Incidence of hip fractures in Mexico 2006-2019: increasing numbers but decreasing rates.

Abstract

This study is to examine the incidence, rates, and time trends of hip fractures from 2006 to 2019 in Mexico. Additionally, an analysis of the follow-up of the birth cohorts was carried out. Hip fractures registered during the period of the study were obtained through the Mexican Social Security Institute (IMSS) national discharge records. The incidence per 100,000 individuals was calculated from the IMSS population at risk. A time trend analysis was conducted using linear regression, and the identification of breakpoints in linear trends. There was an increase of hip fractures for both sexes ≥ 60years (43% for women and 41%, for men). However, the rates diminished from 167.8/100,000 in 2006 to 138.5 /100,000 in the population 60 and over (1.9% and 0.9% per year in women and men respectively). When the information was analyzed by age groups, hip fracture rates were similar in both sexes but higher in women. The most significant contribution to the total number of fractures is due to the groups ≥ 70years; people born before 1937 are accounting for the burden of fractures over the total data. In contrast, the younger generations appear to have lower rates. Rates of hip fracture have steadily declined in Mexico since 2006; however, with the population aging in the coming decades, current rates declines could be expected to reverse.