[yrbs16.txt, updated 12/06] Percentage of students who had 5 or more drinks of alcohol in a row on 1 or more of the past 30 days, by geographic area according to sex: YRBS, 1991-2005, biennially. -------------------------------------------------------------------------- Geographic Area/Year Total Female Male -------------------------------------------------------------------------- National 2005 25.5 23.5 27.5 CI (23.3-27.7) (21.2-25.8) (24.9-30.1) 2003 28.3 27.5 29.0 CI (26.3-30.3) (25.4-29.6) (26.9-31.1) 2001 29.9 26.4 33.5 CI (27.9-31.9) (24.5-28.3) (30.6-36.4) 1999 31.5 28.1 34.9 CI (29.6-33.4) (26.0-30.2) (32.2-37.6) 1997 33.4 28.6 37.3 CI (31.3-35.5) (25.8-31.4) (34.9-39.7) 1995 32.6 28.6 36.2 CI (29.6-35.6) (24.8-32.4) (33.3-39.1) 1993 30.0 26.0 33.7 CI (28.1-31.9) (23.9-28.1) (31.5-35.9) 1991 31.3 25.9 36.5 CI (28.0-34.6) (23.4-28.4) (32.3-40.7) State Alabama 2005 23.8 19.1 29.1 CI (20.5-27.1) (15.7-22.5) (24.3-33.9) 2003 24.2 21.9 26.4 CI (20.6-27.8) (17.0-26.8) (21.9-30.9) 2001 25.0 22.1 27.8 CI (21.3-28.7) (18.1-26.1) (23.4-32.2) 1999 29.0 23.6 34.3 CI (25.9-32.1) (20.2-27.0) (30.3-38.3) 1997 28.5 24.4 32.6 CI (25.9-31.1) (21.9-26.9) (29.4-35.8) 1995 25.0 19.9 30.1 CI (23.3-26.7) (17.8-22.0) (28.2-32.0) 1993 25.4 20.9 30.0 CI (23.5-27.3) (18.8-23.0) (27.2-32.8) 1991 30.3 22.6 38.1 CI (28.0-32.6) (19.8-25.4) (34.3-41.9) Alaska 2005 - - - CI - - - 2003 26.5 23.4 29.1 CI (22.4-30.6) (18.3-28.5) (24.7-33.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Arizona 2005 30.8 30.0 31.5 CI (27.5-34.1) (26.1-33.9) (28.0-35.0) 2003 33.6 31.8 35.5 CI (30.1-37.1) (26.9-36.7) (31.0-40.0) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Arkansas 2005 29.7 28.8 30.2 CI (26.6-32.8) (25.0-32.6) (26.0-34.4) 2003 - - - CI - - - 2001 30.0 23.2 36.7 CI (25.4-34.6) (19.2-27.2) (30.3-43.1) 1999 33.4 29.6 37.1 CI (30.0-36.8) (24.3-34.9) (33.5-40.7) 1997 33.1 26.3 39.7 CI (30.0-36.2) (22.5-30.1) (35.6-43.8) 1995 32.2 26.1 38.2 CI (29.3-35.1) (23.2-29.0) (34.6-41.8) 1993 - - - CI - - - 1991 - - - CI - - - Colorado 2005 30.6 33.4 27.9 CI (24.3-36.9) (24.7-42.1) (22.0-33.8) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 35.1 31.7 38.3 CI (31.4-38.8) (28.3-35.1) (33.4-43.2) 1993 - - - CI - - - 1991 - - - CI - - - Connecticut 2005 27.8 26.6 28.7 CI (24.2-31.4) (21.9-31.3) (24.9-32.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 31.2 27.9 34.5 CI (28.1-34.3) (23.9-31.9) (31.3-37.7) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Delaware 2005 24.4 22.3 26.6 CI (22.2-26.6) (19.6-25.0) (23.4-29.8) 2003 26.6 23.9 29.3 CI (24.4-28.8) (21.2-26.6) (26.1-32.5) 2001 27.3 23.3 31.4 CI (25.2-29.4) (20.6-26.0) (28.4-34.4) 1999 27.1 25.0 29.3 CI (24.5-29.7) (21.6-28.4) (25.4-33.2) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - District of Columbia 2005 9.2 8.5 10.1 CI (7.5-10.9) (6.7-10.3) (7.7-12.5) 2003 10.3 8.0 12.9 CI (8.4-12.2) (6.1-9.9) (9.8-16.0) 2001 - - - CI - - - 1999 14.9 12.6 17.5 CI (12.9-16.9) (10.5-14.7) (14.6-20.4) 1997 18.3 14.0 22.5 CI (15.8-20.8) (11.3-16.7) (18.4-26.6) 1995 - - - CI - - - 1993 16.4 13.8 19.6 CI (14.0-18.8) (11.4-26.2) (16.0-23.2) 1991 - - - CI - - - Florida 2005 21.3 20.2 22.5 CI (19.4-23.2) (18.2-22.2) (19.8-25.2) 2003 23.2 20.5 25.9 CI (21.4-25.0) (18.5-22.5) (22.9-28.9) 2001 24.8 23.3 26.3 CI (22.7-26.9) (20.8-25.8) (23.6-29.0) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Georgia 2005 20.8 19.9 21.6 CI (17.0-24.6) (15.6-24.2) (16.7-26.5) 2003 19.8 16.4 23.2 CI (17.1-22.5) (13.3-19.5) (19.6-26.8) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Hawaii 2005 18.8 18.1 19.3 CI (15.4-22.2) (14.5-21.7) (15.5-23.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 26.8 23.8 30.0 CI (23.1-30.5) (20.3-27.3) (25.5-34.5) 1997 25.1 20.6 29.1 CI (21.7-28.5) (16.3-24.9) (24.7-33.5) 1995 24.0 20.2 27.9 CI (20.3-27.7) (16.6-23.8) (22.8-33.0) 1993 22.7 20.9 24.3 CI (19.4-26.0) (17.0-24.8) (20.1-28.5) 1991 - - - CI - - - Idaho 2005 28.3 27.3 29.3 CI (24.0-32.6) (23.1-31.5) (23.8-34.8) 2003 23.4 21.7 25.0 CI (18.9-27.9) (17.2-26.2) (20.2-29.8) 2001 27.2 24.0 30.2 CI (22.5-31.9) (19.7-28.3) (24.5-35.9) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Indiana 2005 24.6 21.7 27.4 CI (20.5-28.7) (16.6-26.8) (23.1-31.7) 2003 28.9 27.8 29.9 CI (26.2-31.6) (24.5-31.1) (25.7-34.1) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Iowa 2005 31.0 28.4 33.6 CI (25.9-36.1) (23.0-33.8) (27.6-39.6) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 37.5 32.0 42.9 CI (33.8-41.2) (28.0-36.0) (38.6-47.2) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Kansas 2005 29.0 24.5 33.1 CI (25.2-32.8) (20.8-28.2) (28.0-38.2) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Kentucky 2005 25.2 23.4 26.9 CI (22.4-28.0) (19.3-27.5) (24.1-29.7) 2003 32.8 32.3 33.4 CI (29.4-36.2) (28.3-36.3) (29.0-37.8) 2001 - - - CI - - - 1999 - - - CI - - - 1997 37.1 30.4 43.4 CI (32.5-41.7) (26.5-34.3) (37.8-49.0) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Louisiana 2005 - - - CI - - - 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 32.7 27.4 37.9 CI (29.8-35.6) (24.1-30.7) (34.5-41.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Maine 2005 25.2 23.2 27.5 CI (21.6-28.8) (19.0-27.4) (23.2-31.8) 2003 27.3 22.6 31.5 CI (23.7-30.9) (16.9-28.3) (27.8-35.2) 2001 31.5 29.1 33.9 CI (26.9-36.1) (23.3-34.9) (29.4-38.4) 1999 - - - CI - - - 1997 33.8 30.5 36.8 CI (29.7-37.9) (26.2-34.8) (32.4-41.2) 1995 30.9 28.8 33.1 CI (28.0-33.8) (25.9-31.7) (29.1-37.1) 1993 - - - CI - - - 1991 - - - CI - - - Maryland 2005 20.8 19.5 22.1 CI (16.7-24.9) (14.6-24.4) (17.3-26.9) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Massachusetts 2005 26.5 24.7 28.2 CI (23.6-29.4) (21.6-27.8) (24.9-31.5) 2003 26.9 25.2 28.6 CI (24.3-29.5) (21.8-28.6) (25.9-31.3) 2001 32.7 28.9 36.4 CI (30.6-34.8) (26.1-31.7) (34.1-38.7) 1999 32.6 28.5 36.6 CI (30.4-34.8) (26.0-31.0) (33.8-39.4) 1997 32.7 29.4 35.8 CI (30.2-35.2) (26.7-32.1) (32.4-39.2) 1995 33.4 28.0 38.7 CI (31.5-35.3) (25.8-30.2) (36.3-41.1) 1993 27.5 23.1 31.8 CI (24.9-30.1) (20.5-25.7) (28.3-35.3) 1991 - - - CI - - - Michigan 2005 22.5 22.1 22.7 CI (19.4-25.6) (19.3-24.9) (18.1-27.3) 2003 27.4 26.8 27.9 CI (24.1-30.7) (23.9-29.7) (23.1-32.7) 2001 29.3 27.9 30.5 CI (25.5-33.1) (24.4-31.4) (26.0-35.0) 1999 29.9 26.0 33.7 CI (27.0-32.8) (22.1-29.9) (30.2-37.2) 1997 32.4 29.2 35.7 CI (27.9-36.9) (23.3-35.1) (30.9-40.5) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Mississippi 2005 - - - CI - - - 2003 24.6 22.1 27.3 CI (21.4-27.8) (18.7-25.5) (23.5-31.1) 2001 22.1 18.5 25.7 CI (19.2-25.0) (14.8-22.2) (21.3-30.1) 1999 25.4 20.6 30.3 CI (21.0-29.8) (15.7-25.5) (25.5-35.1) 1997 23.9 19.2 28.9 CI (20.9-26.9) (14.8-23.6) (25.5-32.3) 1995 29.9 19.8 40.3 CI (26.4-33.4) (15.2-24.4) (34.5-46.1) 1993 26.6 18.6 34.9 CI (22.6-30.6) (14.6-22.6) (30.4-39.4) 1991 - - - CI - - - Missouri 2005 24.9 23.2 26.4 CI (20.8-29.0) (18.8-27.6) (21.2-31.6) 2003 30.5 30.5 30.5 CI (26.4-34.6) (25.6-35.4) (25.6-35.4) 2001 34.1 31.5 36.8 CI (29.3-38.9) (26.1-36.9) (31.7-41.9) 1999 32.0 28.5 35.6 CI (26.2-37.8) (22.4-34.6) (29.5-41.7) 1997 37.9 37.4 38.2 CI (32.3-43.5) (31.1-43.7) (32.9-43.5) 1995 39.9 32.7 46.8 CI (37.6-42.2) (29.3-36.1) (44.5-49.1) 1993 - - - CI - - - 1991 - - - CI - - - Montana 2005 34.4 32.7 36.0 CI (31.4-37.4) (29.1-36.3) (32.3-39.7) 2003 37.3 34.9 39.1 CI (34.2-40.4) (31.6-38.2) (35.3-42.9) 2001 41.4 39.3 43.5 CI (38.6-44.2) (35.6-43.0) (39.7-47.3) 1999 43.6 38.8 47.9 CI (40.7-46.5) (35.4-42.2) (43.6-52.2) 1997 44.1 40.4 47.6 CI (41.6-46.6) (37.2-43.6) (43.7-51.5) 1995 43.1 38.5 47.5 CI (40.2-46.0) (35.3-41.7) (43.7-51.3) 1993 41.4 39.4 43.4 CI (37.6-45.2) (35.1-43.7) (38.9-47.9) 1991 - - - CI - - - Nebraska 2005 29.8 27.3 32.2 CI (27.3-32.3) (24.7-29.9) (28.7-35.7) 2003 32.2 31.6 32.6 CI (29.7-34.7) (28.3-34.9) (29.3-35.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Nevada 2005 24.8 22.8 26.7 CI (22.0-27.6) (19.3-26.3) (22.6-30.8) 2003 27.8 28.9 26.7 CI (25.3-30.3) (25.3-32.5) (23.3-30.1) 2001 32.4 31.8 33.1 CI (28.7-36.1) (27.4-36.2) (27.7-38.5) 1999 35.6 32.3 38.5 CI (32.5-38.7) (28.4-36.2) (34.5-42.5) 1997 32.0 30.2 33.7 CI (28.7-35.3) (25.7-34.7) (28.6-38.8) 1995 33.1 31.0 35.4 CI (29.8-36.4) (27.1-34.9) (30.9-39.9) 1993 31.8 29.2 34.4 CI (28.7-34.9) (25.3-33.1) (30.4-38.4) 1991 - - - CI - - - New Hampshire 2005 28.4 27.6 29.4 CI (24.5-32.3) (23.5-31.7) (24.1-34.7) 2003 30.6 27.9 33.5 CI (25.9-35.3) (23.2-32.6) (27.4-39.6) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 32.9 28.1 37.6 CI (30.2-35.6) (25.1-31.1) (33.8-41.4) 1993 30.8 26.8 34.5 CI (28.7-32.9) (24.1-29.5) (31.2-37.8) 1991 - - - CI - - - New Jersey 2005 27.2 27.8 26.6 CI (22.0-32.4) (22.3-33.3) (20.0-33.2) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New Mexico 2005 28.6 27.2 29.5 CI (25.6-31.6) (24.0-30.4) (25.9-33.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New York 2005 23.9 21.4 26.2 CI (21.4-26.4) (18.3-24.5) (23.2-29.2) 2003 25.3 23.0 27.5 CI (22.7-27.9) (20.5-25.5) (24.0-31.0) 2001 - - - CI - - - 1999 28.8 24.9 32.6 CI (26.1-31.5) (22.4-27.4) (28.4-36.8) 1997 28.9 24.3 33.5 CI (25.9-31.9) (21.1-27.5) (29.5-37.5) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - North Carolina 2005 23.1 20.2 26.0 CI (19.1-27.1) (16.8-23.6) (21.0-31.0) 2003 21.0 16.7 25.1 CI (16.2-25.8) (13.1-20.3) (18.1-32.1) 2001 20.7 18.7 22.8 CI (18.0-23.4) (15.5-21.9) (19.1-26.5) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 23.0 16.2 30.0 CI (20.3-25.7) (13.8-18.6) (26.0-34.0) 1991 - - - CI - - - North Dakota 2005 33.8 31.2 36.2 CI (30.1-37.5) (26.5-35.9) (31.3-41.1) 2003 39.5 38.7 40.1 CI (35.6-43.4) (33.9-43.5) (34.8-45.4) 2001 41.5 37.2 45.5 CI (37.9-45.1) (32.5-41.9) (41.2-49.8) 1999 46.2 42.3 50.0 CI (42.3-50.1) (38.0-46.6) (45.5-54.5) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Ohio 2005 26.1 26.3 26.0 CI (22.4-29.8) (22.0-30.6) (21.5-30.5) 2003 26.6 22.5 30.4 CI (21.7-31.5) (18.6-26.4) (23.3-37.5) 2001 - - - CI - - - 1999 37.4 34.8 40.1 CI (33.6-41.2) (31.0-38.6) (35.4-44.8) 1997 30.3 27.1 33.6 CI (26.7-33.9) (23.3-30.9) (29.5-37.7) 1995 - - - CI - - - 1993 30.3 28.3 32.0 CI (27.2-33.4) (24.6-32.0) (28.7-35.3) 1991 - - - CI - - - Oklahoma 2005 26.6 24.3 28.9 CI (23.6-29.6) (21.2-27.4) (25.0-32.8) 2003 34.0 28.5 39.2 CI (30.8-37.2) (24.0-33.0) (34.5-43.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Rhode Island 2005 24.5 21.9 27.1 CI (22.4-26.6) (19.1-24.7) (24.1-30.1) 2003 26.8 25.2 28.0 CI (23.6-30.0) (21.6-28.8) (24.5-31.5) 2001 30.7 26.4 34.8 CI (27.8-33.6) (22.3-30.5) (31.0-38.6) 1999 - - - CI - - - 1997 32.2 28.2 36.2 CI (28.3-36.1) (23.9-32.5) (31.8-40.6) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - South Carolina 2005 23.6 21.2 25.8 CI (20.6-26.6) (17.3-25.1) (21.4-30.2) 2003 - - - CI - - - 2001 - - - CI - - - 1999 25.4 20.6 30.4 CI (23.5-27.3) (18.4-22.8) (28.1-32.7) 1997 24.8 20.8 28.8 CI (22.8-26.8) (18.7-22.9) (26.0-31.6) 1995 27.3 20.8 33.7 CI (25.1-29.5) (18.4-23.2) (31.0-36.4) 1993 25.0 20.4 29.5 CI (23.2-26.8) (18.2-22.6) (27.2-31.8) 1991 27.0 21.3 32.6 CI (25.1-28.9) (19.3-23.3) (29.7-35.5) South Dakota 2005 34.2 31.0 37.3 CI (30.5-37.9) (26.8-35.2) (31.5-43.1) 2003 38.3 36.4 40.0 CI (33.4-43.2) (30.3-42.5) (34.6-45.4) 2001 36.5 33.5 39.4 CI (32.0-41.0) (28.0-39.0) (34.1-44.7) 1999 46.1 43.1 49.0 CI (39.9-52.3) (36.9-49.3) (41.9-56.1) 1997 45.2 40.5 49.9 CI (41.4-49.0) (35.4-45.6) (44.0-55.8) 1995 39.5 35.5 43.3 CI (32.0-47.0) (28.3-42.7) (35.1-51.5) 1993 44.3 38.0 50.5 CI (40.0-48.6) (31.8-44.2) (46.7-54.3) 1991 41.0 40.3 41.8 CI (33.6-48.4) (31.8-48.8) (34.7-48.9) Tennessee 2005 24.9 22.1 27.6 CI (22.1-27.7) (19.1-25.1) (23.4-31.8) 2003 25.5 21.6 29.3 CI (21.4-29.6) (18.9-24.3) (23.6-35.0) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Texas 2005 29.6 26.2 33.1 CI (26.4-32.8) (22.6-29.8) (29.6-36.6) 2003 25.7 23.7 27.4 CI (22.9-28.5) (20.8-26.6) (23.1-31.7) 2001 31.3 27.9 34.4 CI (28.8-33.8) (25.3-30.5) (31.0-37.8) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Utah 2005 8.8 8.7 8.9 CI (6.4-11.2) (5.5-11.9) (5.6-12.2) 2003 14.3 13.6 14.8 CI (11.2-17.4) (10.5-16.7) (10.3-19.3) 2001 10.9 7.6 14.0 CI (7.4-14.4) (3.6-11.6) (9.8-18.2) 1999 15.8 12.8 18.2 CI (11.6-20.0) (8.9-16.7) (13.0-23.4) 1997 16.5 14.3 18.1 CI (13.4-19.6) (10.2-18.4) (14.9-21.3) 1995 15.2 14.4 16.1 CI (11.8-18.6) (10.4-18.4) (12.6-19.6) 1993 16.7 15.3 18.1 CI (14.8-18.6) (13.0-17.6) (15.7-20.5) 1991 16.6 13.9 19.3 CI (13.3-19.9) (10.7-17.1) (15.5-23.1) Vermont 2005 24.9 20.9 28.7 CI (22.0-27.8) (18.4-23.4) (25.4-32.0) 2003 26.4 24.5 28.2 CI (23.9-28.9) (22.6-26.4) (24.9-31.5) 2001 29.0 26.0 31.9 CI (25.7-32.3) (22.3-29.7) (28.8-35.0) 1999 32.4 27.5 37.0 CI (29.8-35.0) (24.9-30.1) (33.9-40.1) 1997 35.3 30.9 39.5 CI (31.5-39.1) (26.8-35.0) (35.7-43.3) 1995 36.0 30.3 41.5 CI (33.1-38.9) (26.2-34.4) (38.9-44.1) 1993 31.4 26.9 35.7 CI (29.0-33.8) (24.3-29.5) (33.1-38.3) 1991 - - - CI - - - West Virginia 2005 28.8 25.3 32.2 CI (25.6-32.0) (21.1-29.5) (27.7-36.7) 2003 33.5 32.7 34.2 CI (29.3-37.7) (26.6-38.8) (28.0-40.4) 2001 - - - CI - - - 1999 35.5 31.8 38.9 CI (31.7-39.3) (26.5-37.1) (33.9-43.9) 1997 38.7 31.8 46.0 CI (34.7-42.7) (28.1-35.5) (40.8-51.2) 1995 38.8 31.3 46.0 CI (36.7-40.9) (28.5-34.1) (42.6-49.4) 1993 39.4 34.1 44.7 CI (36.8-42.0) (31.4-36.8) (41.3-48.1) 1991 - - - CI - - - Wisconsin 2005 31.0 29.1 32.9 CI (28.2-33.8) (25.3-32.9) (29.5-36.3) 2003 28.2 25.8 30.3 CI (25.2-31.2) (22.4-29.2) (25.8-34.8) 2001 34.2 30.9 37.4 CI (30.8-37.6) (27.4-34.4) (32.9-41.9) 1999 34.4 29.4 39.1 CI (30.9-37.9) (25.5-33.3) (33.5-44.7) 1997 31.0 26.1 35.9 CI (26.8-35.2) (21.1-31.1) (31.5-40.3) 1995 - - - CI - - - 1993 29.0 26.0 31.9 CI (26.3-31.7) (22.9-29.1) (28.9-34.9) 1991 - - - CI - - - Wyoming 2005 32.0 29.5 34.2 CI (29.4-34.6) (26.1-32.9) (30.8-37.6) 2003 34.6 33.8 35.7 CI (30.3-38.9) (29.0-38.6) (30.2-41.2) 2001 38.1 33.5 42.5 CI (35.4-40.8) (30.5-36.5) (38.7-46.3) 1999 39.5 35.4 43.4 CI (36.3-42.7) (32.0-38.8) (38.9-47.9) 1997 40.6 37.0 44.0 CI (37.2-44.0) (32.9-41.1) (39.9-48.1) 1995 38.8 34.5 42.9 CI (35.2-42.4) (30.3-39.0) (38.4-47.4) 1993 - - - CI - - - 1991 - - - CI - - - City Baltimore 2005 11.5 8.6 14.9 CI (9.9-13.1) (7.0-10.2) (12.3-17.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Boston 2005 15.4 13.4 17.3 CI (13.2-17.6) (10.3-16.5) (14.0-20.6) 2003 15.7 16.1 15.5 CI (13.4-18.0) (13.1-19.1) (12.5-18.5) 2001 18.1 15.6 20.6 CI (15.5-20.7) (12.5-18.7) (17.0-24.2) 1999 17.4 13.1 21.9 CI (14.9-19.9) (9.9-16.3) (18.2-25.6) 1997 18.2 14.9 21.4 CI (15.5-20.9) (11.7-18.1) (18.1-24.7) 1995 18.4 14.4 22.4 CI (16.3-20.5) (11.3-17.5) (19.2-25.6) 1993 20.3 15.1 25.6 CI (17.9-22.7) (12.1-18.1) (22.0-29.2) 1991 - - - CI - - - Broward County, FL 2005 17.6 16.0 19.1 CI (15.0-20.2) (13.1-18.9) (15.3-22.9) 2003 20.2 20.3 20.1 CI (18.0-22.4) (17.4-23.2) (17.5-22.7) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Charlotte-Mecklenburg, NC 2005 19.6 17.5 21.6 CI (16.9-22.3) (14.1-20.9) (18.5-24.7) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Chicago 2005 22.2 21.0 23.6 CI (19.0-25.4) (16.5-25.5) (19.8-27.4) 2003 20.6 18.2 23.1 CI (16.3-24.9) (13.5-22.9) (16.2-30.0) 2001 21.4 19.6 23.0 CI (17.4-25.4) (15.5-23.7) (17.2-28.8) 1999 19.3 18.3 20.2 CI (16.6-22.0) (15.6-21.0) (14.7-25.7) 1997 19.9 16.6 24.1 CI (17.2-22.6) (14.7-18.5) (18.5-29.7) 1995 17.8 15.6 20.1 CI (15.0-20.6) (12.3-18.9) (16.4-23.8) 1993 18.1 15.3 21.0 CI (15.6-20.6) (12.9-17.7) (16.6-25.4) 1991 18.9 14.4 23.8 CI (16.0-21.8) (11.6-17.2) (19.3-28.3) Dallas 2005 21.9 18.1 25.8 CI (18.9-24.9) (15.0-21.2) (21.7-29.9) 2003 20.8 18.5 23.4 CI (18.0-23.6) (15.0-22.0) (20.0-26.8) 2001 20.7 20.7 20.8 CI (18.1-23.3) (17.6-23.8) (16.8-24.8) 1999 21.1 18.5 23.7 CI (18.6-23.6) (15.9-21.1) (20.0-27.4) 1997 20.6 18.0 23.2 CI (18.2-23.0) (15.2-20.8) (19.5-26.9) 1995 23.9 19.0 29.1 CI (22.0-25.8) (16.7-21.3) (25.9-32.3) 1993 24.7 19.3 30.7 CI (23.3-26.1) (17.7-20.9) (27.9-33.5) 1991 22.9 18.3 27.7 CI (21.1-24.7) (16.3-20.3) (25.8-29.6) DeKalb County, GA 2005 9.0 8.2 9.7 CI (7.7-10.3) (6.3-10.1) (7.8-11.6) 2003 10.1 9.4 10.7 CI (8.7-11.5) (7.3-11.5) (8.9-12.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Detroit 2005 8.6 9.5 7.2 CI (6.9-10.3) (7.5-11.5) (4.5-9.9) 2003 10.0 10.5 9.4 CI (7.9-12.1) (7.9-13.1) (6.9-11.9) 2001 - - - CI - - - 1999 12.6 11.5 14.0 CI (10.3-14.9) (8.7-14.3) (11.6-16.4) 1997 14.9 12.4 18.1 CI (13.2-16.6) (10.7-14.1) (15.2-21.0) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Hillsborough County, FL 2005 22.5 19.6 25.2 CI (19.7-25.3) (16.1-23.1) (21.2-29.2) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Ft. Lauderdale 2005 - - - CI - - - 2003 - - - CI - - - 2001 21.1 19.4 22.5 CI (19.0-23.2) (16.9-21.9) (19.3-25.7) 1999 20.1 18.7 21.6 CI (16.9-23.3) (14.9-22.5) (17.7-25.5) 1997 22.6 18.4 26.8 CI (19.1-26.1) (15.0-21.8) (22.2-31.4) 1995 17.4 16.3 18.6 CI (14.9-19.9) (13.1-19.5) (15.5-21.7) 1993 20.3 15.9 24.7 CI (17.6-23.0) (12.9-18.9) (21.0-28.4) 1991 22.0 17.2 27.8 CI (18.3-25.7) (13.3-21.1) (22.8-32.8) Houston 2005 - - - CI - - - 2003 - - - CI - - - 2001 25.4 24.1 26.9 CI (22.5-28.3) (20.2-28.0) (22.8-31.0) 1999 20.5 17.2 23.4 CI (17.8-23.2) (13.9-20.5) (19.8-27.0) 1997 24.0 19.3 29.6 CI (18.7-29.3) (14.0-24.6) (23.0-36.2) 1995 23.0 18.4 27.4 CI (18.8-27.2) (12.6-24.2) (23.2-31.6) 1993 - - - CI - - - 1991 - - - CI - - - Los Angeles 2005 19.7 20.6 18.6 CI (17.2-22.2) (16.8-24.4) (14.9-22.3) 2003 21.8 20.0 23.6 CI (17.2-26.4) (15.4-24.6) (17.4-29.8) 2001 21.9 23.0 20.5 CI (19.3-24.5) (18.6-27.4) (18.3-22.7) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Memphis 2005 13.0 13.0 13.0 CI (10.9-15.1) (10.5-15.5) (9.9-16.1) 2003 10.1 9.2 11.0 CI (8.5-11.7) (7.2-11.2) (8.5-13.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Miami 2005 18.7 17.6 19.6 CI (16.6-20.8) (15.1-20.1) (16.8-22.4) 2003 16.8 13.6 19.9 CI (14.8-18.8) (11.4-15.8) (16.8-23.0) 2001 19.1 15.5 22.7 CI (17.1-21.1) (12.8-18.2) (20.2-25.2) 1999 19.5 16.6 22.3 CI (16.5-22.5) (13.3-19.9) (18.5-26.1) 1997 21.7 17.4 25.9 CI (18.1-25.3) (14.5-20.3) (21.0-30.8) 1995 16.9 11.1 22.4 CI (14.5-19.3) (8.5-13.7) (19.0-25.8) 1993 14.3 11.0 17.6 CI (13.1-15.5) (8.1-13.9) (14.6-20.6) 1991 17.2 14.5 19.9 CI (13.4-21.0) (11.0-18.0) (15.3-24.5) Milwaukee 2005 15.2 14.7 15.3 CI (12.9-17.5) (12.1-17.3) (11.8-18.8) 2003 16.6 12.9 20.5 CI (13.7-19.5) (10.4-15.4) (16.0-25.0) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New Orleans 2005 12.5 12.1 12.5 CI (10.8-14.2) (9.3-14.9) (9.3-15.7) 2003 13.6 12.1 15.3 CI (11.4-15.8) (9.2-15.0) (12.1-18.5) 2001 - - - CI - - - 1999 15.2 13.3 17.5 CI (13.1-17.3) (10.7-15.9) (14.8-20.2) 1997 18.8 15.9 22.1 CI (16.4-21.2) (13.1-18.7) (18.3-25.9) 1995 17.3 14.9 20.2 CI (15.3-19.3) (12.6-17.2) (17.1-23.3) 1993 - - - CI - - - 1991 - - - CI - - - New York City 2005 13.6 12.6 14.6 CI (12.1-15.1) (10.7-14.5) (12.8-16.4) 2003 15.7 14.9 16.6 CI (14.4-17.0) (13.5-16.3) (14.9-18.3) 2001 17.9 16.4 19.3 CI (15.8-20.0) (13.7-19.1) (15.8-22.8) 1999 16.6 14.2 19.1 CI (14.3-18.9) (12.9-15.5) (14.5-23.7) 1997 18.4 14.4 22.6 CI (15.2-21.6) (11.3-17.5) (18.4-26.8) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Orange County, FL 2005 20.9 20.0 21.8 CI (18.1-23.7) (16.3-23.7) (18.1-25.5) 2003 17.4 16.8 17.9 CI (13.3-21.5) (11.3-22.3) (12.5-23.3) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Palm Beach 2005 21.1 20.5 21.7 CI (18.3-23.9) (17.6-23.4) (17.1-26.3) 2003 24.5 21.2 28.1 CI (21.7-27.3) (17.9-24.5) (24.4-31.8) 2001 26.1 24.3 28.1 CI (22.7-29.5) (20.7-27.9) (23.9-32.3) 1999 31.7 24.6 38.5 CI (28.8-34.6) (21.1-28.1) (34.2-42.8) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Philadelphia 2005 - - - CI - - - 2003 12.2 9.5 14.9 CI (9.5-14.9) (6.7-12.3) (11.2-18.6) 2001 13.6 14.0 13.4 CI (11.0-16.2) (9.8-18.2) (10.4-16.4) 1999 17.0 15.0 18.9 CI (14.1-19.9) (11.9-18.1) (15.1-22.7) 1997 17.8 15.2 20.6 CI (14.7-20.9) (12.3-18.1) (16.6-24.6) 1995 17.5 14.8 20.2 CI (14.6-20.4) (12.1-17.5) (16.1-24.3) 1993 - - - CI - - - 1991 20.1 16.2 24.7 CI (16.2-24.0) (10.6-21.8) (22.0-27.4) San Bernardino 2005 23.9 22.7 24.5 CI (20.6-27.2) (18.9-26.5) (20.0-29.0) 2003 22.0 20.5 23.2 CI (19.2-24.8) (17.3-23.7) (18.9-27.5) 2001 21.1 19.2 22.7 CI (17.4-24.8) (15.1-23.3) (17.0-28.4) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - San Diego 2005 22.2 22.7 21.1 CI (20.2-24.2) (19.5-25.9) (18.1-24.1) 2003 22.2 20.8 23.6 CI (19.5-24.9) (18.0-23.6) (19.5-27.7) 2001 24.3 25.3 23.3 CI (21.5-27.1) (21.2-29.4) (19.8-26.8) 1999 22.3 20.1 24.8 CI (19.4-25.2) (16.8-23.4) (20.8-28.8) 1997 27.1 23.9 30.2 CI (24.6-29.6) (21.3-26.5) (26.5-33.9) 1995 23.9 21.3 27.0 CI (21.6-26.2) (17.9-24.7) (23.7-30.3) 1993 22.4 19.6 25.0 CI (20.0-24.8) (16.5-22.7) (21.6-28.4) 1991 25.5 22.6 28.5 CI (22.5-28.5) (17.8-27.4) (25.2-31.8) San Francisco 2005 11.6 11.8 11.3 CI (9.8-13.4) (9.7-13.9) (8.9-13.7) 2003 - - - CI - - - 2001 13.2 12.4 14.0 CI (10.6-15.8) (9.2-15.6) (10.8-17.2) 1999 - - - CI - - - 1997 12.6 11.1 14.0 CI (10.9-14.3) (8.7-13.5) (11.4-16.6) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Seattle 2005 - - - CI - - - 2003 - - - CI - - - 2001 - - - CI - - - 1999 21.5 21.6 21.4 CI (17.5-25.5) (16.0-27.2) (17.6-25.2) 1997 - - - CI - - - 1995 20.7 17.7 24.2 CI (18.6-22.8) (14.9-20.5) (21.2-27.2) 1993 19.4 16.4 22.4 CI (17.3-21.5) (14.1-18.7) (19.1-25.7) 1991 - - - CI - - - -------------------------------------------------------------------------- Sources: Centers for Disease Control and Prevention. Youth online at http://apps.nccd.cdc.gov/yrbss/, Youth Risk Behavior Survey, CD-ROM, Youth '99 and Youth Risk Behavior Survey, CD-ROM Youth '97. The YRBS is an in-school survey of students in grades 9 through 12. Unweighted data are excluded from these tables. - Missing bar indicates less than 100 respondents for the category. If all categories in a year have a missing bar, either the geographic area did not use the survey item or participate in the YRBS that year, the data were not weighted, or the survey excluded students from one of the large school districts. CI indicates 95-percent confidence interval.