Factors Associated with Blood Loss after Delivery in 1,294 Mothers with Full-Term Singleton Baby
Objectives: To clarify the predisposing factors associated with blood loss after delivery in mothers with full-term singleton babies. Methods: In this retrospective cohort study, we investigated 1,294 women who delivered singleton babies vaginally in 2011 at a medical center in Tokyo. We determined...
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| Veröffentlicht in: | Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene) 2016, Vol.71(3), pp.208-215 |
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| container_title | Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene) |
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| creator | HORIE, Saki NOMURA, Kyoko NAKAGAWA, Junko KIDO, Michiko SUGIMOTO, Mitsuhiro |
| description | Objectives: To clarify the predisposing factors associated with blood loss after delivery in mothers with full-term singleton babies. Methods: In this retrospective cohort study, we investigated 1,294 women who delivered singleton babies vaginally in 2011 at a medical center in Tokyo. We determined the amount of blood loss after delivery and covariates of age, parity, pre pregnancy body mass index (BMI), gestational weight gain (GWG), gestational week, pregnancy complications, lifestyles of smoking and drinking, placental weight, and infant weight and sex. Results: The majority of participants had lost less than 500 ml of blood (n=868, 67%), 21% lost between 500–799 ml of blood (n=273), 12% lost 800 ml or more of blood (n=153). The amount of blood loss statistically increased (p |
| doi_str_mv | 10.1265/jjh.71.208 |
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Methods: In this retrospective cohort study, we investigated 1,294 women who delivered singleton babies vaginally in 2011 at a medical center in Tokyo. We determined the amount of blood loss after delivery and covariates of age, parity, pre pregnancy body mass index (BMI), gestational weight gain (GWG), gestational week, pregnancy complications, lifestyles of smoking and drinking, placental weight, and infant weight and sex. Results: The majority of participants had lost less than 500 ml of blood (n=868, 67%), 21% lost between 500–799 ml of blood (n=273), 12% lost 800 ml or more of blood (n=153). The amount of blood loss statistically increased (p<0.001) as pre pregnancy BMI category level increased from underweight (<18.5 kg/m2), normal (18.5–22.9 kg/m2), to overweight/obesity (≥23 kg/m2). Compared with the least category of GWG <8.2 kg, ≥8.2 kg GWG was statistically associated with a larger amount of blood loss category (p=0.032). Multinomial logistic regression analyses demonstrated that with the reference pre pregnancy BMI 18.5–22.9 kg/m2, obese and obesity mothers with pre pregnancy BMI ≥23 kg/m2 were at an increased risk of blood loss [OR 2.28, 95%confidence interval (95%CI): 1.48–3.50 for the category of 500–799 ml and OR 2.15, 95%CI: 1.29–3.59 for a category of 800 ml≤)]. In addition, pregnancy induced hypertension (PIH) (p=0.010) and infant weight (p<0.0001) significantly increased the risk of blood loss. Conclusions: In mothers with full-term singleton babies, increased pre pregnancy BMI overweight/obesity, PIH, and infant weight, were suggested to be risk factors for increased amount of blood loss.</description><identifier>ISSN: 0021-5082</identifier><identifier>EISSN: 1882-6482</identifier><identifier>DOI: 10.1265/jjh.71.208</identifier><identifier>PMID: 27725424</identifier><language>jpn</language><publisher>Japan: The Japanese Society for Hygiene</publisher><subject>Adult ; Birth Weight ; blood loss after delivery ; Body Mass Index ; Causality ; Cohort Studies ; Female ; full-term singleton baby ; Humans ; Hypertension, Pregnancy-Induced ; Life Style ; Male ; Overweight ; Postpartum Hemorrhage - epidemiology ; Postpartum Hemorrhage - etiology ; predisposing factors ; Pregnancy ; Pregnancy Complications - epidemiology ; retrospective cohort study ; Retrospective Studies ; Risk Factors ; Weight Gain</subject><ispartof>Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene), 2016, Vol.71(3), pp.208-215</ispartof><rights>2016 The Japanese Society for Hygiene</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27725424$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>HORIE, Saki</creatorcontrib><creatorcontrib>NOMURA, Kyoko</creatorcontrib><creatorcontrib>NAKAGAWA, Junko</creatorcontrib><creatorcontrib>KIDO, Michiko</creatorcontrib><creatorcontrib>SUGIMOTO, Mitsuhiro</creatorcontrib><title>Factors Associated with Blood Loss after Delivery in 1,294 Mothers with Full-Term Singleton Baby</title><title>Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)</title><addtitle>Jpn. J. Hyg.</addtitle><description>Objectives: To clarify the predisposing factors associated with blood loss after delivery in mothers with full-term singleton babies. Methods: In this retrospective cohort study, we investigated 1,294 women who delivered singleton babies vaginally in 2011 at a medical center in Tokyo. We determined the amount of blood loss after delivery and covariates of age, parity, pre pregnancy body mass index (BMI), gestational weight gain (GWG), gestational week, pregnancy complications, lifestyles of smoking and drinking, placental weight, and infant weight and sex. Results: The majority of participants had lost less than 500 ml of blood (n=868, 67%), 21% lost between 500–799 ml of blood (n=273), 12% lost 800 ml or more of blood (n=153). The amount of blood loss statistically increased (p<0.001) as pre pregnancy BMI category level increased from underweight (<18.5 kg/m2), normal (18.5–22.9 kg/m2), to overweight/obesity (≥23 kg/m2). Compared with the least category of GWG <8.2 kg, ≥8.2 kg GWG was statistically associated with a larger amount of blood loss category (p=0.032). Multinomial logistic regression analyses demonstrated that with the reference pre pregnancy BMI 18.5–22.9 kg/m2, obese and obesity mothers with pre pregnancy BMI ≥23 kg/m2 were at an increased risk of blood loss [OR 2.28, 95%confidence interval (95%CI): 1.48–3.50 for the category of 500–799 ml and OR 2.15, 95%CI: 1.29–3.59 for a category of 800 ml≤)]. In addition, pregnancy induced hypertension (PIH) (p=0.010) and infant weight (p<0.0001) significantly increased the risk of blood loss. Conclusions: In mothers with full-term singleton babies, increased pre pregnancy BMI overweight/obesity, PIH, and infant weight, were suggested to be risk factors for increased amount of blood loss.</description><subject>Adult</subject><subject>Birth Weight</subject><subject>blood loss after delivery</subject><subject>Body Mass Index</subject><subject>Causality</subject><subject>Cohort Studies</subject><subject>Female</subject><subject>full-term singleton baby</subject><subject>Humans</subject><subject>Hypertension, Pregnancy-Induced</subject><subject>Life Style</subject><subject>Male</subject><subject>Overweight</subject><subject>Postpartum Hemorrhage - epidemiology</subject><subject>Postpartum Hemorrhage - etiology</subject><subject>predisposing factors</subject><subject>Pregnancy</subject><subject>Pregnancy Complications - epidemiology</subject><subject>retrospective cohort study</subject><subject>Retrospective Studies</subject><subject>Risk Factors</subject><subject>Weight Gain</subject><issn>0021-5082</issn><issn>1882-6482</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kE1PAjEQhhujEYJc_AGmRw8utt2PloMHQFETjAfxvHbbWSgpW2yLhn_vKshlJnnzzJvMg9AlJQPKivx2tVoOOB0wIk5QlwrBkiIT7BR1CWE0yYlgHdQPwVSEkGE-FKk4Rx3GOcszlnXRx1Sq6HzAoxCcMjKCxt8mLvHYOqfxzIWAZR3B43uw5gv8DpsG0xs2zPCLi0toT__46dbaZA5-jd9Ms7AQXYPHstpdoLNa2gD9w-6h9-nDfPKUzF4fnyejWbKigsREM50yyiqmRaUJzSsi6jbiTNccikKlgnMOVOoqax8RtKaq4kKTLFd5oXSW9tD1vnfj3ecWQizXJiiwVjbgtqGkIs3TIWsbW_TqgG6rNehy481a-l35b6UF7vbAKkS5gCMgfTTKQtk6Lzkt09_Rij_mail9CU36A_6zeTc</recordid><startdate>2016</startdate><enddate>2016</enddate><creator>HORIE, Saki</creator><creator>NOMURA, Kyoko</creator><creator>NAKAGAWA, Junko</creator><creator>KIDO, Michiko</creator><creator>SUGIMOTO, Mitsuhiro</creator><general>The Japanese Society for Hygiene</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>2016</creationdate><title>Factors Associated with Blood Loss after Delivery in 1,294 Mothers with Full-Term Singleton Baby</title><author>HORIE, Saki ; NOMURA, Kyoko ; NAKAGAWA, Junko ; KIDO, Michiko ; SUGIMOTO, Mitsuhiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j180t-d2d3212b2d8bd015b08f2d372df7e66c38777e1adb400081f1cb78d045c56cd43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>jpn</language><creationdate>2016</creationdate><topic>Adult</topic><topic>Birth Weight</topic><topic>blood loss after delivery</topic><topic>Body Mass Index</topic><topic>Causality</topic><topic>Cohort Studies</topic><topic>Female</topic><topic>full-term singleton baby</topic><topic>Humans</topic><topic>Hypertension, Pregnancy-Induced</topic><topic>Life Style</topic><topic>Male</topic><topic>Overweight</topic><topic>Postpartum Hemorrhage - epidemiology</topic><topic>Postpartum Hemorrhage - etiology</topic><topic>predisposing factors</topic><topic>Pregnancy</topic><topic>Pregnancy Complications - epidemiology</topic><topic>retrospective cohort study</topic><topic>Retrospective Studies</topic><topic>Risk Factors</topic><topic>Weight Gain</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HORIE, Saki</creatorcontrib><creatorcontrib>NOMURA, Kyoko</creatorcontrib><creatorcontrib>NAKAGAWA, Junko</creatorcontrib><creatorcontrib>KIDO, Michiko</creatorcontrib><creatorcontrib>SUGIMOTO, Mitsuhiro</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HORIE, Saki</au><au>NOMURA, Kyoko</au><au>NAKAGAWA, Junko</au><au>KIDO, Michiko</au><au>SUGIMOTO, Mitsuhiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Factors Associated with Blood Loss after Delivery in 1,294 Mothers with Full-Term Singleton Baby</atitle><jtitle>Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)</jtitle><addtitle>Jpn. J. Hyg.</addtitle><date>2016</date><risdate>2016</risdate><volume>71</volume><issue>3</issue><spage>208</spage><epage>215</epage><pages>208-215</pages><issn>0021-5082</issn><eissn>1882-6482</eissn><abstract>Objectives: To clarify the predisposing factors associated with blood loss after delivery in mothers with full-term singleton babies. Methods: In this retrospective cohort study, we investigated 1,294 women who delivered singleton babies vaginally in 2011 at a medical center in Tokyo. We determined the amount of blood loss after delivery and covariates of age, parity, pre pregnancy body mass index (BMI), gestational weight gain (GWG), gestational week, pregnancy complications, lifestyles of smoking and drinking, placental weight, and infant weight and sex. Results: The majority of participants had lost less than 500 ml of blood (n=868, 67%), 21% lost between 500–799 ml of blood (n=273), 12% lost 800 ml or more of blood (n=153). The amount of blood loss statistically increased (p<0.001) as pre pregnancy BMI category level increased from underweight (<18.5 kg/m2), normal (18.5–22.9 kg/m2), to overweight/obesity (≥23 kg/m2). Compared with the least category of GWG <8.2 kg, ≥8.2 kg GWG was statistically associated with a larger amount of blood loss category (p=0.032). Multinomial logistic regression analyses demonstrated that with the reference pre pregnancy BMI 18.5–22.9 kg/m2, obese and obesity mothers with pre pregnancy BMI ≥23 kg/m2 were at an increased risk of blood loss [OR 2.28, 95%confidence interval (95%CI): 1.48–3.50 for the category of 500–799 ml and OR 2.15, 95%CI: 1.29–3.59 for a category of 800 ml≤)]. In addition, pregnancy induced hypertension (PIH) (p=0.010) and infant weight (p<0.0001) significantly increased the risk of blood loss. Conclusions: In mothers with full-term singleton babies, increased pre pregnancy BMI overweight/obesity, PIH, and infant weight, were suggested to be risk factors for increased amount of blood loss.</abstract><cop>Japan</cop><pub>The Japanese Society for Hygiene</pub><pmid>27725424</pmid><doi>10.1265/jjh.71.208</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Birth Weight blood loss after delivery Body Mass Index Causality Cohort Studies Female full-term singleton baby Humans Hypertension, Pregnancy-Induced Life Style Male Overweight Postpartum Hemorrhage - epidemiology Postpartum Hemorrhage - etiology predisposing factors Pregnancy Pregnancy Complications - epidemiology retrospective cohort study Retrospective Studies Risk Factors Weight Gain |
| title | Factors Associated with Blood Loss after Delivery in 1,294 Mothers with Full-Term Singleton Baby |
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