[yrbs13.txt, updated 12/06] Percentage of students who at least had one drink of alcohol 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 43.3 42.8 43.8 CI (40.6-46.0) (39.7-45.9) (41.1-46.5) 2003 44.9 45.8 43.8 CI (42.5-47.3) (43.3-48.3) (41.2-46.4) 2001 47.1 45.0 49.2 CI (45.0-49.2) (42.8-47.2) (46.4-52.0) 1999 50.0 47.7 52.3 CI (47.5-52.5) (44.9-50.5) (49.4-55.2) 1997 50.8 47.8 53.3 CI (48.0-53.6) (43.9-51.7) (50.9-55.7) 1995 51.6 49.9 53.2 CI (49.3-53.9) (46.4-53.4) (50.6-55.8) 1993 48.0 45.9 50.1 CI (45.9-50.1) (43.3-48.5) (47.7-52.5) 1991 50.8 48.8 52.7 CI (47.4-54.2) (45.6-52.0) (48.9-56.5) State Alabama 2005 39.4 36.8 42.0 CI (34.4-44.4) (31.2-42.4) (35.9-48.1) 2003 40.2 40.5 39.9 CI (36.2-44.2) (34.6-46.4) (34.4-45.4) 2001 42.6 42.9 42.0 CI (39.1-46.1) (39.1-46.7) (37.1-46.9) 1999 45.4 41.5 49.0 CI (42.6-48.2) (38.3-44.7) (45.6-52.4) 1997 46.7 43.8 49.4 CI (44.0-49.4) (40.6-47.0) (46.2-52.6) 1995 43.9 40.6 47.2 CI (41.3-46.5) (37.5-43.7) (44.2-50.2) 1993 43.9 40.9 47.0 CI (41.3-46.5) (37.4-44.4) (44.0-50.0) 1991 46.8 40.5 53.2 CI (43.5-50.1) (36.6-44.4) (48.9-57.5) Alaska 2005 - - - CI - - - 2003 38.7 37.4 39.6 CI (34.7-42.7) (32.6-42.2) (34.9-44.3) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Arizona 2005 47.1 48.3 46.0 CI (43.7-50.5) (43.7-52.9) (41.7-50.3) 2003 50.9 51.0 50.7 CI (46.8-55.0) (45.4-56.6) (45.9-55.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Arkansas 2005 43.1 45.0 40.5 CI (39.2-47.0) (39.6-50.4) (35.9-45.1) 2003 - - - CI - - - 2001 47.9 44.1 51.9 CI (43.4-52.4) (39.6-48.6) (46.2-57.6) 1999 48.3 46.4 50.2 CI (44.2-52.4) (41.2-51.6) (45.0-55.4) 1997 50.1 45.8 54.3 CI (46.7-53.5) (42.0-49.6) (50.1-58.5) 1995 51.5 46.2 56.6 CI (49.0-54.0) (42.5-49.9) (54.0-59.2) 1993 - - - CI - - - 1991 - - - CI - - - Colorado 2005 47.4 49.4 45.8 CI (38.8-56.0) (39.2-59.6) (37.8-53.8) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 52.8 52.6 52.9 CI (48.9-56.7) (48.2-57.0) (48.3-57.5) 1993 - - - CI - - - 1991 - - - CI - - - Connecticut 2005 45.3 45.5 45.0 CI (41.1-49.5) (39.8-51.2) (40.7-49.3) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 52.6 51.3 54.1 CI (48.8-56.4) (46.7-55.9) (49.8-58.4) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Delaware 2005 43.1 42.6 43.4 CI (40.8-45.4) (39.8-45.4) (39.9-46.9) 2003 45.4 46.9 43.7 CI (42.8-48.0) (43.8-50.0) (40.1-47.3) 2001 46.4 45.0 47.8 CI (43.9-48.9) (41.7-48.3) (44.4-51.2) 1999 46.9 47.4 46.7 CI (44.1-49.7) (43.7-51.1) (42.9-50.5) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - District of Columbia 2005 23.1 24.5 21.7 CI (20.3-25.9) (20.3-28.7) (18.6-24.8) 2003 33.8 30.4 37.7 CI (30.4-37.2) (26.7-34.1) (33.5-41.9) 2001 - - - CI - - - 1999 36.7 37.0 36.6 CI (33.7-39.7) (33.8-40.2) (31.9-41.3) 1997 37.7 36.5 38.9 CI (34.8-40.6) (32.6-40.4) (34.6-43.2) 1995 - - - CI - - - 1993 41.3 40.1 42.7 CI (38.3-44.3) (36.8-43.4) (38.6-46.8) 1991 - - - CI - - - Florida 2005 39.7 41.2 38.3 CI (36.9-42.5) (38.4-44.0) (34.7-41.9) 2003 42.7 43.8 41.9 CI (40.6-44.8) (40.9-46.7) (38.9-44.9) 2001 45.0 45.5 44.6 CI (42.3-47.7) (42.1-48.9) (41.7-47.5) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Georgia 2005 39.9 41.0 38.8 CI (35.7-44.1) (36.3-45.7) (33.1-44.5) 2003 37.7 36.0 39.5 CI (34.9-40.5) (32.1-39.9) (35.6-43.4) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Hawaii 2005 34.8 34.8 34.6 CI (30.8-38.8) (29.1-40.5) (31.0-38.2) 2003 - - - CI - - - 2001 - - - CI - - - 1999 44.6 43.2 46.0 CI (40.1-49.1) (37.0-49.4) (42.8-49.2) 1997 40.3 38.8 41.5 CI (35.8-44.8) (33.6-44.0) (35.8-47.2) 1995 40.9 39.4 42.5 CI (37.1-44.7) (35.4-43.4) (36.7-48.3) 1993 38.4 38.7 38.1 CI (34.3-42.5) (33.9-43.5) (32.7-43.5) 1991 - - - CI - - - Idaho 2005 39.8 38.4 41.0 CI (34.7-44.9) (32.4-44.4) (35.1-46.9) 2003 34.8 34.0 35.4 CI (30.0-39.6) (29.5-38.5) (29.2-41.6) 2001 40.6 38.3 42.8 CI (35.6-45.6) (33.4-43.2) (37.0-48.6) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Indiana 2005 41.4 41.3 41.6 CI (37.2-45.6) (36.0-46.6) (37.0-46.2) 2003 44.9 45.4 44.5 CI (41.8-48.0) (41.7-49.1) (39.5-49.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Iowa 2005 43.8 41.0 46.5 CI (38.7-48.9) (35.2-46.8) (40.6-52.4) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 52.1 48.6 55.7 CI (47.6-56.6) (43.2-54.0) (50.1-61.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Kansas 2005 43.9 43.4 44.1 CI (40.5-47.3) (39.3-47.5) (39.6-48.6) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Kentucky 2005 37.4 36.8 38.0 CI (33.9-40.9) (32.0-41.6) (34.7-41.3) 2003 45.1 44.2 46.3 CI (41.4-48.8) (40.3-48.1) (41.8-50.8) 2001 - - - CI - - - 1999 - - - CI - - - 1997 49.3 44.5 53.8 CI (44.2-54.4) (39.5-49.5) (48.3-59.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Louisiana 2005 - - - CI - - - 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 54.9 53.2 56.7 CI (51.9-57.9) (50.1-56.3) (52.8-60.6) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Maine 2005 43.0 43.0 43.4 CI (38.7-47.3) (37.1-48.9) (38.3-48.5) 2003 42.2 41.3 42.8 CI (38.7-45.7) (35.5-47.1) (38.6-47.0) 2001 47.8 49.6 45.8 CI (43.1-52.5) (43.7-55.5) (40.2-51.4) 1999 - - - CI - - - 1997 51.3 49.6 53.0 CI (47.5-55.1) (46.1-53.1) (48.0-58.0) 1995 52.3 51.6 53.1 CI (48.1-56.5) (47.1-56.1) (47.0-59.2) 1993 - - - CI - - - 1991 - - - CI - - - Maryland 2005 39.8 41.9 37.6 CI (35.6-44.0) (35.7-48.1) (32.6-42.6) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Massachusetts 2005 47.8 47.6 48.0 CI (45.1-50.5) (44.3-50.9) (44.8-51.2) 2003 45.7 46.0 45.4 CI (43.4-48.0) (42.8-49.2) (42.3-48.5) 2001 53.0 51.7 54.3 CI (50.8-55.2) (48.8-54.6) (51.9-56.7) 1999 51.8 50.2 53.3 CI (49.8-53.8) (47.8-52.6) (50.6-56.0) 1997 53.5 51.8 55.3 CI (51.2-55.8) (49.0-54.6) (52.2-58.4) 1995 53.2 50.4 56.0 CI (50.7-55.7) (47.2-53.6) (53.3-58.7) 1993 47.4 45.5 49.2 CI (45.1-49.7) (42.2-48.8) (45.7-52.7) 1991 - - - CI - - - Michigan 2005 38.1 40.3 35.8 CI (34.7-41.5) (36.6-44.0) (31.5-40.1) 2003 44.0 45.6 42.3 CI (41.3-46.7) (42.7-48.5) (38.7-45.9) 2001 46.2 47.3 45.0 CI (42.6-49.8) (43.7-50.9) (40.9-49.1) 1999 48.5 47.4 49.8 CI (45.3-51.7) (42.9-51.9) (46.6-53.0) 1997 50.5 48.7 52.2 CI (46.1-54.9) (43.8-53.6) (47.3-57.1) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Mississippi 2005 - - - CI - - - 2003 41.8 40.0 44.0 CI (38.4-45.2) (35.7-44.3) (40.4-47.6) 2001 41.7 40.6 42.9 CI (39.3-44.1) (35.9-45.3) (40.0-45.8) 1999 42.5 38.6 46.7 CI (38.6-46.4) (33.4-43.8) (42.3-51.1) 1997 46.4 43.3 49.9 CI (42.9-49.9) (37.8-48.8) (46.5-53.3) 1995 48.5 41.0 56.1 CI (43.5-53.5) (35.8-46.2) (50.2-62.0) 1993 47.0 41.7 52.2 CI (43.8-50.2) (36.0-47.4) (49.8-54.6) 1991 - - - CI - - - Missouri 2005 40.8 40.4 41.2 CI (36.8-44.8) (35.0-45.8) (37.6-44.8) 2003 49.2 48.5 49.7 CI (45.0-53.4) (43.0-54.0) (45.4-54.0) 2001 47.6 46.1 49.2 CI (43.5-51.7) (41.6-50.6) (44.3-54.1) 1999 49.9 46.5 53.3 CI (46.0-53.8) (41.6-51.4) (48.8-57.8) 1997 51.4 53.0 49.8 CI (46.4-56.4) (46.5-59.5) (44.8-54.8) 1995 55.7 53.9 57.4 CI (53.2-58.2) (51.0-56.8) (54.1-60.7) 1993 - - - CI - - - 1991 - - - CI - - - Montana 2005 48.6 48.0 49.2 CI (45.6-51.6) (44.5-51.5) (45.3-53.1) 2003 49.5 48.9 49.6 CI (46.2-52.8) (45.4-52.4) (45.5-53.7) 2001 54.1 52.5 55.7 CI (51.4-56.8) (48.5-56.5) (52.0-59.4) 1999 57.6 55.0 60.1 CI (54.7-60.5) (51.4-58.6) (56.2-64.0) 1997 59.0 57.5 60.4 CI (56.4-61.6) (53.6-61.4) (56.6-64.2) 1995 58.2 54.9 61.2 CI (55.5-60.9) (51.6-58.2) (57.2-65.2) 1993 55.7 54.1 57.2 CI (52.4-59.0) (50.1-58.1) (52.8-61.6) 1991 - - - CI - - - Nebraska 2005 42.9 41.2 44.4 CI (40.4-45.4) (38.5-43.9) (40.6-48.2) 2003 46.5 49.3 43.8 CI (44.0-49.0) (45.8-52.8) (40.5-47.1) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Nevada 2005 41.4 40.4 42.3 CI (38.0-44.8) (35.9-44.9) (37.5-47.1) 2003 43.4 46.3 40.5 CI (40.4-46.4) (42.5-50.1) (35.9-45.1) 2001 47.5 48.6 46.4 CI (43.9-51.1) (44.5-52.7) (40.9-51.9) 1999 53.0 51.1 54.6 CI (49.7-56.3) (46.6-55.6) (50.7-58.5) 1997 49.9 50.5 49.2 CI (46.2-53.6) (45.7-55.3) (44.3-54.1) 1995 50.9 52.0 50.1 CI (47.4-54.4) (47.9-56.1) (45.4-54.8) 1993 49.2 49.4 49.0 CI (45.5-52.9) (44.9-53.9) (44.6-53.4) 1991 - - - CI - - - New Hampshire 2005 44.0 44.8 43.4 CI (39.4-48.6) (40.2-49.4) (37.3-49.5) 2003 47.1 46.9 47.1 CI (41.8-52.4) (41.1-52.7) (40.4-53.8) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 53.1 51.1 55.1 CI (50.2-56.0) (47.9-54.3) (51.0-59.2) 1993 49.5 47.0 51.8 CI (47.3-51.7) (44.0-50.0) (48.4-55.2) 1991 - - - CI - - - New Jersey 2005 46.5 49.0 43.9 CI (41.3-51.7) (43.7-54.3) (37.3-50.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New Mexico 2005 42.3 41.9 42.4 CI (38.5-46.1) (37.8-46.0) (38.3-46.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New York 2005 43.4 43.5 43.1 CI (40.5-46.3) (39.7-47.3) (40.0-46.2) 2003 44.2 45.0 43.1 CI (41.2-47.2) (41.8-48.2) (39.0-47.2) 2001 - - - CI - - - 1999 49.6 47.7 51.5 CI (46.6-52.6) (44.6-50.8) (47.3-55.7) 1997 48.2 45.4 50.9 CI (45.0-51.4) (42.0-48.8) (46.5-55.3) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - North Carolina 2005 42.3 40.1 44.4 CI (38.0-46.6) (36.2-44.0) (39.3-49.5) 2003 39.4 37.3 41.5 CI (34.1-44.7) (31.9-42.7) (35.1-47.9) 2001 38.2 35.9 40.5 CI (35.2-41.2) (32.0-39.8) (36.1-44.9) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 43.7 39.7 47.9 CI (40.0-47.4) (35.2-44.2) (43.5-52.3) 1991 - - - CI - - - North Dakota 2005 49.0 48.3 49.6 CI (45.2-52.8) (42.7-53.9) (45.0-54.2) 2003 54.2 55.8 52.6 CI (50.8-57.6) (51.2-60.4) (48.0-57.2) 2001 59.2 56.4 61.7 CI (55.9-62.5) (52.2-60.6) (57.1-66.3) 1999 60.5 58.2 62.6 CI (57.1-63.9) (53.3-63.1) (58.8-66.4) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Ohio 2005 42.4 43.7 41.2 CI (38.6-46.2) (38.4-49.0) (36.2-46.2) 2003 42.2 40.7 43.7 CI (37.5-46.9) (35.2-46.2) (38.2-49.2) 2001 - - - CI - - - 1999 55.5 53.0 57.9 CI (52.1-58.9) (49.1-56.9) (54.2-61.6) 1997 46.3 44.3 48.4 CI (42.6-50.0) (40.1-48.5) (44.4-52.4) 1995 - - - CI - - - 1993 46.5 44.5 48.3 CI (42.8-50.2) (39.8-49.2) (44.2-52.4) 1991 - - - CI - - - Oklahoma 2005 40.5 41.4 39.7 CI (37.3-43.7) (37.7-45.1) (35.9-43.5) 2003 47.8 44.1 51.1 CI (45.1-50.5) (39.2-49.0) (47.4-54.8) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Rhode Island 2005 42.7 42.9 42.7 CI (40.4-45.0) (39.8-46.0) (39.4-46.0) 2003 44.5 46.6 42.2 CI (40.7-48.3) (43.1-50.1) (37.4-47.0) 2001 50.3 47.3 53.3 CI (47.1-53.5) (43.1-51.5) (50.1-56.5) 1999 - - - CI - - - 1997 52.2 50.9 53.7 CI (48.0-56.4) (46.1-55.7) (49.2-58.2) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - South Carolina 2005 43.2 42.1 44.2 CI (40.0-46.4) (37.2-47.0) (40.2-48.2) 2003 - - - CI - - - 2001 - - - CI - - - 1999 45.4 43.4 47.4 CI (43.0-47.8) (40.5-46.3) (44.4-50.4) 1997 45.3 44.1 46.5 CI (42.7-47.9) (40.9-47.3) (43.5-49.5) 1995 46.4 41.9 51.0 CI (44.3-48.5) (39.4-44.4) (48.3-53.7) 1993 44.3 40.1 48.4 CI (42.2-46.4) (37.3-42.9) (45.9-50.9) 1991 46.9 43.1 50.6 CI (44.8-49.0) (40.3-45.9) (48.1-53.1) South Dakota 2005 46.6 44.2 48.9 CI (42.5-50.7) (39.7-48.7) (42.3-55.5) 2003 50.2 49.9 50.4 CI (45.2-55.2) (43.0-56.8) (45.4-55.4) 2001 50.2 48.0 52.3 CI (45.3-55.1) (42.1-53.9) (46.4-58.2) 1999 59.2 57.7 60.6 CI (53.7-64.7) (51.7-63.7) (53.3-67.9) 1997 60.2 58.2 62.2 CI (55.9-64.5) (54.6-61.8) (56.1-68.3) 1995 54.0 51.8 56.1 CI (46.6-61.4) (44.8-58.8) (47.1-65.1) 1993 61.2 58.4 63.8 CI (56.6-65.8) (52.2-64.6) (59.6-68.0) 1991 57.9 57.7 57.9 CI (51.6-64.2) (50.3-65.1) (51.0-64.8) Tennessee 2005 41.8 41.0 42.3 CI (38.1-45.5) (35.7-46.3) (39.0-45.6) 2003 41.1 39.5 42.7 CI (37.1-45.1) (36.3-42.7) (36.8-48.6) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Texas 2005 47.3 45.5 49.1 CI (43.6-51.0) (42.4-48.6) (44.0-54.2) 2003 43.0 43.3 42.5 CI (39.2-46.8) (38.9-47.7) (37.7-47.3) 2001 48.6 48.4 48.8 CI (45.4-51.8) (44.8-52.0) (45.0-52.6) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Utah 2005 15.8 15.7 15.8 CI (12.0-19.6) (11.6-19.8) (10.8-20.8) 2003 21.3 19.5 22.8 CI (17.0-25.6) (15.1-23.9) (15.3-30.3) 2001 17.9 14.8 20.8 CI (13.6-22.2) (09.8-19.8) (14.9-26.7) 1999 22.7 20.8 24.0 CI (17.8-27.6) (15.6-26.0) (18.6-29.4) 1997 24.3 23.2 25.1 CI (20.1-28.5) (18.1-28.3) (20.5-29.7) 1995 22.4 21.9 22.8 CI (18.6-26.2) (16.8-27.0) (19.3-26.3) 1993 26.0 25.4 26.5 CI (23.4-28.6) (22.5-28.3) (23.4-29.6) 1991 26.6 24.6 28.5 CI (22.8-30.4) (20.5-28.7) (24.4-32.6) Vermont 2005 41.8 39.6 43.9 CI (38.8-44.8) (36.7-42.5) (40.5-47.3) 2003 43.5 42.9 43.9 CI (40.6-46.4) (39.8-46.0) (40.0-47.8) 2001 48.1 46.9 49.2 CI (43.3-52.9) (40.7-53.1) (45.4-53.0) 1999 49.5 47.1 51.7 CI (47.2-51.8) (44.4-49.8) (49.1-54.3) 1997 54.9 52.8 56.8 CI (50.7-59.1) (49.2-56.4) (51.4-62.2) 1995 56.5 53.2 59.5 CI (52.9-60.1) (49.1-57.3) (56.3-62.7) 1993 52.6 50.4 54.8 CI (49.4-55.8) (47.0-53.8) (51.9-57.7) 1991 - - - CI - - - West Virginia 2005 41.5 37.5 45.3 CI (38.7-44.3) (34.0-41.0) (40.8-49.8) 2003 44.4 45.6 43.3 CI (40.8-48.0) (39.0-52.2) (37.3-49.3) 2001 - - - CI - - - 1999 48.6 46.9 50.2 CI (45.3-51.9) (43.1-50.7) (46.2-54.2) 1997 51.5 44.6 58.9 CI (47.9-55.1) (41.3-47.9) (53.5-64.3) 1995 51.6 45.6 57.3 CI (48.6-54.6) (41.4-49.8) (53.9-60.7) 1993 52.7 49.4 56.0 CI (49.7-55.7) (45.6-53.2) (53.0-59.0) 1991 - - - CI - - - Wisconsin 2005 49.2 49.3 49.2 CI (46.3-52.1) (45.1-53.5) (46.1-52.3) 2003 47.3 47.1 47.3 CI (44.1-50.5) (43.0-51.2) (42.7-51.9) 2001 54.1 54.4 53.8 CI (50.0-58.2) (49.4-59.4) (49.4-58.2) 1999 51.8 47.5 55.8 CI (48.0-55.6) (43.1-51.9) (50.5-61.1) 1997 50.5 46.3 54.7 CI (46.7-54.3) (41.2-51.4) (50.9-58.5) 1995 - - - CI - - - 1993 48.1 47.5 48.7 CI (45.0-51.2) (43.2-51.8) (45.3-52.1) 1991 - - - CI - - - Wyoming 2005 45.4 44.7 46.0 CI (42.5-48.3) (41.1-48.3) (42.4-49.6) 2003 49.0 49.0 49.2 CI (44.7-53.3) (44.1-53.9) (43.7-54.7) 2001 51.3 48.6 54.0 CI (48.4-54.2) (45.1-52.1) (50.3-57.7) 1999 54.8 53.2 56.4 CI (51.3-58.3) (48.9-57.5) (52.3-60.5) 1997 55.0 51.9 58.1 CI (51.3-58.7) (47.2-56.6) (54.1-62.1) 1995 52.1 47.5 56.4 CI (48.1-56.1) (42.6-52.4) (51.8-61.0) 1993 - - - CI - - - 1991 - - - CI - - - City Baltimore 2005 29.4 28.7 30.1 CI (26.9-31.9) (26.0-31.4) (26.4-33.8) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Boston 2005 35.7 34.7 36.5 CI (32.4-39.0) (30.3-39.1) (31.9-41.1) 2003 38.1 38.7 37.3 CI (34.5-41.7) (34.4-43.0) (32.5-42.1) 2001 41.7 41.7 41.9 CI (38.7-44.7) (38.0-45.4) (37.7-46.1) 1999 37.1 32.8 41.4 CI (33.9-40.3) (29.2-36.4) (36.3-46.5) 1997 40.1 35.9 44.7 CI (36.7-43.5) (31.2-40.6) (40.5-48.9) 1995 39.0 35.5 42.5 CI (35.6-42.4) (31.1-39.9) (37.9-47.1) 1993 40.1 35.6 44.9 CI (36.9-43.3) (31.6-39.6) (40.2-49.6) 1991 - - - CI - - - Broward County, FL 2005 38.3 38.2 38.4 CI (34.7-41.9) (33.9-42.5) (34.0-42.8) 2003 42.0 44.5 39.8 CI (39.0-45.0) (40.7-48.3) (36.2-43.4) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Charlotte-Mecklenburg, NC 2005 39.0 38.1 39.7 CI (35.8-42.2) (34.3-41.9) (35.9-43.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Chicago 2005 43.4 44.0 42.9 CI (38.7-48.1) (36.5-51.5) (37.8-48.0) 2003 42.8 43.2 42.4 CI (37.3-48.3) (36.6-49.8) (35.4-49.4) 2001 42.3 42.2 42.3 CI (36.7-47.9) (37.1-47.3) (35.1-49.5) 1999 39.4 41.0 37.7 CI (35.6-43.2) (36.2-45.8) (32.7-42.7) 1997 36.9 36.5 37.3 CI (33.8-40.0) (32.5-40.5) (32.2-42.4) 1995 37.4 36.5 38.3 CI (33.5-41.3) (31.9-41.1) (33.3-43.3) 1993 39.2 38.6 39.7 CI (36.0-42.4) (34.9-42.3) (34.6-44.8) 1991 42.1 40.1 44.1 CI (38.5-45.7) (35.8-44.4) (38.7-49.5) Dallas 2005 44.3 44.6 44.0 CI (41.5-47.1) (40.3-48.9) (39.5-48.5) 2003 42.4 41.8 43.2 CI (39.6-45.2) (38.1-45.5) (39.4-47.0) 2001 44.0 45.0 43.0 CI (40.7-47.3) (40.7-49.3) (38.5-47.5) 1999 42.6 41.5 43.4 CI (39.6-45.6) (38.0-45.0) (38.6-48.2) 1997 42.9 42.7 43.1 CI (40.5-45.3) (39.3-46.1) (38.8-47.4) 1995 48.4 46.6 50.2 CI (46.4-50.4) (43.8-49.4) (47.0-53.4) 1993 46.4 42.4 51.1 CI (45.0-47.8) (40.3-44.5) (48.8-53.4) 1991 44.4 40.0 49.1 CI (42.4-46.4) (37.3-42.7) (47.0-51.2) DeKalb County, GA 2005 27.1 27.1 27.0 CI (25.0-29.2) (24.3-29.9) (23.6-30.4) 2003 28.7 31.5 25.8 CI (26.5-30.9) (28.6-34.4) (22.7-28.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Detroit 2005 31.1 33.7 27.9 CI (27.6-34.6) (29.7-37.7) (23.3-32.5) 2003 30.9 34.4 27.1 CI (27.5-34.3) (29.4-39.4) (23.4-30.8) 2001 - - - CI - - - 1999 32.6 33.9 31.3 CI (29.6-35.6) (29.7-38.1) (28.0-34.6) 1997 35.0 35.4 34.6 CI (32.6-37.4) (31.9-38.9) (31.4-37.8) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Hillsborough County, FL 2005 41.3 40.7 41.7 CI (37.7-44.9) (36.5-44.9) (36.9-46.5) 2003 - - - CI - - - 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Ft. Lauderdale 2005 - - - CI - - - 2003 - - - CI - - - 2001 43.9 44.7 43.2 CI (40.6-47.2) (40.4-49.0) (39.0-47.4) 1999 44.1 44.6 43.6 CI (40.3-47.9) (40.0-49.2) (38.9-48.3) 1997 44.0 41.6 46.4 CI (40.1-47.9) (37.1-46.1) (41.2-51.6) 1995 40.1 40.1 40.0 CI (36.7-43.5) (36.0-44.2) (35.4-44.6) 1993 43.9 42.8 45.0 CI (40.8-47.0) (38.7-46.9) (40.6-49.4) 1991 47.9 47.1 48.8 CI (43.5-52.3) (42.6-51.6) (43.1-54.5) Houston 2005 - - - CI - - - 2003 - - - CI - - - 2001 43.9 44.7 43.1 CI (40.5-47.3) (40.5-48.9) (38.1-48.1) 1999 41.1 44.0 38.7 CI (37.8-44.4) (40.2-47.8) (33.6-43.8) 1997 44.9 42.1 48.5 CI (38.9-50.9) (35.0-49.2) (42.3-54.7) 1995 44.4 43.2 45.5 CI (39.3-49.5) (36.5-49.9) (40.1-50.9) 1993 - - - CI - - - 1991 - - - CI - - - Los Angeles 2005 38.7 41.9 35.2 CI (36.0-41.4) (38.1-45.7) (29.7-40.7) 2003 42.5 44.1 41.1 CI (37.8-47.2) (39.6-48.6) (35.1-47.1) 2001 39.8 42.0 37.4 CI (35.8-43.8) (36.7-47.3) (33.9-40.9) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Memphis 2005 33.2 34.9 31.2 CI (29.2-37.2) (30.2-39.6) (26.1-36.3) 2003 30.2 30.4 29.9 CI (27.1-33.3) (26.7-34.1) (25.4-34.4) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Miami 2005 40.8 41.2 40.3 CI (38.0-43.6) (38.0-44.4) (36.4-44.2) 2003 37.4 38.5 36.3 CI (34.8-40.0) (34.9-42.1) (32.7-39.9) 2001 39.9 37.4 42.4 CI (37.2-42.6) (33.7-41.1) (38.6-46.2) 1999 41.6 40.3 42.9 CI (38.1-45.1) (36.7-43.9) (38.3-47.5) 1997 42.2 40.0 44.2 CI (38.4-46.0) (36.4-43.6) (38.7-49.7) 1995 41.0 36.4 45.4 CI (37.4-44.6) (31.6-41.2) (41.4-49.4) 1993 36.8 36.0 37.7 CI (33.8-39.8) (32.3-39.7) (34.8-40.6) 1991 42.8 40.6 44.9 CI (37.1-48.5) (33.4-47.8) (39.6-50.2) Milwaukee 2005 35.5 36.3 34.3 CI (32.8-38.2) (32.3-40.3) (30.2-38.4) 2003 37.1 33.6 40.8 CI (33.4-40.8) (29.7-37.5) (35.1-46.5) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - New Orleans 2005 36.0 39.0 32.1 CI (33.3-38.7) (34.9-43.1) (28.0-36.2) 2003 33.7 31.2 36.7 CI (30.6-36.8) (27.5-34.9) (32.0-41.4) 2001 - - - CI - - - 1999 37.8 39.2 36.0 CI (33.8-41.8) (33.9-44.5) (31.6-40.4) 1997 48.7 49.6 47.6 CI (44.9-52.5) (45.5-53.7) (42.3-52.9) 1995 45.6 45.5 45.8 CI (42.9-48.3) (42.4-48.6) (41.7-49.9) 1993 - - - CI - - - 1991 - - - CI - - - New York City 2005 35.5 34.8 35.8 CI (32.9-38.1) (31.3-38.3) (33.0-38.6) 2003 35.5 36.3 34.6 CI (33.6-37.4) (34.0-38.6) (32.2-37.0) 2001 41.8 41.6 41.7 CI (38.4-45.2) (37.0-46.2) (37.2-46.2) 1999 37.8 35.1 40.5 CI (33.8-41.8) (31.5-38.7) (34.4-46.6) 1997 39.7 37.4 42.1 CI (35.5-43.9) (32.9-41.9) (35.1-49.1) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Orange County, FL 2005 39.4 41.0 37.7 CI (36.3-42.5) (36.8-45.2) (32.9-42.5) 2003 39.6 40.6 38.3 CI (35.1-44.1) (33.8-47.4) (32.7-43.9) 2001 - - - CI - - - 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Palm Beach 2005 39.2 39.7 38.5 CI (35.9-42.5) (35.6-43.8) (33.2-43.8) 2003 44.4 45.8 43.2 CI (41.4-47.4) (41.9-49.7) (39.0-47.4) 2001 45.4 46.1 44.9 CI (41.9-48.9) (41.6-50.6) (40.7-49.1) 1999 53.0 48.2 57.9 CI (49.7-56.3) (44.2-52.2) (53.4-62.4) 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Philadelphia 2005 - - - CI - - - 2003 29.8 29.6 29.8 CI (26.7-32.9) (25.3-33.9) (26.2-33.4) 2001 31.6 34.1 28.8 CI (27.7-35.5) (28.7-39.5) (24.5-33.1) 1999 33.0 32.6 33.2 CI (30.1-35.9) (28.3-36.9) (28.8-37.6) 1997 36.3 36.6 36.1 CI (33.2-39.4) (33.0-40.2) (31.6-40.6) 1995 36.7 34.4 39.0 CI (32.0-41.4) (29.4-39.4) (32.7-45.3) 1993 - - - CI - - - 1991 44.1 41.0 48.1 CI (39.2-49.0) (34.6-47.4) (44.4-51.8) San Bernardino 2005 39.2 38.9 39.3 CI (35.6-42.8) (34.1-43.7) (34.7-43.9) 2003 37.8 40.8 34.5 CI (34.4-41.2) (36.7-44.9) (29.6-39.4) 2001 34.9 36.5 33.5 CI (30.6-39.2) (31.1-41.9) (27.4-39.6) 1999 - - - CI - - - 1997 - - - CI - - - 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - San Diego 2005 38.8 40.2 37.0 CI (35.8-41.8) (35.5-44.9) (33.4-40.6) 2003 38.5 39.4 37.6 CI (35.1-41.9) (35.7-43.1) (33.0-42.2) 2001 41.0 42.6 39.3 CI (37.9-44.1) (37.8-47.4) (35.3-43.3) 1999 39.4 39.1 40.1 CI (35.5-43.3) (34.4-43.8) (35.4-44.8) 1997 47.1 45.5 48.8 CI (44.3-49.9) (41.9-49.1) (44.9-52.7) 1995 44.1 43.4 45.1 CI (40.9-47.3) (39.4-47.4) (40.8-49.4) 1993 43.7 43.7 43.5 CI (40.6-46.8) (40.0-47.4) (39.2-47.8) 1991 44.8 43.0 46.6 CI (40.3-49.3) (36.5-49.5) (42.1-51.1) San Francisco 2005 24.0 23.4 24.2 CI (21.7-26.3) (20.7-26.1) (21.0-27.4) 2003 - - - CI - - - 2001 29.1 29.6 28.6 CI (25.5-32.7) (25.2-34.0) (24.6-32.6) 1999 - - - CI - - - 1997 27.5 27.0 27.9 CI (25.1-29.9) (23.6-30.4) (24.7-31.1) 1995 - - - CI - - - 1993 - - - CI - - - 1991 - - - CI - - - Seattle 2005 - - - CI - - - 2003 - - - CI - - - 2001 - - - CI - - - 1999 37.0 39.3 34.7 CI (32.9-41.1) (34.0-44.6) (30.3-39.1) 1997 - - - CI - - - 1995 40.6 38.7 42.7 CI (37.9-43.3) (34.9-42.5) (39.3-46.1) 1993 46.1 43.6 48.7 CI (43.5-48.7) (40.5-46.7) (45.0-52.4) 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.