a prospective study of 61,463 women, with an average follow-up pe...

journal_title：American journal of epidemiology

authors： Terry P,Hu FB,Hansen H,Wolk A

更新日期：2001-12-15 00:00:00

abstract：:Epidemiologic studies have demonstrated that physical inactivity is an important determinant of numerous chronic diseases. However, self-reported estimates of physical activity contain measurement errors responsible for attenuating relative risk estimates. A validation study conducted in 2002-2003 at the Alberta Cance...

journal_title：American journal of epidemiology

authors： Ferrari P,Friedenreich C,Matthews CE

更新日期：2007-10-01 00:00:00

abstract：:The evolving concept of gender-based violence (GBV) is a multifaceted issue of public health significance. Until recently, most studies examining GBV have been conducted in North America. In this issue of the Journal, Palermo et al. (Am J Epidemiol. 2014;179(5):602-612) report their secondary analyses involving approx...

journal_title：American journal of epidemiology

authors： Beydoun HA,Beydoun MA

更新日期：2014-03-01 00:00:00

abstract：:An inverse association between socioeconomic status, as measured by years of education, and blood pressure has been reported in a number of studies. However, two secular trends may have changed the nature of this relation: a higher mean level of education in the population and intervention for high blood pressure in t...

journal_title：American journal of epidemiology

authors： Sorel JE,Ragland DR,Syme SL,Davis WB

更新日期：1992-06-15 00:00:00

abstract：:The relation between death from acute myocardial infarction and the level of magnesium in drinking water was examined using mortality registers and a case-control design. The study area comprised 17 municipalities in the southern part of Sweden that have different magnesium levels in the drinking water. Cases were men...

journal_title：American journal of epidemiology

authors： Rubenowitz E,Axelsson G,Rylander R

更新日期：1996-03-01 00:00:00

abstract：:Androgens have an extensive influence on brain development in regions of the brain that are relevant for autism spectrum disorder (ASD), yet their etiological involvement remains unclear. Hypospadias (abnormal positioning of the urethral opening) and cryptorchidism (undescended testes) are 2 relatively common male bir...

journal_title：American journal of epidemiology

authors： Rotem RS,Chodick G,Davidovitch M,Hauser R,Coull BA,Weisskopf MG

更新日期：2018-04-01 00:00:00

abstract：:What is the influence of various methods of handling missing data (complete case analyses, single imputation within and over trials, and multiple imputations within and over trials) on the subgroup effects of individual patient data meta-analyses? An empirical data set was used to compare these five methods regarding ...

journal_title：American journal of epidemiology

authors： Koopman L,van der Heijden GJ,Grobbee DE,Rovers MM

更新日期：2008-03-01 00:00:00

abstract：:A community sample made in the fall of 1972 in Durham County, North Carolina, and that consisted of 331 persons 65 years of age and older was assessed for adequacy of social support along three parameters: roles and available attachments, perceived social support, and frequency of social interaction. This approach to ...

journal_title：American journal of epidemiology

authors： Blazer DG

更新日期：1982-05-01 00:00:00

abstract：:To develop a method for assessing preclinical cardiovascular disease risk, models of resting cardiovascular regulation and of insulin metabolic syndrome were derived from information collected from 1991 to 1996 in a culturally heterogeneous sample of 319 healthy men and women (aged 25-44 years) from Miami-Dade County,...

journal_title：American journal of epidemiology

authors： Goldstein RZ,Hurwitz BE,Llabre MM,Schneiderman N,Gutt M,Skyler JS,Prineas RJ,Donahue RP

更新日期：2001-10-15 00:00:00

abstract：:The authors examined the association between age at menarche, menstrual cycle characteristics between ages 28 and 32 years, and peri- and postmenopausal fracture risk in a cohort of 874 women who prospectively recorded menstrual cycle data for at least 5 years from their early 20s through their menopause. Fracture his...

journal_title：American journal of epidemiology

authors： Cooper GS,Sandler DP

更新日期：1997-05-01 00:00:00

abstract：:During a three-week period in 1984, 339 tourists and expatriate employees with diarrhea visited the infirmary at a Caribbean resort club. Epidemiologic studies suggested that over 60% of the 1,893 tourists at the resort club during that time may have been ill. Shigella flexneri 4a was isolated from seven of 18 stool s...

journal_title：American journal of epidemiology

authors： Spika JS,Dabis F,Hargrett-Bean N,Salcedo J,Veillard S,Blake PA

更新日期：1987-12-01 00:00:00

abstract：:To investigate the effect of aluminum and silica in drinking water on the risk of dementia and Alzheimer's disease, the authors analyzed data from a large prospective cohort (Paquid), including 3,777 subjects aged 65 years and over living at home in 75 civil parishes in Gironde and Dordogne in southwestern France in 1...

journal_title：American journal of epidemiology

authors： Rondeau V,Commenges D,Jacqmin-Gadda H,Dartigues JF

更新日期：2000-07-01 00:00:00

abstract：:Regression equations, based on scutal index (body length/scutal width), were developed to determine the duration of attachment for nymphal and adult female lxodes scapularis ticks. Feeding times were calculated for 444 nymphal and 300 female ticks submitted by bite victims between 1985 and 1989 in Westchester County, ...

journal_title：American journal of epidemiology

authors： Falco RC,Fish D,Piesman J

更新日期：1996-01-15 00:00:00

abstract：:Anal cancer has been hypothesized to be associated with a sexually transmitted agent and, more recently, with the epidemic of human immunodeficiency virus (HIV). The authors used a descriptive incidence study to evaluate these hypotheses based on US data from the Surveillance, Epidemiology, and End Results (SEER) prog...

journal_title：American journal of epidemiology

authors： Melbye M,Rabkin C,Frisch M,Biggar RJ

更新日期：1994-04-15 00:00:00

abstract：:The age-specific prevalence of hepatitis A antibodies has been analyzed using a catalytic epidemic model for populations in seven European countries: West Germany, Norway, Greece, Switzerland, Holland, France and Sweden. The results indicate a significant decline in the force of infection in recent decades. However, t...

journal_title：American journal of epidemiology

authors： Schenzle D,Dietz K,Frösner GG

更新日期：1979-07-01 00:00:00

abstract：:Vital statistics data on mortality from malignant melanoma from five countries are simultaneously fit by the method of cohort analysis. After the effects of geographic and temporal trends are removed, the proportion of deaths occurring in the younger age groups is found to be higher in females than in males. Relative ...

journal_title：American journal of epidemiology

authors： Venzon DJ,Moolgavkar SH

更新日期：1984-01-01 00:00:00

abstract：:From 610 blood samples collected in September 1983 in an intervention trial in Huixian, Henan Province, People's Republic of China, which were individually analyzed for retinol, beta-carotene, and alpha-tocopherol levels, 10 pools were formed from 50 individual samples, and the vitamin levels in the merged pools were ...

journal_title：American journal of epidemiology

authors： Wahrendorf J,Hanck AB,Muñoz N,Vuilleumier JP,Walker AM

更新日期：1986-03-01 00:00:00

abstract：:The authors present results from a novel approach to understanding recent secular trends in overweight in terms of changes in underlying component distributions. On the basis of an examination of two large overlapping samples of Danish young men (ns = 16,557 and 21,747) spanning birth cohorts 1939-1958, the authors fo...

journal_title：American journal of epidemiology

authors： Price RA,Ness R,Sørensen TI

更新日期：1991-03-01 00:00:00

abstract：:The proportion of parents aged ≥35 years at the birth of their child continues to increase, but long-term health consequences for these children are not fully understood. A recent prospective study of 110,999 adult women showed an association between paternal-but not maternal-age at birth and sporadic hematological ca...

journal_title：American journal of epidemiology

authors： Teras LR,Gaudet MM,Blase JL,Gapstur SM

更新日期：2015-07-01 00:00:00

abstract：:Simulation studies using susceptible-infectious-recovered models were conducted to estimate individuals' risk of infection and time to infection in small-world and randomly mixing networks. Infection transmitted more rapidly but ultimately resulted in fewer infected individuals in the small-world, compared with the ra...

journal_title：American journal of epidemiology

authors： Christley RM,Pinchbeck GL,Bowers RG,Clancy D,French NP,Bennett R,Turner J

更新日期：2005-11-15 00:00:00

abstract：:Evidence for a relation between physical activity and renal cell cancer has been inconsistent. The authors examined physical activity in relation to renal cell cancer in a large, prospective US cohort study of 482,386 participants (289,503 men and 192,883 women) aged 50-71 years at baseline (1995-1996). At baseline, p...

journal_title：American journal of epidemiology

authors： Moore SC,Chow WH,Schatzkin A,Adams KF,Park Y,Ballard-Barbash R,Hollenbeck A,Leitzmann MF

更新日期：2008-07-15 00:00:00

abstract：:Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation, and the period between disease initiation and detection. A disease cannot be characterized as having a long or short induction period, except in relation to a specific etiologic ...

journal_title：American journal of epidemiology

authors： Rothman KJ

更新日期：1981-08-01 00:00:00

abstract：:We determined measurement properties of the Sedentary Time and Activity Reporting Questionnaire (STAR-Q), which was designed to estimate past-month activity energy expenditure (AEE). STAR-Q validity and reliability were assessed in 102 adults in Alberta, Canada (2009-2011), who completed 14-day doubly labeled water (D...

journal_title：American journal of epidemiology

authors： Csizmadi I,Neilson HK,Kopciuk KA,Khandwala F,Liu A,Friedenreich CM,Yasui Y,Rabasa-Lhoret R,Bryant HE,Lau DC,Robson PJ

更新日期：2014-08-15 00:00:00

abstract：:The adrenal steroid dehydroepiandrosterone (DHEA) and its sulfate (DHEAS) have been characterized as "protective" against ischemic heart disease (IHD), especially in men, on the basis of sparse epidemiologic evidence. The authors used data from the Massachusetts Male Aging Study, a random sample prospective study of 1...

journal_title：American journal of epidemiology

authors： Feldman HA,Johannes CB,Araujo AB,Mohr BA,Longcope C,McKinlay JB

更新日期：2001-01-01 00:00:00

abstract：:A new measure of lifetime alcohol consumption, the Cognitive Lifetime Drinking History (CLDH) uses beverage-specific questions on drink sizes and assesses drinking patterns to enhance recall. Two methods of establishing drinking intervals were examined: 1) floating--the respondent's report of when drinking changed, an...

journal_title：American journal of epidemiology

authors： Russell M,Marshall JR,Trevisan M,Freudenheim JL,Chan AW,Markovic N,Vána JE,Priore RL

更新日期：1997-12-01 00:00:00