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A prospective cohort study of infertility and cancer incidence
Fertility and Sterility, 2023To investigate the association between infertility and the incidence of invasive cancer.Prospective cohort study (1989-2015).Not applicable.A total of 103,080 women aged 25-42 years in the Nurses' Health Study II who were cancer-free at baseline (1989).The infertility status (failure to conceive after 1 year of regular, unprotected sex) and causes of ...
Siwen Wang +9 more
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Prospective studies on a lithium cohort
Acta Psychiatrica Scandinavica, 1988ABSTRACTSince 1979, patients started on long‐term lithium treatment at the Psychiatric Hospital in Risskov have been followed systematically with recording of clinical and laboratory variables before the start of treatment, after 6 and 12 months of treatment, and thereafter at yearly intervals. By June 1987, 480 examinations had been carried out before
P, Vestergaard, M, Schou
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Pain and disability retirement: A prospective cohort study
Pain, 2012This study examined the association of pain with subsequent disability retirement due to all causes as well as musculoskeletal diseases, mental disorders, and a heterogeneous group of other diseases and to study whether pain has an effect of its own after taking into account long-standing illness, physician-diagnosed diseases, working conditions, and ...
Lahelma Eero +11 more
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A prospective cohort study of the effect of vincristine on audition
Anti-Cancer Drugs, 1996We conducted a prospective cohort study of the possible ototoxic effect of vincristine among patients treated for lymphoproliferative malignancies. No deleterious effect of moderate doses of vincristine on pure tone audiometry for air and bone conduction and on speech audiometry could be found.
G, Lugassy, A, Shapira
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Prospective and Retrospective Cohort Studies
2019Cohort studies are a type of observational study that follows samples of at-risk individuals forward in time to examine associations between measured exposures and future outcomes. Cohort studies have an essential role in evidence-based surgery.
Ramy Behman, Lev Bubis, Paul Karanicolas
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Blood-based tests for multicancer early detection (PATHFINDER): a prospective cohort study
The Lancet, 2023Deb Schrag +10 more
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The association of hysterectomy and menopause: a prospective cohort study
BJOG: An International Journal of Obstetrics & Gynaecology, 2005Objective To determine whether or not hysterectomy leads to an earlier onset of the menopause.Design A prospective cohort study.Setting Gynaecology service of large urban hospital.Population Premenopausal women with and without hysterectomy.Methods Multivariate survival analysis techniques were used to adjust for differences in initial follicle ...
Farquhar, Cynthia +3 more
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Methadone and perinatal outcomes: a prospective cohort study
Addiction, 2012ABSTRACTAims Methadone use in pregnancy has been associated with adverse perinatal outcomes and neonatal abstinence syndrome (NAS). This study aimed to examine perinatal outcomes and NAS in relation to (i) concomitant drug use and (ii) methadone dose.Design Prospective cohort study.Setting Two tertiary care maternity hospitals.Participants A total ...
Cleary, Brian J +11 more
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Bias in observational study designs: prospective cohort studies
BMJ, 2014The Women’s Health Initiative Observational Study, a prospective cohort study, was designed to investigate causes of morbidity and mortality in postmenopausal women. In total, 93 676 women aged 50-79 years were recruited at 40 clinical centres throughout the United States between 1993 and 1998.
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