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- W2380597842 abstract "Objective:To collect the cases with spontaneous preterm birth in recent eleven years,analyze the effects of seasonal pattern and fetal sex on spontaneous preterm birth.Methods:4 081 cases with spontaneous preterm birth from 1997 to 2007 were collected retrospectively,the rates of spontaneous preterm birth in recent eleven years were compared,the effects of different seasonal patterns and fetal sexes on spontaneous preterm birth were compared.Results:The rate of spontaneous preterm birth in recent eleven years increased gradually,changing with seasons,the rate of spontaneous preterm birth peaked from August to December,from January to February;the rates of spontaneous preterm birth in autumn and winter were significantly higher than that in summer(P0.0071),the rate of spontaneous preterm birth in winter was significantly higher than that in spring(P0.0071),there was no significant difference in rate of spontaneous preterm birth between spring and summer,autumn,as well as between autumn and winter(P0.0071),there was significant difference in rate of spontaneous preterm birth between male fetuses and female fetuses,the rate of spontaneous preterm birth in male fetuses was significantly higher than that in female fetuses(P0.05).Conclusion:The rate of spontaneous preterm birth in recent eleven years increases gradually,spontaneous preterm birth is related to seasonal pattern and fetal sex." @default.
- W2380597842 created "2016-06-24" @default.
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- W2380597842 date "2011-01-01" @default.
- W2380597842 modified "2023-09-25" @default.
- W2380597842 title "Analysis on effects of seasonal pattern and fetal sex on spontaneous preterm birth" @default.
- W2380597842 hasPublicationYear "2011" @default.
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