Mean of

increasing

No. of cases

Clinical diagnosis

No.

2.75

4

Simple mental disability

1

0.88

8

Linguistic delay

2

6

1

Mental retardation

3

5.4

5

Simple autism

4

2

2

Simple autism and hyperactivity

5

3

1

Severe autism

6

5

2

Moderate autism

7

2

1

Down’s syndrome

8

7.5

2

Autism features

9

2

1

Cerebral palsy

10

2.5

2

Simple cerebral palsy

11

1

4

Learning difficulties

12

4

1

Learning difficulties and problem of attention deficit

13

1

1

Optional silence

14

6

1

Hearing impairment and cochlear implants

15

−2.5

2

Hyperactivity

16

4

1

Hyperactivity and severe distraction

17

5

1

Electrocardiogram on the brain

18

−6

1

Simple mental syndrome

19

2.45

2.16

Average

3.08

1.86

St. deviation