Evidence map›Paper›PMID 29974300›Full record

ArticleJournal of autism and developmental disorders2018

California Autism Prevalence Trends from 1931 to 2014 and Comparison to National ASD Data from IDEA and ADDM.

Cynthia Nevison, Mark Blaxill, Walter Zahorodny

Open access · hybridAbstract read
In one paragraph

Article in Journal of autism and developmental disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Prenatal exposure to wildfire-related PMEnvironment international · 2026
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  7. The Neuroimmunology of Autism.Molecular neurobiology · 2025
    Review
  8. Article
  9. Review
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  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Elective Deliveries and the Risk of Autism.American journal of preventive medicine · 2022
    Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 1 country.

Cynthia NevisonInstitute for Alpine and Arctic Research, University of Colorado, Campus Box 450, Boulder, CO, 80309-0450, USA. Cynthia.Nevison@colorado.edu.
Mark BlaxillHealth Choice, Cambridge, MA, USA.
Walter ZahorodnyRutgers University - New Jersey Medical School, Newark, NJ, USA.
Health Choice Network · USInstitute of Arctic and Alpine Research · USRutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Time trends in U.S. autism prevalence from three ongoing datasets [Individuals with Disabilities Education Act, Autism and Developmental Disabilities Monitoring Network, and California Department of Developmental Services (CDDS)] are calculated using two different methods: (1) constant-age tracking of 8 year-olds and (2) age-resolved snapshots. The data are consistent across methods in showing a strong upward trend over time. The prevalence of autism in the CDDS dataset, the longest of the three data records, increased from 0.001% in the cohort born in 1931 to 1.2% among 5 year-olds born in 2012. This increase began around ~ 1940 at a rate that has gradually accelerated over time, including notable change points around birth years 1980, 1990 and, most recently, 2007.

Indexed as

Autistic DisorderCaliforniaChildDevelopmental DisabilitiesFemaleHumansMalePopulation SurveillancePrevalenceADDMASD prevalenceAutism spectrum disorderAutistic disorderCDDSIDEATime trends

Identifiers

PMID29974300
PMCPMC6223814
OpenAlexW2856553042

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.