Outcome of Home-Based Early Intervention for Autism in Sri Lanka: Follow-Up of a Cohort and Comparison with a Nonintervention Group

Table 2

Statistical significance of mean difference in assessment scores in domains of measurement between experimental group () and comparison group ().

Measure	Mean difference in assessment scores (95% CI)
Sustained eye contact
Before intervention (at intake)	−15.76 (−20.60 to −10.91)	−6.45	<0.001
Intervention
At 3 months	28.27 (19.02–37.51)	6.06	<0.001
At 6 months	50.53 (41.84–59.21)	11.53	<0.001
Response to name
Before intervention (at intake)	−16.50 (−21.55 to −11.44)	−6.47	<0.001
Intervention
At 3 months	26.72 (16.54–36.90)	5.52	<0.001
At 6 months	50.51 (40.98–60.05)	10.50	<0.001
Social reciprocity
Before intervention (at intake)	−13.94 (−18.62 to −9.27)	−5.91	<0.001
Intervention
At 3 months	24.44 (15.31–33.55)	5.31	<0.001
At 6 months	45.49 (37.62–53.34)	11.48	<0.001
Imitative behavior
Before intervention (at intake)	−2.93 (−4.74 to −1.12)	−3.20	0.002
Intervention
At 3 months	36.58 (28.50–44.65)	8.98	<0.001
At 6 months	57.30 (50.78–63.83)	17.42	<0.001
Pointing
Before intervention (at intake)	−11.30 (−15.71 to −6.89)	−5.08	<0.001
Intervention
At 3 months	18.38 (8.98–27.78)	3.88	<0.001
At 6 months	42.89 (33.90–51.88)	9.46	<0.001

95% CI: 95% confidence interval; : paired distribution; : statistical significance at 0.05.