Table 4.

Multilevel negative binomial model testing unplanned heavy drinking as a predictor of consequences

Predictor	Estimate (SE)	t
Level 2 (person level)
Female birth sex	0.15 (0.09)	1.72
Age	-0.13 (0.04)	-3.58***
Fraternity/sorority membership	0.12 (0.09)	1.24
Number of days with unplanned heavy drinking (person sum)	0.005 (0.015)	0.35
Level 1 (daily level)
Time trend (i.e., study quarter)	-0.19 (0.03)	-7.40***
Weekend	0.31 (0.06)	5.10***
Unplanned heavy drinking	0.75 (0.06)	12.31***

Notes: Analysis includes 3,717 days nested in 341 people.

^***p < .001.