Results 31 to 40 of about 44,936,151 (395)

Combining longitudinal studies of PSA [PDF]

open access: yesBiostatistics, 2004
Prostate-specific antigen (PSA) is a biomarker commonly used to screen for prostate cancer. Several studies have examined PSA growth rates prior to prostate cancer diagnosis. However, the resulting estimates are highly variable. In this article we propose a non-linear Bayesian hierarchical model to combine longitudinal data on PSA growth from three ...
Christopher H. Morrell   +4 more
openaire   +3 more sources

Can Interviewer Observations of the Interview Predict Future Response?

open access: yesMethoden, Daten, Analysen, 2017
Interviewers made four observations related to future participation, respondent cooperation, enjoyment and whether the respondent found the questions difficult, for a large sample of face-to-face interviews at wave four of the UK Millennium Cohort Study (
Ian Plewis   +2 more
doaj   +1 more source

Using linked administrative data to aid the handling of non-response and restore sample representativeness in cohort studies: the 1958 national child development study and hospital episode statistics data

open access: yesBMC Medical Research Methodology, 2023
Background There is growing interest in whether linked administrative data have the potential to aid analyses subject to missing data in cohort studies. Methods Using linked 1958 National Child Development Study (NCDS; British cohort born in 1958, n = 18,
Nasir Rajah   +5 more
doaj   +1 more source

A Theoretical Extension of the Technology Acceptance Model: Four Longitudinal Field Studies

open access: yesManagement Sciences, 2000
The present research develops and tests a theoretical extension of the Technology Acceptance Model (TAM) that explains perceived usefulness and usage intentions in terms of social influence and cognitive instrumental processes.
V. Venkatesh, Fred D. Davis
semanticscholar   +1 more source

Understanding Society: design overview [PDF]

open access: yes, 2011
Understanding Society, the UK Household Longitudinal Study, builds on the success of the British Household Panel Survey (BHPS). This paper describes some of the key elements of the design and conduct of the study and suggests how Understanding Society is
Buck, N, McFall, SL
core   +2 more sources

A systematic review on health resilience to economic crises [PDF]

open access: yes, 2015
Background The health effects of recent economic crises differ markedly by population group. The objective of this systematic review is to examine evidence from longitudinal studies on factors influencing resilience for any health outcome or health ...
Glonti, Ketevan   +6 more
core   +5 more sources

Ankle‐Brachial Index and Energy Production in People Without Peripheral Artery Disease: The BLSA

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Lower ankle‐brachial index (ABI) values within the 0.90 to 1.40 range are associated with poorer mitochondrial oxidative capacity of thigh muscles in cross‐sectional analyses.
Matt T. Oberdier   +9 more
doaj   +1 more source

Estimating correlation between multivariate longitudinal data in the presence of heterogeneity [PDF]

open access: yes, 2017
Background Estimating correlation coefficients among outcomes is one of the most important analytical tasks in epidemiological and clinical research. Availability of multivariate longitudinal data presents a unique opportunity to assess joint evolution ...
Beiser, Julia A   +6 more
core   +3 more sources

Sex Differences in Longitudinal Determinants of Carotid Intima Medial Thickening With Aging in a Community‐Dwelling Population: The Baltimore Longitudinal Study on Aging

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Common carotid intima medial thickness (IMT) increases with aging. However, the longitudinal association between IMT and other age‐associated hemodynamic alterations in men and in women are not fully explored.
Ajoy C. Karikkineth   +7 more
doaj   +1 more source

Gender differences in suicidal behavior in adolescents and young adults: systematic review and meta-analysis of longitudinal studies

open access: yesInternational Journal of Public Health, 2019
ObjectivesTo assess the association between gender and suicide attempt/death and identify gender-specific risk/protective factors in adolescents/young adults. MethodsSystematic review (5 databases until January 2017).
Andrea Miranda-Mendizabal   +17 more
semanticscholar   +1 more source

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