J Med Assoc Thai 2002; 85 (5):565

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Incidence of Hip Fracture in Chiang Mai
Phadungkiat S Mail, Chiengthong K , Chariyalertsak S , Suriyawongpaisal P , Rajatanavin R , Woratanarat P

The reported incidence of hip fracture varies to a large extent across regions. Most studies
relied on hospital data under the assumption that nearly all cases of hip fracture get access to hos-
pital care. As in many developing countries, a number of hip fracture cases in Thailand might not
seek care in hospitals due to geographical, socio-cultural and financial barriers. Therefore, using
hospital data alone, could lead to under estimation of the magnitude of hip fracture. This study was
undertaken to obtain such information using a combined method of hospital discharge survey and a
cross sectional community survey.
It resulted in an estimated incidence of 151.2 per 100,000 (95% CI 136.7-167.2) from the
hospital survey and 185.2 per 100,000 (95% CI 138.1-247.6) from the community survey. Jn com-
parison to developed countries, age-adjusted incidence of hip fracture in this study was markedly
lower than that reported from developed countries. It was argued that different degree of urbaniza-
tion might explain the discrepancy. This implicated promotion of physical activity as a public health
measure to prevent hip fracture.
Key word : Hip Fracture, Hospital Based, Community Based, Incidence

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