The epidemiological status of osteoporotic hip fractures: A bicentric comparative and retrospective study

Abstract

BACKGROUND:

Osteoporotic hip fractures have posed a significant burden to society, and more epidemiological data is required.

OBJECTIVE:

To compare the epidemiological differences of hip fracture patients in Spain and China.

METHOD:

This was a retrospective comparative study. Comparisons were made in terms of morbidity, demographic and anthropometric characteristics, length of stay, cost of hospitalization, and mortality by consulting the medical histories of osteoporotic hip fractures in two hospitals. The $t$ test was used for measurement data, and the $X^2$ test was used for count data. The difference is statistically significant when $p<$ 0.05.

RESULTS:

A total of 757 patients were enrolled in this study, with 426 from Virgen Macarena University Hospital (HUVM) and 331 from Xi’an Daxing Hospital (XDH). The average age was 81.4 $\pm$ 9.26 and 76.0 $\pm$ 8.08 years; the proportion of women was 74.9% and 68.0%, respectively. The incidence of osteoporotic hip fractures in Seville residents over 50 years old was approximately 239 per 100,000 residents, compared to 158 per 100,000 residents in Xi’an. The timing of surgery in Spanish patients was significantly longer than in Chinese patients, 78.7 $\pm$ 48.2 vs. 60.7 $\pm$ 43.1 hours, $p=$ 0.000. There were 81 deaths in Spain and 43 deaths in China during the one-year follow-up period ( $p=$ 0.026).

CONCLUSIONS:

In terms of incidence, demographics, surgical methods, and mortality, there are significant differences between hip fracture patients in Seville, Spain and Xi’an, China.