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Dynamic Regression Models for Survival Data
This book studies and applies modern flexible regression models for survival data with a special focus on extensions of the Cox model and alternative models with the specific aim of describing time-varying effects of explanatory variables.
Male reproductive health and environmental xenoestrogens.
The growing number of reports demonstrating that common environmental contaminants and natural factors possess estrogenic activity presents the working hypothesis that the adverse trends in male reproductive health may be, at least in part, associated with exposure to estrogenic or other hormonally active environmental chemicals during fetal and childhood development.
Low Serum Insulin-Like Growth Factor I Is Associated With Increased Risk of Ischemic Heart Disease: A Population-Based Case-Control Study
- A. Juul, T. Scheike, M. Davidsen, J. Gyllenborg, T. Jørgensen
- Medicine, BiologyCirculation
- 20 August 2002
Individuals without IHD but with low circulating IGF-I levels and high IGFBP-3 levels have significantly increased risk of developing IHD during a 15-year follow-up period, suggesting that IGF- I may be involved in the pathogenesis of IHD.
Pubertal development in Danish children: comparison of recent European and US data.
It is believed it is crucial to monitor the pubertal development closely in Denmark in the coming decades as obesity certainly plays a role in the timing of puberty, but the marked differences between Denmark and USA cannot be attributed exclusively to differences in BMI.
Predicting cumulative incidence probability by direct binomial regression
We suggest a new simple approach for estimation and assessment of covariate effects for the cumulative incidence curve in the competing risks model. We consider a semiparametric regression model…
Relation between semen quality and fertility: a population-based study of 430 first-pregnancy planners
Studying time to pregnancy by use of a retrospective design.
- M. Joffe, J. Key, N. Best, N. Keiding, T. Scheike, T. K. Jensen
- MedicineAmerican journal of epidemiology
- 15 July 2005
Rec retrospective TTP studies are reviewed from a methodological viewpoint and it is shown how methodological problems can be avoided or minimized by appropriate study design, conduct, and analysis.
Relation Between Semen Quality and Fertility: A Population-Based Study of 430 First-Pregnancy Planners
Familial Risk and Heritability of Cancer Among Twins in Nordic Countries.
There was significant excess familial risk for cancer overall and for specific types of cancer, including prostate, melanoma, breast, ovary, and uterus, in this long-term follow-up study among Nordic twins.
Oxidative DNA damage in human sperm influences time to pregnancy.
The data suggest that oxidative damage to sperm DNA influences fecundity and the level of damage is relatively constant within an individual and not influenced by smoking.