K Lee1, S Lim1, H Park1, H Y Woo1, Y Chang2, E Sung2, H S Jung2, K E Yun2, C W Kim2, S Ryu2, M J Kwon3,4. 1. Department of Laboratory Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. 2. Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. 3. Department of Laboratory Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. mjkkmd@gmail.com. 4. Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. mjkkmd@gmail.com.
Abstract
Thyroid dysfunction is associated with the loss of bone density (osteoporosis). However, the connection between subclinical thyroid dysfunction and osteoporosis remains controversial. This study found no apparent association between subclinical hypothyroidism or subclinical hyperthyroidism and bone mineral density (BMD) in the lumbar spine and femur. INTRODUCTION: The present study examined the relationship between subclinical thyroid dysfunction and BMD in healthy middle-aged adults. METHODS: A total of 25,510 healthy Koreans with normal free thyroxine levels were enrolled from January 2011 to December 2016, and 91% of subjects visited only once. The average age of the 15,761 women was 45, and the average age of the 9749 men was 48. Levels of thyroid-stimulating hormone (TSH) and BMD were recorded in all subjects. BMD was measured using dual-energy X-ray absorptiometry. RESULTS: No apparent association was found between subclinical thyroid dysfunction and BMD in the lumbar spine, femur-neck, and proximal femur sites compared with a euthyroid group. Age, body mass index (BMI), and postmenopausal status affected BMD in women, and only BMI affected BMD in men. Subclinical hypothyroidism was independently associated with a lower risk of osteoporosis (odds ratio 0.657, 95% confidence interval 0.464-0.930) in 4710 postmenopausal women. CONCLUSIONS: No apparent association was found between subclinical hypothyroidism or subclinical hyperthyroidism defined on single TSH measurement and BMD at the lumbar spine and femur in a large cohort of middle-aged men and women. Subclinical hypothyroidism was independently associated with a lower risk of osteoporosis in postmenopausal women.
Thyroid dysfunction is associated with the loss of bone density (osteoporosis). However, the connection between subclinical thyroid dysfunction and osteoporosis remains controversial. This study found no apparent association between subclinical hypothyroidism or subclinical hyperthyroidism and bone mineral density (BMD) in the lumbar spine and femur. INTRODUCTION: The present study examined the relationship between subclinical thyroid dysfunction and BMD in healthy middle-aged adults. METHODS: A total of 25,510 healthy Koreans with normal free thyroxine levels were enrolled from January 2011 to December 2016, and 91% of subjects visited only once. The average age of the 15,761 women was 45, and the average age of the 9749 men was 48. Levels of thyroid-stimulating hormone (TSH) and BMD were recorded in all subjects. BMD was measured using dual-energy X-ray absorptiometry. RESULTS: No apparent association was found between subclinical thyroid dysfunction and BMD in the lumbar spine, femur-neck, and proximal femur sites compared with a euthyroid group. Age, body mass index (BMI), and postmenopausal status affected BMD in women, and only BMI affected BMD in men. Subclinical hypothyroidism was independently associated with a lower risk of osteoporosis (odds ratio 0.657, 95% confidence interval 0.464-0.930) in 4710 postmenopausal women. CONCLUSIONS: No apparent association was found between subclinical hypothyroidism or subclinical hyperthyroidism defined on single TSH measurement and BMD at the lumbar spine and femur in a large cohort of middle-aged men and women. Subclinical hypothyroidism was independently associated with a lower risk of osteoporosis in postmenopausal women.
Entities:
Keywords:
Bone mineral density; Osteoporosis; Subclinical thyroid dysfunction
Authors: Won Young Lee; Ki Won Oh; Eun Jung Rhee; Chan Hee Jung; Sun Woo Kim; Eun Joo Yun; Hyun Jung Tae; Ki Hyun Baek; Moo Il Kang; Moon Gi Choi; Hyung Joon Yoo; Sung Woo Park Journal: Arch Med Res Date: 2006-05 Impact factor: 2.235
Authors: Bo Abrahamsen; Henrik L Jørgensen; Anne Sofie Laulund; Mads Nybo; Doug C Bauer; Thomas H Brix; Laszlo Hegedüs Journal: J Bone Miner Res Date: 2015-05 Impact factor: 6.741
Authors: Elaine Murphy; Claus C Glüer; David M Reid; Dieter Felsenberg; Christian Roux; Richard Eastell; Graham R Williams Journal: J Clin Endocrinol Metab Date: 2010-04-21 Impact factor: 5.958
Authors: Jeffrey R Garber; Rhoda H Cobin; Hossein Gharib; James V Hennessey; Irwin Klein; Jeffrey I Mechanick; Rachel Pessah-Pollack; Peter A Singer; Kenneth A Woeber Journal: Thyroid Date: 2012-11-06 Impact factor: 6.568
Authors: So Young Park; Hae In Kim; Hyun-Kyung Oh; Tae Hyuk Kim; Hye Won Jang; Jae Hoon Chung; Myung-Hee Shin; Sun Wook Kim Journal: PLoS One Date: 2018-02-01 Impact factor: 3.240