| Sample | Responsive Behaviours |
---|---|---|
N (percentage of data present) | Mean(SD) | |
Initial assessment | 16,804(100) | 1.67(2.51) |
3Â months | 14,266(84.9) | 1.88(2.66) |
6Â months | 12,284(73.1) | 1.97(2.72) |
9Â months | 10,788(64.2) | 2.03(2.71) |
12Â months | 9309(55.4) | 2.07(2.71) |
15Â months | 7898(47.0) | 2.12(2.73) |
18Â months | 6688(39.8) | 2.20(2.76) |
21Â months | 5713(34.0) | 2.25(2.78) |
24Â months | 4772(28.4) | 2.32(2.83) |
27Â months | 3831(22.8) | 2.35(2.81) |
30Â months | 2840(16.9) | 2.40(2.88) |