-------------------------------------------------------------------------------------------------
       log:  C:\MyDocs\MPH\Text\SecondEdition\WebDoFiles\5.5.EsophagealCa.log
  log type:  text
 opened on:  30 Dec 2007, 20:54:21

. *  5.5.EsophagealCa.log
. *
. *  Calculate the Mantel-Haenszel age-adjusted odds ratio from
. *  the Ille-et-Vilaine study of esophageal cancer and alcohol.
. *
. use C:\WDDtext\5.5.EsophagealCa.dta, clear

. table  cancer heavy [freq=patients]

----------------------------
          |  Heavy Alcohol  
Esophagea |   Consumption   
l Cancer  |  < 80 g  >= 80 g
----------+-----------------
       No |     666      109
      Yes |     104       96
----------------------------

. table  cancer heavy [freq=patients], by(age)

----------------------------
Age       |
(years)   |
and       |  Heavy Alcohol  
Esophagea |   Consumption   
l Cancer  |  < 80 g  >= 80 g
----------+-----------------
25-34     |
       No |     106        9
      Yes |                1
----------+-----------------
35-44     |
       No |     164       26
      Yes |       5        4
----------+-----------------
45-54     |
       No |     138       29
      Yes |      21       25
----------+-----------------
55-64     |
       No |     139       27
      Yes |      34       42
----------+-----------------
65-74     |
       No |      88       18
      Yes |      36       19
----------+-----------------
>= 75     |
       No |      31         
      Yes |       8        5
----------------------------

. cc heavy cancer [freq=patients], by(age)

     Age (years) |       OR       [95% Conf. Interval]   M-H Weight
-----------------+-------------------------------------------------
           25-34 |          .             0          .            0 (exact)
           35-44 |   5.046154      .9268668   24.86537     .6532663 (exact)
           45-54 |   5.665025      2.632894   12.16535     2.859155 (exact)
           55-64 |   6.359477      3.299319   12.28473     3.793388 (exact)
           65-74 |   2.580247      1.131489   5.857258     4.024845 (exact)
           >= 75 |          .      4.388738          .            0 (exact)
-----------------+-------------------------------------------------
           Crude |   5.640085      3.937435   8.061794              (exact)
    M-H combined |   5.157623      3.562131   7.467743              
-------------------------------------------------------------------
Test of homogeneity (Tarone)   chi2(5) =     9.30  Pr>chi2 = 0.0977

                   Test that combined OR = 1:
                                Mantel-Haenszel chi2(1) =     85.01
                                                Pr>chi2 =    0.0000

. log close
       log:  C:\MyDocs\MPH\Text\SecondEdition\WebDoFiles\5.5.EsophagealCa.log
  log type:  text
 closed on:  30 Dec 2007, 20:54:27
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