Table 1 Socio-demographic data of participants with or without regression
From: Bayonet-shaped language development in autism with regression: a retrospective study
| Fluent and non-fluent speakers | Fluent speakers | ||||||
|---|---|---|---|---|---|---|---|
| ELR-W | ELR-P | No-ELR | p-value | ELR | No-ELR | p-value | |
| n (%) | 231 (11%) | 109 (5%) | 1707 (83%) | 136 (12%) | 1017 (88%) | ||
| Mean age (year: months) | 8:9 | 9:6 | 9:0 | 0.23 | 10:10 | 10:1 | 0.011 |
| Gender (male), % | 87% | 87% | 87% | 0.98 | 90% | 88% | 0.57 |
| Annual household income, % (n) | |||||||
| ≤ $ 50_000 | 21% (45) | 20% (20) | 15% (250) | 14% (18) | 15% (148) | ||
| $51,000–$100,000 | 37% (82) | 41% (41) | 41% (668) | 0.26 | 44% (56) | 43% (417) | 0.942 |
| ≥ $100,000 | 42% (92) | 40% (40) | 44% (719) | 42% (54) | 42% (412) | ||
| Mother’s highest level of education, % (n) | |||||||
| No college | 45% (102) | 47% (51) | 37% (628) | 47% (63) | 37% (376) | ||
| College | 32% (72) | 27% (29) | 37% (630) | 0.033 | 30% (40) | 37% (372) | 0.089 |
| Graduate | 23% (53) | 27% (29) | 26% (445) | 24% (32) | 26% (267) | ||
| Mean intellectual quotient (SD) | |||||||
| NVIQ | 79 (24) | 78 (28) | 89 (23) | 3.3e−13 | 92 (20) | 96 (19) | 0.038 |
| NVIQ, pairwise comparisonsa | 79 | – | 89 | 3.0e−9 | |||
| – | 78 | 89 | 1.5e−6 | ||||
| 79 | 78 | – | 1 | ||||
| VIQ | 68 (29) | 70 (33) | 85 (27) | 1.3e−21 | 88 (22) | 95 (21) | 4.6e−4 |
| VIQ, pairwise comparisonsa | 68 | – | 85 | 1.1e−17 | |||
| – | 70 | 85 | 2.5e−07 | ||||
| 68 | 70 | – | 1 | ||||
| VIQ/NVIQ | 0.84 (0.23) | 0.88 (0.23) | 0.95 (0.21) | 1.4e−13 | 0.97 (19) | 0.99 (18) | 0.081 |
| VIQ/NVIQ, pairwise comparisonsa | 0.84 | – | 0.95 | 1.9e−12 | |||
| – | 0.88 | 0.95 | 2.3e−3 | ||||
| 0.84 | 0.88 | – | 0.40 | ||||
| EPILEPSY (%) | 6 (3%) | 4 (4%) | 28 (2%) | 0.21 | 3 (2%) | 13 (1%) | 0.36 |
| Association of epilepsy with ELR, (%) | 5 (2%) | 4 (4%) | 2 (1%) | ||||