Table 2.
Comparison of early childhood SSD groups on adolescent demographics of gender, age, PIQ, and SES.
| Group | Adolescent demographic |
|||||||
|---|---|---|---|---|---|---|---|---|
| Male:female ratioa | Age in years M (SD) | PIQb,c M (SD) | SESc (%) |
|||||
| 1 | 2 | 3 | 4 | 5 | ||||
| No SSD-EC (n = 146) | 74:72 | 13.94 (2.07) | 109.28 (12.42) | 2% | 10% | 17% | 33% | 38% |
| SSD only (n = 77) | 50:27 | 13.86 (1.92) | 109.75 (14.18) | 0% | 7% | 13.5% | 39% | 40.5% |
| SSD + LI (n = 93) | 67:26 | 13.77 (1.93) | 95.68 (15.11) | 9% | 7% | 24% | 35% | 25% |
| Total (N = 316) | 191:125 | 13.87 (1.98) | 105.45 (15.00) | 4% | 8% | 18% | 35% | 35% |
Note. SSD = speech sound disorders; PIQ = Performance IQ scores from the Wechsler Intelligence Scale for Children–Third Edition (WISC-III) or Wechsler Adult Intelligence Scale–Fourth Edition (WAIS-IV); SES = Ratings on the Hollingshead Four Factor Index of Social Class (1 = low SES, 5 = high SES); LI = language impairment. For male:female ratio, χ2(2, 315) = 11.70, p = .003. For age in years, η2 = .001, F(2, 315) = 0.20, p = .818. For PIQ, η2 = .175, F(2, 264) = 27.71, p < .001. For SES, η2 = .035, χ2(8, 309) = 17.95, p = .022.
a
No SSD-EC differs from SSD only.
b
No SSD-EC differs from SSD + LI.
c
SSD differs from SSD + LI only.