TY - JOUR
T1 - Duration of human immunodeficiency virus infection and likelihood of giving birth in a medicaid population in Maryland
AU - Lee, Lisa M.
AU - Wortley, Pascale M.
AU - Fleming, Patricia L.
AU - Eldred, Lois J.
AU - Gray, Ronald H.
N1 - Funding Information:
This research was supported by grant S2-15/15-CPS96-006 through an Association of Schools of Public Health (Conyers, Georgia) Public Health System Fellowship (Dr. Lee) and by grant 5P30HD06268 from the National Institute of Child Health and Human Development (Bethesda, Maryland) through the Hopkins Population Center (Baltimore, Maryland) (Dr. Gray). Data and work space for this project were provided by the AIDS Administration of the Maryland Department of Health and Mental Hygiene (Baltimore, Maryland).
PY - 2000/5/15
Y1 - 2000/5/15
N2 - The objective of this study was to examine the effect of duration of human immunodeficiency virus (HIV) infection on a woman's likelihood of giving birth. Using longitudinal data from the Maryland state Human Immunodeficiency Virus Information System and a retrospective cohort design, the authors compared 1,642 women with acquired immunodeficiency syndrome (AIDS) to 8,443 uninfected women enrolled in the Medicaid program between 1985 and 1995. The decade before AIDS diagnosis was divided into four 2.5-year periods. Proximity to AIDS diagnosis served as a proxy for duration of infection. An extension of the Cox model was used to estimate the relative risk for giving birth, with adjustment for covariates and repeated outcomes. The average number of births per 100 person-years was 6.0 for HIV-infected women and 11.1 for uninfected women (adjusted relative risk = 0.63; 95% confidence interval (CI): 0.57, 0.68). Accounting for duration of infection, the adjusted relative risks for birth among HIV-infected women, as compared with uninfected women, were 0.85 (95% CI: 0.71, 1.03), 0.74 (95% CI: 0.63, 0.86), 0.55 (95% CI: 0.47, 0.64), and 0.45 (95% CI: 0.38, 0.55) for successive 2.5-year periods before AIDS diagnosis. Demographic characteristics, contraception, abortion, fetal loss, or drug use could not fully explain the reductions. These results suggest that HIV-infected women experience a progressive reduction in births years before the onset of AIDS. This may compromise estimation of HIV prevalence and interpretation of time trends from serosurveillance of pregnant women.
AB - The objective of this study was to examine the effect of duration of human immunodeficiency virus (HIV) infection on a woman's likelihood of giving birth. Using longitudinal data from the Maryland state Human Immunodeficiency Virus Information System and a retrospective cohort design, the authors compared 1,642 women with acquired immunodeficiency syndrome (AIDS) to 8,443 uninfected women enrolled in the Medicaid program between 1985 and 1995. The decade before AIDS diagnosis was divided into four 2.5-year periods. Proximity to AIDS diagnosis served as a proxy for duration of infection. An extension of the Cox model was used to estimate the relative risk for giving birth, with adjustment for covariates and repeated outcomes. The average number of births per 100 person-years was 6.0 for HIV-infected women and 11.1 for uninfected women (adjusted relative risk = 0.63; 95% confidence interval (CI): 0.57, 0.68). Accounting for duration of infection, the adjusted relative risks for birth among HIV-infected women, as compared with uninfected women, were 0.85 (95% CI: 0.71, 1.03), 0.74 (95% CI: 0.63, 0.86), 0.55 (95% CI: 0.47, 0.64), and 0.45 (95% CI: 0.38, 0.55) for successive 2.5-year periods before AIDS diagnosis. Demographic characteristics, contraception, abortion, fetal loss, or drug use could not fully explain the reductions. These results suggest that HIV-infected women experience a progressive reduction in births years before the onset of AIDS. This may compromise estimation of HIV prevalence and interpretation of time trends from serosurveillance of pregnant women.
KW - Acquired immunodeficiency syndrome
KW - Birth rate
KW - Fertility
KW - HIV
KW - Pregnancy
KW - Women
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U2 - 10.1093/oxfordjournals.aje.a010130
DO - 10.1093/oxfordjournals.aje.a010130
M3 - Article
C2 - 10853641
AN - SCOPUS:0034656924
SN - 0002-9262
VL - 151
SP - 1020
EP - 1028
JO - American journal of epidemiology
JF - American journal of epidemiology
IS - 10
ER -