Table 3.
Distribution of job titles among mothers of ALL cases and population controls during the period ranging from 2 years before pregnancy up to birth of the index child.
| Cases | Controls | |
|---|---|---|
| No. not working (%) | 178 (22.5) | 173 (21.9) |
| No. working | 612 | 617 |
| No. of jobs held (average per person) | 792 (1.29) | 820 (1.33) |
| Job titles by order of frequency (highest to lowest) | ||
| Secretary | Secretary | |
| Clerk (general office) | Clerk (general office) | |
| Sewing machine operator | Waitress | |
| Waitress | Nurse (general duty) | |
| Cashier (clerical) | Cashier (clerical) | |
| Nurse (general duty) | Teller | |
| Cosmetologist | Sales clerk | |
| Sales clerk | Elementary school teacher | |
| Teller | Sewing machine operator | |
| Elementary school teacher | Cashier (customer service) | |
| Baby sitter | Cosmetologist | |
| Receptionist | Receptionist | |
| Computer operator | Baby sitter | |
| Accountant clerk | Accountant clerk | |
| Nurse’s aide | Counterwoman (cafeteria) | |