Unverified88% confidenceDecision RuleTime unknown
维持性补充选1000-2000IU/天可覆盖多数成人日常需求；缺乏纠正（血清25-OH-D＜20ng/ml）阶段需4000-5000IU/天并在8-12周后复查，达标后降至维持量
1
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88%
Confidence
Long-term
Relevance
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Unverified维持性补充选1000-2000IU/日即可满足多数成年人需求；血清25-OH-D<20ng/ml的明确缺乏者可短期用5000IU/日纠正，纠正后降至维持量，不建议长期无监测服用5000IU94% similarUnverified普通成人日常维持选1000-2000IU/天即可，缺乏纠正期（血清25-OH-D＜20ng/ml）可短期用5000IU/天，达标后回落到维持量；长期无监测下超过4000IU/天有蓄积风险93% similarUnverified普通成人日常维持选择1000-2000IU/天即可；血清25-OH-D严重缺乏（<20ng/ml）时才需5000IU/天短期强化，且应在补充2-3个月后复查血清水平再调整剂量92% similarUnverified血清25-OH-D＜20ng/ml（缺乏）时常需2000-5000IU/日纠正数月，充足维持一般1000-2000IU/日即可；无检测数据时成人日常维持选1000-2000IU较稳妥，不建议长期盲目5000IU91% similarUnverified健康成年人日常维持选择D3 1000-2000IU/天即可满足需求；血清25-OH-D已明确缺乏（<20ng/mL）时可短期用5000IU/天纠正，纠正后降回维持量91% similar
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