Sentence examples for by adding product terms from inspiring English sources

In the Health 2000 Survey, possible effect modification was studied by adding product terms for quartiles of fish consumption with smoking, and physical activity categorised as shown in Table 1, and alcohol consumption (ethanol, g/day) divided into tertiles.

Second-level interactions were studied by adding product terms to the models.

We routinely checked to determine whether model fit was significantly improved by adding product terms between pairs of predictors, and included those that were.

To investigate if HbA1c levels differed across levels of sex, BMI, smoking, or age, separate multiplicative interactions were tested by adding product terms to the proportional hazards model.

We then modeled multiplicative interactions between NHANES cycle and each demographic variable one at a time by adding product terms to the model for the interaction being evaluated, in addition to lower-order terms and covariates.

We therefore tested for interaction with eGFR, on the multiplicative scale by adding product terms between eGFR and 25(OH)D2 and 25(OH)D3 levels to the fully adjusted models, and on the additive scale by calculating the relative excess risk due to interaction [ 26].

Gilca et al. adjusted for interaction between influenza and RSV by adding a product term into their Poisson models.

Effect modification by gender was evaluated and tested by adding the product term of serum sTWEAK concentration*gender to the univariate model.

A formal test for interaction was performed by adding a product term between alcohol consumption and breast cancer risk into the non-stratified models.

We examined the potential interaction with TC 10-year breast cancer risk by stratifying on 10-year risk and by adding a product term between physical activity and breast cancer risk to the multivariable-adjusted models.

In linear regression model, Y is the continuous outcome due to risk factors A and B, and the interaction in an additive scale (INTA) is assessed by adding a product term A × B.