The phrase "adjustment for study" is correct and usable in written English.
It can be used in contexts where you are discussing modifications or changes made to facilitate or improve a study or research process.
Example: "The researchers made an adjustment for study to account for the varying levels of participant engagement."
Alternatives: "modification for research" or "adaptation for analysis."
However, five of the 11 articles using a one-step method did not state they adjusted for clustering of patients within studies; the one-step method requires specific adjustment for study (e.g. by including a dummy variable for each study) otherwise it treats the IPD as if all coming from a single study.
The bivariate spline in BMI and maternal age was significantly associated with gastroschisis (P = 0.0001) after adjustment for study centre, maternal race/ethnicity, education, income and number of persons supported by income, smoking, alcohol use, vitamin use, vasoconstrictor medication use and gestational diabetes.
Adjustment for study site and other pre-planned baseline variables changed the SAVVY hazard ratio little (hazard ratio 1.8; 95% CI 0.9, 3.6; Table 3).
†After adjustment for study.
Without adjustment for study site, higher levels of all pollutants were associated with greater percent emphysema.
Results were similar after adjustment for study site (data not shown).
Bayesian analyses with and without adjustment for study-level covariates were performed using noninformative priors.
This pipeline included the adjustment for study-related batch effects to minimize superficial inter-study discordance caused mainly by random noise and technical differences.
Notably, other authors extrapolated these results globally without any adjustments for study bias or differential survival of PID patients in different countries and estimated an unrealistic global prevalence as up to 6 million PID patients worldwide [ 39].
In this study, adjustment for secondary study-level factors, like study group, can be incorporated into the individual or traditional estimate-based meta-analysis because there are multiple studies per level of secondary factor.
Adjustment for CHS study site did not affect the magnitudes of the associations between any SEP indicator and incident mobility impairment in Whites or Blacks.
