Objective
To compare the evolution of health indicators and their relationship with legal frameworks and health policies in Chile, Colombia, and Honduras between 2011 and 2019.
Design
Retrospective ecological study of time series, with multivariate and comparative analysis.
Setting
Secondary national-level data from PAHO and WHO.
Participants
General population, represented through indicators of life expectancy, infant mortality, and vaccination coverage.
Interventions
Review of laws, plans, and public health policies in force, including financing regulations and vaccination programs.
Main measurements
Life expectancy at birth (years), infant mortality rate (per 1,000 live births), coverage of three doses of pneumococcal conjugate vaccine (PCV3, %), legal framework and health policies.
Analysis
MANOVA for multivariate differences, multiple linear regression adjusted by country and year, Pearson correlation, and assumption diagnostics.
Results
Significant heterogeneity was found among countries (Pillai's trace = 1.0653; p < 0.001). In 2019, Chile showed the highest life expectancy (79.9 years) and the lowest infant mortality (7.04/1,000), while Honduras recorded the worst indicators (71.3 years; 18.8/1,000). PCV3 coverage was high and homogeneous (>90%) in all three countries. The correlation between life expectancy and infant mortality was very strong and inverse (r = –0.943; p < 0.001).
Conclusions
Health disparities are explained by interactions among economic, institutional, and legislative factors. Reducing them requires strengthening the legal framework, increasing public health expenditure, and promoting international cooperation.
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