Table 2.
IRT and negative binomial regression parameter estimates: males aged 24–34
IRT model | Negative binomial model | |
---|---|---|
ln(income) | –0.19 (0.01) | –0.16 (0.02) |
Race | ||
Black | 0.08 (0.04) | 0.10 (0.06) |
Asian | 0.09 (0.06) | 0.08 (0.08) |
Hispanic | 0.06 (0.03) | –0.10 (0.05) |
Other | 0.15 (0.06) | 0.17 (0.08) |
Education | ||
High school graduate | 0.04 (0.04) | 0.09 (0.06) |
Some college | 0.19 (0.04) | 0.24 (0.06) |
College graduate | 0.26 (0.04) | 0.32 (0.07) |
Smoking behavior (cigarettes per day) | ||
<1 | 0.19 (0.03) | –0.04 (0.11) |
2–5 | 0.02 (0.08) | 0.21 (0.09) |
6–16 | 0.14 (0.04) | 0.14 (0.06) |
16–25 | 0.17 (0.04) | 0.14 (0.06) |
26–35 | 0.25 (0.07) | 0.17 (0.07) |
36+ | 0.87 (0.16) | 0.50 (0.16) |
Alcohol use (days per month) | ||
1–7 | –0.08 (0.03) | –0.09 (0.04) |
8–12 | –0.01 (0.04) | –0.12 (0.06) |
13–18 | –0.03 (0.06) | –0.17 (0.08) |
19–23 | 0.04 (0.05) | 0.04 (0.08) |
24–30 | 0.18 (0.06) | –0.02 (0.09) |
Dispersion parameter | σ 1.90(0.03) | b 1.05 (0.02) |