Abstract
Objective:
The objective of this study is to determine the prevalence of placenta previa among different racial and ethnic groups.
Study Design:
We conducted a retrospective cohort study to examine the prevalence of placenta previa among five major racial and ethnic groups: African American, Asian, Caucasian, Hispanic and Native American. We included all deliveries ⩾20 weeks gestation from a large northern Californian Health Maintenance Organization from 1995–2006. A multivariable logistic regression model was used to control for potential confounders.
Result:
Of the 394 083 deliveries in our cohort, 1580 (0.40%) were complicated by placenta previa. The prevalence of placenta previa was: Asian 0.64%, Native American 0.60%, African American 0.44%, Caucasian 0.36%, Hispanic 0.34% and unknown 0.31% (P<0.001). In our multivariable logistic regression model, only Asians (odds ratio (OR) 1.73, 95% confidence intervals (CI) 1.53–1.95) and African Americans (OR 1.43, 95% CI 1.19–1.72) were at increased risk for having placenta previa, compared with Caucasians.
Conclusion:
Asian women have the highest prevalence of placenta previa.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Faiz AS, Ananth CV . Etiology and risk factors for placenta previa: an overview and meta-analysis of observational studies. J Matern Fetal Neonatal Med 2003; 13 (3): 175–190.
Iyasu S, Saftlas AK, Rowley DL, Koonin LM, Lawson HW, Atrash HK . The epidemiology of placenta previa in the United States, 1979 through 1987. Am J Obstet Gynecol 1993; 168 (5): 1424–1429.
Ananth CV, Smulian JC, Vintzileos AM . The effect of placenta previa on neonatal mortality: a population-based study in the United States, 1989 through 1997. Am J Obstet Gynecol 2003; 188 (5): 1299–1304.
Sheiner E, Shoham-Vardi I, Hallak M, Hershkowitz R, Katz M, Mazor M . Placenta previa: obstetric risk factors and pregnancy outcome. J Matern Fetal Med 2001; 10 (6): 414–419.
McShane PM, Heyl PS, Epstein MF . Maternal and perinatal morbidity resulting from placenta previa. Obstet Gynecol 1985; 65 (2): 176–182.
Zlatnik MG, Cheng YW, Norton ME, Thiet MP, Caughey AB . Placenta previa and the risk of preterm delivery. J Matern Fetal Neonatal Med 2007; 20 (10): 719–723.
Silver RM, Landon MB, Rouse DJ, Leveno KJ, Spong CY, Thom EA et al. Maternal morbidity associated with multiple repeat cesarean deliveries. Obstet Gynecol 2006; 107 (6): 1226–1232.
Zhang J, Savitz DA . Maternal age and placenta previa: a population-based, case-control study. Am J Obstet Gynecol 1993; 168 (2): 641–645.
Williams MA, Mittendorf R, Lieberman E, Monson RR, Schoenbaum SC, Genest DR . Cigarette smoking during pregnancy in relation to placenta previa. Am J Obstet Gynecol 1991; 165 (1): 28–32.
Allen C, Bowdin S, Harrison RF, Sutcliffe AG, Brueton L, Kirby G et al. Pregnancy and perinatal outcomes after assisted reproduction: a comparative study. Ir J Med Sci 2008; 177 (3): 233–241.
Ananth CV, Demissie K, Smulian JC, Vintzileos AM . Placenta previa in singleton and twin births in the United States, 1989 through 1998: a comparison of risk factor profiles and associated conditions. Am J Obstet Gynecol 2003; 188 (1): 275–281.
Ananth CV, Smulian JC, Vintzileos AM . The association of placenta previa with history of cesarean delivery and abortion: a metaanalysis. Am J Obstet Gynecol 1997; 177 (5): 1071–1078.
Yang Q, Wen SW, Phillips K, Oppenheimer L, Black D, Walker MC . Comparison of maternal risk factors between placental abruption and placenta previa. Am J Perinatol 2009; 26 (4): 279–286.
Taylor VM, Peacock S, Kramer MD, Vaughan TL . Increased risk of placenta previa among women of Asian origin. Obstet Gynecol 1995; 86 (5): 805–808.
Yang Q, Wu Wen S, Caughey S, Krewski D, Sun L, Walker MC . Placenta previa: its relationship with race and the country of origin among Asian women. Acta Obstet Gynecol Scand 2008; 87 (6): 612–616.
Shen JJ, Tymkow C, MacMullen N . Disparities in maternal outcomes among four ethnic populations. Ethn Dis Summer 2005; 15 (3): 492–497.
Healy AJ, Malone FD, Sullivan LM, Porter TF, Luthy DA, Comstock CH et al. Early access to prenatal care: implications for racial disparity in perinatal mortality. Obstet Gynecol 2006; 107 (3): 625–631.
Zhang J, Fried DB . Relationship of maternal smoking during pregnancy to placenta previa. Am J Prev Med 1992; 8 (5): 278–282.
Sauer M, Parsons M, Sampson M . Placenta previa: an analysis of three years experience. Am J Perinatol 1985; 2 (1): 39–42.
Brenner WE, Edelman DA, Hendricks CH . Characteristics of patients with placenta previa and results of ‘expectant management’. Am J Obstet Gynecol 1978; 132 (2): 180–191.
Rathore SS, McMahon MJ . Racial variation in the frequency of intrapartum hemorrhage. Obstet Gynecol 2001; 97 (2): 178–183.
McMahon MJ, Li R, Schenck AP, Olshan AF, Royce RA . Previous cesarean birth. A risk factor for placenta previa? J Reprod Med 1997; 42 (7): 409–412.
Chelmow D, Andrew DE, Baker ER . Maternal cigarette smoking and placenta previa. Obstet Gynecol 1996; 87 (5 part 1): 703–706.
Menon R . Spontaneous preterm birth, a clinical dilemma: etiologic, pathophysiologic and genetic heterogeneities and racial disparity. Acta Obstet Gynecol Scand 2008; 87 (6): 590–600.
Rao AK, Daniels K, El-Sayed YY, Moshesh MK, Caughey AB . Perinatal outcomes among Asian American and Pacific Islander women. Am J Obstet Gynecol 2006; 195 (3): 834–838.
Acknowledgements
This study was supported by Kaiser Foundation Research Institute Community Benefits Grant.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Competing interests
The authors declare no conflict of interest.
Additional information
Supplementary Information accompanies the paper on the Journal of Perinatology website
Supplementary information
Rights and permissions
About this article
Cite this article
Kim, L., Caughey, A., Laguardia, J. et al. Racial and ethnic differences in the prevalence of placenta previa. J Perinatol 32, 260–264 (2012). https://doi.org/10.1038/jp.2011.86
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/jp.2011.86
Keywords
This article is cited by
-
Iron deficiency anaemia associated with increased placenta praevia and placental abruption: a retrospective case-control study
European Journal of Clinical Nutrition (2022)
-
Risk Factors for Shoulder Dystocia: the Impact of Mother’s Race and Ethnicity
Journal of Racial and Ethnic Health Disparities (2018)