Effects of Maternal Age and Age-Specific Preterm Birth Rates on Overall Preterm Birth Rates — United States, 2007 and 2014

Ferré, Cynthia; Callaghan, William M.; Olson, Christine K.; Sharma, Andrea J.; Barfield, Wanda D.

doi:10.15585/mmwr.mm6543a1

Cited by 110 publications

(70 citation statements)

References 5 publications

(8 reference statements)

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“…This finding is consistent with several previous studies. 42,43 A prospective study of 22 188 mothers from low-income and middle-income countries found that mothers in younger (≤19 years) age and in older (≥35 years) age had significantly higher odds of having births with LBW and PTB. 42 Another analysis that based on the US National Vital Statistics System data for all live births in 2007 and 2014 also found that mothers in younger (<25 years) age and in older (≥35 years) age had significantly higher odds of having births with PTB, compared to 25-to 29-year-old mothers.…”

Section: Discussionmentioning

confidence: 99%

“…42 Another analysis that based on the US National Vital Statistics System data for all live births in 2007 and 2014 also found that mothers in younger (<25 years) age and in older (≥35 years) age had significantly higher odds of having births with PTB, compared to 25-to 29-year-old mothers. 43 The mechanisms for associations of household renovation with LBW and PTB among women with pregnancy age different could be different for younger and older women. 44 Younger (<25 years) mothers could have lower socioeconomic status and use lower quality building materials for household renovation and thus have greater pollutant exposure.…”

Section: Discussionmentioning

confidence: 99%

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Household renovation before and during pregnancy in relation to preterm birth and low birthweight in China

Huang

Zhao

et al. 2019

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From October 2010 to April 2012, we conducted a cross‐sectional study of associations between household environments and childhood health among preschool children in eight Chinese cities. Here, we analyze associations of early household renovation with preterm birth (PTB), low birthweight (LBW), term low birthweight (Term‐LBW), and small for gestational age (SGA). Parents responded to questions about household renovation and their children's gestational age and birthweight. In the multivariate logistic regression analyses, household renovation in the year before pregnancy was significantly associated with LBW (sample size: N = 25 813; adjusted odds ratio (OR) with 95% confidence intervals (CIs): 1.23, 1.01‐1.50) and Term‐LBW (N = 24 823; 1.29, 1.01‐1.67). Household renovation during pregnancy was significantly associated with PTB (N = 25 202; 1.28, 1.01‐1.69). These significant associations were also found in the two‐level (city‐child) logistic regression analyses and in the sensitivity analyses among 21 009 children with complete data in all studied variates. Stronger associations were found in certain subgroups. Our findings indicate that household renovation within one year before pregnancy might be a risk factor for LBW and Term‐LBW, while household renovation during pregnancy could be a risk factor for PTB.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Household renovation before and during pregnancy in relation to preterm birth and low birthweight in China

Huang

Zhao

et al. 2019

Indoor Air

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“…A multi-institutional outcomes analysis of patients with relapsed or refractory DLBCL treated with ibrutinib Nishitha Reddy, 5 Stephen Smith, 6 Mazyar Shadman, 6 Mitchell R. Smith, 7 Paolo Caimi, 8 Deepa Jagadeesh, 1 …”

Section: To the Editormentioning

confidence: 99%

“…[7][8][9] Those with DC had normal fertility, increased miscarriages, premature infants, and C-sections, as well as decreased hematopoiesis, although less common than in FA. One woman with DC had scarred fallopian tubes but did become pregnant after several attempts, whereas 1 with DBA and scarred fallopian tubes did not become pregnant.…”

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confidence: 99%

“…Because GEP is not available in routine clinical practice, immunohistochemistry (IHC) algorithms are often used to determine COO subtype, the most common of which was established by Hans et al 8 IHC differentiates GCB from non-GCB; the latter includes both ABC and unclassifiable DLBCL. Unfortunately, the correlation between GEP and IHC subtyping is imperfect, so despite the biologic rationale for selective cytotoxicity of ibrutinib for ABC-DLBCL, it is not clear that such preferential activity will be observed when COO is based on IHC.…”

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confidence: 99%

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Pregnancies in patients with inherited bone marrow failure syndromes in the NCI cohort

Giri

Stratton

Savage

et al. 2017

Blood

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Association Between Preterm Birth and Arrested Cardiac Growth in Adolescents and Young Adults

et al. 2020

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IMPORTANCE Premature birth is associated with substantially higher lifetime risk for cardiovascular disease, including arrhythmia, ischemic disease, and heart failure, although the underlying mechanisms are poorly understood.OBJECTIVE To characterize cardiac structure and function in adolescents and young adults born preterm using cardiac magnetic resonance imaging (MRI). DESIGN, SETTING, AND PARTICIPANTSThis cross-sectional cohort study at an academic medical center included adolescents and young adults born moderately to extremely premature (20 in the adolescent cohort born from 2003 to 2004 and 38 in the young adult cohort born in the 1980s and 1990s) and 52 age-matched participants who were born at term and underwent cardiac MRI. The dates of analysis were February 2016 to October 2019.EXPOSURES Premature birth (gestational age Յ32 weeks) or birth weight less than 1500 g. MAIN OUTCOMES AND MEASURESMain study outcomes included MRI measures of biventricular volume, mass, and strain. RESULTSOf 40 adolescents (24 [60%] girls), the mean (SD) age of participants in the term and preterm groups was 13.3 (0.7) years and 13.0 (0.7) years, respectively. Of 70 adults (43 [61%] women), the mean (SD) age of participants in the term and preterm groups was 25.4 (2.9) years and 26.5 (3.5) years, respectively. Participants from both age cohorts who were born prematurely had statistically significantly smaller biventricular cardiac chamber size compared with participants in the term group: the mean (SD) left ventricular end-diastolic volume index was 72 (7) vs 80 (9) and 80 (10) vs 92 (15) mL/m 2 for adolescents and adults in the preterm group compared with age-matched participants in the term group, respectively (P < .001), and the mean (SD) left ventricular end-systolic volume index was 30 (4) vs 34 (6) and 32 (7) vs 38 (8) mL/m 2 , respectively (P < .001). Stroke volume index was also reduced in adolescent vs adult participants in the preterm group vs age-matched participants in the term group, with a mean (SD) of 42 (7) vs 46 (7) and 48 (7) vs 54 (9) mL/m 2 , respectively (P < .001), although biventricular ejection fractions were preserved. Biventricular mass was statistically significantly lower in adolescents and adults born preterm: the mean (SD) left ventricular mass index was 39.6 (5.9) vs 44.4 (7.5) and 40.7 (7.3) vs 49.8 (14.0), respectively (P < .001). Cardiac strain analyses demonstrated a hypercontractile heart, primarily in the right ventricle, in adults born prematurely. CONCLUSIONS AND RELEVANCEIn this cross-sectional study, adolescents and young adults born prematurely had statistically significantly smaller biventricular cardiac chamber size and decreased cardiac mass. Although function was preserved in both age groups, these morphologic differences may be associated with elevated lifetime cardiovascular disease risk after premature birth.

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Effects of Maternal Age and Age-Specific Preterm Birth Rates on Overall Preterm Birth Rates — United States, 2007 and 2014

Cited by 110 publications

References 5 publications

Household renovation before and during pregnancy in relation to preterm birth and low birthweight in China

Household renovation before and during pregnancy in relation to preterm birth and low birthweight in China

Pregnancies in patients with inherited bone marrow failure syndromes in the NCI cohort

Association Between Preterm Birth and Arrested Cardiac Growth in Adolescents and Young Adults

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