(acute myocardial infarction, ischemic stroke, mixed ICU cohorts)不改了

问题 1（指代）：
括号里的“(acute myocardial infarction, ischemic stroke, mixed ICU cohorts)”并不指代 low HGI 或 high HGI 本身，而是在列举出现这种现象的观察性队列类型（AMI、缺血性卒中、混合ICU队列），用来限定前面的“multiple observational cohorts”。整句的含义是：** 在这些队列中**，HGI与结局呈反J型关联，且在低 HGI 端出现更高的死亡率或并发症风险。

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问题 2（去掉括号并润色，三种英文版本，保留原有缩略语）：

版本 A（紧凑学术风）：
Consistent with this, multiple observational cohorts in critical-care and cardiovascular settings—including acute myocardial infarction, ischemic stroke, and mixed ICU populations—show a reverse‑J association between HGI and outcomes, with higher mortality or complications at the low‑HGI end. Low HGI may index non‑glycemic depression of HbA1c or overtreatment‑related discordance, both of which can signal heightened vulnerability despite apparently favorable HbA1c.

版本 B（强调研究来源）：
Aligned with these observations, cohorts drawn from acute myocardial infarction, ischemic stroke, and mixed ICU settings demonstrate a reverse‑J relationship between HGI and clinical outcomes, characterized by greater mortality or complications at the low‑HGI extreme. Low HGI may reflect non‑glycemic suppression of HbA1c or overtreatment‑related discordance, either of which can mark increased vulnerability despite ostensibly favorable HbA1c.

版本 C（叙述更直白）：
In line with this pattern, data from acute myocardial infarction, ischemic stroke, and mixed ICU cohorts indicate a reverse‑J association between HGI and outcomes, whereby the low‑HGI end is linked to higher mortality or complications. Low HGI may capture non‑glycemic depression of HbA1c or overtreatment‑related discordance, both potentially indexing heightened vulnerability even when HbA1c appears favorable.