The protocol for the Prospective Urban Rural Epidemiology China Action on Spine and Hip status study

Area of Science:

• Epidemiology
• Orthopedics
• Radiology

Background:

• Osteoporosis and spinal fractures pose significant public health challenges, particularly in aging populations.
• Understanding the prevalence and risk factors for these conditions in China is crucial for developing targeted interventions.

Purpose of the Study:

• To determine the prevalence of osteoporosis and vertebral fractures in a Chinese population aged over 40.
• To explore the relationship between bone mineral density (BMD) and vertebral fractures.
• To assess the predictive value of BMD for incident fractures.

Main Methods:

• A prospective, large-scale, community-based study involving 3,457 participants aged over 40 from 12 centers in China.
• Quantitative computed tomography (QCT) scans of the upper abdomen were used to measure BMD at L1-L3 vertebrae.
• Vertebral fractures were semi-quantified using Genant's method on scout view images (T4-L4 vertebrae).

Main Results:

• The study determined the prevalence of osteoporosis and vertebral fractures in the studied Chinese population.
• An association between vertebral fractures and bone mineral density (BMD) values was evaluated.
• The predictive power of BMD for incident fractures was assessed.

Conclusions:

• The PURE CASH study provides valuable epidemiological data on osteoporosis and spinal fractures in China.
• Findings underscore the importance of BMD assessment for identifying individuals at risk of fractures.
• Further research is warranted to explore effective prevention and management strategies.