Prospective studies have variably adjusted for relevant confounders and have been of relatively limited duration.
前瞻性研究调整了相关混杂性设计和限制了持续时间。
2
Recent controlled studies suggest that potential confounders such as obesity, age and insulin resistance cannot fully explain this association.
通过控制如：肥胖、年龄和胰岛素抵抗等混杂因素，仍不能充分解释这种关联。
3
The researchers note that the associations persisted after adjustment for potential confounders and exclusion of individuals with less than 2.5 years of follow-up.