Funding
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References
1. Tough, S., et al., What do women know about the risks of delayed childbearing? Can J Public Health, 2006. 97 (4): p. 330-4.
2. Daniluk, J.C. and E. Koert, Childless Canadian men’s and women’s childbearing intentions, attitudes towards and willingness to use assisted human reproduction. Hum Reprod, 2012. 27 (8): p. 2405-12.
3. Lawson, G. and R. Fletcher, Delayed fatherhood. J Fam Plann Reprod Health Care, 2014. 40 (4): p. 283-8.
4. Mills, M., et al., Why do people postpone parenthood? Reasons and social policy incentives. Hum Reprod Update, 2011. 17 (6): p. 848-60.
5. Tough, S., et al., Factors influencing childbearing decisions and knowledge of perinatal risks among Canadian men and women. Matern Child Health J, 2007. 11 (2): p. 189-98.
6. Hammarberg, K. and V.E. Clarke, Reasons for delaying childbearing–a survey of women aged over 35 years seeking assisted reproductive technology. Aust Fam Physician, 2005. 34 (3): p. 187-8, 206.
7. Holton, S., H. Rowe, and J. Fisher, Women’s health and their childbearing expectations and outcomes: a population-based survey from Victoria, Australia. Womens Health Issues, 2011. 21 (5): p. 366-73.
8. Kenny, L.C., et al., Advanced maternal age and adverse pregnancy outcome: evidence from a large contemporary cohort. PLoS One, 2013. 8 (2): p. e56583.
9. Hsieh, T.T., et al., Advanced maternal age and adverse perinatal outcomes in an Asian population. Eur J Obstet Gynecol Reprod Biol, 2010. 148 (1): p. 21-6.
10. Carolan, M.C., et al., Very advanced maternal age and morbidity in Victoria, Australia: a population based study. BMC Pregnancy Childbirth, 2013. 13 : p. 80.
11. Blomberg, M., R. Birch Tyrberg, and P. Kjolhede, Impact of maternal age on obstetric and neonatal outcome with emphasis on primiparous adolescents and older women: a Swedish Medical Birth Register Study. BMJ Open, 2014. 4 (11): p. e005840.
12. Berkowitz, G.S., et al., Delayed childbearing and the outcome of pregnancy. N Engl J Med, 1990. 322 (10): p. 659-64.
13. Buehler, J.W., et al., Maternal mortality in women aged 35 years or older: United States. JAMA, 1986. 255 (1): p. 53-7.
14. Ales, K.L., M.L. Druzin, and D.L. Santini, Impact of advanced maternal age on the outcome of pregnancy. Surg Gynecol Obstet, 1990.171 (3): p. 209-16.
15. Spellacy, W.N., S.J. Miller, and A. Winegar, Pregnancy after 40 years of age. Obstet Gynecol, 1986. 68 (4): p. 452-4.
16. Dildy, G.A., et al., Very advanced maternal age: pregnancy after age 45. Am J Obstet Gynecol, 1996. 175 (3 Pt 1): p. 668-74.
17. Lao, T.T., et al., Advanced maternal age and postpartum hemorrhage - risk factor or red herring? J Matern Fetal Neonatal Med, 2014. 27 (3): p. 243-6.
18. Silver, R.M., Fetal death. Obstet Gynecol, 2007.109 (1): p. 153-67.
19. Bahtiyar, M.O., et al., Stillbirth at term in women of advanced maternal age in the United States: when could the antenatal testing be initiated? Am J Perinatol, 2008. 25 (5): p. 301-4.
20. Sirvinskiene, G., et al., smoking during pregnancy in association with maternal emotional well-being. Medicina (Kaunas), 2016. 52 (2): p. 132-8.
21. Chen, H., P. Cohen, and S. Chen, Biased odds ratios from dichotomization of age. Stat Med, 2007. 26 (18): p. 3487-97.
22. Greenland, S., Avoiding power loss associated with categorization and ordinal scores in dose-response and trend analysis.Epidemiology, 1995. 6 (4): p. 450-4.
23. Royston, P., G. Ambler, and W. Sauerbrei, The use of fractional polynomials to model continuous risk variables in epidemiology. Int J Epidemiol, 1999. 28 (5): p. 964-74.
24. Zhao, L.P. and L.N. Kolonel, Efficiency loss from categorizing quantitative exposures into qualitative exposures in case-control studies. Am J Epidemiol, 1992. 136 (4): p. 464-74.
25. Cleary-Goldman, J., et al., impact of maternal age on obstetric outcome. Obstet Gynecol, 2005. 105 (5 Pt 1): p. 983-90.
26. de Vienne, C.M., C. Creveuil, and M. Dreyfus, Does young maternal age increase the risk of adverse obstetric, fetal and neonatal outcomes: a cohort study. Eur J Obstet Gynecol Reprod Biol, 2009.147 (2): p. 151-6.
27. Delbaere, I., et al., Pregnancy outcome in primiparae of advanced maternal age. Eur J Obstet Gynecol Reprod Biol, 2007.135 (1): p. 41-6.
28. Cnattingius, S., et al., Delayed childbearing and risk of adverse perinatal outcome. A population-based study. JAMA, 1992.268 (7): p. 886-90.
29. Nybo Andersen, A.M., et al., Maternal age and fetal loss: population based register linkage study. BMJ, 2000. 320 (7251): p. 1708-12.
30. Joseph, K.S., et al., The perinatal effects of delayed childbearing. Obstet Gynecol, 2005. 105 (6): p. 1410-8.
31. Ezra, Y., P. McParland, and D. Farine, High delivery intervention rates in nulliparous women over age 35. Eur J Obstet Gynecol Reprod Biol, 1995. 62 (2): p. 203-7.