Table 4.
Model 1 |
Model 2 |
Model 3 |
||||
---|---|---|---|---|---|---|
IRR (95%CI) | P value | IRR (95%CI) | P value | IRR (95%CI) | P value | |
Discrimination Age (0-7) | 1.50 (1.03, 2.20) | 0.0362 | 1.59 (1.08, 2.33) | 0.0156 | 1.63 (1.11, 2.38) | 0.0111 |
Discrimination Age (8–12) | 0.97 (1.37, 1.30) | 0.8556 | 1.00 (0.74, 1.34) | 0.9687 | 1.00 (0.75, 1.34) | 0.9559 |
Discrimination Age (13–19) | 1.32 (1.07, 1.64) | 0.0107 | 1.37 (1.10, 1.69) | 0.0042 | 1.37 (1.10, 1.69) | 0.0039 |
Discrimination Age (>19) | 1.04 (1.22, 1.34) | 0.7221 | 1.02 (0.80, 1.30) | 0.9595 | 1.02 (0.79, 1.30) | 0.8379 |
Discrimination Age (None) | (Reference) | (Reference) | (Reference) | (Reference) | (Reference) | (Reference) |
Age (years) | 1.03 (1.03, 1.04) | <0.001 | 1.03 (1.03, 1.04) | <0.001 | 1.03 (1.03, 1.04) | <0.001 |
Sex (female vs. male) | 1.09 (0.95, 1.31) | 0.2169 | 1.07 (0.92, 1.25) | 0.3386 | 1.07 (0.91, 1.24) | 0.3899 |
Race (black vs. white) | 1.02 (0.98, 1.17) | 0.7949 | 0.95 (0.80, 1.13) | 0.5982 | 0.95 (0.80, 1.13) | 0.6074 |
Education (years) | 0.98 (0.96, 1.01) | 0.5982 | 0.99 (0.96, 1.02) | 0.4510 | ||
Income (dollars) | 1.00 (1.00, 1.00) | 0.0014 | 1.00 (1.00, 1.00) | 0.0022 | ||
Marital Status (married vs. single) | 1.30 (1.03, 1.64) | 0.0286 | 1.27 (1.01, 1.61) | 0.0453 | ||
Marital Status (divorced vs. single) | 1.20 (0.94, 1.71) | 0.1318 | 1.18 (0.92, 1.52) | 0.1791 | ||
Smoking (cigs/day) | 1.00 (0.99, 1.01) | 0.1651 | ||||
Physical activity (activities/week) | 0.98 (0.97, 1.00) | 0.1400 |
Notes on methodology: Results derive from negative binomial regression models adjusting for age, sex, race, marital status, income, education, smoking, and physical activity, and accounted for sampling weights. Multiple imputation was utilized to impute missing values, yielding a final analytic sample of 1,106. The imputation model included any independent or dependent variable used in any of our statistical models. Each analysis utilized 20 imputations.