. Author manuscript; available in PMC: 2008 Jun 1.

Published in final edited form as: Prev Med. 2007 Mar 1;44(6):471–476. doi: 10.1016/j.ypmed.2007.02.018

Table 1.

Demographic characteristics of alcohol users^a and a sub-sample of consistent users^b.

Alcohol Users	2002 6^th grade Mean age = 11.8 (n= 578)	2003 6^th grade Mean age=12.3 (n= 825)	2004 7^th grade Mean age=13.3 (n=978)	2005 8^th grade Mean age=14.3 (n= 1328)
Race	N (%)	N (%)	N (%)	N (%)
African American	261 (45.3)	387 (47.1)	383 (39.2)	569 (42.9)
Hispanic	221 (38.4)	337 (40.1)	441 (45.1)	522 (39.3)
White	94 (16.3)	97 (11.8)	154 (15.7)	236 (17.8)
Gender
Male	330 (57.3)	445 (54.0)	483 (49.4)	643 (48.4)
Female	246 (42.7)	379 (46.0)	495 (50.6)	685 (51.6)

Consistent Users	(n=217)	(n=321)	(n=329)	(n=327)

Race
African American	81 (37.3)	116 (36.3)	112 (34.0)	110 (36.6)
Hispanic	100 (46.1)	161 (50.3)	166 (50.5)	161 (49.2)
White	36 (16.6)	43 (13.4)	51 (15.5)	56 (17.2)
Gender
Male	126 (58.1)	173 (53.9)	176 (53.5)	172 (52.6)
Female	91 (41.9)	148 (46.1)	153 (46.5)	155 (47.4)

Source: Project Northland Chicago, Chicago, Illinois, 2002–2005

self-reported past year alcohol users

past year alcohol use reported during at least 3 of 4 surveys