What test can be used to compare the fracture rates in these two communities while controlling for

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What test can be used to compare the fracture rates in these two communities while controlling for age? 


Endocrinology

A study was performed looking at the risk of fractures in three rural Iowa communities according to whether their drinking water was €œhigher calcium,€ €œhigher fluorides,€ or €œcontrol€ as determined by water samples. Table 13.44 presents data comparing the rate of fractures (over 5 years) between the higher-calcium vs. the control communities for women ages 20€“35 and 55€“80, respectively [44].

Table 13.44: Relationship of calcium content of drinking water to the rate of fractures in rural Iowa

 Total number of women Number of women with fractures Number of women with fractures Total number of women Ages Agos 55-8

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