The relationship of interpregnancy interval to infant birthweight and length of gestation among low‐risk women, Georgia

Adams, Melissa M.; Delaney, Kate; Stupp, Paul; McCarthy, Brian J.; Rawlings, James S.

doi:10.1046/j.1365-3016.11.s1.8.x

Cited by 66 publications

(45 citation statements)

References 9 publications

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“…Although these differences might have introduced a bias in the observed associations, this would have been the case only if the association of first-born status with adult increased adiposity had been different between subjects who were followed up and those who were not. The median birth weight for gestational age of this sample was lower than that in the more recent African American reference population (38). This difference could be explained by secular trends or other differences between the 2 samples.…”

Section: Discussioncontrasting

confidence: 66%

See 1 more Smart Citation

Early risk factors for increased adiposity: a cohort study of African American subjects followed from birth to young adulthood

Stettler

Tershakovec

Zemel

et al. 2000

The American Journal of Clinical Nutrition

137

101

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Background:Obesity is an increasing concern in the United States. Effective prevention of obesity requires the risk factors to be well defined. African Americans have a high risk of obesity. Objective: The objective of this study was to identify risk factors, present at birth, for increased adiposity in adulthood in an African American population. Design: In this retrospective analysis of a prospective cohort study, anthropometric and socioeconomic variables were collected at birth. A representative sample of 447 African American subjects was followed up until young adulthood, when skinfold thickness was measured. Associations between the independent variables and increased adiposity (skinfold thickness above the 85th percentile) were explored by using unadjusted and adjusted analyses. Results: Three variables measured at birth were independently associated with adiposity in young adulthood, explaining 12% of the variance. The odds ratios (with 95% CIs) of these variables for increased adiposity were 2.7 (1.2, 6.2) for female sex, 4.0 (1.4, 11.2) for first-born status, and 1.15 (1.06, 1.25) for each unit increment in maternal prepregnancy body mass index (BMI; in kg/m 2 ). After adjustment for these variables, birth weight for gestational age and socioeconomic variables were not associated with adiposity. Conclusions: This cohort study of African American subjects was the first to identify first-born status as an independent risk factor for increased adiposity in adulthood in a US population. The results of the study strengthen previous reports of the effect of female sex and maternal BMI on adulthood obesity. Identification of risk factors early in life may help target prevention toward high-risk children and allow healthy lifestyles to be established before the onset of obesity.

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Section: Discussioncontrasting

confidence: 66%

“…Birth weight for gestational age was expressed as a z score based on a sex-and race-specific reference population (32,38).…”

Section: Discussionmentioning

confidence: 99%

Early risk factors for increased adiposity: a cohort study of African American subjects followed from birth to young adulthood

Stettler

Tershakovec

Zemel

et al. 2000

The American Journal of Clinical Nutrition

137

101

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“…In general, there were no significant differences in estimates of summary adjusted ORs between white and black women in subgroups that evaluated the effects of interpregnancy interval on adverse perinatal outcomes according to race/ethnicity. 39,40,52 For each month that interpregnancy interval was shortened from 18 months, the risk increase for preterm birth, LBW, and SGA was 1.9%, 3.3%, and 1.5%, respectively (TABLE 5). On the other hand, the risk for the 3 adverse perinatal outcomes increased by 0.6%, 0.9%, and 0.8%, respectively, for each month that interpregnancy interval was lengthened from 59 months.…”

Section: Birth Spacing and Risk Of Adverse Perinatal Outcomesmentioning

confidence: 99%

Birth Spacing and Risk of Adverse Perinatal Outcomes

Meta-Analysis¹,

Conde-Agudelo²

2006

JAMA

992

826

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“…Most studies have found that a short interpregnancy interval was associated with increased risk for various adverse birth outcomes [7][8][9][10][11][12][13]. However, a review of the literature revealed a number of methodological limitations in previously published literature.…”

Section: Introductionmentioning

confidence: 99%

Effect of interpregnancy interval on birth outcomes: findings from three recent US studies

Zhu

2004

Intl J Gynecology & Obste

147

107

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The relationship between interpregnancy interval and adverse birth outcomes (i.e., low birth weight, preterm birth, and small size for gestational age) was examined in three recent studies conducted in Utah and Michigan of the United States. These studies were conducted among different populations, used different study designs (i.e., cross-sectional and retrospective cohort designs), and addressed several other methodological limitations in the previously published literature. In addition, the data were stratified by, and controlled for, several maternal reproductive risk factors. A J-shaped relationship between interpregnancy interval and adverse birth outcomes was observed in all three studies. The risk for adverse birth outcomes is lowest when the interpregnancy interval was 18-23 months and increased when the interval departed from 18-23 months. This J-shaped relationship existed at levels of maternal reproductive risk factors and after these risk factors were controlled for using logistic regression. Based on the consistency of the findings from all three studies, it appears that the J-shaped relationship between interpregnancy interval and adverse birth outcomes is causal. This information can be used by health care providers and public health programs to counsel and educate women who recently gave births on reducing the risk for adverse birth outcomes by means of appropriate pregnancy spacing.

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The relationship of interpregnancy interval to infant birthweight and length of gestation among low‐risk women, Georgia

Cited by 66 publications

References 9 publications

Early risk factors for increased adiposity: a cohort study of African American subjects followed from birth to young adulthood

Early risk factors for increased adiposity: a cohort study of African American subjects followed from birth to young adulthood

Birth Spacing and Risk of Adverse Perinatal Outcomes

Effect of interpregnancy interval on birth outcomes: findings from three recent US studies

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