Table 1 Characteristics of women with potential occupational exposure to endocrine disrupting chemicals (EDC), women unexposed to EDC (internal references) and all occupationally active women in Copenhagen and Aarhus in the time period from 1984 to 2010 (external references)
Exposed to EDC (n = 582) | Internal references (n = 620) | External references (n = 346,544) | ||||
|---|---|---|---|---|---|---|
n | % | n | % | n | % | |
Maternal age | ||||||
16–24 years | 106 | 18.2 | 115 | 18.6 | 44,414 | 12.8 |
25–34 years | 422 | 72.5 | 417 | 67.3 | 243,236 | 70.2 |
35–45 years | 54 | 9.3 | 88 | 14.2 | 58,894 | 17.0 |
Year of birth | ||||||
1984–1989 | 90 | 15.5 | 65 | 10.5 | 76,423 | 22.1 |
1990–1994 | 92 | 15.8 | 57 | 9.2 | 62,752 | 18.1 |
1995–1999 | 138 | 23.7 | 120 | 19.4 | 60,723 | 17.5 |
2000–2004 | 141 | 24.2 | 193 | 31.1 | 64,324 | 18.6 |
2005–2010 | 121 | 20.8 | 185 | 29.8 | 82,322 | 23.8 |
Parity | ||||||
First birth | 342 | 59.3 | 329 | 53.8 | 175,945 | 51.0 |
Second birth | 173 | 30.0 | 206 | 33.7 | 122,148 | 35.4 |
Third or more births | 62 | 10.8 | 77 | 12.6 | 46,926 | 13.6 |
Missing | 1,538 | |||||
Socioeconomic statusa | ||||||
Group 1 | 31 | 5.3 | 62 | 10.1 | 49,973 | 14.4 |
Group 2 | 87 | 15.0 | 92 | 14.9 | 64,780 | 18.7 |
Group 3 | 220 | 37.8 | 274 | 44.5 | 98,666 | 28.5 |
Group 4 | 97 | 16.7 | 47 | 7.6 | 14,162 | 4.1 |
Unknown | 147 | 25.3 | 141 | 22.9 | 118,657 | 34.3 |
Missing | 310 | |||||
Ethnicity | ||||||
Danish | 501 | 86.2 | 556 | 90.3 | 313,238 | 91.1 |
Foreign | 80 | 13.8 | 60 | 9.7 | 30,741 | 8.9 |
Missing | 2,570 | |||||
Smoking habits during pregnancyb | ||||||
No | 364 | 77.9 | 410 | 76.2 | 206,286 | 80.1 |
Yes | 103 | 22.1 | 128 | 23.8 | 51,242 | 19.9 |
Missing | 89,213 | |||||