Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 417

The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.

Prevalence of Neurofibromatosis 1 in German Children at Elementary School Enrollment

Lammert, Marga, Friedman, Jan M., Kluwe, Lan, Mautner, Victor F.·2005·Archives of Dermatology

Abstract

OBJECTIVE: To determine the prevalence of neurofibromatosis 1 (NF1) among 6-year-old children in Germany. SETTING AND PATIENTS: A total of 152819 children aged 6 years in 6 German states were screened for NF1 during routine medical examinations at elementary school enrollment in cooperation with local health departments in 2000 and 2001. MAIN OUTCOME MEASURE: The prevalence of NF1 among 6-year-old German children was estimated to be 1:2996 (95% confidence interval, 1:2260 to 1:3984). RESULTS: Fifty-one NF1 cases were identified and confirmed by evaluation by appropriate medical specialists. Seven other children were found to have multiple cafe au lait spots without other apparent features of NF1. A minimum estimate of the crude prevalence was 3.0 per 10 000 (95% confidence interval, 2.3-4.0 per 10 000 population). The incidence of NF1 in this population was probably in the range of 30 to 38 cases per 100 000 live births. CONCLUSION: Our study obtained a nearly unbiased birth incidence of NF1 of approximately 1 in 2600 to 1 in 3000 and demonstrates that NF1 can be diagnosed by age 6 years in most cases by routine physical examination with special attention to the disease-associated skin stigmata.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1001/archderm.141.1.71

Cites

21 of 21 references verified0 citation errors · 0 not checkable

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.

A few free checks a day · papers already verified open instantly · results are public

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

Show all 21 references

Cited by

See all 417

Metadata

Authors
Lammert, M., Friedman, J. M., Kluwe, L., & Mautner, V. F.
Venue
Archives of Dermatology
Published
2005-01-01
Volume
141
Issue
1
Pages
71-4
ISSN
0003-987X (ISSN-L)
OpenAlex
W2142991339
Cited by
417
References
21
FWCI
5.85
Type
journal article
Language
en
Open access
closed

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: Prevalence of Neurofibromatosis 1 in German Children at Elementary School Enrollment. https://app.cochat.ai/papers/10.1001/archderm.141.1.71
The paper
Lammert, M., Friedman, J. M., Kluwe, L., & Mautner, V. F. (2005). Prevalence of Neurofibromatosis 1 in German Children at Elementary School Enrollment. Archives of Dermatology. https://doi.org/10.1001/archderm.141.1.71

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.