Kramer, M.S., Wilkins, R., Gouletf, L., Séguinf, L., Lydonc, J., Kahnd, S.R., McNamarae, H., Dassaf, C., Dahhoua, M., Masseh, A., Minere, L., Asselinh, G., Gauthierf, H., Ghanemf, A., Benjamine, A. and Platta, R.W. (2009) Investigating Socio-Economic Disparities in Preterm Birth: Evidence for Selective Study Participation and Selection Bias. Paediatric and Perinatal Epidemiology, 23, 301-309.
http://dx.doi.org/10.1111/j.1365-3016.2009.01042.x

has been cited by the following article:

• TITLE: Application of Survival Analysis in Studies of Human Ontogeny

  AUTHORS: Magdalena Kosińska, Anita Szwed

  KEYWORDS: Ontogenetic Events, Birth, Menarche, Menopause, Kaplan-Meier Method, Cox’s Proportional Hazard Model

  JOURNAL NAME: Applied Mathematics, Vol.5 No.11, June 20, 2014

  ABSTRACT: The main goal of this work is to demonstrate the suitability of survival analysis for ontogenetic studies. The research material includes retrospective data of the age of the occurrence of ontogenetic events such as birth (N = 487), menarche (N = 2016) and menopause (N = 3597). In order to study the time of occurrence of ontogenetic events and to indicate the impact of environmental factors the survival analysis was applied. First, the percentiles of functions established for studied events were calculated. Next, the Kaplan-Meier survival curves were derived. In the last step theinfluence of environmental factors was established and the comparison of groups determined based on the chosen factors was performed. The delivery time shows that 14% of infants were bornpreterm. The risk of preterm delivery increases with the severity of factors disrupting pregnancy (from none to coexisting maternal and fetal risk factors) (; p ; p th and the 52nd years of life. The time of menopause occurrence is significantly depended on both of considered factors: the educational level and smoking cigarettes (, p