response: (chd2=='1') 
covariates: dsmoker 
SNP: MIA3_MG_454 
Call:
coxph(formula = y[notmissing] ~ allele[notmissing] + wz[notmissing, 
    selectedcovariates] + wrua2[notmissing] + strata(wsex[notmissing]) + 
    cluster(wdata$id[notmissing]), weights = weight[notmissing], 
    robust = TRUE)

  n= 2387 
                                     coef exp(coef) se(coef) robust se      z
allele[notmissing]                 -0.186     0.831    0.113     0.122 -1.518
wz[notmissing, selectedcovariates]  0.662     1.938    0.122     0.139  4.768
wrua2[notmissing]FRA               -1.295     0.274    0.381     0.400 -3.237
wrua2[notmissing]SWE               -0.404     0.668    0.257     0.272 -1.483
wrua2[notmissing]UNK               -0.281     0.755    0.318     0.346 -0.813
                                         p
allele[notmissing]                 1.3e-01
wz[notmissing, selectedcovariates] 1.9e-06
wrua2[notmissing]FRA               1.2e-03
wrua2[notmissing]SWE               1.4e-01
wrua2[notmissing]UNK               4.2e-01

                                   exp(coef) exp(-coef) lower .95 upper .95
allele[notmissing]                     0.831      1.204     0.654      1.06
wz[notmissing, selectedcovariates]     1.938      0.516     1.477      2.54
wrua2[notmissing]FRA                   0.274      3.651     0.125      0.60
wrua2[notmissing]SWE                   0.668      1.498     0.392      1.14
wrua2[notmissing]UNK                   0.755      1.325     0.383      1.49

Rsquare= 0.025   (max possible= 0.88 )
Likelihood ratio test= 60.3  on 5 df,   p=1.04e-11
Wald test            = 44.4  on 5 df,   p=1.89e-08
Score (logrank) test = 56.3  on 5 df,   p=6.97e-11,   Robust = 47.4  p=4.75e-09

  (Note: the likelihood ratio and score tests assume independence of
     observations within a cluster, the Wald and robust score tests do not).

Updated on 2008-06-04