Normocalcemic Hypoparathyroidism: Prevalence and Effect on Bone Status in Older Women. The OPUS Study. Abbreviated title: normocalcemic hypoparathyroidism in older women

(2015), Normocalcaemic hypoparathyroidism: prevalence and effect on bone status in older women. 3 turnover markers, PTH and 25D measurements were provided free by Immunodiagnostic Systems (Boldon, UK). Abstract Objective: There are no consistent data on the prevalence and bone status for normocalcemic hypoparathyroidism (NHYPO) as defined by normal adjusted calcium and low PTH level. Our aim is to determine the prevalence and the bone metabolic profile of NHYPO in older women assessing its evolution over the time. The second objective is to evaluate the prevalence of the other calcium metabolic disorders. Design: The Osteoporosis and Ultrasound Study (OPUS) is a 6-yr prospective study of fracture-related factors. Participants: a total of 2419 older women (ages 55-79) and 258 younger women (ages 30-40) participated. Complete follow-up data are available in 1416 subjects. Measurements A J the PTH M D different pathological categories using reference intervals from the healthy young women.