| Question | HABLA treated | Control |
| Maternal Education | 8.9 (3.8) | 7.7 (3.9) |
| Paternal Education | 7.0 (3.6) | 7.4 (4.8) |
| Age when shared reading began | 26 months (13.5) | 26 months (15.7) |
| Number of children’s books | 61 - 80 (0.96) | 21 - 40 (2.35) |
| Reading at bedtime | 4.0 (2.9) | 1.0 (2.23) |
| Reading at other times | 5.6 (1.1) | 1.8 (2.2) |
| Child asks to read | 4.8 (0.4) | 2.7 (1.6) |
| Parent teaches printing | 4.8 (0.5) | 3.2 (1.4) |
| Parent teaches reading | 4.6 (0.7) | 2.6 (1.4) |