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=Epidemiology=

Incidence of A Rotator Cuff Tear
A rotator cuff tear can be caused by the weakening of the rotator cuff tendons. This weakening can be caused by age or how often the rotator cuff is used. Adults over the age of 60 are more susceptible to a rotator cuff tear. According to a study in the Journal of Orthopaedic Surgery and Traumatology the frequency of rotator cuff tears can increase with age. The study shows the participants that were the ages of 70-90 years old had a rate of rotator cuff tears that were 1 to 5. The participants who were 90+ years old the frequency of a rotator cuff tear jumped to 1 to 3. This study shows that with an increase in age there is also an increase in the probability of a rotator cuff tear.

Prevalence of A Rotator Cuff Tear
According to a study in the Journal of Orthopaedics the prevalence of a rotator cuff tear was considerably greater in males than in females within the ages of 50-60 years old, within the ages of 70-80 years old there wasn’t much difference in prevalence. The data of this study showed that the prevalence of a rotator cuff tear in the general population is 22.1% Yamamoto et al preformed a medical examination on 683 people whom live in a mountain village. The purpose of this study was to determine the prevalence of a rotator cuff tear among a population. Yamamoto found that among the mountain village population, rotator cuff tears were present in 20.7% of the village population. In both of these studies we see that the percentages of the prevalence of a rotator cuff tear are very close in number so these numbers are show us the prevalence of rotator cuff tears in the general population.

Risk Factors of A Rotator Cuff Tear
There are some risk factors of experiencing a rotator cuff tear that we can not change; age, body mass index, height. Recurrent lifting and overhead motions are at risk for rotator cuff tears. People who have jobs that involve a lot of overhead work like, carpenters or painters, are at risk of also experiencing a rotator cuff tear. People who play sports that involve overhead motions like; swimming, baseball, tennis, and a football quarterback, are at a greater risk of experiencing a rotator cuff tear.