Læknablaðið - 01.12.1978, Blaðsíða 40

188
LÆKNABLAÐIÐ
HEIMILDIR
1. Grigor R.R., Hughes GRV. Brit. Med. Journ.
1044, 1976.
2. Hjaltested, Ólú Fundargerðarbók Læknafé-
lagsins Eir 1954.
3. James, G.D., Neville E., Carstairs L.S. Sem.
Arthritis and Rheumatism 6 No 1:53, 1976.
4. Mayock R.L, Bertrand P, Morrison C, Scott
J.H. Am. J. Med. 35:67, 1963.
5. Reiner M., Sigurdsson G., Nunziata V., Malik
M.A., Poole G.W., Joplin G.F.. Brit. Med
J. 2. 1473, 1976.
6. Selroos O. Acta Med. Scand. Supplement 503
1969.
7. Sharma, O.P. Postgrad. Med. 61:67. 1977.
8. Sigfússon N. Hjartavernd. 2:23. 1977.
9. Sigurdsson S. Tuberculosis in Iceland. 68.
U.S.A. Public Health Service Technical
Monograph No 2, 1950.
Læknablaðið — leiðrétting í 3. tbl. 1978
í síðasta tölublaði birtist grein um ald-
ursstöðlun eftir Hrafn Tulinius og Helga
Sigvaldason, (Læknablaðið, Júlí 1978, bls.
133). Vegna mistaka féllu niður textar við
töflur og birtast þeir því hér, ásamt
„summary". Er Iesendum bent á að líma
það aftan við greinina. Greinin í réttu
formi hefur verið sérprentuð og geta þeir
sem óska, fengið eintak sent frá Lækna-
blaðinu eða höfundum. Ritstjórn biður höf-
unda og lesendur afsökunar á mistökunum.
Table II: The figures in these tables are
from Thjodleifsson.10
Table III: The mean population for the
year 1976 is the arithmetic mean of the
number in each age group on December 31,
1975 and December 31, 1976.4 0 Age
specific rate/105 is the number of cases
divided by the mean population multiplied
by 10r>, e.g. age group 80—84.
28/1165 x 105 = 2403.4
Expected number of cases is the age
specific rate/10r> multiplied by standard
population, e.g. age group 80—84
2403.4 x 1000/105 = 24,0
Age standardized rate 105 is the sum of
expected number of cases/105 for all age
groups.
Table V: For each country and sex the
first line lists the first year known, which
is either 1960 or 1961, and the third line
gives the last year known, either 1974 or
1975. The second line gives the highest
mortality rate during the entire period.
Mortality rate standardized to the ,,world“
population is used.
The information on this table is obtained
from the Division of Vital Health Statistics
of the World Health Organization and has
been complied from causes of death reports
from the respective governments.
SUMMARY
Age standardization
The article describes age standardization to a
standard population. It warns against inaccu-
racy of the method and compares it with direct
comparison of age specific rates. It describes
the method of using a standard population for
age standardization and proposes an Icelandic
standard population. This proposal is shown in
Table I and there compared with the „world"
population of Segi.