Table 1

Effect size (95% CI) across measure types and populations

At riskDLDASDAll
Expressive language0.22 (0.04 to 0.41)0.83 (0.38 to 1.29)0.19 (0.02 to 0.36)0.28 (0.15 to 0.40)
Receptive language0.28 (0.00 to 0.60)0.92 (0.07 to 1.76)0.09 (−0.08 to 0.27)0.29 (0.09 to 0.48)
Social communication0.18 (0.00 to 0.43)0.37 (−0.1 to 0.93)0.21 (0.05 to 0.40)0.24 (0.13 to 0.35)
Engagement, attention0.36 (−0.10 to 0.83)Too few studies0.55 (0.26 to 0.85)0.49 (0.27 to 0.72)
Parental use of support strategies0.58 (0.37 to 0.78)Too few studies0.44 (−0.08 to 0.96)0.55 (0.33 to 0.78)
  • ASD, autistic spectrum disorder; DLD, developmental language disorder.