Birth weight and childhood leukemia: A meta‐analysis and review of the current evidence

A growing body of evidence suggests that childhood leukemia may be initiated in utero when lymphoid and myeloid cells are not fully differentiated and are particularly susceptible to malignant transformation. A fixed effects meta‐analysis examining the association between birth weight and childhood...

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Veröffentlicht in:International journal of cancer Jg. 124; H. 11; S. 2658 - 2670
Hauptverfasser: Caughey, Robert W., Michels, Karin B.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.06.2009
Wiley-Blackwell
Schlagworte:
Biological and medical sciences
Birth Weight
Child
early life
epidemiology
Female
Hematologic and hematopoietic diseases
Humans
Infant, Newborn
leukemia
Leukemia, Myeloid, Acute - etiology
Leukemias. Malignant lymphomas. Malignant reticulosis. Myelofibrosis
Male
Medical sciences
Precursor Cell Lymphoblastic Leukemia-Lymphoma - etiology
Tumors
Human
leukemia
Acute myelogenous leukemia
early life
Malignant hemopathy
Epidemiology
Metaanalysis
Cancerology
Lymphoproliferative syndrome
Risk factor
Birth weight
Acute lymphocytic leukemia
Child
Public health
Bibliographic review
Cancer
ISSN:0020-7136, 1097-0215, 1097-0215
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Zusammenfassung:A growing body of evidence suggests that childhood leukemia may be initiated in utero when lymphoid and myeloid cells are not fully differentiated and are particularly susceptible to malignant transformation. A fixed effects meta‐analysis examining the association between birth weight and childhood leukemia was conducted including 32 studies and 16,501 cases of all types of leukemia (OL), 10,974 cases of acute lymphoblastic leukemia (ALL), and 1,832 cases of acute myeloid leukemia (AML). The odd ratios (OR) for the association of high birth weight with OL, ALL and AML were 1.35 (95% CI: 1.24, 1.48), 1.23 (95% CI: 1.15, 1.32), and 1.40 (95% CI: 1.11, 1.76), respectively, compared with normal birth weight. Low birth weight was not associated with overall and ALL leukemia, but with AML (OR = 1.50; 95% CI: 1.05, 2.13). Per 1000 g increase in birth weight, the OR for OL was 1.18 (95% CI: 1.13, 1.23) and ALL 1.18 (95% CI: 1.12, 1.23). The combined available evidence from observational studies suggests that high birth weight is associated with an increased risk of overall leukemia and ALL. For AML the risk may be elevated at both high and low extremes of birth weight, suggesting a U‐shaped association. © 2008 Wiley‐Liss, Inc.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
ObjectType-Review-3
content type line 23
ISSN:0020-7136
1097-0215
1097-0215
DOI:10.1002/ijc.24225