Osteoporosis International

, Volume 12, Issue 3, pp 239–243

The Incidence of Hip Fracture in Four Asian Countries: The Asian Osteoporosis Study (AOS)


  • E. M. C. Lau
    • Department of Community and Family Medicine, The Chinese University of Hong Kong, Hong Kong
  • J. K. Lee
    • Orthopaedic Clinic, Subang Jaya Specialist Centre, Malaysia
  • P. Suriwongpaisal
    • Community Medicine Centre, Faulty of Medicine, Ramathibodi Hospital, Thailand
  • S. M. Saw
    • Department of Community, Occupational & Family Medicine, National University of Singapore, Singapore
  • S. Das De
    • Department of Orthopedics, National University Hospital, Singapore
  • A. Khir
    • Department of Medicine, Penang Medical College, Malaysia;
  • P. Sambrook
    • Florance & Cope Department of Rheumatology, Royal North Shore Hospital, Australia
Original Article

DOI: 10.1007/s001980170135

Cite this article as:
Lau, E., Lee, J., Suriwongpaisal, P. et al. Osteoporos Int (2001) 12: 239. doi:10.1007/s001980170135


The Asian Osteoporosis Study (AOS) is the first multicenter study to document and compare the incidence of hip fracture in four Asian countries. Hospital discharge data for the year 1997 were obtained for the Hong Kong SAR, Singapore, Malaysia and Thailand (Chiang Mai). The number of patients who were 50 years of age and older and who were discharged with a diagnosis of hip fracture (ICD9 820) was enumerated. The age-specific incidence rates were deduced and were directly adjusted to the US white population in 1989. The age-adjusted rates for men and women (per 100 000) are as follows: Hong Kong, 180 and 459; Singapore, 164 and 442; Malaysia, 88 and 218; Thailand, 114 and 289; compared with US White rates of 187 in men and 535 in women, published in 1989. We conclude that there is moderate variation in the incidence of hip fracture among Asian countries. The rates were highest in urbanized countries. With rapid economic development in Asia, hip fracture will prove to be a major public health challenge.

Key words:Asia – Hip fracture – Incidence – Standardized rates – Urbanization
Download to read the full article text

Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2001