• 1
    Ross PD 1996 Osteoporosis. Frequency, consequences, and risk factors. Arch Intern Med 156:13991411.
  • 2
    Hui SL, Slemenda CW, Johnston CC Jr 1989 Baseline measurement of bone mass predicts fracture in white women. Ann Intern Med 111:355361.
  • 3
    Melton LJ III, Atkinson EJ, O'Fallon WM, Wahner HW, Riggs BL 1993 Long-term fracture prediction by bone mineral assessed at different skeletal sites. J Bone Miner Res 8:12271233.
  • 4
    Cummings SR, Black DM, Nevitt MC, Browner W, Cauley J, Ensrud K, Genant HK, Palermo L, Scott J, Vogt TM 1993 Bone density at various sites for prediction of hip fractures. Lancet 341:7275.
  • 5
    Garnero P, Sornay-Rendu E, Chapuy M-C, Delmas PD 1996 Increased bone turnover in late postmenopausal women is a major determinant of osteoporosis. J Bone Miner Res 11:337349.
  • 6
    Melton LJ III, Khosla S, Atkinson EJ, O'Fallon WM, Riggs BL 1997 Relationship of bone turnover to bone density and fractures. J Bone Miner Res 12:10831091.
  • 7
    Epstein S, McClintock R, Bryce G, Poser J, Johnston CC Jr, Hui S 1984 Differences in serum bone Gla protein with age and sex. Lancet 1:307310.
  • 8
    Riis BJ, Hansen AM, Jensen AM, Overgaard K, Christiansen C 1996 Low bone mass and fast rate of bone loss at menopause: Equal risk factors for future fracture: A 15-year follow-up study. Bone 19:912.
  • 9
    Åkesson K, Ljunghall S, Jonsson B, Sernbo I, Johnell O, Gärdsell P, Obrant KJ 1995 Assessment of biochemical markers of bone metabolism in relation to the occurrence of fracture: A retrospective and prospective population-based study of women. J Bone Miner Res 10:18231829.
  • 10
    Garnero P, Hausherr E, Chapuy M-C, Marcelli C, Grandjean H, Muller C, Cormier C, Breart G, Meunier PJ Delmas PD 1996 Markers of bone resorption predict hip fracture in elderly women: The EPIDOS Prospective Study. J Bone Miner Res 11:15311538.
  • 11
    Plantalech L, Guillamont M, Vergnaud P, Leclercq M, Delmas PD 1991 Impairment of gamma carboxylation of circulating osteocalcin (bone Gla protein) in elderly women. J Bone Miner Res 6:12111216.
  • 12
    Obrant KJ, Käkönen S-M, Astermark J, Lilja H, Lövgren T, Åkesson K, Pettersson K 1999 The proportion of carboxylated to total or intact osteocalcin in serum discriminates warfarin treated patients from control subjects. J Bone Miner Res 14:555560.
  • 13
    Knapen MHJ, Hamulyak K, Vermeer C 1989 The effect of vitamin K supplementation on circulating osteocalcin (bone Gla protein) and urinary excretion. Ann Intern Med 111:10011005.
  • 14
    Merle B, Delmas PD 1990 Normal carboxylation of circulating osteocalcin (bone Gla protein) in Paget's disease of bone. Bone Miner 11:237245.
  • 15
    Szulc P, Chapuy M-C, Meunier PJ, Delmas PD 1993 Serum undercarboxylated osteocalcin is a marker of the risk of hip fracture in elderly women. J Clin Invest 91:17691774.
  • 16
    Vergnaud P, Garnero P, Meunier PJ, Breart G, Kamihagi K, Delmas PD 1997 Undercarboxylated osteocalcin measured with a specific immunoassay predict hip fracture in elderly women: The EPIDOS Study. J Clin Endocrinol Metab 82:719724.
  • 17
    Masters PW, Jones RG, Purves DA, Cooper EH, Cooney JM 1994 Commercial assays for serum osteocalcin give clinically discordant results. Clin Chem 40:358363.
  • 18
    Hellman J, Käkönen S-M, Matikainen M-T, Karp M, Lövgren T, Väänäen HK, Pettersson K 1996 Epitope mapping of nine monoclonal antibodies against osteocalcin: Combinations into two-site assays affect both assay specificity and sample stability. J Bone Miner Res 11:11651175.
  • 19
    Luukinen H, Koski K, Laippala P, Kivelä S-L 1997 Factors predicting fractures during falling impacts among home-dwelling older adults. J Am Geriatr Soc 45:13021309.
  • 20
    Koski K, Luukinen H, Laippala P, Kivelä S-L 1996 Physiological factors and medications as predictors of injurious falls by elderly: A prospective population-based study. Age Ageing 25:2938.
  • 21
    Tucker M, Ogle S, Davison J, Eilenberg MD 1987 Validation of a brief screening test for depression in the elderly. Age Ageing 16:139144.
  • 22
    Folstein MF, Folstein SE, McHugh PR 1975 Mini-mental state: A practical method for grading the cognitive state of patients for the clinician. J Psychiatr Res 12:189198.
  • 23
    Pact V, Sirotkin-Roses M, Beatus J 1984 Testing in the sitting position. In: PactV, Sirotkin-RosesM, BeatusJ (eds.) The Muscle Testing Handbook. Little, Brown and Company, Boston, MA, U.S.A./Toronto, Canada, p. 62.
  • 24
    Hirvelä H, Luukinen H, Laatikainen L 1995 Prevalence and risk factors of lens opacities in the elderly in Finland. A population-based study. Ophthalmology 102:108117.
  • 25
    Luukinen H, Koski K, Honkanen R, Kivelä S-L 1995 Incidence of injury-causing falls among older adults by place of residence: A population-based study. J Am Geriatr Soc 43:871876.
  • 26
    Hodges SJ, Pilkington MJ, Shearer MJ, Bitensky L, Chayen J 1990 Age-related changes in the circulating levels of congeners of vitamin K2, menaquinone-7, and menaquinone-8. Clin Sci 78:6366.
  • 27
    Liu G, Peakcock M 1998 Age-related changes in serum undercarboxylated osteocalcin and its relationships with bone density, bone quality, and hip fracture. Calcif Tissue Int 62:286289.
  • 28
    Hodges SJ, Åkesson K, Vergnaud P, Obrant K, Delmas PD 1993 Circulating levels of vitamins K1 and K2 decreased in elderly women with hip fracture. J Bone Miner Res 8:12411245.
  • 29
    Deyl Z, Adam M 1983 Evidence for vitamin D dependent γ-carboxylation in osteocalcin related proteins. Biochem Biophys Res Commun 113:294300.
  • 30
    Knapen MK, Hamulyak K, Vermeer C 1989 The effect of vitamin K supplementation on circulating osteocalcin (bone Gla protein) and urinary calcium excretion. Ann Intern Med 111:10011005.
  • 31
    Chapuy MC, Schott AM, Garnero P, Hans D, Delmas PD, Meunier PJ 1996 Healthy elderly French women living at home have secondary hyperparathyroidism and high bone turnover in winter. J Clin Endocrinol Metab 81:11291133.