Table 46.

Children 3 to 21 years old served under Individuals with Disabilities Education Act, Part B, by type of disability: Selected years, 1976-77 through 2009-10

Type of disability	1976-77	1980-81	1990-91	1995-96	1999-2000	2000-01	2001-02	2002-03	2003-04	2004-05	2005-06	2006-07	2007-081	2008-091	2009-10
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
	Number served (in thousands)
All disabilities	3,694	4,144	4,710	5,572	6,195	6,296	6,407	6,523	6,634	6,719	6,713	6,686	6,606	6,483	6,481
Autism	—	—	—	28	65	94	114	137	163	191	223	258	296	336	378
Deaf-blindness	—	3	1	1	2	1	2	2	2	2	2	2	2	2	2
Developmental delay	—	—	—	—	19	178	242	283	305	332	339	333	358	354	368
Emotional disturbance	283	347	389	437	469	481	483	485	489	489	477	464	442	420	407
Hearing impairments	88	79	58	67	71	78	78	78	79	79	79	80	79	78	79
Intellectual disability	961	830	534	571	600	624	616	602	593	578	556	534	500	478	463
Multiple disabilities	—	68	96	93	111	133	136	138	140	140	141	142	138	130	131
Orthopedic impairments	87	58	49	63	71	83	83	83	77	73	71	69	67	70	65
Other health impairments2	141	98	55	133	253	303	350	403	464	521	570	611	641	659	689
Preschool disabled3	†	†	390	544	581	†	†	†	†	†	†	†	†	†	†
Specific learning disabilities	796	1,462	2,129	2,578	2,834	2,868	2,861	2,848	2,831	2,798	2,735	2,665	2,573	2,476	2,431
Speech or language impairments	1,302	1,168	985	1,022	1,080	1,409	1,391	1,412	1,441	1,463	1,468	1,475	1,456	1,426	1,416
Traumatic brain injury	—	—	—	9	14	16	22	22	23	24	24	25	25	26	25
Visual impairments	38	31	23	25	26	29	28	29	28	29	29	29	29	29	29
	Percentage distribution of children served
All disabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Autism	—	—	—	0.5	1.0	1.5	1.8	2.1	2.5	2.8	3.3	3.9	4.5	5.2	5.8
Deaf-blindness	—	0.1	#	#	#	#	#	#	#	#	#	#	#	#	#
Developmental delay	—	—	—	—	0.3	2.8	3.8	4.3	4.6	4.9	5.1	5.0	5.4	5.5	5.7
Emotional disturbance	7.7	8.4	8.3	7.8	7.6	7.6	7.5	7.4	7.4	7.3	7.1	6.9	6.7	6.5	6.3
Hearing impairments	2.4	1.9	1.2	1.2	1.1	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
Intellectual disability	26.0	20.0	11.3	10.2	9.7	9.9	9.6	9.2	8.9	8.6	8.3	8.0	7.6	7.4	7.1
Multiple disabilities	—	1.6	2.0	1.7	1.8	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.0	2.0
Orthopedic impairments	2.4	1.4	1.0	1.1	1.1	1.3	1.3	1.3	1.2	1.1	1.1	1.0	1.0	1.1	1.0
Other health impairments2	3.8	2.4	1.2	2.4	4.1	4.8	5.5	6.2	7.0	7.7	8.5	9.1	9.7	10.2	10.6
Preschool disabled3	†	†	8.3	9.8	9.4	†	†	†	†	†	†	†	†	†	†
Specific learning disabilities	21.5	35.3	45.2	46.3	45.7	45.5	44.7	43.7	42.7	41.6	40.7	39.9	39.0	38.2	37.5
Speech or language impairments	35.2	28.2	20.9	18.3	17.4	22.4	21.7	21.6	21.7	21.8	21.9	22.1	22.0	22.0	21.8
Traumatic brain injury	—	—	—	0.2	0.2	0.2	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Visual impairments	1.0	0.7	0.5	0.4	0.4	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
	Number served as a percent of total enrollment4
All disabilities	8.3	10.1	11.4	12.4	13.2	13.3	13.4	13.5	13.7	13.8	13.7	13.6	13.4	13.2	13.1
Autism	—	—	—	0.1	0.1	0.2	0.2	0.3	0.3	0.4	0.5	0.5	0.6	0.7	0.8
Deaf-blindness	—	#	#	#	#	#	#	#	#	#	#	#	#	#	#
Developmental delay	—	—	—	—	#	0.4	0.5	0.6	0.6	0.7	0.7	0.7	0.7	0.7	0.7
Emotional disturbance	0.6	0.8	0.9	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	0.9	0.9	0.9	0.8
Hearing impairments	0.2	0.2	0.1	0.1	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Intellectual disability	2.2	2.0	1.3	1.3	1.3	1.3	1.3	1.2	1.2	1.2	1.1	1.1	1.0	1.0	0.9
Multiple disabilities	—	0.2	0.2	0.2	0.2	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Orthopedic impairments	0.2	0.1	0.1	0.1	0.2	0.2	0.2	0.2	0.2	0.2	0.1	0.1	0.1	0.1	0.1
Other health impairments2	0.3	0.2	0.1	0.3	0.5	0.6	0.7	0.8	1.0	1.1	1.2	1.2	1.3	1.3	1.4
Preschool disabled3	†	†	0.9	1.2	1.2	†	†	†	†	†	†	†	†	†	†
Specific learning disabilities	1.8	3.6	5.2	5.8	6.0	6.1	6.0	5.9	5.8	5.7	5.6	5.4	5.2	5.0	4.9
Speech or language impairments	2.9	2.9	2.4	2.3	2.3	3.0	2.9	2.9	3.0	3.0	3.0	3.0	3.0	2.9	2.9
Traumatic brain injury	—	—	—	#	#	#	#	#	#	#	#	0.1	0.1	0.1	0.1
Visual impairments	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1

—Not available.

†Not applicable.

#Rounds to zero.

1 Data do not include Vermont, for which 2007-08 and 2008-09 data were not available. In 2006-07, the total number of 3- to 21-year-olds served in Vermont was 14,010.

2 Other health impairments include having limited strength, vitality, or alertness due to chronic or acute health problems such as a heart condition, tuberculosis, rheumatic fever, nephritis, asthma, sickle cell anemia, hemophilia, epilepsy, lead poisoning, leukemia, or diabetes.

3 Prior to 1990-91 and after 1999-2000, preschool children are included in the counts by disability condition. For other years, preschool children are not included in the counts by disability condition, but are separately reported.

4 Based on the total enrollment in public schools, prekindergarten through 12th grade.

NOTE: Prior to October 1994, children and youth with disabilities were served under Chapter 1 of the Elementary and Secondary Education Act as well as under the Individuals with Disabilities Education Act (IDEA), Part B. Data reported in this table for years prior to 1994-95 include children ages 0-21 served under Chapter 1. Data are for the 50 states and the District of Columbia only. Increases since 1987-88 are due in part to new legislation enacted in fall 1986, which added a mandate for public school special education services for 3- to 5-year-old children with disabilities. Some data have been revised from previously published figures. Detail may not sum to totals because of rounding.

SOURCE: U.S. Department of Education, Office of Special Education Programs, Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act, selected years, 1979 through 2006; and Individuals with Disabilities Education Act (IDEA) database, retrieved September 14, 2011, from http://www.ideadata.org/PartBdata.asp. National Center for Education Statistics, Statistics of Public Elementary and Secondary School Systems, 1977-78 and 1980-81; Common Core of Data (CCD), "State Nonfiscal Survey of Public Elementary/Secondary Education," 1990-91 through 2009–10. (This table was prepared September 2011.)