请教用R语言的大神，为什么我的数据用GEE语句跑出来的结果找不到P值呢，也没有提示warning message，难道是语句搞错啦？
代码如下所示：
t <- gee(EPDS_910~SCSQ_PO+SCSQ_NEG+educational+CP_relation,id = ID,data = DATA_ORI_LONG,family = binomial,corstr='unstructured')
summary(t)

结果如下所示：
GEE:  GENERALIZED LINEAR MODELS FOR DEPENDENT DATA
gee S-function, version 4.13 modified 98/01/27 (1998)

Model:
Link:                      Logit
Variance to Mean Relation: Binomial
Correlation Structure:     Unstructured

Call:
gee(formula = EPDS_910 ~ SCSQ_PO + SCSQ_NEG, id = ID, data = DATA_ORI_LONG,
    na.action = na.omit, family = binomial, corstr = "unstructured")

Summary of Residuals:
       Min         1Q     Median         3Q        Max
-0.8682829 -0.3138469 -0.1945135  0.5261136  0.9307375


Coefficients:
              Estimate Naive S.E.    Naive z Robust S.E.   Robust z
(Intercept)  0.4240001 0.17558078   2.414843  0.17599985   2.409093
SCSQ_PO     -1.1801093 0.08844989 -13.342124  0.08860015 -13.319496
SCSQ_NEG     0.8476917 0.08489750   9.984884  0.08531588   9.935918

Estimated Scale Parameter:  1.002033
Number of Iterations:  1

Working Correlation
     [,1] [,2] [,3] [,4] [,5]
[1,]    1    0    0    0    0
[2,]    0    0    0    0    0
[3,]    0    0    0    0    0
[4,]    0    0    0    0    0
[5,]    0    0    0    0    0

那些robust，naive是什么意思呢，然后也没有可信区间和P值，是需要到哪里设置吗