August 2009
Intermediate to advanced
648 pages
17h 35m
English
Suppose you transposed the rows and columns of Table 4.7. You would obtain the following:
| Diagnosis | Adverse Effects | Placebo | Dosage1 | Dosage2 | Dosage3 | Dosage4 |
|---|---|---|---|---|---|---|
| I | No | 26 | 26 | 23 | 18 | 9 |
| I | Yes | 6 | 7 | 9 | 14 | 23 |
| II | No | 26 | 12 | 13 | 1 | 1 |
| II | Yes | 6 | 20 | 20 | 31 | 31 |
Furthermore, suppose you analyzed these tables as two 2 × r tables, making the response variable the row variable and the grouping variable the column variable.
proc freq order=data; weight count; tables diagnosis*response*treatment / cmh; tables diagnosis*treatment*response / cmh; run;
Look at the resulting table of Mantel-Haenszel statistics for DIAGNOSIS by RESPONSE by TREATMENT and compare it to the reprinted table of DIAGNOSIS by TREATMENT by RESPONSE.
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