求翻译：高龄老年患者因为生理性器官功能退变、基础病多及易并发合并症等病情复杂，病死率高，临床用药疗效及安全性尤为重要是什么意思？

Elderly patients because of the physiological organ function degeneration, the underlying disease and may predispose to complications such as illness is complex, high mortality, clinical drug efficacy and safety is particularly important

Old age older patients because of the physical sex organs and functions, and disease-based concurrent combined and easy-to-complex disorders such as illness, has a high fatality rate, and the clinical efficacy and safety in medicine, it is important

Because the advanced age old age patient the physiological reproductive organ function draws back changes, the foundation gets sick many and conditions and so on easy concurrent complications to be complex, the case fatality rate is high, the clinical medication curative effect and the security espe

Because of physiological organ functions in patients with senile degeneration, the underlying disease and other complications, and other complex medical conditions, high fatality rates, clinical efficacy and safety of particular importance

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