Direct standarization using WHO Standar with stata

[Rodrigo Badilla]

Hi all,

I would like know if dstdize use Direct standarization using WHO Standar (Ahmad et al. 2001: AGE STANDARDIZATION OF RATES:
A NEW WHO STANDARD), this paper use:

for populations A and B. where nis is the mid-year population in the ith age group of the standard population, ria
and rib are the death rates in age group i in populations A and B, respectively.

dstdize use:

where Ri is the stratum-specific rate in stratum i and wi is the weight for
stratum i derived from the standard population.

Uther method frequently used is preston et al. 1991, use:

for this method the commans are (from https://data.princeton.edu/eco572/std):

 infile str10 country str5 ageg pop deaths    using https://data.princeton.edu/eco572/datasets/preston21long.dat

 gen rates = 1000 * deaths / pop
 egen pcpop = pc(pop), by(country)
 egen avgcomp = mean(pcpop), by(ageg)

 * crude rate
tabstat rates[fw=pop], by(country)

*direct standarization
 tabstat rates [aw=avgcomp], by(country)

Do you know some method in stata for Direct standarization using WHO Standar (Ahmad et al. 2001)?

Thanks in advance
Regards
Rodrigo

[German Rodriguez]

HI Rodrigo Badilla. Standardized rates are just weighted averages, so they can easily be calculated "by hand", see the web page at https://data.princeton.edu/eco572/std. You can also use the Stata commands -dstdize- and -istdize- for direct and indirect standardization using any standard. An earlier thread has examples you may find useful, although the question was about indirect standardization, see https://www.statalist.org/forums/for...-using-istdize

[Rodrigo Badilla]

Thanks German Rodriguez for you reply. I will take your advice.

just I am looking a method to confirm my results, I think using preston or dstdize method I should get similar results in range.