Table 2.
Acquired developmental milestones: expressive and receptive language
|
Skill |
Classic (
N
= 542, 5 without answers) |
Atypical better (
N
= 50) |
Atypical poorer (
N
= 46, 1 without answers) |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Acquired | Lost | Retained | Acquired | Lost | Retained | Acquired | Lost | Retained | |
| Receptive communication | |||||||||
| Fix and follow |
94 (503) |
28 (143) |
86 (464) |
94 (47) |
8.5 (4)* |
94 (47) ● |
89 (40) |
7.6 (3)* |
85 (39) |
| Quiet to voice |
85 (457) |
26 (118) |
77 (416) |
84 (42) |
7.1 (3)* |
84 (42) |
71 (32)* |
0 (0) |
71 (32) |
| Inhibit to no |
66 (357) |
25 (88) |
56 (303) |
76 (38) |
7.9 (3) ● |
72 (36)* |
47 (21)* |
10 (2) |
42 (19) ● |
| Follow command with gesture |
55 (295) |
36 (107) |
42 (225) |
74 (37)* |
16 (6)* |
68 (34) ◊ |
29 (13) ◊ |
7.7 (1)* |
27 (12) ● |
| Follow command with no gesture |
45 (241) |
32 (76) |
36 (195) |
70 (35) ◊ |
20 (7) |
62 (31) ◊ |
24 (11)* |
9.1 (1) |
22 (10) ● |
| Expressive communication | |||||||||
| Social smile |
99 (535) |
16 (85) |
96 (518) |
100 (50) |
10 (5) |
100 (50) |
98 (44) |
14 (6) |
96 (43) |
| Coo |
93 (499) |
36 (178) |
67 (360) |
98 (49) |
14 (7)* |
86 (43) ◊ |
78 (35)* |
31 (11) |
56 (25) |
| Babble |
95 (511) |
51 (259) |
64 (346) |
98 (49) |
18 (9) ◊ |
90 (45) ◊ |
80 (36) ◊ |
33 (12) |
62 (28) |
| Single words |
77 (412) |
86 (354) |
21 (113) |
94 (47)* |
55 (26) ◊ |
68 (34) ◊ |
36 (16) ◊ |
13 (2) ◊ |
36 (16) ● |
| Phrases |
18 (98) |
76 (74) |
5.0 (28) |
54 (27) ◊ |
41 (11) ◊ |
42 (21) ◊ |
6.7 (3) |
0 (0) |
6.7 (3) |
| Gestures |
53 (286) |
86 (246) |
10 (56) |
70 (35)* |
46 (16) ◊ |
44 (22) ◊ |
31 (14)* |
50 (7)* |
18 (8) |
| Points for wants | 23 (121) | 65 (79) | 9.5 (51) | 58 (29) ◊ | 28 (8) ◊ | 44 (22) ◊ | 4.4 (2)* | 100 (2) | 0 (0) ◊ |
% (N = number): p values for Classic vs. Atypical better and Classic vs. Atypical poorer are indicated for acquired, lost, and retained skills ●<0.05; *<0.01; ◊<0.001.