The interval for non-smokers goes from about 0.36 up to 0.48. The interval for the smokers (which starts at 0.55) and the interval for the non-smokers (which ends at 0.48) do not overlap - that is another sign that the differences seen in this study was significant. Statistical Significance and Confidence Intervals
Symptom: Swollen Neck. A goiter is an enlargement of the thyroid gland, As shown here; an enlarged thyroid can be seen as a swelling in the front of the neck. A goiter can occur both as a result of hypothyroidism and hyperthyroidism.It can sometimes also result from tumors or nodules that develop within the thyroid gland.ymptom: Swollen Neck. A goiter is an enlargement of the thyroid gland, As shown here; an enlarged thyroid can be seen as a swelling in the front of the neck. A goiter can occur both as a result of hypothyroidism and hyperthyroidism.
Goiter is a swelling (hypertrophy) of a gland in the neck called the thyroid gland. 1-3 The thyroid gland is situated in front of the windpipe and is responsible for producing and secreting hormones that regulate growth and metabolism. Treatment is not necessary unless the goiter is large and causes symptoms (there are often no symptoms). 2  Synthetic thyroid hormone is a treatment for underactive thyroid, while anti-thyroid drugs are options for an overactive gland.