Lotter | Epidemiology of Autistic Conditions in Young Children | 1966 | England | County of Middlesex | 8 to 10 | 1964 | survey (mail); health records | Kanner | 78000 | 35 | 0.45 | 0.32 - 0.62 | 2.6 | | | | | | 84 | | 59 | | autistic conditions | https://link.springer.com/article/10.1007/BF00584048 | IQ Score <70 (%); CI |
Treffert | Epidemiology of infantile Autism | 1970 | USA | Wisconsin | 2 to 12 | 1962-1967 | health records | Kanner | 899750 | 69 | 0.077 | 0.06 - 0.10 | 3.1 | | | | | | | | | | classic infantile autism | https://www.ncbi.nlm.nih.gov/pubmed/5436867 | CI |
Brask | A Prevalence investigation of Childhood Psychoses | 1972 | Denmark | Ă…arhus County | 2 to 14 | 1962 | health records; service provider records | clinical interpretation | 46500 | 20 | 0.43 | 0.28 - 0.66 | 1.7 | | | | | | | | | | autistic syndrome | | CI |
Wing, et al. | The prevalence of early childhood autism: comparison of administrative and epidemiological studies | 1976 | England | Camberwall | 5 to 14 | 1974 | registry; survey (unspecified) | clinical interpretation | 25000 | 12 | 4.48 | 0.27 - 0.84 | | | | | | | | | | | early childhood autism | https://pubmed.ncbi.nlm.nih.gov/935299/ | CI |
Wing, et al. | Severe impairments of social interaction and associated abnormalities in children: Epidemiology and classification | 1979 | England | Camberwell | 0 to 14 | 1970 | registry; service provider records | Kanner; clinical interpretation | 35000 | 17 | 0.49 | 0.30 - 0.78 | | | | | | | 70 | | 59 | 0 (Down syndrome) | autism | https://www.ncbi.nlm.nih.gov/pubmed/155684 | IQ Score <70 (%); CI |
Hoshino, et al. | The epidemiological study of autism in Fukushima-ken | 1982 | Japan | Fukushima-ken | 0 to 17 | 1977-1979 | survey (mail) | Kanner | 609848 | 320 | 0.525 | 0.47 - 0.59 | 9.9 | | | | | | | | | | early infantile autism, autistic mental retardation | https://www.ncbi.nlm.nih.gov/pubmed/7129258 | prevalence estimate; CI |
Bohman, et al. | Childhood psychosis in a northern Swedish county: Some preliminary findings from an epidemiological survey | 1983 | Sweden | Västerbotten County | 0 to 20 | 1979 | survey (mail) | Rutter; clinical interpretation | 69000 | 39 | 0.56 | 0.41 - 0.77 | 1.6 | | | | | | | | | | early infantile autism | | CI |
McCarthy, et al. | Prevalence of childhood autism in Ireland. | 1984 | Ireland | East | 8 to 10 | 1979 | survey (mail) | Kanner | 65000 | 28 | 0.43 | 0.30 - 0.62 | 1.3 | | | | | | | | 54 | | childhood autism | https://www.ncbi.nlm.nih.gov/pubmed/6610668 | CI |
Gillberg | Infantile autism and other child psychoses in a Swedish urban region | 1984 | Sweden | Gothenburg | 4 to 18 | 1980 | survey (unspecified) | clinical interpretation | 128584 | 26 | 0.2 | 0.16 - 0.32 | 3.3 | | | | | | 77 | | | 19 (epilepsy) | infantile autism | https://www.ncbi.nlm.nih.gov/pubmed/6607262 | CI; IQ Score <70 (%) |
Steinhausen, et al. | A community survey of infantile autism | 1986 | Germany | West Berlin | 0 to 14 | 1978-1982 | health records | Rutter | 279616 | 52 | 0.19 | 0.14 - 0.24 | 2.3 | | | | | | 44 | | | | infantile autism | https://www.ncbi.nlm.nih.gov/pubmed/3486202 | CI |