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       log:  C:\MyDocs\MPH\Text\SecondEdition\WebDoFiles\8.2.Framingham.log
  log type:  text
 opened on:   8 Jan 2008, 13:05:03

. *  8.2.Framingham.log                
. *
. *  Estimate the crude (unadjusted) relative risk of 
. *  coronary heart disease in men compared to women using 
. *  person-year data from the Framingham Heart Study.
. *
. iri 823 650 42688 61773

                 |   Exposed   Unexposed  |      Total
-----------------+------------------------+------------
           Cases |       823         650  |       1473
     Person-time |     42688       61773  |     104461
-----------------+------------------------+------------
                 |                        |
  Incidence Rate |  .0192794    .0105224  |    .014101
                 |                        |
                 |      Point estimate    |    [95% Conf. Interval]
                 |------------------------+------------------------
 Inc. rate diff. |          .008757       |    .0072113    .0103028 
 Inc. rate ratio |         1.832227       |    1.651137    2.033836 (exact)
 Attr. frac. ex. |         .4542162       |    .3943566    .5083183 (exact)
 Attr. frac. pop |         .2537814       |
                 +-------------------------------------------------
                     (midp)   Pr(k>=823) =                   0.0000 (exact)
                     (midp) 2*Pr(k>=823) =                   0.0000 (exact)

. log close
       log:  C:\MyDocs\MPH\Text\SecondEdition\WebDoFiles\8.2.Framingham.log
  log type:  text
 closed on:   8 Jan 2008, 13:05:03
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