Table 1: Presentation of demographic characteristics by diagnostic group.

Demographic variablesSelective mutism group
𝑛 = 2 9
Community comparison group
𝑛 = 2 8

Child’s age
M7.597.99
SD2.682.16

Child’s gender
# female1820

Child’s ethnicity
(i) Asian0%7%
(ii) Black0%7%
(iii) Latino or Hispanic7%11%
(iv) Non-Hispanic White83%57%
(v) Mixed heritage10%18%

Number of siblings
M1.451.32
SD1.24.82

Mother’s age
M36.7939.33
SD7.645.05

Father’s age
M38.5740.74
SD7.345.92

Parental marital history
(i) Married86.30%78.60%
(ii) Divorced/
separated
10.30%7.20%
(iii) Never married3.40%14.20%

Child’s educational placement
(i) Public75%100%
(ii) Private16.67%0%
(iii) Home school8.33%0%

* 𝑃 < . 0 0 1 4 .