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Table 4 Groups of national raking margins and corresponding weighting methods

From: National weighting of data from the Behavioral Risk Factor Surveillance System (BRFSS)

Method

Margins

Categories

1

1–8

1: Sex by Age

2: Race/Ethnicity

3: Education

4: Marital Status

5: Home Ownership

6: Sex by Race/Ethnicity

7: Race/Ethnicity by Age

8: Phone Usage

2

1–8 + 9

1: Sex by Age

2: Race/Ethnicity

3: Education

4: Marital Status

5: Home Ownership

6: Sex by Race/Ethnicity

7: Race/Ethnicity by Age

8: Phone Usage

9: State

3

1–8 + state with 3 cross classifications

1: Sex by Age

2: Race/Ethnicity

3: Education

4: Marital Status

5: Home Ownership

6: Sex by Race/Ethnicity

7: Race/Ethnicity by Age

8: Phone Usage

9: State

10: Age by state

11: Sex by state

12: Race/ethnicity by state

4

1–8 with collapsed categoriesa

1: Sex by Age

2: Race/Ethnicity

3: Education

4: Marital Status

5: Home Ownership

6: Sex by Race/Ethnicity (collapsed categories)

7: Race/Ethnicity by Age (collapsed categories)

8: Phone Usage

5

1–8 + state with collapsed categories

1: Sex by Age

2: Race/Ethnicity

3: Education

4: Marital Status

5: Home Ownership

6: Sex by Race/Ethnicity (collapsed categories)

7: Race/Ethnicity by Age (collapsed categories)

8: Phone Usage

9: State

6

1–8 + state with 3 cross classifications with collapsed categoriesb

1: Sex by Age

2: Race/Ethnicity

3: Education

4: Marital Status

5: Home Ownership

6: Sex by Race/Ethnicity

7: Race/Ethnicity by Age

8: Phone Usage

9: State

10: Age by state (collapsed categories)

11: Sex by state

12: Race/ethnicity by state (collapsed categories)

  1. aIn Methods 4–6, margins 6 and 7 were collapsed to achieve minimum sample sizes of 300 or minimum sample percentages of 5.0%. Race/ethnicity in margin 6 was collapsed to non-Hispanic White and Other for males; non-Hispanic White, non-Hispanic Black, and Other for females. In margin 7, race/ethnicity was collapsed to non-Hispanic White and Other
  2. bMargins 10 and 12 were collapsed within region to achieve minimum sample sizes of 250 or minimum sample percentages of 5.0%. The age categories of 18–24 and 25–34 were collapsed together in margin 10 for 16 states. In margin 12, all race/ethnicity categories were collapsed together for two states (Maine and Vermont)