. 2019 Apr 17;21(4):e13050. doi: 10.2196/13050

Table 3.

Alcohol and other substance use trends and experiences.

Trends and experiences				Millennial sample (n=111), n (%)		Generation Z (n=53), n (%)		Chi-square test
Trends and experiences				Millennial sample (n=111), n (%)		Generation Z (n=53), n (%)		X² (df)	P value
Alcohol intake frequency								8.3 (4)	.14
	Never		38 (34.2)		22 (41.5)
	Monthly or less		37 (33.3)		21 (39.6)
	2-4 times a month		21 (18.9)		9 (17.0)
	2-3 times a week		10 (9.0)		0 (0.0)
	4 or more times a week		5 (4.5)		1 (1.9)
Heavy drinking frequency								1.9 (4)	.76
	Never		58 (52.3)		32 (60.4)
	Less than monthly		35 (31.5)		16 (30.2)
	Monthly		11 (9.9)		3 (5.7)
	Weekly		5 (4.5)		1 (1.9)
	Daily or almost daily		2 (1.8)		1 (1.9)
Illicit substance use								1.0 (1)	.31
	Yes		62 (55.9)		34 (64.2)
	No		49 (44.1)		19 (35.8)
Polysubstance use								3.8 (1)	.05
	Yes		35 (31.5)		25 (47.2)
	No		76 (68.5)		28 (52.8)
Can stop using substances at any time^b								9.9 (1)	.007^a
	Yes		59 (53.2)		41 (77.4)
	No		46 (41.4)		12 (22.6)
Experiences related to substance use
	Blackouts/flashbacks						0.9 (1)		.34
		Yes		33 (29.7)		12 (22.6)
		No		78 (70.3)		41 (77.4)
	Guilty feeling^b						1.8 (1)		.41
		Yes		54 (48.6)		24 (45.3)
		No		54 (48.6)		29 (54.7)
	Family complaints						10.0 (1)		.002^a
		Yes		62 (55.9)		43 (81.1)
		No		49 (44.1)		10 (18.9)
	Neglected family members						1.3 (1)		.25
		Yes		44 (39.6)		26 (49.1)
		No		67 (60.4)		27 (50.9)
	Engagement in illegal activity						4.0 (1)		.045^a
		Yes		54 (48.6)		17 (32.1)
		No		57 (51.4)		36 (67.9)
	Withdrawal symptoms						1.3 (1)		.25
		Yes		46 (41.4)		17 (32.1)
		No		65 (58.6)		36 (67.9)
	Medical problems						0.5 (1)		.46
		Yes		22 (19.8)		8 (15.1)
		No		89 (80.2)		45 (84.9)

^aSignificant at P<.05.

^bSample size varies slightly due to missing data.