The phrase "assessed by adding the" is correct and usable in written English.
It can be used in contexts where you are describing a method of evaluation or calculation that involves summing values or components.
Example: "The final score will be assessed by adding the individual scores from each round of the competition."
Alternatives: "evaluated by summing the" or "calculated by totaling the".
In this study, the influence of macromer branching on network properties was assessed by adding the trifunctional monomer pentaerythritol triacrylate (PETA) during synthesis.
The effect of growth factors and cytokines on cell scattering was assessed by adding the following growth factors in concentrations as indicated to the culture medium for 4 days: human TGF-β1, human EGF, LAP (all R&D Systems, Minneapolis, MN), human TNF-α (PeproTech, Rocky Hill, NJ), and HGF (kind gift from Don Bottaro).
In addition, the potential synergism was assessed by adding the term for memantine x donepezil interaction in the model (α = 0.10, two-sided).
Cell viability was assessed by adding the MTT reagent as indicated [ 14] and is given as % of untreated cells whose viability was set to 100%%.
Interactions between mental health and age, ethnicity, prepregnancy BMI, smoking, alcohol consumption, and parity were assessed, by adding the interaction terms one by one to the regression model.
Confounding was assessed by adding the potentially confounding variable to the model and making a subjective decision as to whether or not the coefficient of the variable of interest, ORs of GSM exposure, had changed substantially.
Potential confounding of various factors with known association with sex steroid levels or with breast measures, or with both, was assessed by adding those variables to the crude models.
The cell viability was assessed by adding XTT to the remaining media for an additional 4 hours following the manufacturer's instructions.
Confounding was assessed by adding variables into the model starting with exposure variables with the strongest association from univariable analysis with the outcome.
The effect of CTP (200 μm) on GdPC formation was assessed by adding CTP to the reaction mixture.
The next day, the medium was changed and the toxicity of AS was assessed by adding increasing amounts at the μM scale of the purified protein (both native and TAT) for 24 hours.
