Effect of interpregnancy interval on preterm birth risk after 14 to 34 week delivery

Background: The pregnancy outcomes are influenced by the inter pregnancy intervals. Both short and long inter pregnancy intervals are known to adversely affect the mother and the baby. The main aim of birth spacing was to achieve ideal inter pregnancy intervals and thus to decrease maternal, neonatal morbidity and mortality.Methods: It is a prospective observational study. In this study, about 500 gravida 2 women who has delivered vaginally in the index pregnancy, with gestational age more than 28 weeks of gestation and with known interpregnancy interval were included in the study. They followed up to to delivery and occurance of preterm births in relation to maternal characteristics and interpregnancy interval were analysed.Results: Our study showed that Inter pregnancy intervals of 18-24 months were found to have the least number of preterm births when compared to intervals <18 months and >24 months. This association was found to be statistically significant (p value, Pearson chi square 0.0008). This relationship between inter pregnancy intervals and preterm births persisted when stratified according to maternal age, education, residence and BMI.A previous preterm birth was associated with increased risk of recurrent preterm birth (p value -0.034) and was statistically significant. The history of PROM in present pregnancy associated with preterm birth (p value -0.001) and association was statistically significant.Conclusions: From this study it was found that the 18-24 months birth to pregnancy interval is associated with the least incidence of preterm births.

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Associations between interpregnancy interval and preterm birth by previous preterm birth status in four high‐income countries: a cohort study

BJOG An International Journal of Obstetrics & Gynaecology ◽

10.1111/1471-0528.16606 ◽

2020 ◽

Author(s):

ML Marinovich ◽

AK Regan ◽

M Gissler ◽

MC Magnus ◽

SE Håberg ◽

...

Keyword(s):

Cohort Study ◽

Preterm Birth ◽

High Income ◽

Interpregnancy Interval

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Comparison of risk and protective factors for preterm birth in rural, suburban, and urban Fresno County, California

Journal of Epidemiological Research ◽

10.5430/jer.v4n2p50 ◽

2018 ◽

Vol 4 (2) ◽

pp. 50 ◽

Cited By ~ 1

Author(s):

Rebecca J. Baer ◽

Lauren Lessard ◽

Marta Jankowska ◽

James G. Anderson ◽

Jessica Block ◽

...

Keyword(s):

Risk Factors ◽

Preterm Birth ◽

Protective Factors ◽

Risk And Protective Factors ◽

Adjusted Relative Risk ◽

Interpregnancy Interval ◽

Fresno County ◽

Maternal Risk ◽

Increased Risk ◽

Local Risk

Preterm birth (PTB, < 37 weeks’ gestation) may impose lifelong sequelae or death. Fresno County reports the highest rate of PTB in California. A place-based approach investigating local risk factors for PTB may provide important opportunities for intervention and prevention. In this study, we examine risk and protective factors for PTB in rural, suburban, and urban Fresno County, California. The sample was drawn from Fresno County, California singleton births 2007-2012 (n = 81,021). Multivariate models of maternal risk and protective factors for PTB were stratified by rural, suburban, and urban residence. Women with diabetes, hypertension, infection, fewer than three prenatal care visits, previous PTB, interpregnancy interval less than six months, or were of Black race/ethnicity were at increased risk of PTB. The risk of PTB was highest for women residing in rural locations with preeclampsia superimposed on preexisting hypertension (adjusted relative risk (aRR) 5.7, 95% confidence interval (CI) 4.4-7.4). For women living in urban residences, maternal birth in Mexico and overweight body mass index (BMI) offered protection from PTB (aRRs 0.9), whereas participation in the Women, Infants and Children program was protective for women in either urban or rural residences (aRRs 0.8). Public insurance, <12 year of education, underweight BMI, and interpregnancy interval of five years or more were risk factors only for women in urban residences. These findings may provide important opportunities for local intervention.

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INTERPREGNANCY INTERVAL EFFECT ON PRETERM BIRTH

10.36106/ijsr/8304824 ◽

2021 ◽

pp. 68-69

Author(s):

Punit Hans ◽

Anjana Sinha

Keyword(s):

Preterm Birth ◽

Health Centre ◽

Preterm Births ◽

Interpregnancy Interval ◽

Demographic Information ◽

Labor Management ◽

Maternal Complications ◽

Maternal Characteristics ◽

Interval Effect ◽

Younger Age

Identication of modiable and non-modiable risk factors for preterm birth before conception or early in pregnancy may help prevent this complication. Aretrospective analysis of interpregnancy interval in women giving preterm birth in a tertiary health centre was done . All records of obstetric patients, from institutional data centre were examined in detail which included demographic information, reproductive history, maternal characteristics, prenatal care, labor management, maternal complications during pregnancy, delivery, and the puerperium, and neonatal outcomes. In this study , among 112 patients 30 percent were having interpregnancy interval of less than 12 months, 50 percent 12 to < 24 months, 11 percent 24 to 48 months and 9 percent > 48 months. Higher occurrence of short interpregnancy interval <24 months and younger age group <19 years were found in association with preterm births.

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