The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Skin test reactivity and number of siblings
Open accessAbstract
Objective : To investigate the relation between skin test reactivity in children and number of siblings. Design : Cross sectional survey among school-children aged 9-11 years. Skin prick tests in the children and self completion of written questionnaire by their parents. Subjects : 5030 children in Munich and 2623 children in Leipzig and Halle, Germany. Main outcome measures : Atopic status assessed by skin prick tests. Results : After possible confounders were controlled for, the prevalence of atopic sensitisation decreased linearly with increasing number of siblings (odds ratio=0.96 for one sibling, 0.67 for five or more siblings; P=0.005). In atopic children the severity of the skin test reaction as assessed by the weal size was not associated with the number of siblings. Conclusions : Factors directly or indirectly related to the number of siblings may decrease the susceptibility of children to become atopic. Thus, declining family size may in part contribute to the increased prevalence of atopic diseases reported in Western countries over the past few decades.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Hay fever, hygiene, and household size.
Strachan, D. P. (1989) · BMJ · doi:10.1136/bmj.299.6710.1259 · Cited by 5,054
Cited by
The Inverse Association Between Tuberculin Responses and Atopic Disorder
Shirakawa, T., Enomoto, T., Shimazu, S.-I., & Hopkin, J. M. (1997) · Science · doi:10.1126/science.275.5296.77 · Cited by 1,287
Allergy development and the intestinal microflora during the first year of life
Björkstén, B., Sepp, E., Julge, K., Voor, T., & Mikelsaar, M. (2001) · Journal of Allergy and Clinical Immunology · doi:10.1067/mai.2001.118130 · Cited by 1,203
Family size, infection and atopy: the first decade of the 'hygiene hypothesis'
Strachan, D. (2000) · Thorax · doi:10.1136/thorax.55.suppl_1.s2 · Cited by 1,183
Reduced risk of hay fever and asthma among children of farmers
Ehrenstein, V., Mutius, V., Illi, Baumann, Böhm, & Kries, V. (2000) · Clinical & Experimental Allergy · doi:10.1046/j.1365-2222.2000.00801.x · Cited by 718
Gender differences in airway behaviour over the human life span
Becklake, M. R., & Kauffmann, F. (1999) · Thorax · doi:10.1136/thx.54.12.1119 · Cited by 698
Metadata
- Authors
- von Mutius, E., Martinez, F. D., Fritzsch, C., Nicolai, T., Reitmeir, P., & Thiemann, H.-H.
- Venue
- BMJ
- Publisher
- BMJ
- Published
- 1994-03-12
- Volume
- 308
- Issue
- 6930
- Pages
- 692-695
- ISSN
- 0007-1447 (ISSN-L)
- 0959-8138
- 1468-5833
- OpenAlex
- W2051812762
- Cited by
- 482
- References
- 1
- FWCI
- 8.86
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Skin test reactivity and number of siblings. https://app.cochat.ai/papers/10.1136/bmj.308.6930.692
- The paper
- von Mutius, E., Martinez, F. D., Fritzsch, C., Nicolai, T., Reitmeir, P., & Thiemann, H.-H. (1994). Skin test reactivity and number of siblings. BMJ. https://doi.org/10.1136/bmj.308.6930.692
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.