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Control Group A (sperm donators & fertile partners of infertile woman)
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- Direct access to the subject (face to face recruitment & blood sampling)
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- Older than cases/difficult to recruit subjects below 25 years old
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- More concerned by the topic/good participation rate
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- Live with infertile woman/more exposed to reproductive toxicant than general population?
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- Sperm count available
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- Regional recruitment
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Control Group B (partners of pregnant woman hospitalized for pathological pregnancy)
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- Same age group than cases
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- More difficult to approach (visit during evening/week-end)
|
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- Direct access to the subject (face to face recruitment & blood sampling)
|
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- Presumably fecund
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- No available serologies (need to store blood samples in separate areas)
|
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- Regional recruitment
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- Link between subjects’ exposures partners’ pathological pregnancy?
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| |
- Large population/easy to match with cases
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