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在英国各年龄组妇女罹患甲状腺功能低下症至少占1.4%,而在60岁以上两性老年人调查中,流行率上升至5%。甲状腺素被广泛地用在甲状腺功能低下及指征不清的条件时,例如在美国一项随访调查表明,服用甲状腺素者15%是为了减肥或消除疲劳。 然而甲状腺素并不是一种无害的制剂,不应当作某种安慰剂来使用。近期研究提示,应仔细考虑甲状腺素的用量。在传统使用的剂量内(100～200μg/d)病人所接受的甲状腺素常能提高血清总甲状
The prevalence of hypothyroidism in women of all ages in the United Kingdom is at least 1.4%, while in the survey of men and women over the age of 60, the prevalence rises to 5%. Thyroxine is widely used in hypothyroidism and poorly defined conditions, such as in the United States, a follow-up survey showed that 15% of those taking thyroid hormone is to lose weight or eliminate fatigue. However, thyroxine is not a harmless preparation and should not be used as a placebo. Recent research suggests that the amount of thyroxine should be carefully considered. In the traditional use of the dose (100 ~ 200μg / d) in patients with thyroid hormone often can increase the total serum thyroid