Percent safe response scores by type of activity (caution v use of device) for all children and by age group. Data presented as mean (SD)
| Socioeconomic level | ||||
|---|---|---|---|---|
| Age | Upper | Middle | Lower | p Value |
| Caution | ||||
| 0–1 | 79.3 (10.5) | 78.3 (10.9) | 79.6 (11.1) | 0.85 |
| 1–4 | 69.9 (14.2) | 71.2 (16.1) | 71.9 (17.8) | 0.43 |
| 5–9 | 75.0 (15.8) | 63.7 (16.8) | 59.9 (16.7) | <0.001 |
| 10–12 | 84.0 (14.0) | 80.8 (15.0) | 83.4 (15.6) | 0.37 |
| Total | 74.1 (14.8) | 71.8 (16.8) | 71.5 (18.8) | 0.04 |
| Device | ||||
| 0–1 | 56.0 (19.4) | 32.9 (24.2) | 20.9 (22.7) | <0.001 |
| 1–4 | 46.7 (24.9) | 26.8 (23.4) | 25.2 (26.3) | <0.001 |
| 5–9 | 46.2 (19.6) | 24.7 (23.8) | 9.5 (13.0) | <0.001 |
| 10–12 | 35.9 (21.1) | 16.0 (21.3) | 3.4 (13.3) | <0.001 |
| Total | 47.0 (22.9) | 24.6 (23.6) | 15.4 (22.3) | <0.001 |