Table 6. Categorical Socio-demographic Characteristics of InterRett Subjects and Families compared with the ARSD.
| ARSD | InterRett (complete) |
InterRett (≥1976) |
RRR | 95%CI | ||
|---|---|---|---|---|---|---|
| Birth Order | n | 215 | 408 | 370 | ||
| Only (%) | 10.7 | 16.5 | 16.4 | 1.89* | (1.02, 3.48) | |
| 1st (%) | 33.0 | 25.8 | 24.6 | 0.93 | (0.59, 1.47) | |
| 2nd (%) | 15.4 | 10.1 | 10.2 | 0.74 | (0.41, 1.35) | |
| 3rd (%) | 4.6 | 2.8 | 2.8 | 0.52 | (0.18, 1.45) | |
| ≥4th (%) | 1.4 | 1.0 | 1.0 | 0.42 | (0.07, 2.68) | |
| Youngest (%) | 34.9 | 43.8 | 45.0 | |||
| Overall χ2 p value | 0.041a | 0.027 a | ||||
| Mother's Education | n | 268 | 332 | 299 | ||
| Some High School (%) | 36.5 | 6.8 | 6.5 | |||
| School Accreditation (%) | 17.2 | 26.3 | 24.4 | 7.49* | (3.83, 14.65) | |
| Vocational Education and | 28.0 | 18.3 | 18.7 | 3.29* | (1.69, 6.43) | |
| Training (%) | ||||||
| Higher Education (%) | 18.3 | 48.6 | 50.4 | 12.34* | (6.49, 23.44) | |
| Overall χ2 p value | <0.001 a | <0.001a | ||||
| Father's Education+ | n | 245 | 326 | 295 | ||
| Some High School (%) | 21.6 | 9.6 | 9.6 | |||
| School Accreditation (%) | 18.4 | 21.8 | 21.4 | |||
| Vocational Education and | 43.3 | 19.4 | 18.8 | |||
| Training (%) | ||||||
| Higher Education (%) | 16.7 | 49.2 | 50.2 | |||
| Overall χ2 p value | <0.001 a | <0.001a | ||||
| Mother's Occupation | n | 294 | 551 | 505 | ||
| Managers (%) | 5.8 | 18.2 | 18.2 | 15.65* | (3.87, 63.36) | |
| Professional (%) | 14.6 | 25.4 | 25.4 | 9.69* | (2.55, 36.85) | |
| Trade & Technician (%) | 5.4 | 8.9 | 8.7 | 8.54* | (2.07, 35.30) | |
| Community & Personal | 12.3 | 10.5 | 10.9 | 4.89* | (1.25, 19.07) | |
| Service (%) | ||||||
| Clerical & Admin (%) | 19.4 | 7.8 | 8.1 | 2.79 | (0.72, 10.80) | |
| Sales (%) | 7.8 | 3.4 | 3.2 | 3.97 | (0.94, 16.71) | |
| Machine Operator & Driver (%) | 0.0 | 0.4 | 0.2 | 0 | - | |
| Labourers (%) | 5.8 | 0.5 | 0.6 | |||
| Miscellaneous (%) | 28.9 | 24.9 | 24.7 | |||
| Overall χ2 p value | <0.001 a | <0.001a | N/A | |||
| Father's Occupation+ | n | 295 | 553 | 506 | ||
| Managers (%) | 18.0 | 16.8 | 16.8 | |||
| Professional (%) | 13.6 | 34.2 | 34.2 | |||
| Trade & Technician (%) | 23.1 | 14.5 | 14.0 | |||
| Community & Personal | 4.4 | 6.2 | 6.7 | |||
| Service (%) | ||||||
| Clerical & Admin (%) | 1.4 | 6.5 | 6.9 | |||
| Sales (%) | 3.4 | 3.3 | 3.2 | |||
| Machine Operator & Driver (%) | 8.2 | 4.3 | 4.4 | |||
| Labourers (%) | 10.2 | 1.4 | 1.4 | |||
| Miscellaneous (%) | 17.7 | 12.8 | 12.4 | |||
| Overall χ2 p value | <0.001 a | <0.001a | ||||
+
Multinomial logistic regression was not performed
a
when compared to the ARSD
*
RRR: p<0.05