Religions & Beliefs in China. China has been a multi-religion country since the ancient times. It is well known that Confucianism is an indigenous religion and is the soul of Chinese culture, which enjoyed popular support among people and even became the guiding ideology for feudalism society, but it did not develop into a national belief.
For example, the median TSH level was 1.28 uU/mL in subjects aged 20-29 years and about 2 uU/mL in subjects aged 70-79. It should be noted that some variation in TSH values depends on the time of day when the sample is taken and the assay used.
The median TSH level increases with age, starting at about age 50, in a disease free population. The median TSH level in the total population is 1.49 uIU/mL, which is considerably below the 5.5 uIU/mL upper limit of normal reported by most laboratories. A growing number of endocrinologists believe that a TSH result above 3.0 uIU/mL is abnormal, regardless of the fT4 result. Reference range for TSH is 0.35 - 5.5 uIU/mL. Reference range for free T4 is 0.8 - 1.6 ng/dL. During the past 20 years, the upper reference limit for TSH has steadily declined from ~10 to 5.5 mIU/mL because of improvements in TSH assays and the enhanced sensitivity of thyroid antibody tests used to pre-screen subjects for reference range determinations.