Self‐selection and bias in a large prospective pregnancy cohort in Norway Tập 23 Số 6 - Trang 597-608 - 2009
Roy M. Nilsen, Stein Emil Vollset, Håkon K. Gjessing, Rolv Skjærven, Kari Klungsøyr, Patricia Schreuder, Elin R. Alsaker, Kjell Haug, Anne Kjersti Daltveit, Per Magnus
SummarySelf‐selection in epidemiological studies may introduce selection bias
and influence the validity of study results. To evaluate potential bias due to
self‐selection in a large prospective pregnancy cohort in Norway, the authors
studied differences in prevalence estimates and association measures between
study participants and all women giving birth in Norway. Women who agreed to
participate... hiện toàn bộ
Necrotising enterocolitis hospitalisations among neonates in the United States Tập 20 Số 6 - Trang 498-506 - 2006
Robert C. Holman, Barbara J. Stoll, Aaron T. Curns, Krista Christensen, Claudia Steiner, Lawrence B. Schonberger
SummaryThe objective of this study was to estimate the rate and describe the
epidemiology of necrotising enterocolitis (NEC) among neonates (infants <1 month
of age) hospitalised in the United States. Hospital discharge records for
neonates with an NEC diagnosis and an in‐hospital death or routine discharge
were selected for analysis from the 2000 Kids’ Inpatient Database. An estimated
4463 (SE = ... hiện toàn bộ
The research implications of the selection of a gestational age estimation method Tập 21 Số s2 - Trang 86-96 - 2007
Courtney D. Lynch, Jun Zhang
SummaryThere are three primary methods of gestational age estimation: dating
based on last menstrual period (LMP), ultrasound‐based dating and neonatal
estimates. We review the strengths and limitations of each method as well as
their implications for research. Dating based on LMP is a simple, low‐cost
method of estimating gestational age. Limitations associated with the use of
menstrual‐based dat... hiện toàn bộ
Timing of puberty in boys and girls: A population‐based study Tập 33 Số 1 - Trang 70-78 - 2019
Nis Brix, Andreas Ernst, Lea Lykke Harrits Lunddorf, Erik Thorlund Parner, Henrik Støvring, Jørn Olsen, Tine Brink Henriksen, Cecilia Høst Ramlau‐Hansen
AbstractBackgroundA secular trend towards earlier puberty has been observed in
girls, while a similar trend has been more uncertain in boys. We estimated
current ages at pubertal development in both boys and girls.MethodsIn this
population‐based cohort study, 14 759 of 22 439 invited boys and girls born from
2000 to 2003 in the Danish National Birth Cohort gave half‐yearly self‐reported
informatio... hiện toàn bộ
Data linkage methods used in maternally‐linked birth and infant death surveillance data sets from the United States (Georgia, Missouri, Utah and Washington State), Israel, Norway, Scotland and Western Australia Tập 11 Số S1 - Trang 5-22 - 1997
Allen Herman, Brian J. McCarthy, Janice Bakewell, Ryk Ward, Beth A. Mueller, Noreen Maconochie, Anne W. Read, Pnina Zadka, Rolv Skj ÃÂlig rven
In this paper we describe the methods used to link birth and infant mortality
and morbidity surveillance data sets into sibships using deterministic or
multistage probabilistic linkage methods. We describe nine linked data sets:
four in the United States (Georgia, Missouri, Utah and Washington State), and
four elsewhere (Scotland, Norway, Israel and Western Australia). Norway and
Israel use determ... hiện toàn bộ
Childhood intelligence in relation to adult coronary heart disease and stroke risk: evidence from a Danish birth cohort study Tập 19 Số 6 - Trang 452-459 - 2005
G. David Batty, Erik Lykke Mortensen, Anne‐Marie Nybo Andersen, Merete Osler
SummaryWhile recent studies have reported an inverse relation between childhood
intelligence test scores and all‐cause mortality in later life, the link with
disease‐specific outcomes has been rarely examined. Furthermore, the potential
confounding effect of birthweight and childhood social circumstances is unknown.
We investigated the relation of childhood intelligence with coronary heart
disease... hiện toàn bộ
Epidemiological approaches to measure childhood stress Tập 26 Số 3 - Trang 280-297 - 2012
Barbara Vanaelst, Tineke De Vriendt, Inge Huybrechts, Sabina Rinaldi, Stefaan De Henauw
SummaryVanaelst B, De Vriendt T, Huybrechts I, Rinaldi S, De Henauw S.
Epidemiological approaches to measure childhood stress. Paediatric and Perinatal
Epidemiology 2012; 26: 280–297.The prevalence of childhood stress has repeatedly
been shown to be high, with ‘parental separation’ and ‘being bullied at school’
as the most frequently reported stressors in the child's everyday life. This is
quite a... hiện toàn bộ
Systematic review of adverse outcomes of external cephalic version and persisting breech presentation at term Tập 20 Số 2 - Trang 163-171 - 2006
Natasha Nassar, Christine L. Roberts, Alexandra Barratt, Jane C. Bell, Emily C. Olive, Brian Peat
SummaryThe aim of this study was to determine the frequency of adverse maternal
and fetal outcomes of both external cephalic version (ECV) and persisting breech
presentation at term. We conducted a systematic review of the literature using
Medline, Embase and All Evidence Based Medicine (EBM) Reviews databases. Data
were extracted from studies that compared women who had an ECV from 36 weeks’
gest... hiện toàn bộ