------------------------------------------------------------------------------------------------ log: C:\WDDtext\log\5.10.EsophagealCa.log log type: text opened on: 13 Jul 2001, 09:29:10 . * 5.10.EsophagealCa.log . * . * Repeat the analysis in 5.9.EsophagealCa.log using . * automatic recoding of the age classification variable . * . use C:\WDDtext\5.5.EsophagealCa.dta, clear . xi: logistic cancer i.age heavy [freq=patients] i.age _Iage_1-6 (naturally coded; _Iage_1 omitted) Logit estimates Number of obs = 975 LR chi2(6) = 200.57 Prob > chi2 = 0.0000 Log likelihood = -394.46094 Pseudo R2 = 0.2027 ------------------------------------------------------------------------------ cancer | Odds Ratio Std. Err. z P>|z| [95% Conf. Interval] -------------+---------------------------------------------------------------- _Iage_2 | 4.675303 4.983382 1.45 0.148 .5787862 37.76602 _Iage_3 | 24.50217 25.06914 3.13 0.002 3.298423 182.0131 _Iage_4 | 40.99664 41.75634 3.65 0.000 5.56895 301.8028 _Iage_5 | 52.81958 54.03823 3.88 0.000 7.111389 392.3155 _Iage_6 | 52.57232 55.99081 3.72 0.000 6.519386 423.9432 heavy | 5.311584 1.007086 8.81 0.000 3.662981 7.702174 ------------------------------------------------------------------------------ . log close log: C:\WDDtext\log\5.10.EsophagealCa.log log type: text closed on: 13 Jul 2001, 09:29:10 ------------------------------------------------------------------------------------------------