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Cited by 425

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Acute Respiratory Tract Infections and Mannose-Binding Lectin Insufficiency During Early Childhood

Koch, Anders·2001·JAMA

Abstract

CONTEXT: Hospital-based studies have found that increased susceptibility to certain infections is associated with low serum levels of mannose-binding lectin (MBL) due to MBL variant alleles. However, the contribution of MBL insufficiency to incidence of common childhood infections at a population level is unknown. OBJECTIVE: To investigate the effect of MBL insufficiency on risk for acute respiratory tract infection (ARI) in unselected children younger than 2 years. DESIGN AND SETTING: Population-based, prospective, cohort study conducted in Sisimiut, Greenland. PARTICIPANTS: Two hundred fifty-two children younger than 2 years who were followed up weekly between August 1996 and August 1998 for morbidity surveillance. MAIN OUTCOME MEASURE: Risk of ARI, based on medical history and clinical examination, compared by MBL genotype, determined from blood samples based on presence of structural and promoter alleles. RESULTS: A 2.08-fold (95% confidence interval [CI], 1.41-3.06) increased relative risk (RR) of ARI was found in MBL-insufficient children (n = 13) compared with MBL-sufficient children (n = 239; P<.001). The risk association was largely restricted to children aged 6 to 17 months (RR, 2.92; 95% CI, 1.78-4.79) while less effect (RR, 1.47; 95% CI, 0.45-4.82) and no effect (RR, 1.00; 95% CI, 0.42-2.37) was shown among children aged 0 to 5 months and 18 to 23 months, respectively. CONCLUSION: These data suggest that genetic factors such as MBL insufficiency play an important role in host defense, particularly during the vulnerable period of childhood from age 6 through 17 months, when the adaptive immune system is immature.

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Metadata

Authors
Koch, A.
Venue
JAMA
Published
2001-03-14
Volume
285
Issue
10
Pages
1316
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2171120557
Cited by
425
References
23
FWCI
8.43
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Acute Respiratory Tract Infections and Mannose-Binding Lectin Insufficiency During Early Childhood. https://app.cochat.ai/papers/10.1001/jama.285.10.1316
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Koch, A. (2001). Acute Respiratory Tract Infections and Mannose-Binding Lectin Insufficiency During Early Childhood. JAMA. https://doi.org/10.1001/jama.285.10.1316

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