Trends in the Distribution of Gestational Age and Contribution of Planned Births in New South Wales, Australia

PLoS ONE

Volumn 8, Issue 2, 2013, Pages

  Nassar, Natasha ^a   Schiff, Michal ^a   Roberts, Christine L ^a,b  

^a UNIVERSITY OF SYDNEY   (Australia)

^b ROYAL NORTH SHORE HOSPITAL   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

ADULT; ARTICLE; AUSTRALIA; CESAREAN SECTION; CLINICAL PRACTICE; FEMALE; GESTATIONAL AGE; HUMAN; LABOR INDUCTION; MAJOR CLINICAL STUDY; MULTIPLE PREGNANCY; PERINATAL CARE; PREGNANCY; PREMATURE LABOR; RISK FACTOR; WELLBEING;

ADULT; AGE DISTRIBUTION; AUSTRALIA; CESAREAN SECTION; FEMALE; GESTATIONAL AGE; HUMANS; LABOR, INDUCED; MOTHERS; PREGNANCY; PREGNANCY OUTCOME;

EID: 84874271241     PISSN: None     EISSN: 19326203     Source Type: Journal    
DOI: 10.1371/journal.pone.0056238     Document Type: Article

References (46)

1. Raju TN, Higgins RD, Stark AR, Leveno KJ, (2006) Optimizing care & outcome for late-preterm infants: workshop by National Institute of Child Health. Pediatrics 118: 1207-1214.
2. Mittendorf R, Williams MA, Berkey CS, Cotter PF, (1990) The length of uncomplicated human gestation. Obstet Gynecol 75: 929-932.
3. Lain SJ, Algert CS, Nassar N, Bowen JR, Roberts CL (2011) Incidence of Severe Adverse Neonatal Outcomes: Use of a Composite Indicator in a Population Cohort. Matern Child Health J.
4. Goldenberg RL, Culhane JF, Iams JD, Romero R, (2008) Epidemiology and causes of preterm birth. Lancet 371: 75-84.
5. Laws PJ, Li Z, Sullivan EA (2010) Australia's mothers and babies 2008. Canberra: AIHW.
6. Engle WA, Kominiarek MA, (2008) Late preterm infants, early term infants, and timing of elective deliveries. Clinics in Perinatology 35: 325-341.
7. MacKay DF, Smith GC, Dobbie R, Pell JP, (2010) Gestational age at delivery and special educational need: retrospective cohort study of 407,503 schoolchildren. PLoS Med 7: e1000289.
8. Spong CY, Mercer BM, D'Alton M, Kilpatrick S, Blackwell S, et al. (2011) Timing of indicated late-preterm and early-term birth. Obstet Gynecol 118: 323-333.
9. Declercq E, Menacker F, Macdorman M, (2006) Maternal risk profiles and the primary cesarean rate in the United States, 1991-2002. American Journal of Public Health 96: 867-872.
10. Oshiro BT, Henry E, Wilson J, Branch DW, Varner MW, (2009) Decreasing elective deliveries before 39 weeks of gestation in an integrated health care system. Obstet Gynecol 113: 804-811.
11. Morris JM, Falster MO, Roberts CL, (2012) The impact of increasing planned early birth on maternal and neonatal morbidity: a population-based study Am J Obstet Gynecol. 206(1): S279-S280.
12. Tita ATN, Landon MB, Spong CY, Lai Y, Leveno KJ, et al. (2009) Timing of elective cesarean delivery at term and neonatal outcomes. New England Journal of Medicine 360: 111-120.
13. Clark SL, Miller DD, Belfort MA, Dildy GA, Frye DK, et al. (2009) Neonatal and maternal outcomes associated with elective term delivery. Am J Obstet Gynecol 200: 156 e151-154.
14. Ananth CV, Vintzileos AM (2011) Trends in cesarean delivery at preterm gestation and association with perinatal mortality. Am J Obstet Gynecol 204: 505 e501-508.
15. Joseph KS, Demissie K, Kramer MS, (2002) Obstetric intervention, stillbirth, and preterm birth. Semin Perinatol 26: 250-259.
16. Cheng YW, Kaimal AJ, Bruckner TA, Halloran DR, Caughey AB, (2011) Perinatal morbidity associated with late preterm deliveries compared with deliveries between 37 and 40 weeks of gestation. BJOG 118: 1446-1454.
17. Leone A, Ersfeld P, Adams M, Schiffer PM, Bucher HU, et al. (2012) Neonatal morbidity in singleton late preterm infants compared with full-term infants. Acta Paediatr 101: e6-10.
18. Lisonkova S, Hutcheon JA, Joseph KS, (2011) Temporal trends in neonatal outcomes following iatrogenic preterm delivery. BMC Pregnancy Childbirth 11: 39.
19. Roberts CL, Lancaster PA, (1999) Australian national birthweight percentiles by gestational age. Medical Journal of Australia 170: 114-118.
20. Centre for Epidemiology and Research NSW Department of Health (2010) New South Wales Mothers and Babies 2007. NSW Public Health Bull 21: 1-112.
21. Roberts CL, Tracy S, Peat B, (2000) Rates for obstetric intervention among private and public patients in Australia: population based descriptive study. British Medical Journal 321: 137-141.
22. Davidoff MJ, Dias T, Damus K, Russell R, Bettegowda VR, et al. (2006) Changes in the gestational age distribution among U.S. singleton births: impact on rates of late preterm birth, 1992 to 2002. Semin Perinatol 30: 8-15.
23. NSW Health (2007) Maternity- Timing of Elective or Pre-Labour Caesarean Section_PD2007_024. Sydney, Australia.
24. MacDorman MF, Menacker F, Declercq E, (2008) Cesarean birth in the United States: epidemiology, trends, and outcomes. Clinics in Perinatology 35: 293-307.
25. Stavrou EP, Ford JB, Shand AW, Morris JM, Roberts CL, (2011) Epidemiology and trends for Caesarean section births in New South Wales, Australia. BMC Pregnancy Childbirth 11: 8.
26. Kennare R, Tucker G, Heard A, Chan A, (2007) Risks of adverse outcomes in the next birth after a first cesarean delivery. Obstet Gynecol 109: 270-276.
27. Liu S, Liston RM, Joseph KS, Heaman M, Sauve R, et al. (2007) Maternal mortality and severe morbidity associated with low-risk planned cesarean delivery versus planned vaginal delivery at term. CMAJ 176: 455-460.
28. Spong CY, Landon MB, Gilbert S, Rouse DJ, Leveno KJ, et al. (2007) Risk of uterine rupture and adverse perinatal outcome at term after cesarean delivery. Obstet Gynecol 110: 801-807.
29. Yang Q, Wen SW, Oppenheimer L, Chen XK, Black D, et al. (2007) Association of caesarean delivery for first birth with placenta praevia and placental abruption in second pregnancy. BJOG 114: 609-613.
30. Gronlund MM, Lehtonen OP, Eerola E, Kero P, (1999) Fecal microflora in healthy infants born by different methods of delivery. J Pediatr Gastroenterol Nutr 28: 19-25.
31. Ly NP, Ruiz-Perez B, Onderdonk AB, Tzianabos AO, Litonjua AA, et al. (2006) Mode of delivery and cord blood cytokines: a birth cohort study. Clin Mol Allergy 4: 13.
32. Moore HC, de Klerk N, Holt P, Richmond PC, Lehmann D (2011) Hospitalisation for bronchiolitis in infants is more common after elective caesarean delivery. Arch Dis Child.
33. Roberts CL, Algert CS, Ford JB, Nassar N (2012) Mode of delivery may be the risk factor for infant infectious morbidity. Arch Dis Child.
34. Dodd JM, Crowther CA, Haslam RR, Robinson JS, (2010) Timing of birth for women with a twin pregnancy at term: a randomised controlled trial. BMC Pregnancy Childbirth 10: 68.
35. McLeod L, Barrett J, Hewson S, Hannah ME, (2004) Women's views regarding participation in a proposed randomized controlled trial of twin delivery. J Obstet Gynaecol Can 26: 575-579.
36. Gulmezoglu AM, Crowther CA, Middleton P (2006) Induction of labour for improving birth outcomes for women at or beyond term. Cochrane Database Syst Rev: CD004945.
37. Guise JM, Denman MA, Emeis C, Marshall N, Walker M, et al. (2010) Vaginal birth after cesarean: new insights on maternal and neonatal outcomes. Obstet Gynecol 115: 1267-1278.
38. Crowther CA, Dodd JM, Hiller JE, Haslam RR, Robinson JS, (2012) Planned vaginal birth or elective repeat caesarean: patient preference restricted cohort with nested randomised trial. PLoS Med 9: e1001192.
39. Declercq E, Menacker F, MacDorman M, (2005) Rise in "no indicated risk" primary caesareans in the United States, 1991-2001: cross sectional analysis. BMJ 330: 71-72.
40. Signore C, (2010) No time for complacency: labor inductions, cesarean deliveries, and the definition of "term". Obstetrics & Gynecology 116: 4-6.
41. O'Leary CM, de Klerk N, Keogh J, Pennell C, de Groot J, et al. (2007) Trends in mode of delivery during 1984-2003: can they be explained by pregnancy and delivery complications? BJOG 114: 855-864.
42. Roberts CL, Rowlands IJ, Nguyen M, (2012) The contribution of maternal age to increasing caesarean section rates. Aust N Z J Obstet Gynaecol 52: 308-309.
43. Khambalia A, Nguyen M, Nicholl M, Morris JM, Roberts CL (2012) Comparison between actual date of birth and estimated date of birth using last menstrual period and ultrasound estimates. BJOG (under review).
44. Morin I, Morin L, Zhang X, Platt RW, Blondel B, et al. (2005) Determinants and consequences of discrepancies in menstrual and ultrasonographic gestational age estimates. BJOG 112: 145-152.
45. Kallen K, (2002) Mid-trimester ultrasound prediction of gestational age: advantages and systematic errors. Ultrasound Obstet Gynecol 20: 558-563.
46. Kieler H, Axelsson O, Nilsson S, Waldenstrom U, (1995) The length of human pregnancy as calculated by ultrasonographic measurement of the fetal biparietal diameter. Ultrasound Obstet Gynecol 6: 353-357.