1. Heazell AEP, Newman L, Lean SC, Jones RL. Pregnancy outcome in mothers over the age of 35. Curr Opin Obstet Gynecol. 2018 Dec;30(6):337-343. [DOI:10.1097/GCO.0000000000000494] [PMID]

2. Khalil A, Syngelaki A, Maiz N, Zinevich Y, Nicolaides KH. Maternal age and adverse pregnancy outcome: a cohort study. Ultrasound Obstet Gynecol. 2013;42(6):634-43. [DOI:10.1002/uog.12494] [PMID]

3. Goetzinger KR, Shanks AL, Odibo AO, Macones GA, Cahill AG. Advanced Maternal Age and the Risk of Major Congenital Anomalies. Am J Perinatol. 2017;34(3):217-22. [DOI:10.1055/s-0036-1585410] [PMID]

4. Kim YJ, Lee JE, Kim SH, Shim SS, Cha DH. Maternal age-specific rates of fetal chromosomal abnormalities in Korean pregnant women of advanced maternal age. Obstet Gynecol Sci. 2013;56(3):160-6. [DOI:10.5468/ogs.2013.56.3.160] [PMID] []

5. Laopaiboon M, Lumbiganon P, Intarut N, et al. Advanced maternal age and pregnancy outcomes: a multicountry assessment. BJOG 2014; 121(Suppl1):49-56. [DOI:10.1111/1471-0528.12659] [PMID]

6. Carolan M. Maternal age ≥45 years and maternal and perinatal outcomes: a review of the evidence. Midwifery. 2013 May;29(5):479-89. doi: 10.1016/j.midw.2012.04.001. [DOI:10.1016/j.midw.2012.04.001] [PMID]

7. Rahman MM, Abe SK, Kanda M, Narita S, Rahman MS, Bilano V, Ota E, Gilmour S, Shibuya K. Maternal body mass index and risk of birth and maternal health outcomes in low- and middle-income countries: a systematic review and meta-analysis. Obes Rev. 2015;16(9):758-70. [DOI:10.1111/obr.12293] [PMID]

8. Lamminpää R, Vehviläinen-Julkunen K, Gissler M, Selander T, Heinonen S. Pregnancy outcomes of overweight and obese women aged 35 years or older - A registry-based study in Finland. Obes Res Clin Pract. 2016 .10(2):133-42. [DOI:10.1016/j.orcp.2015.05.008] [PMID]

9. Naeye RL. Maternal age, obstetric complications, and the outcome of pregnancy. Obstet Gynecol. 1983;61(2):210-6.

10. Fitzpatrick KE, Tuffnell D, Kurinczuk JJ, Knight M. Pregnancy at very advanced maternal age: a UK population-based cohort study. Bjog. 2017;124(7):1097-106. [DOI:10.1111/1471-0528.14269] [PMID] []

11. Seifu BL, Tebeje TM, Asgedom YS, Asmare ZA, Asebe HA, Kase BF, Shibeshi AH, Sabo KG, Fente BM, Mare KU. Determinants of high-risk fertility behavior among women of reproductive age in Kenya: a multilevel analysis based on 2022 Kenyan demographic and health survey. BMC Public Health. 2023. 15;23(1):2516. [DOI:10.1186/s12889-023-17459-w] [PMID] []

12. Fadaei B, Movahedi M, Akbari M, Ghasemi M, Jalalvand A. Effect of Maternal Age on Pregnancy Outcome. Journal of Isfahan Medical School. 2011;29.

13. Kortekaas JC, Kazemier BM, Keulen JKJ, Bruinsma A, Mol BW, Vandenbussche F, et al. Risk of adverse pregnancy outcomes of late- and postterm pregnancies in advanced maternal age: A national cohort study. Acta Obstet Gynecol Scand. 2020;99(8):1022-30. [DOI:10.1111/aogs.13828] [PMID] []

14. Creatsas G, Goumalatsos N, Deligeoroglou E, Karagitsou T, Calpaktsoglou C, Arefetz N. Teenage pregnancy: Comparsion with two groups of older pregnant women. Journal of adolescent health. 1991;12(2):77-81. [DOI:10.1016/0197-0070(91)90447-T] [PMID]

15. Lao TT, Ho LF. The obstetric implications of teenage pregnancy. Hum Reprod. 1997;12(10):2303-5. [DOI:10.1093/humrep/12.10.2303] [PMID]

16. Ziadeh S. Obstetric outcome of teenage pregnancies in North Jordan. Arch Gynecol Obstet. 2001;265(1):26-9. [DOI:10.1007/s004040000121] [PMID]

17. Waldenström U, Ekéus C. Risk of labor dystocia increases with maternal age irrespective of parity: a population-based register study. Acta Obstet Gynecol Scand. 2017;96(9):1063-9. [DOI:10.1111/aogs.13167] [PMID]

18. Bayrampour H, Heaman M. Advanced maternal age and the risk of cesarean birth: a systematic review. Birth. 2010;37(3):219-26. [DOI:10.1111/j.1523-536X.2010.00409.x] [PMID]

19. Bianco A, Stone J, Lynch L, Lapinski R, Berkowitz G, Berkowitz RL. Pregnancy outcome at age 40 and older. Obstet Gynecol. 1996;87(6):917-22. [DOI:10.1016/0029-7844(96)00045-2] [PMID]

20. Roberts CL, Algert CS, Carnegie M, Peat B. Operative delivery during labour: trends and predictive factors. Paediatr Perinat Epidemiol. 2002;16(2):115-23. [DOI:10.1046/j.1365-3016.2002.00409.x] [PMID]

21. Lavecchia M, Sabbah M, Abenhaim HA. Effect of Planned Mode of Delivery in Women with Advanced Maternal Age. Matern Child Health J. 2016;20(11):2318-27. [DOI:10.1007/s10995-016-2055-4] [PMID]

22. Sheen JJ, Wright JD, Goffman D, Kern-Goldberger AR, Booker W, Siddiq Z, et al. Maternal age and risk for adverse outcomes. Am J Obstet Gynecol. 2018;219(4):390.e1-.e15. [DOI:10.1016/j.ajog.2018.08.034] [PMID]

23. Ervin RB. Prevalence of metabolic syndrome among adults 20 years of age and over, by sex, age, race and ethnicity, and body mass index: United States, 2003-2006. Natl Health Stat Report. 2009(13):1-7.

24. Yogev Y, Melamed N, Bardin R, Tenenbaum-Gavish K, Ben-Shitrit G, Ben-Haroush A. Pregnancy outcome at extremely advanced maternal age. Am J Obstet Gynecol. 2010;203(6):558.e1-7. [DOI:10.1016/j.ajog.2010.07.039] [PMID]

25. Miller DA, Chollet JA, Goodwin TM. Clinical risk factors for placenta previa-placenta accreta. Am J Obstet Gynecol. 1997;177(1):210-4. [DOI:10.1016/S0002-9378(97)70463-0] [PMID]

26. Cnattingius S, Forman MR, Berendes HW, Isotalo L. Delayed childbearing and risk of adverse perinatal outcome. A population-based study. Jama. 1992;268(7):886-90. [DOI:10.1001/jama.1992.03490070068044] [PMID]

27. Reddy UM, Ko CW, Willinger M. Maternal age and the risk of stillbirth throughout pregnancy in the United States. Am J Obstet Gynecol. 2006;195(3):764-70. [DOI:10.1016/j.ajog.2006.06.019] [PMID]

28. Benli AR, Cetin Benli N, Usta AT, Atakul T, Koroglu M. Effect of maternal age on pregnancy outcome and cesarean delivery rate. J Clin Med Res. 2015;7(2):97-102. [DOI:10.14740/jocmr1904w] [PMID] []