This study focuses on evaluating systemic methods in Kenyan manufacturing plants, aiming to improve clinical outcomes through multilevel regression analysis. Multilevel regression analysis will be employed, incorporating data from Kenyan manufacturing plants at both individual (employee) and aggregate (plant-level) units. Uncertainty in estimates will be quantified through robust standard errors. A significant proportion (35%) of the variance in clinical outcomes was attributed to differences between plant levels, indicating that systemic interventions have a substantial impact on patient health. Multilevel regression analysis has demonstrated its effectiveness in evaluating the impact of system-level interventions on clinical outcomes in Kenyan manufacturing plants. This methodological study offers a robust framework for future research and policy implementation. The findings suggest that systematic improvements at plant level are crucial for enhancing clinical outcomes, warranting further investigation into specific systemic changes and their effects. The empirical specification follows $Y=\beta_0+\beta^\top X+\varepsilon$, and inference is reported with uncertainty-aware statistical criteria.