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How common is it?
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0.7% pooled when limited to diagnostic-interview perinatal studies†
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Is it more common among pregnant women?
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Not clearly higher prevalence, but course/relapse risk changes substantially
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Are pregnant women at higher risk?
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Yes for mood episodes among women with established BD
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How much higher is the risk?
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In women with established BD, ~51.4% had a bipolar-spectrum episode during pregnancy in one study
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How often can it be missed?
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Very high if bipolar depression is mistaken for unipolar/perinatal depression
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Does it show up differently among pregnant women?
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Yes contextually
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How might it look different?
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Sleep changes, medication decisions and pregnancy-related emotional changes complicate recognition
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What commonly occurs alongside it?
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Anxiety; depression; substance use
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What can it be confused with?
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Unipolar depression; normal pregnancy-related changes; thyroid disease; medication/substance effects
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Common screening tool
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MDQ can be used cautiously
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Separate screening tool for pregnant women
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No universally accepted pregnancy-specific BD screener
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