Table 1 Comparison frequency of RBS-R individual endorsements across different samples
RBS-R item | Description | ASD (n = 207) | PWS (n = 45) | χ2 (df = 1) | p | PWS-deletion (n = 25) | PWS-disomy (n = 20) | χ2 (df = 1) | p | |
|---|---|---|---|---|---|---|---|---|---|---|
Stereotyped behavior | 01 | Body | 36.7 | 13.3 | 9.206 | 0.003 | 8 | 20 | 1.385 | ns |
02 | Head | 30.0 | 13.3 | 5.181 | 0.026 | 8 | 20 | 1.385 | ns | |
03 | Finger | 67.6 | 35.6 | 16.487 | <0.001 | 36 | 35 | 0.005 | ns | |
04 | Locomotion | 62.8 | 8.9 | 44.111 | <0.001 | 4 | 15 | 1.660 | ns | |
05 | Object | 59.9 | 15.6 | 29.125 | <0.001 | 16 | 15 | 0.008 | ns | |
06 | Sensory | 76.8 | 35.6 | 29.650 | <0.001 | 40 | 30 | 0.485 | ns | |
Self-injurious behavior | 07 | Hit body | 40.6 | 4.4 | 21.470 | <0.001 | 4 | 5 | 0.026 | ns |
08 | Hit surface | 29.0 | 4.4 | 12.001 | <0.001 | 8 | 0 | 1.674 | ns | |
09 | hit object | 18.4 | 4.4 | 5.358 | 0.023 | 8 | 0 | 1.674 | ns | |
10 | bite self | 23.2 | 8.9 | 4.615 | 0.040 | 16 | 0 | 3.512 | ns | |
11 | Pull hair/skin | 21.7 | 15.6 | 0.863 | ns | 20 | 10 | 0.846 | ns | |
12 | Scratch | 31.9 | 26.7 | 0.471 | ns | 40 | 10 | 5.114 | 0.040 | |
13 | Inserts | 15.9 | 6.7 | 2.597 | ns | 8 | 5 | 0.161 | ns | |
14 | Picks skin | 40.1 | 60.0 | 5.827 | 0.020 | 72 | 45 | 3.375 | ns | |
Compulsive behavior | 15 | Order | 61.8 | 64.4 | 0.084 | ns | 64 | 65 | 0.005 | ns |
16 | Complete | 62.3 | 46.7 | 3.759 | 0.065 | 36 | 60 | 2.571 | ns | |
17 | Wash | 34.8 | 28.9 | 0.606 | ns | 32 | 25 | 0.265 | ns | |
18 | Check | 24.2 | 4.4 | 8.911 | 0.002 | 4 | 5 | 0.026 | ns | |
19 | Count | 37.2 | 22.2 | 3.667 | 0.059 | 24 | 20 | 0.103 | ns | |
20 | Hoard | 52.2 | 42.2 | 1.464 | ns | 40 | 45 | 0.114 | ns | |
21 | Repeat | 49.8 | 33.3 | 4.118 | 0.048 | 36 | 30 | 0.180 | ns | |
22 | Touch/Tap | 50.7 | 26.7 | 8.602 | 0.005 | 32 | 20 | 0.818 | ns | |
Ritualistic behavior | 23 | Eating | 64.3 | 37.8 | 10.753 | 0.001 | 48 | 25 | 2.501 | ns |
24 | Sleeping | 67.1 | 46.7 | 6.691 | 0.016 | 52 | 40 | 0.643 | ns | |
25 | Self care | 47.8 | 31.1 | 4.175 | 0.048 | 36 | 25 | 0.627 | ns | |
26 | Transportation | 47.8 | 24.4 | 8.216 | 0.005 | 32 | 15 | 1.739 | ns | |
27 | Play/leisure | 53.6 | 33.3 | 6.087 | 0.021 | 36 | 30 | 0.180 | ns | |
28 | Communication | 69.6 | 60.0 | 1.668 | ns | 56 | 65 | 0.375 | ns | |
Sameness behavior | 29 | Object | 54.1 | 40.0 | 2.945 | ns | 56 | 20 | 6.000 | 0.018 |
30 | Place | 51.2 | 6.7 | 29.877 | <0.001 | 8 | 5 | 0.161 | ns | |
31 | Interruption | 83.6 | 62.2 | 10.440 | 0.003 | 68 | 55 | 0.799 | ns | |
32 | walking | 28.0 | 4.4 | 11.325 | <0.001 | 4 | 5 | 0.026 | ns | |
33 | Sitting | 42.5 | 26.7 | 3.877 | 0.064 | 40 | 10 | 5.114 | 0.040 | |
34 | Appearance | 53.6 | 13.3 | 24.124 | <0.001 | 20 | 5 | 2.163 | ns | |
35 | door | 22.7 | 8.9 | 4.371 | 0.040 | 8 | 10 | 0.055 | ns | |
36 | videotapes | 75.4 | 26.7 | 39.443 | <0.001 | 28 | 25 | 0.051 | ns | |
37 | transition | 84.5 | 64.4 | 9.682 | 0.003 | 60 | 70 | 0.485 | ns | |
38 | routine | 70.5 | 46.7 | 9.418 | 0.003 | 56 | 35 | 1.969 | ns | |
39 | time | 56.5 | 37.8 | 5.368 | 0.022 | 52 | 20 | 4.840 | 0.035 | |
Restricted behavior | 40 | Preoccupation | 87.4 | 40.0 | 50.088 | <0.001 | 40 | 40 | 0.001 | ns |
41 | attachment | 66.7 | 20.0 | 33.606 | <0.001 | 16 | 25 | 0.563 | ns | |
42 | Part of object | 60.4 | 11.1 | 35.937 | <0.001 | 16 | 5 | 1.361 | ns | |
43 | movement | 51.2 | 4.4 | 33.007 | <0.001 | 8 | 0 | 1.674 | ns |