Sentence examples for by using robust sandwich from inspiring English sources

All analyses were corrected for non-independence of observations by using robust (sandwich) standard error estimation with the cluster command in Stata, family ID.

The model was fitted using robust sandwich estimator due to repeated measures.

The standard errors of all three methods are calculated using robust "sandwich" variance estimators.

Standard errors were then adjusted for repeat hospitalizations by using a robust sandwich estimator.

Familial dependency was handled by using a robust sandwich estimate of variance (R package survival, cluster function).

Confidence intervals were computed using robust variances (sandwich estimators) that take into account the correlation between multiple events within each individual [ 29].

In all cases P values were generated using robust variance estimators (sandwich estimators), which provide a method that is not unduly affected by outliers or other small departures from model assumptions.

Under population stratification, it was necessary to use robust 'information sandwich' variance estimates to achieve correct type 1 errors and confidence interval coverage with the QTDTM.

Statistical analysis of melanoma-specific survival was performed using the Cox proportional hazards using a robust sandwich covariance matrix estimate to account for the case control design.

To account for the additional variance introduced by the case-cohort design, standard errors were estimated using the robust sandwich estimator (Lin and Wei 1989).

For the multivariable logistic regression, we applied a backward stepwise procedure removing non-predicting covariates up to a significance level of 0.2 and allowed for possible clustering within houses by using the sandwich estimator robust cluster option in STATA.