R Under development (unstable) (2024-03-19 r86153 ucrt) -- "Unsuffered Consequences"
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> ## from Terry Therneau
> library(survey)
Loading required package: grid
Loading required package: Matrix
Loading required package: survival

Attaching package: 'survey'

The following object is masked from 'package:graphics':

    dotchart

> load("naa.rda")
> 
> fit1e <- svyglm( pseudo ~ age34 + ccr5 + factor(times),  design= adata.s,na.action=na.exclude)
> fit1o <- svyglm( pseudo ~ age34 + ccr5 + factor(times),  design= adata.s)
> all.equal(coef(fit1e),coef(fit1o))
[1] TRUE
> all.equal(vcov(fit1e),vcov(fit1o))
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   1.43    0.28    1.70