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st: generalized Wilcoxon-Mann-Whitney ranksum test Interpretation
From
Caliph Omar Moumin <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: generalized Wilcoxon-Mann-Whitney ranksum test Interpretation
Date
Sun, 2 Sep 2012 03:05:29 -0700 (PDT)
I applied vanelteren test to compare two groups(non-alcohol "0"; and alcohol consumers"1"), Th output shows only agegroup, not whether alcohol consumer or not
So how do i interpretatethis output and say something about whether alcohol user has higher median or not
Kind Regards
Caliph
bysort tilstand4 gender: vanelteren LOS, by( alcoholcons) strata( agegroup2)
-------------------------------------------------------------------------------------------------------------------------------------------------------------
-> tilstand4 = A46, gender = Male
Generalized Wilcoxon-Mann-Whitney Ranksum Test (van Elteren's Test)
Variance of
Weighted Expected Weighted
Stratum | n | Ranksum | Ranksum | Ranksum
-------------+-------+-----------+----------+-------------
18-39 | 360 | 174.00 | 173.0 | 1.093
40-59 | 653 | 299.65 | 304.0 | 3.432
60-79 | 616 | 250.93 | 258.0 | 6.908
-------------+-------+-----------+----------+-------------
Sums |1,629 | 724.58 | 735.0 | 11.433
Asymptotic test statistic
z = -3.08
Prob(Z > |z|) = .0021
-------------------------------------------------------------------------------------------------------------------------------------------------------------
-> tilstand4 = A46, gender = Female
Generalized Wilcoxon-Mann-Whitney Ranksum Test (van Elteren's Test)
Variance of
Weighted Expected Weighted
Stratum | n | Ranksum | Ranksum | Ranksum
-------------+-------+-----------+----------+-------------
18-39 | 123 | 58.35 | 59.5 | 0.309
40-59 | 305 | 135.23 | 138.0 | 2.142
60-79 | 518 | 224.00 | 227.5 | 4.565
-------------+-------+-----------+----------+-------------
Sums | 946 | 417.58 | 425.0 | 7.016
Asymptotic test statistic
z = -2.803
Prob(Z > |z|) = .0051
Email: [email protected]
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