| _t | Haz. Ratio | Std. Err. | z | P>|z| | [95% Conf. Interval] | ||
| score | |||||||
| 2 | 1.539886 | .193302 | 3.44 | 0.001 | 1.20403 | 1.969428 | |
| 3 | 2.959512 | .5413436 | 5.93 | 0.000 | 2.06786 | 4.235638 | |
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