This research analyses the axiomatic link among health expenditures, inflation rate, and gross national income (GNI) per capita concerning the child mortality (CMU5) rate in D-8 nations, employing panel data analysis from 1995 to 2014. Utilising conventional panel unit root tests and linear regression models, we establish that education expenditures, in conjunction with health expenditures, inflation rate, and GNI per capita, display stationarity at level. Additionally, we examine fixed effects and random effects estimators for the pertinent variables, utilising metrics such as the Hausman Test (HT) and comparisons with CCMR correlations. Our data demonstrate that the CMU5 rate in D-8 nations has steadily decreased, according to a somewhat negative linear regression model, therefore slightly undermining the fourth Millennium Development Goal (MDG4) of the World Health Organisation (WHO).

翻译：本研究采用1995年至2014年的面板数据，分析了D-8国家中卫生支出、通货膨胀率及人均国民总收入（GNI）与五岁以下儿童死亡率（CMU5）之间的公理化关联。通过传统面板单位根检验与线性回归模型，我们发现教育支出与卫生支出、通货膨胀率及人均GNI在水平序列上均呈现平稳性。此外，我们采用固定效应与随机效应估计量对相关变量进行检验，并运用豪斯曼检验（HT）及与CCMR相关性比较等指标进行评估。数据显示，基于略呈负向的线性回归模型，D-8国家的CMU5率呈持续下降趋势，这在一定程度上弱化了世界卫生组织（WHO）第四个千年发展目标（MDG4）的实现成效。