Vitamin D Status of Thai Premenopausal Women
Suppasin Soontrapa MD*, Sukree Soontrapa MD**, Narong Bunyaratavej MD***, Sattaya Rojanasthien MD*****, Nipat Kittimanon MD*****, Songkiat Lektrakul MD******
Affiliation : * Departments of Orthopaedics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand ** Department of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand *** Departments of Orthopaedics, Siriraj Hospital, Mahidol Universytiy Bangkok, Thailand **** Departments of Orthopaedics, Maharaj Nakorn Chiang Mai Hospital, Chiang Mai University, Chiang Mai, Thailand ***** Buddhachinaraj Hosp, Pitsanulok, Thailand ****** Sappasittiprasong, Ubon Ratchathani, Thailand
Vitamin D insufficiency of Thai elderly women in urban area were higher than in rural area because of the difference in life style. Until now there are no any evidences about vitamin D status in Thai premenopausal women. This study was the multicenters study from 5 provinces of Thailand which cover all region of Thailand except southern area. The mean (SE) of calcidiol level of Thai premenopausal women was 29.09(0.42) ng/ml, and with the cut point of < 35 ng/ml; the prevalence of vitamin D insufficiency was 77.81%. Chiang Mai had lowest calcidiol level (25.09 ng/ml) and had highest PTH, and bone resorption markers. The prevalence of vitamin D insufficiency was highest in Khon Kaen (88.78%) and Chiang Mai (84.62%) province respectively. Life style modification to expose more sunlight should be advised for increasing the serum vitamin D and lowering the risk of osteoporosis.
Keywords : Calcidiol, Premenopausal women, Vitamin D insufficiency
