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st: st: Advice needed about convergence problem in –binreg-
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st: st: Advice needed about convergence problem in –binreg-
Date
Mon, 6 Jan 2014 18:29:56 -0800
Hi Mashhood- I was recently dealing with the same issue; this is
apparently a common problem with log binomial regressions; essentially
identical effect estimates can be obtained from Poisson models with
robust errors, but there are some caveats:
Barros AJ, Hirakata VN (2003) Alternatives for logistic regression in
cross-sectional studies: an empirical comparison of models that
directly estimate the prevalence ratio. BMC Medical Research
Methodology 3: 21. doi:10.1186/1471-2288-3-21.
Coutinho L, Scazufca M, Menezes PR (2008) Methods for estimating
prevalence ratios in cross-sectional studies. Revista de Saúde Pública
42: 992–998.
Petersen MR, Deddens JA (2008) A comparison of two methods for
estimating prevalence ratios. BMC Medical Research Methodology 8: 9.
doi:10.1186/1471-2288-8-9.
cheers-
Andrew Lover
______________________________________________
Epidemiologist
Centre for Infectious Disease Epidemiology Research (CIDER)
Saw Swee Hock School of Public Health
National University of Singapore
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