Table 2.

Average alcohol intake indices as recorded via CNLab-A app (21 days), including hazard (n=286) and nonhazard (n=385) group totals and differences.

Drinking indices	Total, mean (SD)	Hazard, mean (SD)	Nonhazard, mean (SD)	t 669 a	95% CI	Pearson correlation r
Days drinking	5.32 (4.17)	6.90 (4.02)	4.15 (3.90)	8.91	2.14-3.35	.33
Total drinksb	24.26 (25.41)	37.45 (28.09)	14.47 (17.75)	12.16	19.27-26.70	.43
Drinks per day	1.20 (1.25)	1.86 (1.38)	0.71 (0.86)	12.45	0.97-1.33	.43
Drinks per day drinking	3.98 (3.02)	5.53 (2.92)	2.83 (2.56)	12.45	2.27-3.12	.43
Hourly rate of drinking	2.20 (2.09)	2.60 (2.14)	1.89 (2.00)	4.41	0.40-1.04	.17
Highest drink count in 2 hours	4.14 (3.15)	6.03 (3.37)	2.79 (2.09)	14.34	2.80-3.69	.48
4/4+ intakec	2.16 (2.58)	3.48 (2.83)	1.19 (1.86)	11.89	1.91-2.67	.42
6/6+ intake	1.31 (1.92)	2.26 (2.27)	0.61 (1.20)	11.14	1.35-1.94	.40
8/8+ intake	0.85 (1.44)	1.51 (1.70)	0.36 (0.94)	10.41	0.94-1.38	.37
12/12+ intake	0.31 (0.80)	0.58 (1.06)	0.10 (0.43)	7.26	0.35-0.61	.27
20/20+ intake	0.07 (0.31)	0.12 (0.41)	0.03 (0.20)	3.55	0.04-0.15	.14

^aP values all <.001.

^bDrinks refer to self-reported alcohol consumption in Australian standard drinks (1 drink=10 g alcohol).

^c4/4+ (and so forth) intake refers to occasions where 4 or more drinks were consumed in 1 episode.