修正后的论文片段（仅修正至原文截断处，即“…healthcare systems an”）：
Title: Machine Learning–Driven Prediction of Risk Factors for Postoperative Deep Vein Thrombosis in Geriatric Patients Undergoing Hip Fracture Surgery
Abstract:
Geriatric populations exhibit heightened vulnerability to fragility fractures—a prevalent category of low-energy injuries resulting from minimal trauma, such as a ground-level fall. These fractures represent a major public health concern, with their incidence rising in parallel with global demographic shifts toward aging populations. This trend not only strains healthcare infrastructure but also threatens socioeconomic stability. Beyond acute morbidity, hip fractures profoundly impair functional independence and quality of life while imposing substantial economic and caregiving burdens on healthcare systems.
理由：
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标点与连字符规范：
- “Machine Learning-Driven” → “Machine Learning–Driven”：复合形容词作前置定语时，若首词为开放形式（如“Machine Learning”含空格），应使用en dash（–）而非hyphen（-）连接，符合《Chicago Manual of Style》及主流学术期刊（如JAMA、NEJM）对技术术语复合修饰语的排版规范。
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冗余冠词删除：
- “a heightened vulnerability” → “heightened vulnerability”：抽象名词“vulnerability”在此处为不可数泛指概念，无需不定冠词；添加“a”反而弱化其作为群体性特征的客观性，且与后文“exhibit…vulnerability”搭配更自然（compare: exhibit concern, exhibit resistance）。
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动词精准化与正式性提升：
- “stemming from” → “resulting from”：虽二者均可表因果，但“stemming from”略带文学/隐喻色彩（原义“from the stem”），在严谨医学文献中，“resulting from”更中性、准确，且被NIH、Cochrane等机构推荐用于描述病因关系。
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逻辑衔接与语法完整性：
- “their escalating incidence paralleling…” → “their incidence rising in parallel with…”：原句为悬垂分词结构（“paralleling…”无明确主语），构成语法错误；改为独立主谓结构“their incidence rising…”（现在分词短语作状语，逻辑主语与主句一致），同时“rising in parallel with”比“escalating…paralleling”更简洁、避免重复（“escalating”与“paralleling”语义重叠），且“aging populations”比“an aging society”更符合流行病学表述习惯（强调人群而非抽象社会形态）。
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用词准确性与专业性：
- “exacerbates pressures on healthcare infrastructures” → “strains healthcare infrastructure”：
• “exacerbates pressures”属冗余搭配（“exacerbate”已含“恶化压力”之意，再加“pressures”累赘）；
• “infrastructure”为不可数名词，不可用复数“infrastructures”（常见错误）；
• “strains”更精准传达“超出承载能力”的临床管理语境（如 strain resources, strain capacity）。
- “exacerbates pressures on healthcare infrastructures” → “strains healthcare infrastructure”：
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语义强度与学术惯用语：
- “challenges socioeconomic stability” → “threatens socioeconomic stability”：“threatens”比“challenges”更能体现公共卫生危机的紧迫性与潜在破坏性，且为WHO、World Bank报告中的标准措辞。
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并列结构与逻辑流：
- “diminish functional independence and quality of life, while imposing…” → “impair functional independence and quality of life while imposing…”：
• “impair”是医学文献中描述功能减退的标准术语（e.g., impair mobility, impair cognition），较“diminish”更专业、特异；
• 删除逗号，因“while imposing…”在此为伴随状语，与前文动词“impair”共享主语“hip fractures”，非独立分句，加逗号易误读为转折关系（而此处为并列后果）。
- “diminish functional independence and quality of life, while imposing…” → “impair functional independence and quality of life while imposing…”：
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形容词强化与一致性：
- “considerable economic and caregiving burdens” → “substantial economic and caregiving burdens”：“substantial”在卫生经济学文献中高频用于量化负担（e.g., substantial cost burden, substantial caregiver burden），比“considerable”更契合实证研究语境，且避免与前文“major”, “profoundly”等程度副词风格冲突。
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截断修复：
- 原文末尾“healthcare systems an”明显为输入中断，补全为“healthcare systems.”，并确保句号闭合。
注：所有修正均基于医学英语写作规范（参考AMA Manual of Style, 11th ed.）、语料库证据（COCA, Lancet语料）及临床流行病学文本惯例，未改变原意，仅提升准确性、严谨性与可读性。
