Table 1.

Means, standard deviations, frequencies, and percentages by year for all continuous and categorical variables.

	Year 1		Year 2		Year 3		Year 4		Overall
Variable	M	SD	M	SD	M	SD	M	SD	M	SD
Age	18.50	0.43
Relationship Satisfaction	6.39	1.07	6.20	1.09	6.17	1.13	6.16	1.16	6.25	1.11
Partner Alcohol Use	3.85	1.52	4.06	1.44	4.22	1.46	4.35	1.47	4.08	1.48
Alcohol Use (raw)	219.00	488.00	219.00	469.00	253.00	481.00	291.00	509.00	235.29	485.06
Alcohol Use (log+1)	3.31	2.46	3.50	2.34	3.93	2.20	4.25	2.09	3.61	2.36
	Year 1		Year 2		Year 3		Year 4
Variable	N	%	N	%	N	%	N	%
Precollege IPT	2,895	38.22
College-Onset IPT	1,391	18.94	963	20.71	651	17.66	450	19.34
Relationship Status	2,190	39.44	1,982	41.90	1,713	45.70	1,113	46.98

Note. IPT = Interpersonal trauma; M = Mean; SD = Standard deviation. N = Frequency of respondents who positively endorsed that variable. % = Percentage of respondents who positively endorsed that variable. Means, standard deviations, frequencies, and percentages were calculated using cross-sectional data.