Annex Table A2a Sample Size of Noninstitutionalized Working-Age Civilian Men (Ages 25 to 61) in the Random Sample with Various Chronic Impairments, Diseases, and Disorders, 1983-1996

Year

Group

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

Sum

No Visual Impairments......

3,652

3,599

3,130

2,128

4,344

4,281

4,146

4,270

4,225

4,569

3,945

4,255

3,709

2,341

52,594

Visual Impairments............

204

187

180

113

219

233

194

205

218

257

220

217

188

108

2,743

Blind in Both Eyes.............

2

5

4

3

8

11

1

10

9

11

5

12

8

6

95

Other Visual

Impairments.....................

202

182

176

110

211

222

193

195

209

246

215

205

180

102

2,648

Vision-Related

Diseases/Disorders...........

184

148

150

93

219

193

149

165

171

218

184

193

176

95

2,338

Glaucoma...........................

14

20

22

8

23

24

17

20

26

26

22

31

15

16

284

Cataracts............................

29

27

32

11

28

27

29

23

27

39

24

25

33

16

370

Color Blindness.................

126

90

83

67

144

126

90

109

103

147

123

118

109

56

1,491

Other Vision-Related

Diseases/Disorders^a.........

19

16

17

8

28

26

18

19

20

22

21

25

25

9

273

Other Impairments

Hearing Impairments.........

454

412

389

237

494

483

421

491

442

558

465

485

409

235

5,975

Deaf in Both Ears..............

29

29

21

12

21

23

17

19

14

36

16

31

23

10

301

Other Hearing

Impairments.....................

425

383

368

225

473

460

404

472

428

522

449

454

386

225

5,674

Mental Retardation............

15

12

14

16

14

21

16

29

21

20

18

19

24

12

251

Paraplegia, Hemiplegia,

or Quadriplegia................

6

5

8

7

10

3

3

7

5

9

13

12

8

10

106

Cerebral Palsy....................

3

6

1

5

3

6

2

6

3

5

4

4

5

4

57

Note: In the NHIS, conditions are determined in two ways. First, participants receive one of six condition lists that ask them if they have a specific condition (see Table 1). Second, participants are asked broad questions to reveal general health and functioning (see Table 2, top panel), if participants reveal they have health or functioning difficulties, they are then asked what conditions cause these difficulties (see Table 2, bottom panel). This method misses those with conditions who have no such difficulties, while his first method captures those with conditions that have no health or functioning difficulties. So only one-sixth of the sample is directly asked about blindness. This one-sixth of the sample is a random sample because being asked about blindness is not dependent one's response to another question. The remaining five-sixths of the sample is choice-based because revealing blindness is dependent one's response (choice) to another question.