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use a "combined" population. a. Complete Tables 5.23 and 5.24 using the population distributions from Study Ques- tion 1. b. What is the ratio of the age-adjusted outpatient department visit rate in the pop- ulation served by Hancock Regional Hospital Network to the age-adjusted outpa- tient department visit rate in the population served by Harrison Hospital System? c. Describe the difference between the ratios of crude and age-adjusted outpatient department visit rates. d. Do the ratios in part (c) differ from the adjusted rates calculated using the 2000 U.S. population as the standard? What is the significance of any differences? Standardizing Population Health Information 121 TABLE 5.23. AGE-SPECIFIC RATE AND EXPECTED CASES FOR HANCOCK REGIONAL HOSPITAL NETWORK USING COMBINED POPULATION. Age group Combined Age-specific Number of population rate expected cases Under 15 years 15-24 years 25-44 years 45-64 years 65-74 years 75 years and older Totals TABLE 5.24. AGE-SPECIFIC RATE AND EXPECTED CASES FOR HARRISON HOSPITAL SYSTEM USING COMBINED POPULATION. Age group Combined Age-specific Number of population rate expected cases Under 15 years 15-24 years 25-44 years 45-64 years 65-74 years 75 years and older Totals