The phrase "a major variable for the" is correct and usable in written English.
It can be used when discussing factors or elements that significantly influence a particular outcome or situation.
Example: "In this study, we identified a major variable for the success of the marketing campaign."
Alternatives: "a key factor for the" or "a significant element for the".
The recorded major variables for the patients were age, sex and the total body burden of radioactive Cs (Cs-134 and Cs-137).
Descriptive statistics for the major variables for the pooled sample and three subgroups are presented in table 3. To examine significant determinants of vaccination intention, hierarchical multiple regression analysis was performed, first for the entire sample and then for the three subgroups according to the child's age.
Thirteen studies examined SRMH as a major variable in relation to health services for its utilization, help-seeking and satisfaction.
The PCA bi-plots explained strong associations among the major variables for T17, and also confirming the data presented in the Tables 2 and 3.
The prognostic significance of lymphatic invasion is however limited in this subgroup: T and N classification, as well as tumor differentiation, are the major variables for prognostication, and merit special attention in patient counseling and decision making.
In the development of MRV methods AGB plays a key role, as it represents the most easily measurable carbon stock, it can be recalculated to carbon data, and it is a major predictor variable for modelling the other four categories.
Geography constitutes a major explanatory variable for global patterns of variation in human genomes (Rosenberg et al. 2002; Coop et al. 2009).
We also described equations for predicting strength of handgrip, elbow flexion and extension, and knee flexion and extension and observed that height is a major explanatory variable for muscle strength.
The effect of laser cladding on the fatigue and fracture behavior under variable amplitude loading is a major consideration for the development of laser cladding process to repair high value complex fatigue critical aerospace military components, that otherwise would be replaced.
