The authors sought to clarify the relationship between social support and negative affect for people who stutter, and reported participants who stuttered had significantly elevated levels of negative affect in interpersonal sensitivity, depressive mood and anxiety, lower levels of actual and ideal social support, and those who stuttered and who also had low social support had significantly elevated levels of negative affect.
Blumgart, Elaine, Tran, Yvonne, and Craid, Ashley. (2014). Social support and its association with negative affect in adults who stutter. Journal of Fluency Disorder doi.org/10.1016/j.jfludis.2014.02.002