1. Male age group and race/ethnicity 2. Male age group and periodontal attachmen
ID: 3207364 • Letter: 1
Question
1. Male age group and race/ethnicity
2. Male age group and periodontal attachment loss
3. Male age group and BMI
4. Male age group and diabetes
5. Male age group and ever used estrogen
6. Male age group and percentage of sites bleeding
7. Male age group and dietary calcium intake
8. Male age group and serum 25(OH)D3 [vitamin D]
TABLE 1 Distribution of sample characteristicsin young and old men and women Men 20-49 y of age Variable (n 3474) Age 33 8' Race or ethnicity 1065 Non-Hispanic white 1056 300 Non-Hispanic black 1206 Mexican American 147(4) Other poverty income ratio 24 t 1.7 26.6 t 5.1 5S 2.0) Ewer used estrogen InCO] periodontal attachment loss (mm? 1.1 t 1.0 Percentage of sites bleeding 12 t 16 Dietary calcium intake Ogid 956 652 Serum 25(OHD, (nmolL) t SD (au such values) ?Significant difference between age groups in both seves. PExplanation / Answer
1. Male age group and race/ethnicity
Chi-squared test because both variables are categorical.
2. Male age group and periodontal attachment loss
T test because one variable (periodontal attachment loss) is quantitative.
3. Male age group and BMI
T test because one variable (BMI) is quantitative.
4. Male age group and diabetes
T test because one variable (diabetes) is quantitative.
5. Male age group and ever used estrogen
Chi-squared test because both variables are categorical.
6. Male age group and percentage of sites bleeding
T test because one variable (percentage of sites bleeding) is quantitative.
7. Male age group and dietary calcium intake
T test because one variable (dietary calcium intake) is quantitative.
8. Male age group and serum 25(OH)D3 [vitamin D]
T test because one variable (serum 25(OH)D3 [vitamin D]) is quantitative.
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