I am interested in comparing some study data I have with some published
data. Both studies have five groups of decedents -- sudden, cancer, organ,
frail, other. Is there an extension of ANOVA that will let me compare ages
of these groups? I find -contrasi-, which seems to do a one-way comparison
among the ages (given the Ns, means, and SDs), e.g.,
contrasi 495 73 7.2 \ 1571 77 4.2 \ 1185 80 6.8 \ 3376 83 5.5 \ 631 83 7.0
contrasi 1279 74.3 4.1 \ 6369 76.8 6.4 \ 4478 79.0 6.6 \ 2423 79.8 6.7
\1533 79.1 7.0
or, similarly, there is -aovsum-
aovsum, n(495 1571 1185 3376 631) m(73 77 80 83 83) sd(7.2 4.2 6.8 5.5 7.0)
and I can put all 10 groups in at once, but the comparison between studies
is not evident because there are no post hoc pairwise comparisons. Should I
do five immediate t-tests (-ttesti-) and then adjust for simultaneous
comparisons? Or should I stick to unquantified observations ("the ages of
the groups in the two studies appeared to be similar...")? Or--?
Thank you,
Laurel
Laurel A Copeland, PhD
VA Ann Arbor Health System
(734) 769-7100 x6206
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