Grandparents’ age and the risk of Down's syndrome in Norway

References

• Penrose LS. Parental age and mutation. Lancet 1955; 2: 312–3
   Web of Science ®Google Scholar
• Newberger DS. Down's syndrome: prenatal risk assessment and diagnosis. Am Fam Physician 2000; 15: 825–32
   Google Scholar
• Hoshi N, Hattori R, Hanatani K, et al. Recent trends in the prevalence of Down's syndrome in Japan. Am J Med Genet 1999; 84: 340–5
   PubMed Web of Science ®Google Scholar
• Olshan AF, Baird PA, Teschke K. Paternal occupational expos ure and the risk of Down's syndrome. Am J Hum Genet 1989; 44: 646–51
   PubMed Web of Science ®Google Scholar
• Meschede D, Albersmann S, Horst J. The practical importance of pedigree analysis in women considering invasive prenatal diagnosis for advanced maternal age or abnormal serum screening tests. Prenat Diagn 2000; 20: 865–9
   PubMed Web of Science ®Google Scholar
• Bahado-Singh R, Deren O, Oz U, et al. An alternative for women initially declining genetic amniocentesis: individual Down's syndrome odds on the basis of maternal age and multiple ultrasonographic markers. Am J Obstet Gynecol 1998; 179: 514–9
   PubMed Web of Science ®Google Scholar
• Kocun CC, Harrigan JT, Canterino JC, Feld SM, Fernandez CO. Prenatal diagnosis of diverse chromosome abnormalities in a population of patients identified by triple-marker testing as screen positive for Down's syndrome. Am J Obstet Gynecol 1995; 173: 496–501
   PubMed Web of Science ®Google Scholar
• Benn PA, Horne D, Briganti S, Greenstein RM. Changing trends in patient decisions concerning genetic amniocentesis. Am J Obstet Gynecol 2000; 182: 1018–20
   PubMed Web of Science ®Google Scholar
• Norgaard-Pedersen B, Larsen SO, Arends J, Svenstrup B, Tabor A. Maternal serum markers in screening for Down's syndrome. Clin Genet 1990; 37: 35–43
   PubMed Web of Science ®Google Scholar
• Nicolaidis P, Petersen MB. Origin and mechanism of non-disjunction in human autosomal trisomies. Hum Reprod 1998; 13: 313–9
   PubMed Web of Science ®Google Scholar
• Aagesen L, Grinsted J, Mikkelsen M. Advanced grandmaternal age on the mother's side – a risk of giving rise to trisomy 21. Ann Hum Genet 1984; 48: 297–301
   PubMed Web of Science ®Google Scholar
• Papp Z, Varadi E, Szabo Z. Grandmaternal age at birth of parents of children with trisomy 21. Hum Genet 1977; 39: 221–4
   PubMed Web of Science ®Google Scholar
• Tarin JJ, Brines J, Cano A. A long-term effects of delayed parenthood. Hum Reprod 1998; 13: 2371–6
   PubMed Web of Science ®Google Scholar
• Fisch H, Hyun G, Golden R, Hensle TW, Olsson CA, Liberson GL. The influence of paternal age on Down's syndrome. J Urol 2003; 169: 2275–8
   PubMed Web of Science ®Google Scholar
• Kazaura MR, Lie RT. Down's syndrome and paternal age in Norway. Paediatr Perinat Epidemiol 2002; 16: 314–9
   PubMed Web of Science ®Google Scholar
• Stoll C, Alembik Y, Dott B, Roth MP. Study of Down's syndrome in 238,942 consecutive births. Ann Genet 1998; 41: 44–51
   PubMedGoogle Scholar
• Roecker GO, Huether CA. An analysis for paternal age effect in Ohio's Down's syndrome births, 1970–1980. Am J Hum Genet 1983; 35: 1297–306
   PubMed Web of Science ®Google Scholar
• Erickson JD, Bjerkedal T. Down's syndrome associated with father's age in Norway. J Med Genet 1981; 18: 22–8
   PubMed Web of Science ®Google Scholar
• Skjaerven R, Wilcox A J, Lie RT. A population-based study of survival and childbearing among females subjects with birth defects and the risk of recurrence in their children. N Engl J Med 1999; 340: 1057–62
   PubMed Web of Science ®Google Scholar
• Lie RT, Wilcox AJ, Skjaerven R. Survival and reproduction among males with birth defects and risk of recurrence in their children. JAMA 2001; 285: 755–60
   PubMed Web of Science ®Google Scholar
• Irgens LM. The Medical Birth Registry of Norway. Epidemiological research and surveillance throughout 30 years. Acta Obstet Gynecol Scand 2000; 79: 435–9
   PubMed Web of Science ®Google Scholar
• Weinberg CR. How bad is categorization?. Epidemiology 1995; 6: 345–7
   PubMed Web of Science ®Google Scholar
• Norusis MJ. SPSS for Windows Advanced Statistics, Version 11.0 (computer program). SPSS Inc., Chicago 2001
   Google Scholar
• Salihu HM, Boos R, Schmidt W. Antenatally detectable mar kers for diagnosis of autosomally trisomic fetuses in at risk pregnancies. Am J Perinatol 1997; 14: 257–61
   PubMed Web of Science ®Google Scholar
• Niazi MA, al Mazyad AS, al Husain MA, et al. Down's syndrome in Saudi Arabia: incidence and cytogenetics. Hum Hered 1995; 45: 65–9
   PubMed Web of Science ®Google Scholar
• O'Leary P, Bower C, Murch A, Crowhurst J, Goldblatt J. The impact of antenatal screening for Down's syndrome in Western Australia: 1989–1994. Aust N Z J Obstet Gynaecol 1996; 36: 385–8
   PubMed Web of Science ®Google Scholar
• Hassold T, Sherman T. Down's syndrome: genetic recombination and the origin of extra chromosomal 21. Clin Genet 2000; 57: 95–100
   PubMed Web of Science ®Google Scholar
• Skjaerven R, Gjessing HK, Bakketeig LS. New standards for birth weight by gestational age using family data. Am J Obstet Gynecol 2000; 183: 689–96
   PubMed Web of Science ®Google Scholar
• Lie RT, Heuch I, Irgens LM. Maximum likelihood estimation of the proportion of congenital malformations using double registration systems. Biomedics 1994; 50: 433–44
   Google Scholar