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M9550185.TXT
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1995-03-04
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Document 0185
DOCN M9550185
TI Maternal factors associated with perinatal HIV-1 transmission: the
French Cohort Study: 7 years of follow-up observation. The French
Pediatric HIV Infection Study Group.
DT 9505
AU Mayaux MJ; Blanche S; Rouzioux C; Le Chenadec J; Chambrin V; Firtion G;
Allemon MC; Vilmer E; Vigneron NC; Tricoire J; et al; Hopital Kremlin
Bicetre, France.
SO J Acquir Immune Defic Syndr Hum Retrovirol. 1995 Feb 1;8(2):188-94.
Unique Identifier : AIDSLINE MED/95135997
AB A nationwide, longitudinal study of infants born to human
immunodeficiency virus-seropositive mothers has been under way in France
since 1986. After 7 years of follow-up observations, we will update our
assessment of the transmission rate in France and analyze, on a larger
number of mother-infant pairs, the influence of maternal factors. Among
the 848 pairs included in this analysis, the transmission rate was 20.2
+/- 2.7%. The transmission rate has remained stable with time and was
not influenced by the mode of delivery, the mode of maternal infection,
or the mother's ethnic origin. It was twice as high among the breast-fed
infants as among the bottle-fed infants (40 vs. 19%, p < 0.04). Two
factors were identified in a multivariate analysis (that did not include
lymphocyte subset counts and the mode of feeding) as being associated
with an increased risk of maternofetal transmission: p24 antigenemia
(odds ratio = 3.1, confidence interval, = 1.5-6.2; p < 0.003) and
elevated maternal age (p < 0.05). In the subgroup of 277 women whose
absolute CD4+ lymphocyte counts at the time of delivery were available,
the risk of transmission increased gradually from 15% of counts of > 600
CD4+ cells to 43% at counts of < 200. The risk of transmission was also
related to the percentage of CD8+ cells, but each of the two factors
seemed to play an independent role: the risk was lowest (12%) when the
CD4+ cell count was > 500 and the proportion of CD8+ cells was < or =
40%, and was highest (50%) for values < 200 and > 40%.(ABSTRACT
TRUNCATED AT 250 WORDS)
DE Adult Child Child, Preschool CD4 Lymphocyte Count CD8-Positive
T-Lymphocytes *Disease Transmission, Vertical Female France Human
HIV Infections/CLASSIFICATION/EPIDEMIOLOGY/*TRANSMISSION HIV
Seropositivity/DIAGNOSIS *HIV-1 Infant Infant, Newborn Longitudinal
Studies Multivariate Analysis Pregnancy Risk Factors Support,
Non-U.S. Gov't JOURNAL ARTICLE MULTICENTER STUDY
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).