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Key clinical point: The use vs non-use of antihistamines during later stages (20-36 weeks) of pregnancy increased the risk for early-onset preeclampsia in women with allergy, whereas the risk was insignificant with antihistamine use before (<6 months) or during early stages of (<20 weeks) pregnancy.
Major finding: Compared with no antihistamine use, the risk for early-onset preeclampsia (<34 weeks in pregnancy) was high among women with allergy who used antihistamines during late pregnancy (odds ratio [OR] 1.8; 95% CI 1.5-2.2), but was insignificant among those who used antihistamines before or during early pregnancy.
Study details: Findings are from a population-based cohort study including 692,487 pregnancies in women with allergy; 101,287 women used antihistamines either before or during early or late pregnancy.
Disclosures: This study was funded by the University of Bergen. No conflicts of interest were declared.
Source: Sande AK et al. Use of antihistamines before or during pregnancy and risk of early-onset pre-eclampsia in allergic women: A population-based cohort study. BMJ Open. 2022;12(10):e061837 (Oct 7). Doi: 10.1136/bmjopen-2022-061837
Key clinical point: The use vs non-use of antihistamines during later stages (20-36 weeks) of pregnancy increased the risk for early-onset preeclampsia in women with allergy, whereas the risk was insignificant with antihistamine use before (<6 months) or during early stages of (<20 weeks) pregnancy.
Major finding: Compared with no antihistamine use, the risk for early-onset preeclampsia (<34 weeks in pregnancy) was high among women with allergy who used antihistamines during late pregnancy (odds ratio [OR] 1.8; 95% CI 1.5-2.2), but was insignificant among those who used antihistamines before or during early pregnancy.
Study details: Findings are from a population-based cohort study including 692,487 pregnancies in women with allergy; 101,287 women used antihistamines either before or during early or late pregnancy.
Disclosures: This study was funded by the University of Bergen. No conflicts of interest were declared.
Source: Sande AK et al. Use of antihistamines before or during pregnancy and risk of early-onset pre-eclampsia in allergic women: A population-based cohort study. BMJ Open. 2022;12(10):e061837 (Oct 7). Doi: 10.1136/bmjopen-2022-061837
Key clinical point: The use vs non-use of antihistamines during later stages (20-36 weeks) of pregnancy increased the risk for early-onset preeclampsia in women with allergy, whereas the risk was insignificant with antihistamine use before (<6 months) or during early stages of (<20 weeks) pregnancy.
Major finding: Compared with no antihistamine use, the risk for early-onset preeclampsia (<34 weeks in pregnancy) was high among women with allergy who used antihistamines during late pregnancy (odds ratio [OR] 1.8; 95% CI 1.5-2.2), but was insignificant among those who used antihistamines before or during early pregnancy.
Study details: Findings are from a population-based cohort study including 692,487 pregnancies in women with allergy; 101,287 women used antihistamines either before or during early or late pregnancy.
Disclosures: This study was funded by the University of Bergen. No conflicts of interest were declared.
Source: Sande AK et al. Use of antihistamines before or during pregnancy and risk of early-onset pre-eclampsia in allergic women: A population-based cohort study. BMJ Open. 2022;12(10):e061837 (Oct 7). Doi: 10.1136/bmjopen-2022-061837