Disability Insurance program: worker experience

SOCIAL SECURITY
DISABILITY INSURANCE PROGRAM
WORKER EXPERIENCE

ACTUARIAL STUDY NO. 114

by Tim Zayatz, A.S.A.

Historical Tables

Table 1.--DI Disabled Worker Benefits Awarded--Percentage Distribution

(Grouped by diagnostic category, gender, and calendar years awarded 1982-1997)

Impairment listing category ¹	1997	1996	1995	1994	1993	1992	1991	1990	1989	1988	1987	1986	1985	1984	1983	1982
	Male
Mental disorders ²	18.8%	19.5%	21.7%	23.0%	24.7%	24.4%	22.1%	21.2%	19.6%	20.0%	18.9%	28.6%	17.8%	17.6%	15.8%	10.2%
Musculoskeletal ³	22.2	21.6	20.7	12.6	13.9	14.2	16.2	14.8	15.6	15.3	14.1	12.4	12.1	12.0	12.6	15.1
Circulatory ⁴	16.4	15.6	15.6	16.4	16.5	16.6	17.1	18.3	19.1	20.5	21.1	20.4	22.1	22.7	25.0	28.2
Neoplasms ⁵	10.1	9.6	9.3	13.1	11.7	11.2	12.0	13.0	13.2	12.1	12.3	11.6	13.5	15.2	15.5	15.8
Nervous system ⁶	7.1	6.7	6.5	7.1	6.5	6.7	7.0	7.3	7.4	7.8	7.8	6.8	7.2	7.4	7.9	8.3
Infectious/parasitic ⁷	3.7	5.4	6.3	8.2	8.3	8.7	7.4	6.5	1.1	0.6	1.3	0.6	0.8	0.8	2.1	0.8
Injuries	5.4	5.3	5.0	4.2	4.3	4.5	5.2	5.5	5.8	5.9	5.9	4.6	5.2	5.3	5.8	6.2
Respiratory ⁸	4.4	4.3	4.3	4.6	4.1	4.1	4.3	4.7	5.0	5.7	5.4	5.8	5.4	5.4	6.0	7.1
Nutritional/metabolic ⁹	4.4	4.1	3.7	3.4	3.3	3.1	2.7	2.5	2.5	2.7	5.0	4.9	4.0	3.5	4.1	3.8
Other ¹⁰	7.5	7.9	6.9	7.4	6.7	6.5	6.0	6.2	10.7	9.4	8.2	4.3	11.9	10.1	5.2	4.5
Total	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	100.0

	Female
Mental disorders ²	23.6	23.3	24.6	27.6	28.5	28.1	26.0	24.8	23.0	22.7	20.8	32.0	19.0	18.6	17.3	11.5
Musculoskeletal ³	24.3	24.6	23.7	14.6	16.4	16.9	19.1	17.9	19.0	19.4	17.7	14.6	15.0	14.6	15.2	19.5
Neoplasms ⁵	11.2	10.9	11.0	15.8	14.2	13.7	14.5	16.1	15.9	15.2	15.2	15.1	16.9	19.4	19.9	20.1
Circulatory ⁴	8.8	9.0	9.0	9.5	9.6	9.8	10.3	11.0	11.7	12.3	13.4	11.8	13.6	13.8	15.1	17.1
Nervous system ⁶	8.5	8.3	8.2	8.5	8.3	8.5	9.0	9.4	9.5	9.6	9.7	8.3	8.5	9.0	9.5	10.6
Nutritional/metabolic ⁹	7.5	7.2	7.1	7.5	7.4	7.4	5.5	5.2	4.9	5.1	5.2	5.4	5.5	5.1	6.4	5.9
Respiratory ⁸	4.6	4.6	4.6	5.3	4.6	4.5	4.6	4.9	5.0	5.5	5.7	5.2	5.2	5.0	5.2	5.5
Injuries	3.2	3.3	3.2	2.5	2.6	2.9	3.3	3.4	3.6	3.6	3.3	2.6	2.7	3.0	3.3	4.0
Infectious/parasitic ⁷	1.2	1.5	1.6	1.8	1.8	1.9	1.5	1.4	0.6	0.8	0.8	0.8	0.8	1.0	2.2	0.8
Other ¹⁰	7.1	7.3	7.0	6.9	6.6	6.3	6.2	5.9	6.8	5.8	8.2	4.2	12.8	10.5	5.9	5.0
Total	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	100.0

	Total
Mental disorders ²	21.0	21.2	23.0	24.8	26.1	25.8	23.5	22.5	20.8	20.9	19.5	29.7	18.2	17.9	16.3	10.6
Musculoskeletal ³	23.1	22.9	22.0	13.4	14.8	15.2	17.2	15.9	16.8	16.8	15.3	13.1	13.0	12.8	13.4	16.4
Circulatory ⁴	13.1	12.9	12.9	13.7	14.0	14.1	14.6	15.7	16.5	17.6	18.5	17.6	19.3	19.8	21.9	24.9
Neoplasms ⁵	10.6	10.1	10.0	14.1	12.6	12.1	12.9	14.1	14.2	13.2	13.3	12.8	14.6	16.5	16.8	17.1
Nervous system ⁶	7.8	7.4	7.2	7.6	7.2	7.4	7.7	8.1	8.2	8.4	8.5	7.3	7.6	7.9	8.4	9.0
Nutritional/metabolic ⁹	5.8	5.4	5.2	5.0	4.9	4.7	3.7	3.5	3.4	3.5	5.1	5.1	4.5	4.0	4.8	4.4
Respiratory ⁸	4.5	4.5	4.5	4.9	4.3	4.3	4.4	4.7	5.0	5.6	5.5	5.6	5.4	5.3	5.8	6.6
Infectious/parasitic ⁷	2.6	3.7	4.3	5.7	5.9	6.2	5.3	4.7	0.9	0.7	1.1	0.7	0.8	0.9	2.2	0.8
Injuries	4.4	4.4	4.3	3.6	3.7	3.9	4.5	4.8	5.1	5.1	5.0	4.0	4.4	4.5	5.0	5.6
Other ¹⁰	7.1	7.5	6.6	7.2	6.5	6.3	6.2	6.0	9.1	8.2	8.2	4.1	12.2	10.4	5.4	4.6
Total	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	100.0

Source: The Annual Statistical Supplement to the Social Security Bulletin for years 1984-1998.

¹ Ranked by average percentage over the 5-year period 1993-1997.

² Includes listings for schizophrenia, paranoia, mental retardation, personality disorder.

³ Includes listings for arthritis, back disorder, amputation, bone disorder.

⁴ Includes listings for heart disease, hypertension, aneurysm.

⁵ Includes listings for malignant growths.

⁶ Includes listings for epilepsy, Parkinson's disease, cerebral palsy, multiple sclerosis.

⁷ Includes listings for impairments specifically related to HIV beginning in 1990.

⁸ Includes listings for asthma, tuberculosis, cystic fibrosis.

⁹ Includes listings for diabetes, disorders of the thyroid, pituitary, and adrenal glands, obesity.

¹⁰ Includes listings for congenital anomalies, and blood, digestive, genitourinary, and skin disorders; data for 1984-85 reflect a significant number of cases for which diagnosis was not available.

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July 30, 1999