st: Log-linear modeling for capture-recapture using STATA

[Eric Kasowski <ekasowski@yahoo.com>]

I am trying to use STATA to model data from two overlapping data 
systems (a reportable disease registry and a clinical data system) 
using the log-linear method to calculate the number of cases missed by 
both data systems (i.e. capture-recapture).  The mathematical basis is 
described by Tilling, K, et. al., Capture-recapture Models Including 
Covariate Effects, American Journal of Epidemiology, 149(9), 2/15/1999, 
pp 392-400.

After matching records, I have a dataset with indicator variables for 
data source of origin (dichotomous for source 1 and source 2) as well 
as a number of covariates (hospital size, region, disease, etc.) that I 
would like to explore for interaction via modeling.

Does anyone know how to set up and interpret the models in STATA?  I’m 
not new to regression via STATA but I can’t figure out how to derive 
the missing cell of data (i.e. the records missed by both surveillance 
systems) from the model.

Thank you.

Eric Kasowski, DVM, MD, MPH
Navy Environmental and Preventive Medicine Unit No. 6

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