Background/Purpose: Monitoring the incidence of hip fractures is essential to measuring population health and the value of improvements in health care. Data on recent trends in hip fractures from Eastern European countries is limited.

Methods:

Ecologic trend study uses data from the public health insurance fund covering the whole country to estimate the incidence of hip fracture. For the incident hip fracture case definition was based on the ICD 10 diagnosis code S72.0 on the health care bill for a person who had not been treated for the same cause in a preceding 12 months.

Age-specific fracture rates were calculated for males and females in 10 year age brackets and for population aged over 40 years. Age-standardized incidence rates were estimated using direct standardization method with the European population set as standard; trend in the rates over time was assessed using linear regression.

Results:

In 2012, 833 patients were admitted for inpatient care for the incidence case of the hip fracture: 68% of the patients were women; the mean age was 76.7 years (SD 11.9; mean age for women 79.0 years, men 71.7 years; p-value<0.001).  The age-specific incidence rates among women ranged from 9/100 000 (age group of 40-49) to 654/100 000 (age group 80+ years). The age-specific incidence rates among men ranged from 16/100 000 (age group of 40-49) to 577/100 000 (age group 80+). 57% and 34% of hip fracture cases were attributed to the oldest age group (80+ years) among women and men accordingly.

Unlikely for women and other age groups among men, age-specific incidence rates for men over 80 years were increasing between 2005 and 2012.

Over the period of 2005-2012 the estimated age-standardized incidence rates ranged from 102/100 000 (95%CI 89−114; in 2005) to 81/100 000 (95%CI 70−91; in 2012) among women, and from 91/100 000 (95%CI 83−100; in 2005) to 74/ 100 000 (95%CI 67−81; in 2012) among men. For both genders, the age-standardized incidence rates decreased over the period of 2005-2012 (men: p= 0.022; women; p- 0.02).

Conclusion: To our knowledge this is the first population-based analysis of hip fracture incidence in Estonia. There was no statistical difference between age-standardized incidence rates among women and men. The incidence among men was comparable to that reported from men from other European countries. However, the incidence observed among Estonian women is lower than that reported from their European counterparts. There was a decline in age-standardized incidence over the study period among both genders.

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ACR Meeting Abstracts - https://acrabstracts.org/abstract/incidence-of-osteoporotic-hip-fractures-in-estonia-between-2005-and-2012/