Development of Stuttering

Question 1

Prevalence of chronic stuttering

Answer 1

.7%

Question 2

Incidence of stuttering (includes recovery)

Answer 2

5-12%

Question 3

When does stuttering develop

Answer 3

Between 18 months and 3.5 years for 85% of children. Later development means higher chance of chronic stuttering.

Question 4

Gender and stuttering

Answer 4

2: 1 in PreK
4: 1 in chronic stuttering

Question 5

Stuttering and DS

Answer 5

Higher incidence, but lower emotional reactivity

Question 6

Onset types

Answer 6

Sudden, intermediate, and gradual. Most kids have a sudden onset.

Question 7

Primary characteristics of stuttering close to onset time

Answer 7

Similar rates of non-stuttered dysfluencies
More prolongations and blocks than CWNS
52% of KWS demonstrate some secondary behaviors upon the onset of stuttering

Question 8

Discrepancies between parent severity rating and clinician severity rating

Answer 8

Parents tend to overestimate in the mild range and slightly overestimate in the severe range–most clinicians rate children in the moderate range

Question 9

Reported stress at onset (5)

Answer 9

Illness–14%, almost never actually related
Emotional upset-40%; possibly reactionary to stuttering
Behavioral stress-36%; possibly reactionary
Rapid language development–40%; may be related
Word-finding issues–43%

Question 10

What time frame is expected for recovery from stuttering?

Answer 10

Within 12-18 months.

Question 11

Factors that point to persistent stuttering (4)

Answer 11

1. Age of onset
2. Stuttering lasting longer than 12-18 months
3. Proportion of part-word reps to blocks
4. Family history of persistent stuttering