Table 2 Maternal education, marital status and SES based on occupation in different learning and coordination disorders, birth cohorts 1996–2007
|  | Any learning or coordination disorder | Speech disorder only | Scholastic disorder only | Coordination disorder only | Mixed or ≥ 2 diagnostic classes | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Cases | Controls | Cases | Controls | Cases | Controls | Cases | Controls | Cases | Controls | |
(n = 28,192) | (n = 106,616) | (n = 11,142) | (n = 42,391) | (n = 3868) | (n = 14,945) | (n = 2600) | (n = 10,062) | (n = 10,582) | (n = 39,218) | |
Maternal characteristic | % | % | % | % | % | % | % | % | % | % |
College education or higher | ||||||||||
 Yes | 29.0 | 42.9 | 31.1 | 43.9 | 27.7 | 40.7 | 38.2 | 41.9 | 24.9 | 42.9 |
 No | 71.0 | 57.1 | 68.9 | 56.1 | 72.3 | 59.3 | 61.8 | 58.1 | 75.1 | 57.1 |
Marital status at birth a | ||||||||||
 Married or in a relationship | 92.1 | 95.0 | 93.0 | 94.7 | 92.1 | 95.8 | 92.2 | 95.2 | 91.0 | 94.8 |
 Single or widowed | 7.9 | 5.0 | 7.0 | 5.2 | 7.9 | 4.2 | 7.8 | 4.8 | 9.0 | 5.2 |
SES based on occupation at birth b | ||||||||||
 White collar workers or higher | 52.2 | 62.6 | 53.3 | 62.6 | 53.7 | 62.5 | 60.7 | 62.2 | 48.3 | 62.7 |
 Blue collar workers and others | 47.8 | 37.4 | 46.7 | 37.4 | 46.3 | 37.5 | 39.3 | 37.8 | 51.7 | 37.3 |
Multiple risk factors c | ||||||||||
 None of the studied risk factors | 24.9 | 36.9 | 26.2 | 37.6 | 25.4 | 35.6 | 33.6 | 36.2 | 21.2 | 36.9 |
 1 of studied maternal risk factors | 30.5 | 30.9 | 31.0 | 30.5 | 31.0 | 31.9 | 30.0 | 31.0 | 29.8 | 31.1 |
 2 of studied maternal risk factors | 40.1 | 29.7 | 39.0 | 29.5 | 39.2 | 30.5 | 32.6 | 30.2 | 43.4 | 29.5 |
 3 of studied maternal risk factors | 4.5 | 2.4 | 3.8 | 2.4 | 4.4 | 2.0 | 3.9 | 2.7 | 5.5 | 2.6 |