Table 3.

Associations Between Daily Drinking Motives and Daily Drinking Intensity Among U.S. Young Adults in 2019: Enhancement, Social and Coping Motives

	Binge (vs Moderate) ARR (95% CI) p	HID (vs Binge) ARR (95% CI) p
Level 1: Day
Motives that daya
Enhancement motives	3.00 (1.29, 6.98) 0.011	4.20 (1.56, 11.32) 0.005
Social motives	2.05 (1.23, 3.43) 0.006	1.92 (1.01, 3.64) 0.046
Coping motives	2.80 (0.98, 7.98) 0.054	0.58 (0.13, 2.47) 0.458
Weekendb (vs. weekday)	1.52 (1.04, 2.20) 0.029	2.63 (1.29, 5.36) 0.008
Burst dayc	1.03 (0.98, 1.08) 0.216	1.02 (0.95, 1.10) 0.542
Level 2: Person
Average motives across daysd
Enhancement motives	2.61 (1.55, 4.38) 0.000	1.04 (0.36, 2.96) 0.947
Social motives	3.27 (2.01, 5.34) 0.000	1.63 (0.77, 3.49) 0.200
Coping motives	0.61 (0.22, 1.72) 0.355	0.60 (0.19, 1.84) 0.370
Collegee (vs. other)	2.04 (1.02, 4.12) 0.045	1.15 (0.54, 2.48) 0.718
Male (vs. female)	0.70 (0.45, 1.09) 0.117	1.23 (0.67, 2.24) 0.503
Race/ethnicity (referent=White)
Hispanic	0.99 (0.40, 2.44) 0.985	1.13 (0.45, 2.83) 0.802
Other	0.45 (0.25, 0.81) 0.008	0.71 (0.22, 2.33) 0.570

Notes: Ns(unwtd.)=1,042 days from 484 individuals. ARR = adjusted relative risk ratio; CI=confidence interval. Drinking intensity coded using biological sex-specific thresholds: moderate drinking = <4 drinks for women and <5 drinks for men; binge drinking = 4-7 drinks for women and 5-9 drinks for men; high-intensity drinking = 8+ drinks for women and 10+ drinks for men. Bold font indicates associations with p<.05. All measures entered simultaneously.

^aPerson-centered as daily motive value minus personal motive mean.

^bWeekend defined as Thursday, Friday, or Saturday.

^cBurst day numbered continuously from 0-13.

^dGrand mean centered as person motive mean minus grand motive mean.

^eCollege defined as attending full-time at a 4-year college.