Editing Stuttering (section)

===Prognosis===
Among ages 3–5, the [[prognosis]] for spontaneously recovery is about 65% to 87.5%. By 7 years of age or within the first two years of stuttering,<ref name="Sander and Osborne">{{cite journal |last1=Sander |first1=Robert W. |last2=Osborne |first2=Charles A. |title=Stuttering: Understanding and Treating a Common Disability |journal=American Family Physician |date=November 2019 |volume=100 |issue=9 |pages=556–560 |pmid=31674746 |url=https://www.aafp.org/link_out?pmid=31674746 }}</ref><ref name="fn 30">{{cite journal |last1=Yairi |first1=Ehud |last2=Ambrose |first2=Nicoline |title=Onset of Stuttering in Preschool Children: Selected Factors |journal=Journal of Speech, Language, and Hearing Research |date=August 1992 |volume=35 |issue=4 |pages=782–788 |doi=10.1044/jshr.3504.782 |pmid=1405533 }}</ref><ref name="fn 31">{{cite journal |last1=Yairi |first1=Ehud |title=Epidemiologic and other considerations in treatment efficacy research with preschool age children who stutter |journal=Journal of Fluency Disorders |date=June 1993 |volume=18 |issue=2–3 |pages=197–219 |doi=10.1016/0094-730X(93)90007-Q }}</ref> and about 74% recover by their early teens. In particular, girls are shown to recover more often.<ref name="Ward16">{{harvnb|Ward|2006|p= 16}}</ref><ref name="fn 34">{{cite journal|author= Yairi, E|title=On the Gender Factor in Stuttering|journal=Stuttering Foundation of America Newsletter|date=Fall 2005|page= 5}}</ref>

Prognosis is guarded with later age of onset: children who start stuttering at age 3½ years or later,<ref name="Yairi2005"/> and/or duration of greater than 6–12 months since onset, that is, once stuttering has become established, about 18% of children who stutter after five years recover spontaneously.<ref name="fn 32">{{cite journal |last1=Andrews |first1=Gavin |last2=Hoddinott |first2=Susan |last3=Craig |first3=Ashley |last4=Howie |first4=Pauline |last5=Feyer |first5=Anne-Marie |last6=Neilson |first6=Megan |title=Stuttering: A Review of Research Findings and Theories circa 1982 |journal=Journal of Speech and Hearing Disorders |date=August 1983 |volume=48 |issue=3 |pages=226–246 |doi=10.1044/jshd.4803.226 |pmid=6353066 }}</ref> Stuttering that persists after the age of seven is classified as persistent stuttering, and is associated with a much lower chance of recovery.<ref name="Sander and Osborne" />