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Uteroplacental bleeding disorders during pregnancy: do missing paternal characteristics influence risk?

Authors :
Vintzileos Anthony M
Ananth Cande V
Getahun Darios
Source :
BMC Pregnancy and Childbirth, Vol 6, Iss 1, p 2 (2006)
Publication Year :
2006
Publisher :
BMC, 2006.

Abstract

Abstract Background Several studies have assessed the risks of uteroplacental bleeding disorders in relation to maternal characteristics. The association between uteroplacental bleeding disorders and paternal characteristics, however, has received considerably less attention. Data on paternal demographics, notably race and age, from birth certificate data are becoming increasingly incomplete in recent years. This pattern of increasingly underreporting of paternal demographic data led us to speculate that pregnancies for which paternal characteristics are partially or completely missing may be associated with increased risk for uteroplacental bleeding disorders. The objective of this study is to examine the association between placenta previa and placental abruption and missing paternal age and race. Methods A retrospective cohort study using U.S. linked birth/infant death data from 1995 through 2001 (n = 26,336,549) was performed. Risks of placenta previa and placental abruption among: (i) pregnancies with complete paternal age and race data; (ii) paternal age only missing; (iii) paternal race only missing; and (iv) both paternal age and race missing, were evaluated. Relative risk (RR) with 95% confidence interval (CI) for placenta previa and placental abruption by missing paternal characteristics were derived after adjusting for confounders. Results Adjusted RR for placental abruption were 1.30 (95% CI 1.24, 1.37), 1.00 (95% CI 0.95, 1.05), and 1.08 (95% CI 1.06, 1.10) among pregnancies with "paternal age only", "paternal race only", and "both paternal age and race" missing, respectively. The increased risk of placental abruption among the "paternal age only missing" category is partly explained by increased risks among whites aged 20–29 years, and among blacks aged ≥30 years. However, no clear patterns in the associations between missing paternal characteristics and placenta previa were evident. Conclusion Missing paternal characteristics are associated with increased risk of placental abruption, likely mediated through low socio-economic conditions.

Subjects

Subjects :
Gynecology and obstetrics
RG1-991

Details

Language :
English
ISSN :
14712393
Volume :
6
Issue :
1
Database :
Directory of Open Access Journals
Journal :
BMC Pregnancy and Childbirth
Publication Type :
Academic Journal
Accession number :
edsdoj.9710b0eb1b3420287e804661f046eff
Document Type :
article
Full Text :
https://doi.org/10.1186/1471-2393-6-2