Table 5 Frequency of RTT characteristics in the Irish population compared to populations in other countries
Characteristic | Percentage of individuals with characteristic | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
US | IT | DK | NL | SE | AU | UK | BR | PL | INTL | IE | |
Regression | 90 | – | – | – | – | 76 | 95.6 | – | – | 80 | 96 Δ |
Behavioural regression | – | – | – | – | – | – | 77 | – | – | – | 68 ∇ |
Speech regression | 87 | 50 | – | – | 23 | – | – | – | – | – | 84 |
Motor regression | 55 | – | – | – | – | – | – | – | – | – | 84 Δ |
Regression of hand use | – | – | 41 | 41 | – | – | – | – | – | – | 88 Δ |
Stereotypies | 86 | 98* | – | 96 | – | 92 | 99** | – | 70 | 69 | 84 |
GI problems | 92 | 89 | – | – | – | 83 | 82 | 81 | – | 40 | 84 |
Verbal communication | – | 16 | – | 13 | – | 5 | 21 | – | – | – | 16 |
Non-verbal communication | – | 76 | – | 86 | 65 | 39 | 79 | – | – | 70 | 80 |
Eye communication | – | – | 85 | – | – | 92 | 91 | – | – | 89 | 85 |
Ability to sit | – | 37 | 85** | – | – | – | – | 59 | – | – | 56 |
Ability to walk | – | 20 | 44* | 33 | 80** | 56** | 66** | 22 | – | 44* | 20 |
Ability to stand | – | – | – | – | – | 46 | 28 | – | – | – | 52 Δ |
Walking with support | – | 41 | 41 | – | – | 43 | 64 | 11 | – | – | 52 |
Seizures | 81 | 82 | 80 | 61 | – | 81 | 63 | 69 | 43 | 65 | 76 |
Resistance to anti-epileptics | – | 36* | 46** | 18 | – | 36* | – | – | – | 25 | 12 ∇ |
Breathing abnormalities | – | 70 | 75 | 81* | 85* | – | 66 | – | 87* | 51 | 64 |
Bloating | – | – | – | – | – | 53 | – | – | – | – | 52 |
Cold extremities | – | 87 | – | 56 | 93 | – | – | – | – | 50 | 84 |
Sphincter control | – | – | – | – | – | – | 30 | – | – | 89 | 36 |
Skeletal abnormalities | 27 | 56 | 83* | 70 | 74 | 66 | 67 | 59 | 13 | 50 | 60 |
Involuntary movements | – | – | – | 40 | – | – | – | – | – | – | 84 Δ |
Bruxism | – | – | – | – | – | – | – | – | 22 | 61 | 56 |
Anxiety | 14 | – | – | – | – | 79 | 74 | – | – | – | 71 |
Self-injury | – | – | – | – | – | 62** | 57** | – | – | – | 21 ∇ |
Trouble night sleep | – | 77 | – | 16 | – | 63 | 46 | – | – | 47 | 63 |
Sadness | – | – | – | 12 | – | – | – | – | – | – | 75 Δ |