[yrbs01.txt, updated 12/06] Percentage of students who during the past 30 days rode 1 or more times in a vehicle driven by someone who had been drinking alcohol, by geographic area according to sex: YRBS, 1991-2005, biennially. --------------------------------------------------------------------------- Geographic Area/Year Total Female Male --------------------------------------------------------------------------- National 2005 28.5 29.6 27.2 CI (26.6-30.4) (27.2-32.0) (25.2-29.2) 2003 30.2 31.1 29.2 CI (28.1-32.3) (29.1-33.1) (26.6-31.8) 2001 30.7 29.6 31.8 CI (28.7-32.7) (27.5-31.7) (29.5-34.1) 1999 33.1 31.7 34.4 CI (30.7-35.5) (28.8-34.6) (31.8-37.0) 1997 36.6 34.5 38.3 CI (34.5-38.7) (32.3-36.7) (35.8-40.8) 1995 38.8 37.8 39.5 CI (34.9-42.7) (33.5-42.1) (35.1-43.9) 1993 35.3 34.5 36.3 CI (32.7-37.9) (31.4-37.6) (33.5-39.1) 1991 39.9 39.8 40.0 CI (37.1-42.7) (36.9-42.7) (37.0-43.0) State Alabama 2005 28.8 25.7 31.9 CI (26.0-31.6) (22.3-29.1) (28.5-35.3) 2003 29.2 26.1 32.2 CI (26.1-32.3) (21.7-30.5) (27.1-37.3) 2001 33.7 35.0 32.0 CI (30.9-36.5) (31.5-38.5) (27.1-36.9) 1999 34.7 31.0 38.1 CI (32.0-37.4) (27.2-34.8) (35.2-41.0) 1997 40.3 38.7 41.5 CI (37.5-43.1) (35.2-42.2) (38.6-44.4) 1995 38.4 34.9 41.6 CI (35.9-40.9) (31.9-37.9) (38.6-44.6) 1993 39.7 37.9 41.2 CI (37.5-41.9) (35.1-40.7) (38.3-44.1) 1991 42.7 39.0 46.2 CI (40.4-45.0) (36.7-41.3) (42.1-50.3) Alaska 2005 - - - CI - - - 2003 25.0 25.0 24.7 CI (22.2-27.8) (20.4-29.6) (21.7-27.7) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Arizona 2005 34.3 34.9 33.7 CI (32.1-36.5) (32.2-37.6) (30.7-36.7) 2003 35.3 36.6 33.8 CI (32.1-38.5) (32.7-40.5) (29.7-37.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Arkansas 2005 27.8 26.5 29.0 CI (24.7-30.9) (22.0-31.0) (25.3-32.7) 2003 - - - CI - - - 2001 31.2 29.9 32.5 CI (28.1-34.3) (27.2-32.6) (27.8-37.2) 1999 34.0 30.9 36.9 CI (31.1-36.9) (26.5-35.3) (33.9-39.9) 1997 41.4 39.3 43.4 CI (38.3-44.5) (35.8-42.8) (39.1-47.7) 1995 41.9 39.3 44.5 CI (39.2-44.6) (36.0-42.6) (41.3-47.7) 1993 - - - CI - - - 1991 - - - CI - - - Colorado 2005 26.9 29.8 24.0 CI (22.4-31.4) (24.5-35.1) (18.9-29.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 38.0 38.6 37.4 CI (34.6-41.4) (34.4-42.8) (33.7-41.1) 1993 - - - CI - - - 1991 - - - CI - - - Connecticut 2005 29.7 31.9 27.5 CI (27.3-32.1) (28.9-34.9) (24.1-30.9) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 38.3 38.4 38.2 CI (35.1-41.5) (34.2-42.6) (34.6-41.8) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Delaware 2005 26.7 26.6 27.1 CI (24.7-28.7) (23.9-29.3) (24.2-30.0) 2003 29.1 28.0 30.1 CI (27.1-31.1) (25.7-30.3) (27.4-32.8) 2001 29.2 26.7 32.0 CI (27.2-31.2) (24.3-29.1) (29.1-34.9) 1999 32.4 31.9 32.9 CI (29.6-35.2) (28.3-35.5) (29.5-36.3) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - District of Columbia 2005 24.1 23.1 24.8 CI (22.1-26.1) (20.6-25.6) (21.6-28.0) 2003 29.1 26.4 31.9 CI (26.4-31.8) (23.1-29.7) (28.2-35.6) 2001 - - - CI - - - 1999 31.4 28.9 34.4 CI (28.6-34.2) (25.8-32.0) (30.2-38.6) 1997 34.6 29.4 40.1 CI (31.7-37.5) (25.9-32.9) (35.8-44.4) 1995 - - - CI - - - 1993 32.9 31.3 34.6 CI (30.5-35.3) (28.6-34.0) (30.9-38.3) 1991 - - - CI - - - Florida 2005 27.2 27.5 26.5 CI (25.4-29.0) (25.3-29.7) (24.1-28.9) 2003 30.4 31.2 29.6 CI (29.0-31.8) (29.4-33.0) (27.1-32.1) 2001 31.5 30.3 32.5 CI (29.0-34.0) (27.4-33.2) (29.8-35.2) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Georgia 2005 26.7 26.4 26.9 CI (23.5-29.9) (21.2-31.6) (23.2-30.6) 2003 24.0 23.5 24.4 CI (21.2-26.8) (19.8-27.2) (21.1-27.7) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Hawaii 2005 33.0 36.3 29.7 CI (30.2-35.8) (33.0-39.6) (25.3-34.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 38.3 36.6 40.1 CI (33.3-43.3) (30.2-43.0) (35.0-45.2) 1997 36.1 37.0 35.1 CI (32.6-39.6) (33.0-41.0) (30.4-39.8) 1995 37.6 38.7 36.7 CI (34.2-41.0) (34.3-43.1) (33.1-40.3) 1993 36.3 35.9 36.6 CI (33.3-39.3) (31.6-40.2) (32.7-40.5) 1991 - - - CI - - - Idaho 2005 27.7 28.8 26.6 CI (23.6-31.8) (24.1-33.5) (21.1-32.1) 2003 24.1 24.2 24.0 CI (20.2-28.0) (20.8-27.6) (18.7-29.3) 2001 28.7 27.2 29.7 CI (26.1-31.3) (23.9-30.5) (26.3-33.1) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Indiana 2005 24.6 21.6 27.4 CI (21.1-28.1) (18.0-25.2) (22.4-32.4) 2003 28.3 27.1 29.4 CI (25.9-30.7) (23.1-31.1) (25.8-33.0) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Iowa 2005 30.6 32.0 29.4 CI (26.1-35.1) (26.9-37.1) (23.4-35.4) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 40.4 38.7 42.0 CI (37.7-43.1) (34.3-43.1) (38.7-45.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Kansas 2005 29.2 27.7 30.3 CI (25.9-32.5) (24.2-31.2) (25.1-35.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Kentucky 2005 22.0 20.6 23.4 CI (20.3-23.7) (18.8-22.4) (20.8-26.0) 2003 25.5 23.7 27.0 CI (23.2-27.8) (20.2-27.2) (23.5-30.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 35.9 30.2 41.5 CI (31.4-40.4) (26.4-34.0) (35.4-47.6) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Louisiana 2005 - - - CI - - - 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 45.7 44.5 46.6 CI (43.0-48.4) (41.1-47.9) (43.9-49.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Maine 2005 25.2 24.2 26.4 CI (21.6-28.8) (20.4-28.0) (21.1-31.7) 2003 24.2 22.9 25.1 CI (20.5-27.9) (18.8-27.0) (20.3-29.9) 2001 27.4 27.3 27.4 CI (24.3-30.5) (22.6-32.0) (24.7-30.1) 1999 - - - CI - - - 1997 34.0 32.1 35.5 CI (31.3-36.7) (28.8-35.4) (33.1-37.9) 1995 34.2 33.0 35.5 CI (30.5-37.9) (28.7-37.3) (30.6-40.4) 1993 - - - CI - - - 1991 - - - CI - - - Maryland 2005 25.0 24.7 25.3 CI (21.1-28.9) (20.2-29.2) (20.6-30.0) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Massachusetts 2005 27.2 26.8 27.5 CI (25.6-28.8) (25.0-28.6) (24.9-30.1) 2003 27.5 28.0 27.1 CI (24.9-30.1) (25.0-31.0) (24.0-30.2) 2001 30.5 28.7 32.3 CI (28.6-32.4) (26.4-31.0) (29.7-34.9) 1999 33.4 31.7 35.0 CI (30.9-35.9) (28.9-34.5) (32.0-38.0) 1997 35.4 35.0 35.8 CI (33.5-37.3) (32.2-37.8) (33.7-37.9) 1995 36.6 33.4 39.6 CI (34.4-38.8) (30.5-36.3) (37.1-42.1) 1993 32.5 31.6 33.3 CI (30.0-35.0) (28.5-34.7) (30.4-36.2) 1991 - - - CI - - - Michigan 2005 24.9 25.3 24.4 CI (22.1-27.7) (22.6-28.0) (20.8-28.0) 2003 29.6 29.3 29.8 CI (27.4-31.8) (26.7-31.9) (27.1-32.5) 2001 32.1 32.6 31.2 CI (28.6-35.6) (28.4-36.8) (28.0-34.4) 1999 33.6 30.8 36.3 CI (30.9-36.3) (27.6-34.0) (32.7-39.9) 1997 37.1 36.7 37.4 CI (33.3-40.9) (32.1-41.3) (33.3-41.5) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Mississippi 2005 - - - CI - - - 2003 30.9 30.0 32.0 CI (28.2-33.6) (26.4-33.6) (28.9-35.1) 2001 35.0 33.0 37.1 CI (31.8-38.2) (28.2-37.8) (33.2-41.0) 1999 39.8 38.1 41.3 CI (36.2-43.4) (34.0-42.2) (36.6-46.0) 1997 41.3 38.5 44.2 CI (37.8-44.8) (32.9-44.1) (40.9-47.5) 1995 44.6 41.4 47.7 CI (40.0-49.2) (35.4-47.4) (42.8-52.6) 1993 42.6 39.1 46.4 CI (38.9-46.3) (34.9-43.3) (41.1-51.7) 1991 - - - CI - - - Missouri 2005 25.0 25.2 24.6 CI (22.1-27.9) (20.8-29.6) (22.0-27.2) 2003 31.7 33.0 30.3 CI (28.2-35.2) (27.8-38.2) (27.0-33.6) 2001 32.6 30.3 34.8 CI (29.2-36.0) (25.3-35.3) (31.9-37.7) 1999 35.1 33.1 37.1 CI (31.8-38.4) (28.8-37.4) (33.3-40.9) 1997 39.8 40.3 39.2 CI (36.9-42.7) (36.9-43.7) (34.9-43.5) 1995 45.2 43.3 47.0 CI (42.6-47.8) (40.0-46.6) (44.4-49.6) 1993 - - - CI - - - 1991 - - - CI - - - Montana 2005 34.4 34.5 33.9 CI (31.9-36.9) (31.2-37.8) (30.6-37.2) 2003 36.9 36.4 37.0 CI (34.0-39.8) (32.8-40.0) (33.6-40.4) 2001 39.3 39.0 39.5 CI (36.5-42.1) (35.3-42.7) (35.3-43.7) 1999 43.1 42.9 43.2 CI (40.5-45.7) (39.8-46.0) (39.9-46.5) 1997 46.6 46.2 47.1 CI (43.8-49.4) (43.4-49.0) (43.3-50.9) 1995 48.1 46.8 49.2 CI (44.6-51.6) (43.2-50.4) (44.8-53.6) 1993 45.9 47.2 44.6 CI (42.3-49.5) (43.3-51.1) (40.4-48.8) 1991 - - - CI - - - Nebraska 2005 35.6 34.6 36.6 CI (33.4-37.8) (32.2-37.0) (33.2-40.0) 2003 38.5 39.9 37.0 CI (36.2-40.8) (36.4-43.4) (34.0-40.0) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Nevada 2005 26.4 25.8 26.8 CI (23.6-29.2) (22.6-29.0) (22.6-31.0) 2003 26.6 28.0 25.3 CI (24.1-29.1) (24.6-31.4) (22.1-28.5) 2001 29.9 28.6 31.0 CI (27.1-32.7) (25.2-32.0) (26.7-35.3) 1999 35.2 33.3 36.7 CI (32.3-38.1) (29.3-37.3) (33.5-39.9) 1997 33.4 34.8 32.2 CI (30.1-36.7) (30.6-39.0) (27.5-36.9) 1995 36.8 38.6 35.2 CI (33.8-39.8) (35.3-41.9) (30.6-39.8) 1993 35.2 34.5 35.8 CI (31.8-38.6) (30.5-38.5) (31.6-40.0) 1991 - - - CI - - - New Hampshire 2005 21.6 21.3 22.1 CI (19.3-23.9) (18.1-24.5) (18.4-25.8) 2003 24.7 24.0 25.3 CI (21.5-27.9) (20.8-27.2) (20.5-30.1) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 31.5 27.9 35.1 CI (28.9-34.1) (24.9-30.9) (31.1-39.1) 1993 30.8 29.4 32.2 CI (28.9-32.7) (26.6-32.2) (29.9-34.5) 1991 - - - CI - - - New Jersey 2005 27.5 27.2 27.7 CI (23.6-31.4) (22.2-32.2) (23.3-32.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New Mexico 2005 31.5 30.3 32.2 CI (27.5-35.5) (25.1-35.5) (28.4-36.0) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New York 2005 20.2 19.1 21.3 CI (18.1-22.3) (16.8-21.4) (18.1-24.5) 2003 21.1 20.4 21.7 CI (19.6-22.6) (18.5-22.3) (19.5-23.9) 2001 - - - CI - - - 1999 25.7 25.6 25.8 CI (23.3-28.1) (23.1-28.1) (22.6-29.0) 1997 28.8 26.0 31.5 CI (26.7-30.9) (23.4-28.6) (27.8-35.2) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - North Carolina 2005 25.3 23.5 26.9 CI (22.1-28.5) (20.7-26.3) (22.6-31.2) 2003 23.5 22.7 24.1 CI (20.9-26.1) (18.9-26.5) (21.5-26.7) 2001 23.9 21.5 26.4 CI (21.7-26.1) (18.8-24.2) (22.9-29.9) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 33.3 31.2 35.4 CI (30.5-36.1) (28.1-34.3) (31.5-39.3) 1991 - - - CI - - - North Dakota 2005 37.4 39.2 35.6 CI (33.4-41.4) (33.9-44.5) (30.8-40.4) 2003 42.8 45.7 40.1 CI (39.3-46.3) (41.2-50.2) (35.4-44.8) 2001 43.5 43.1 43.6 CI (40.4-46.6) (39.0-47.2) (39.8-47.4) 1999 48.0 46.7 49.3 CI (44.1-51.9) (41.8-51.6) (44.8-53.8) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Ohio 2005 21.3 20.3 22.2 CI (17.9-24.7) (16.8-23.8) (17.6-26.8) 2003 23.2 22.6 23.7 CI (20.3-26.1) (19.1-26.1) (18.9-28.5) 2001 - - - CI - - - 1999 31.9 30.7 33.0 CI (29.0-34.8) (27.5-33.9) (29.5-36.5) 1997 34.7 33.6 35.7 CI (31.9-37.5) (29.8-37.4) (32.6-38.8) 1995 - - - CI - - - 1993 36.8 36.8 36.7 CI (33.2-40.4) (32.9-40.7) (32.2-41.2) 1991 - - - CI - - - Oklahoma 2005 25.8 26.4 25.1 CI (23.4-28.2) (22.8-30.0) (22.1-28.1) 2003 30.6 28.3 32.7 CI (26.2-35.0) (21.5-35.1) (29.1-36.3) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Rhode Island 2005 28.8 26.2 31.3 CI (26.2-31.4) (23.6-28.8) (28.3-34.3) 2003 28.2 30.0 25.9 CI (26.0-30.4) (26.1-33.9) (22.6-29.2) 2001 32.3 29.5 34.7 CI (28.1-36.5) (23.2-35.8) (30.3-39.1) 1999 - - - CI - - - 1997 35.9 34.0 37.6 CI (32.7-39.1) (30.0-38.0) (32.9-42.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - South Carolina 2005 30.0 28.6 31.4 CI (27.1-32.9) (25.0-32.2) (27.7-35.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 34.6 31.4 37.8 CI (32.6-36.6) (29.1-33.7) (35.2-40.4) 1997 37.9 34.6 41.0 CI (35.9-39.9) (32.2-37.0) (38.6-43.4) 1995 39.5 36.7 42.0 CI (38.0-41.0) (34.1-39.3) (39.9-44.1) 1993 38.0 35.0 40.7 CI (35.9-40.1) (32.0-38.0) (38.9-42.5) 1991 39.3 37.6 40.8 CI (37.5-41.1) (35.5-39.7) (38.7-42.9) South Dakota 2005 32.0 31.7 32.1 CI (27.7-36.3) (27.8-35.6) (26.7-37.5) 2003 36.3 37.4 35.3 CI (31.4-41.2) (31.2-43.6) (30.8-39.8) 2001 38.1 37.6 38.7 CI (34.1-42.1) (33.2-42.0) (33.8-43.6) 1999 44.0 44.2 43.8 CI (39.9-48.1) (39.0-49.4) (38.8-48.8) 1997 49.7 49.2 50.2 CI (43.5-55.9) (44.0-54.4) (42.7-57.7) 1995 49.5 48.1 50.9 CI (42.0-57.0) (39.3-56.9) (42.3-59.5) 1993 51.5 51.4 51.6 CI (47.5-55.5) (46.0-56.8) (46.6-56.6) 1991 49.9 53.6 46.3 CI (42.9-56.9) (45.7-61.5) (39.7-52.9) Tennessee 2005 25.1 24.9 25.4 CI (22.0-28.2) (21.2-28.6) (20.6-30.2) 2003 26.6 27.4 25.9 CI (23.6-29.6) (24.3-30.5) (21.2-30.6) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Texas 2005 37.0 35.0 38.9 CI (34.0-40.0) (32.2-37.8) (35.1-42.7) 2003 32.9 32.9 32.8 CI (29.5-36.3) (28.4-37.4) (28.7-36.9) 2001 39.7 39.9 39.6 CI (36.5-42.9) (36.0-43.8) (36.6-42.6) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Utah 2005 13.4 13.3 13.4 CI (10.5-16.3) (9.5-17.1) (10.4-16.4) 2003 17.9 18.6 17.0 CI (15.8-20.0) (14.5-22.7) (13.6-20.4) 2001 17.1 12.1 21.6 CI (14.3-19.9) (8.8-15.4) (17.6-25.6) 1999 19.7 19.5 19.9 CI (16.6-22.8) (15.6-23.4) (15.8-24.0) 1997 19.4 19.3 19.3 CI (17.4-21.4) (16.0-22.6) (16.3-22.3) 1995 21.4 22.2 20.6 CI (18.7-24.1) (18.1-26.3) (18.0-23.2) 1993 24.2 24.7 23.6 CI (22.2-26.2) (22.3-27.1) (21.5-25.7) 1991 24.8 24.3 25.3 CI (21.4-28.2) (20.6-28.0) (21.5-29.1) Vermont 2005 22.9 22.2 23.5 CI (19.7-26.1) (19.1-25.3) (20.0-27.0) 2003 22.4 20.9 23.7 CI (20.3-24.5) (18.9-22.9) (21.1-26.3) 2001 24.5 23.2 25.5 CI (21.6-27.4) (20.0-26.4) (22.4-28.6) 1999 26.2 24.3 27.9 CI (23.2-29.2) (22.0-26.6) (24.0-31.8) 1997 32.7 31.4 33.8 CI (29.2-36.2) (27.8-35.0) (30.0-37.6) 1995 38.3 35.5 40.8 CI (34.2-42.4) (31.0-40.0) (36.8-44.8) 1993 - - - CI - - - 1991 - - - CI - - - West Virginia 2005 24.8 20.9 28.4 CI (22.1-27.5) (17.3-24.5) (24.9-31.9) 2003 24.3 23.9 24.7 CI (21.4-27.2) (19.9-27.9) (21.0-28.4) 2001 - - - CI - - - 1999 31.3 29.8 32.5 CI (27.4-35.2) (26.1-33.5) (27.5-37.5) 1997 35.0 27.9 42.5 CI (31.3-38.7) (24.6-31.2) (37.6-47.4) 1995 36.3 31.9 40.4 CI (33.4-39.2) (28.5-35.3) (35.8-45.0) 1993 38.7 36.1 41.3 CI (36.2-41.2) (33.7-38.5) (37.8-44.8) 1991 - - - CI - - - Wisconsin 2005 31.2 32.4 30.1 CI (28.4-34.0) (28.4-36.4) (27.5-32.7) 2003 29.7 31.3 28.1 CI (26.7-32.7) (27.3-35.3) (23.9-32.3) 2001 36.3 37.3 35.3 CI (33.4-39.2) (33.7-40.9) (31.8-38.8) 1999 37.8 34.3 41.2 CI (34.5-41.1) (30.2-38.4) (36.5-45.9) 1997 36.0 35.6 36.5 CI (32.6-39.4) (31.1-40.1) (32.6-40.4) 1995 - - - CI - - - 1993 38.7 39.0 38.5 CI (36.5-40.9) (36.0-42.0) (35.7-41.3) 1991 - - - CI - - - Wyoming 2005 29.7 31.3 28.3 CI (27.3-32.1) (28.2-34.4) (25.3-31.3) 2003 32.2 33.9 30.7 CI (28.7-35.7) (29.1-38.7) (26.3-35.1) 2001 35.9 35.1 36.6 CI (33.8-38.0) (32.5-37.7) (33.2-40.0) 1999 38.7 37.4 39.9 CI (35.7-41.7) (33.6-41.2) (36.3-43.5) 1997 40.9 39.7 42.2 CI (38.2-43.6) (36.5-42.9) (38.3-46.1) 1995 42.3 40.6 44.0 CI (39.2-45.4) (37.1-44.1) (40.0-48.0) 1993 - - - CI - - - 1991 - - - CI - - - City Baltimore 2005 23.6 20.8 26.6 CI (21.7-25.5) (18.5-23.1) (23.6-29.6) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Boston 2005 20.7 17.4 24.2 CI (17.9-23.5) (14.2-20.6) (20.4-28.0) 2003 23.7 20.4 26.9 CI (21.3-26.1) (17.3-23.5) (22.9-30.9) 2001 25.2 25.8 24.6 CI (22.9-27.5) (22.4-29.2) (21.2-28.0) 1999 27.9 23.7 31.8 CI (25.1-30.7) (19.5-27.9) (28.1-35.5) 1997 29.0 26.0 32.0 CI (26.4-31.6) (22.4-29.6) (28.4-35.6) 1995 29.3 27.1 31.5 CI (26.9-31.7) (23.9-30.3) (27.7-35.3) 1993 31.1 28.0 34.2 CI (28.8-33.4) (24.5-31.5) (30.5-37.9) 1991 - - - CI - - - Broward County, FL 2005 23.7 22.5 24.8 CI (20.8-26.6) (19.4-25.6) (20.7-28.9) 2003 24.7 25.5 23.9 CI (22.1-27.3) (21.7-29.3) (20.7-27.1) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Charlotte-Mecklenburg, NC 2005 25.2 24.3 25.9 CI (23.0-27.4) (21.0-27.6) (23.1-28.7) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Chicago 2005 31.9 28.9 35.2 CI (28.4-35.4) (24.5-33.3) (29.7-40.7) 2003 32.5 31.8 33.1 CI (27.8-37.2) (25.7-37.9) (26.7-39.5) 2001 34.0 35.8 31.8 CI (29.9-38.1) (31.4-40.2) (26.2-37.4) 1999 33.1 29.0 37.1 CI (29.7-36.5) (24.2-33.8) (32.2-42.0) 1997 34.1 30.7 38.2 CI (31.8-36.4) (27.3-34.1) (34.0-42.4) 1995 35.2 32.9 37.8 CI (32.4-38.0) (29.8-36.0) (33.5-42.1) 1993 35.7 33.8 37.9 CI (32.5-38.9) (30.0-37.6) (33.3-42.5) 1991 37.4 35.9 38.6 CI (34.6-40.2) (32.6-39.2) (34.1-43.1) Dallas 2005 41.9 41.7 42.1 CI (38.6-45.2) (37.4-46.0) (37.9-46.3) 2003 40.6 39.2 42.3 CI (37.5-43.7) (35.1-43.3) (38.3-46.3) 2001 39.6 39.5 39.6 CI (37.2-42.0) (36.4-42.6) (35.9-43.3) 1999 39.1 35.9 42.0 CI (36.7-41.5) (32.9-38.9) (38.2-45.8) 1997 43.1 42.0 44.3 CI (40.2-46.0) (38.3-45.7) (40.0-48.6) 1995 46.3 43.2 49.5 CI (44.3-48.3) (40.3-46.1) (46.5-52.5) 1993 45.7 43.0 48.9 CI (43.9-47.5) (40.6-45.4) (46.4-51.4) 1991 44.8 42.6 47.1 CI (43.2-46.4) (40.6-44.6) (44.6-49.6) DeKalb County, GA 2005 19.9 18.5 21.1 CI (18.0-21.8) (16.5-20.5) (18.1-24.1) 2003 24.4 23.3 25.3 CI (22.4-26.4) (20.3-26.3) (22.6-28.0) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Detroit 2005 30.4 28.7 32.6 CI (27.8-33.0) (25.1-32.3) (29.3-35.9) 2003 33.7 35.0 32.4 CI (30.6-36.8) (31.0-39.0) (28.9-35.9) 2001 - - - CI - - - 1999 37.2 38.0 36.3 CI (34.6-39.8) (34.7-41.3) (32.1-40.5) 1997 40.6 36.8 45.1 CI (38.2-43.0) (33.4-40.2) (42.2-48.0) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Hillsborough County, FL 2005 30.0 28.8 30.5 CI (27.3-32.7) (25.8-31.8) (26.9-34.1) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Ft. Lauderdale 2005 - - - CI - - - 2003 - - - CI - - - 2001 27.5 27.6 27.3 CI (25.2-29.8) (24.1-31.1) (23.4-31.2) 1999 28.3 28.3 28.4 CI (25.8-30.8) (25.2-31.4) (25.4-31.4) 1997 30.7 30.2 31.3 CI (27.6-33.8) (26.3-34.1) (27.2-35.4) 1995 29.9 30.2 29.5 CI (27.4-32.4) (27.2-33.2) (25.9-33.1) 1993 31.0 29.9 32.0 CI (28.0-34.0) (26.2-33.6) (27.9-36.1) 1991 31.8 31.4 32.1 CI (28.3-35.3) (27.6-35.2) (27.0-37.2) Houston 2005 - - - CI - - - 2003 - - - CI - - - 2001 38.6 39.4 37.6 CI (35.9-41.3) (35.3-43.5) (34.1-41.1) 1999 37.2 35.5 38.6 CI (34.7-39.7) (31.8-39.2) (35.1-42.1) 1997 39.7 35.1 44.9 CI (35.9-43.5) (30.7-39.5) (39.4-50.4) 1995 43.8 41.3 45.7 CI (39.8-47.8) (36.5-46.1) (39.0-52.4) 1993 - - - CI - - - 1991 - - - CI - - - Los Angeles 2005 30.9 34.4 27.5 CI (26.1-35.7) (29.1-39.7) (21.3-33.7) 2003 31.4 30.4 32.5 CI (28.1-34.7) (26.8-34.0) (25.6-39.4) 2001 29.4 29.6 28.7 CI (26.3-32.5) (26.9-32.3) (22.6-34.8) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Memphis 2005 26.4 28.2 24.2 CI (23.8-29.0) (24.6-31.8) (20.8-27.6) 2003 24.2 23.5 25.0 CI (22.2-26.2) (21.0-26.0) (22.1-27.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Miami 2005 27.2 28.3 26.0 CI (25.2-29.2) (25.7-30.9) (23.0-29.0) 2003 25.4 25.7 24.9 CI (23.2-27.6) (22.8-28.6) (21.3-28.5) 2001 26.7 25.2 28.4 CI (24.6-28.8) (22.3-28.1) (25.2-31.6) 1999 29.5 28.1 30.8 CI (26.5-32.5) (24.6-31.6) (27.4-34.2) 1997 32.1 30.8 33.4 CI (28.7-35.5) (27.2-34.4) (29.2-37.6) 1995 30.1 26.6 33.5 CI (27.3-32.9) (23.3-29.9) (29.3-37.7) 1993 30.1 29.1 30.9 CI (27.8-32.4) (25.9-32.3) (29.0-32.8) 1991 29.1 29.0 29.0 CI (26.7-31.5) (26.1-31.9) (26.4-31.6) Milwaukee 2005 29.6 30.2 29.1 CI (26.8-32.4) (26.2-34.2) (25.3-32.9) 2003 30.6 30.0 31.1 CI (27.4-33.8) (26.2-33.8) (26.3-35.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New Orleans 2005 31.9 30.8 32.5 CI (29.0-34.8) (27.3-34.3) (28.2-36.8) 2003 31.4 31.3 31.7 CI (28.6-34.2) (28.0-34.6) (27.7-35.7) 2001 - - - CI - - - 1999 34.6 32.7 36.9 CI (30.5-38.7) (28.0-37.4) (32.0-41.8) 1997 37.8 35.2 40.5 CI (34.8-40.8) (31.8-38.6) (36.3-44.7) 1995 39.3 36.9 42.0 CI (36.6-42.0) (34.0-39.8) (38.0-46.0) 1993 - - - CI - - - 1991 - - - CI - - - New York City 2005 17.8 16.8 18.9 CI (15.8-19.8) (14.5-19.1) (16.1-21.7) 2003 18.6 17.0 20.2 CI (17.1-20.1) (15.2-18.8) (18.4-22.0) 2001 20.7 20.3 21.0 CI (18.7-22.7) (18.0-22.6) (17.3-24.7) 1999 21.7 22.9 20.5 CI (19.5-23.9) (20.2-25.8) (18.6-22.4) 1997 22.7 21.6 23.8 CI (21.2-24.2) (17.9-25.3) (19.7-27.9) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Orange County, FL 2005 27.5 28.5 26.1 CI (24.6-30.4) (24.7-32.3) (21.9-30.3) 2003 25.0 27.4 22.6 CI (23.0-27.0) (25.5-29.3) (19.1-26.1) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Palm Beach 2005 25.2 24.9 25.5 CI (22.8-27.6) (21.7-28.1) (21.6-29.4) 2003 29.0 28.1 29.9 CI (26.2-31.8) (24.4-31.8) (26.3-33.5) 2001 34.5 33.1 36.0 CI (31.3-37.7) (29.9-36.3) (30.1-41.9) 1999 38.5 33.3 43.3 CI (35.5-41.5) (30.0-36.6) (38.9-47.7) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Philadelphia 2005 - - - CI - - - 2003 23.5 21.7 25.3 CI (21.0-26.0) (17.8-25.6) (21.6-29.0) 2001 23.3 24.9 21.8 CI (20.6-26.0) (20.7-29.1) (17.5-26.1) 1999 27.2 27.4 26.8 CI (23.5-30.9) (22.7-32.1) (22.1-31.5) 1997 28.1 26.3 29.8 CI (25.6-30.6) (23.6-29.0) (26.2-33.4) 1995 29.6 27.2 32.1 CI (26.6-32.6) (23.8-30.6) (28.8-35.4) 1993 - - - CI - - - 1991 32.1 29.6 35.2 CI (28.8-35.4) (25.5-33.7) (31.6-38.8) San Bernardino 2005 29.8 28.7 30.1 CI (27.2-32.4) (25.2-32.2) (26.1-34.1) 2003 28.6 30.3 26.8 CI (25.7-31.5) (26.8-33.8) (22.5-31.1) 2001 34.8 33.4 35.9 CI (31.2-38.4) (28.9-37.9) (30.1-41.7) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - San Diego 2005 27.5 27.4 27.1 CI (25.1-29.9) (23.3-31.5) (23.9-30.3) 2003 29.1 29.4 28.9 CI (26.5-31.7) (26.5-32.3) (24.9-32.9) 2001 28.0 27.4 28.6 CI (25.3-30.7) (24.0-30.8) (24.5-32.7) 1999 27.6 28.3 27.0 CI (24.8-30.4) (24.8-31.8) (23.3-30.7) 1997 33.8 32.5 35.0 CI (31.4-36.2) (29.6-35.4) (31.7-38.3) 1995 32.7 32.6 32.6 CI (30.2-35.2) (29.4-35.8) (29.1-36.1) 1993 33.3 32.6 34.1 CI (30.6-36.0) (29.5-35.7) (30.3-37.9) 1991 30.5 29.9 31.0 CI (25.8-35.2) (23.2-36.6) (24.4-37.6) San Francisco 2005 20.8 21.2 20.6 CI (19.1-22.5) (18.7-23.7) (18.3-22.9) 2003 - - - CI - - - 2001 19.3 20.1 18.6 CI (16.7-21.9) (16.7-23.5) (14.8-22.4) 1999 - - - CI - - - 1997 20.7 20.1 21.2 CI (18.6-22.8) (17.2-23.0) (18.1-24.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Seattle 2005 - - - CI - - - 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 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.