response: (stroke3 %in% c('1','2')) 
covariates: dsmoker 
SNP: SMAD3_MG_452 
Call:
coxph(formula = y[notmissing] ~ allele[notmissing] + wz[notmissing, 
    selectedcovariates] + wruaco[notmissing] + strata(wsex[notmissing]) + 
    cluster(wdata$id[notmissing]), weights = weight[notmissing], 
    robust = TRUE)

  n= 2485 
                                      coef exp(coef) se(coef) robust se      z
allele[notmissing]                  0.0241     1.024   0.0839    0.0948  0.254
wz[notmissing, selectedcovariates]  0.3108     1.365   0.1223    0.1326  2.345
wruaco[notmissing]FIN-EAS_03        0.2262     1.254   0.2144    0.2287  0.989
wruaco[notmissing]FIN-EAS_24       -0.1274     0.880   0.1828    0.2066 -0.617
wruaco[notmissing]FIN-WES_03       -0.2039     0.816   0.2315    0.2459 -0.829
wruaco[notmissing]FIN-WES_24       -0.2268     0.797   0.1974    0.2258 -1.005
wruaco[notmissing]FRA-LIL_21       -0.8762     0.416   0.4710    0.5026 -1.744
wruaco[notmissing]FRA-STR_21       -0.9123     0.402   0.4402    0.4646 -1.963
wruaco[notmissing]FRA-TOU_21       -1.1642     0.312   0.5254    0.5565 -2.092
wruaco[notmissing]SWE-NSW_02       -0.0321     0.968   0.2770    0.3100 -0.103
wruaco[notmissing]SWE-NSW_03        0.0789     1.082   0.2568    0.2786  0.283
wruaco[notmissing]UNK-BEL_21       -0.7862     0.456   0.3587    0.3760 -2.091
                                       p
allele[notmissing]                 0.800
wz[notmissing, selectedcovariates] 0.019
wruaco[notmissing]FIN-EAS_03       0.320
wruaco[notmissing]FIN-EAS_24       0.540
wruaco[notmissing]FIN-WES_03       0.410
wruaco[notmissing]FIN-WES_24       0.320
wruaco[notmissing]FRA-LIL_21       0.081
wruaco[notmissing]FRA-STR_21       0.050
wruaco[notmissing]FRA-TOU_21       0.036
wruaco[notmissing]SWE-NSW_02       0.920
wruaco[notmissing]SWE-NSW_03       0.780
wruaco[notmissing]UNK-BEL_21       0.037

                                   exp(coef) exp(-coef) lower .95 upper .95
allele[notmissing]                     1.024      0.976     0.851     1.234
wz[notmissing, selectedcovariates]     1.365      0.733     1.052     1.769
wruaco[notmissing]FIN-EAS_03           1.254      0.798     0.801     1.963
wruaco[notmissing]FIN-EAS_24           0.880      1.136     0.587     1.320
wruaco[notmissing]FIN-WES_03           0.816      1.226     0.504     1.320
wruaco[notmissing]FIN-WES_24           0.797      1.255     0.512     1.241
wruaco[notmissing]FRA-LIL_21           0.416      2.402     0.155     1.115
wruaco[notmissing]FRA-STR_21           0.402      2.490     0.162     0.998
wruaco[notmissing]FRA-TOU_21           0.312      3.203     0.105     0.929
wruaco[notmissing]SWE-NSW_02           0.968      1.033     0.527     1.778
wruaco[notmissing]SWE-NSW_03           1.082      0.924     0.627     1.868
wruaco[notmissing]UNK-BEL_21           0.456      2.195     0.218     0.952

Rsquare= 0.015   (max possible= 0.924 )
Likelihood ratio test= 36.7  on 12 df,   p=0.000252
Wald test            = 31.4  on 12 df,   p=0.00168
Score (logrank) test = 35.1  on 12 df,   p=0.000451,   Robust = 32.9  p=0.00101

  (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