Table 2.

Comparison of epidemiologic studies of ALS standardized to 1996 Irish population and using 45–74 age band

CountryYearsStudy typeRate*95% CI
MFTotal
* Incidence per 100,000 person-years for the 45–74 age band, directly age- and gender-adjusted to the 1996 Irish population.
† Age band 50–79 used for comparison.
‡ Mortality study.
Middle Finland211976–1981Retrospective7.69.08.46.5–10.6
USA (Rochester, MN)41925–1987Retrospective7.06.16.55.0–8.3
Ireland1995–1997Prospective6.75.36.05.1–6.9
Northern Sweden291969–1980Retrospective8.13.85.94.6–7.8
Canada (Ontario)281978–1982Retrospective6.64.75.54.0–7.4
USA (WA)21990–1995Prospective5.65.15.33.9–7.0
Scotland11989Prospective6.43.54.93.6–6.5
USA (TX)201985–1988Retrospective3.53.43.52.4–4.9
Ireland61968–1977Mortality3.51.92.71.7–3.9
1978–1987Mortality5.03.64.33.1–5.9
Denmark341974–1986Retrospective5.13.74.33.1–6.1
Sweden (Värmland)91974–1981Retrospective5.33.34.33.1–5.9
Israel121959–1974Pre 1970, Retrospective; post 1970, Register3.11.62.41.4–3.7
Italy (Sardinia)81965–1974Retrospective3.01.52.31.3–3.6