翻译：提供更详细的关于全球白血病流行率及其对患者及其家属的影响的更详细的背景尤其是经济负担方面将有助于读者更好地理解该研究主题的意义。

Providing a more detailed background on the global prevalence of leukemia and its impact on patients and their families, particularly in terms of the economic burden, will help readers better understand the significance of the research topic.