Privacy-protecting estimation of adjusted risk ratios using modified Poisson regression in multi-center studies

Table 1 Point Estimates and Standard Errors Using the Summary-Level Modified Poisson Method and Pooled Individual-Level Data Analysis: Analysis of Simulated Data

Covariates	Summary-Level Modified Poisson Method		Pooled Individual-Level Data Analysis
Covariates	Parameter Estimates	Standard Errors	Parameter Estimates	Standard Errors
Intercept	−0.09702882	0.03751991	−0.09702882	0.03751991
Exposure	−0.48776703	0.03462485	−0.48776703	0.03462485
X₁	−0.38249121	0.02968448	−0.38249121	0.02968448
X₂	−0.62968463	0.05161073	−0.62968463	0.05161073
X₃	−0.50382664	0.02389781	−0.50382664	0.02389781
X₄	−0.09079213	0.03389126	−0.09079213	0.03389126
X₅	0.13274741	0.03814272	0.13274741	0.03814272

ISSN: 1471-2288