The Definition and Prevalence of Autism

The results of the studies of the prevalence of autism are summarised in Tables I to S. Each is identified by the name of the area in which it was carried out. The authors of the papers, the full names of the areas studied, and the abbreviations of these names used in the tables are listed below, in the order in which they appear in the tables:
- Lotter (1966; 1967a; 1967b) Middlesex, England (Midx)
- Brask (1972) Aarhus, Denmark (Aarh)
- Wing & Gould (1979) Camberwell, London, England (Camb)
- Hoshino et al.(1982) Fukushima-ken, Japan(Fuma)
- Bohman et al. (1983) Västerbotten, Sweden(Väst)
- Cialdella & Mamelle (1989) Rhône, France(Rhôn)
- Matsuishi et al. (1987) Kurume, Japan (Kuru)
- Tanoue et al. (1988) Ibaraki, Japan (Ibar)
- Sugiyania & Abe (1989) Nagoya, Japan (Nago)
- Burd et al. (1987) North Dakota, USA (NDak)
- Ritvo et al. (1989) Utah, USA (Utah)
- Gillberg (1984) Göteborg region, Sweden (Göt1)
- Steffenburg & Gillberg (1986) Göteborg city, Sweden (Göt 2)
- Bryson et al. (1988) Nova Scotia, Canada (NoSc)
- Gillberg et al. (1991) Göteborg city, Sweden (Göt 3)
- Ishii & Takahashi (1983) Toyota, Japan (Toyo)
For the studies in Fukushima, the Rhône, and Utah, the authors gave reasons for considering that the rates found for particular age groups within the total range studied were the most accurate. The findings for these age groups are given in Tables 1 and 2. For the second and third studies in Göteborg the authors also gave rates separately for rural Bohuslän, but only the findings for city Göteborg are quoted in Tables 1 and 2. However, for all these studies, the data in Table 5 refer to all the children finally diagnosed as autistic because, for some of the papers, this was the only information given.

Source: http://www.mugsy.org/wing.htm