Table 1.
Comparing the Individual-Level Characteristics between Behavioral Risk Factor Surveillance System (BRFSS) 2004–2005 Study Sample and the Full Sample
| BRFSS 2004–2005 Study Sample | BRFSS 2004–2005 Full Sample | |||||
|---|---|---|---|---|---|---|
| Variable | Pooled | Men | Women | Pooled | Men | Women |
| Number of individuals | 415,348 | 166,264 | 249,084 | 561,815 | 225,318 | 336,497 |
| BMI (kg/m2) | 26.982 | 27.429 | 26.526 | 26.957 | 27.410 | 26.499 |
| Obesity (%) | 0.236 | 0.241 | 0.232 | 0.234 | 0.238 | 0.230 |
| Morbid obesity (%) | 0.029 | 0.021 | 0.036 | 0.028 | 0.021 | 0.035 |
| Male | 0.505 | 0.503 | ||||
| Married (reference) | 0.588 | 0.618 | 0.559 | 0.583 | 0.614 | 0.552 |
| Divorced | 0.094 | 0.078 | 0.110 | 0.093 | 0.077 | 0.110 |
| Widowed | 0.064 | 0.027 | 0.101 | 0.065 | 0.028 | 0.102 |
| Separated | 0.021 | 0.016 | 0.027 | 0.022 | 0.016 | 0.028 |
| Never married | 0.189 | 0.214 | 0.163 | 0.194 | 0.218 | 0.169 |
| A member of an unmarried couple | 0.041 | 0.045 | 0.037 | 0.041 | 0.045 | 0.037 |
| Refused (marital status) | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
| Never attended school or only kindergarten (reference) | 0.001 | 0.001 | 0.002 | 0.002 | 0.002 | 0.002 |
| Grades 1–8 (elementary) | 0.037 | 0.039 | 0.035 | 0.036 | 0.037 | 0.035 |
| Grades 9–11 (some high school) | 0.073 | 0.073 | 0.072 | 0.072 | 0.072 | 0.072 |
| Grade 12 or GED (high school graduate) | 0.278 | 0.270 | 0.287 | 0.280 | 0.273 | 0.288 |
| College 1–3 years (some college or technical school) | 0.271 | 0.255 | 0.288 | 0.266 | 0.252 | 0.281 |
| College 4 years or more (college graduate) | 0.338 | 0.360 | 0.316 | 0.343 | 0.364 | 0.321 |
| Refused (education) | 0.001 | 0.001 | 0.001 | 0.001 | 0.002 | 0.001 |
| Less than $10,000 (reference) | 0.046 | 0.036 | 0.057 | 0.047 | 0.036 | 0.057 |
| $10,000 to less than $15,000 | 0.047 | 0.039 | 0.055 | 0.047 | 0.039 | 0.055 |
| $15,000 to less than $20,000 | 0.065 | 0.058 | 0.071 | 0.065 | 0.057 | 0.072 |
| $20,000 to less than $25,000 | 0.079 | 0.076 | 0.082 | 0.079 | 0.076 | 0.081 |
| $25,000 to less than $35,000 | 0.110 | 0.110 | 0.110 | 0.110 | 0.109 | 0.110 |
| $35,000 to less than $50,000 | 0.142 | 0.148 | 0.136 | 0.142 | 0.148 | 0.135 |
| $50,000 to less than $75,000 | 0.157 | 0.167 | 0.147 | 0.156 | 0.165 | 0.146 |
| $75,000 or more | 0.237 | 0.267 | 0.206 | 0.237 | 0.268 | 0.206 |
| Don't know/not sure (income) | 0.056 | 0.044 | 0.068 | 0.058 | 0.046 | 0.070 |
| Refused (income) | 0.061 | 0.055 | 0.067 | 0.061 | 0.055 | 0.067 |
| Employed for wages (reference) | 0.535 | 0.594 | 0.474 | 0.534 | 0.592 | 0.476 |
| Self-employed | 0.087 | 0.110 | 0.064 | 0.087 | 0.111 | 0.063 |
| Out of work for more than 1 year | 0.021 | 0.020 | 0.022 | 0.022 | 0.020 | 0.023 |
| Out of work for less that 1 year | 0.031 | 0.034 | 0.028 | 0.031 | 0.034 | 0.028 |
| A homemaker | 0.074 | 0.003 | 0.146 | 0.073 | 0.003 | 0.144 |
| A student | 0.047 | 0.045 | 0.049 | 0.048 | 0.046 | 0.050 |
| Retired | 0.159 | 0.153 | 0.165 | 0.158 | 0.152 | 0.164 |
| Unable to work | 0.044 | 0.038 | 0.050 | 0.045 | 0.039 | 0.050 |
| Refused (employment status) | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
| White only, non-Hispanic (reference) | 0.681 | 0.676 | 0.687 | 0.678 | 0.674 | 0.682 |
| Black only, non-Hispanic | 0.101 | 0.093 | 0.110 | 0.105 | 0.095 | 0.114 |
| Asian only, non-Hispanic | 0.028 | 0.031 | 0.025 | 0.028 | 0.032 | 0.025 |
| Native Hawaiian or other Pacific Islander only, Non-Hispanic | 0.004 | 0.004 | 0.003 | 0.004 | 0.004 | 0.003 |
| American Indian or Alaskan native only, non-Hispanic | 0.010 | 0.011 | 0.010 | 0.010 | 0.010 | 0.009 |
| Other race only, non-Hispanic | 0.007 | 0.009 | 0.006 | 0.008 | 0.010 | 0.007 |
| Multiracial, non-Hispanic | 0.015 | 0.015 | 0.014 | 0.014 | 0.015 | 0.014 |
| Hispanic | 0.146 | 0.154 | 0.139 | 0.145 | 0.151 | 0.139 |
| Don't know/not sure/refused (race/ethnicity) | 0.007 | 0.008 | 0.006 | 0.007 | 0.009 | 0.006 |
| Age (year) | 0.821 | 0.788 | 0.854 | 45.638 | 44.404 | 46.891 |
| Number of children | 45.582 | 44.353 | 46.839 | 0.808 | 0.775 | 0.841 |
| Household size | 3.078 | 3.121 | 3.035 | 3.062 | 3.106 | 3.016 |
Note. For the age variable, missing values resulted in slightly lower number of observations. The mean age is provided for reference but not used in the regressions. A set of imputed 5-year categorical indicators of age is used in the regressions. All estimates are weighted.