Table 1 Summary of characteristics of 18 reviews with data disaggregated for children under five
Category and description | N (%) | |
|---|---|---|
Disability domaina | Motor impairment | 66 (26%) |
Cognitive impairment | 6 (2%) | |
Sensory impairments | 19 (7%) | |
Behavioural disorders | 160 (65%) | |
Target disability | Developmental delay and at risk | 26 (10%) |
Cerebral palsy | 46 (18%) | |
Hearing impairment | 19 (8%) | |
ASD | 128 (51%) | |
ADHD | 32 (13%) | |
Research focus | Prevention | 2 (11%) |
Early detection | 3 (17%) | |
Early intervention | 12 (67%) | |
Early prevention and intervention | 1 (5%) | |
Country income statusb | High | 20 (67%) |
Middle | 10 (33%) | |
Low | 0 (0%) | |
Decade of publication | 2000 | 0 (0%) |
2010 | 9 (50%) | |
2020 | 9 (50%) | |
Sample size |  ≤ 100 | 1 (6%) |
101–1000 | 5 (28%) | |
1001–2000 | 6 (33%) | |
2001–3000 | 0 (0%) | |
 > 3000 | 6 (33%) | |
Confidence | Low | 2 (11%) |
Moderate | 7 (39%) | |
High | 9 (50%) | |