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. 2025 Apr 8;25(1):404.
doi: 10.1186/s12884-025-07524-0.

Factors associated with unintended pregnancies in India among married women over the past one and half decade (2005-2021): a multivariable decomposition analysis

Sanjiv Singh  1 , Kaushalendra Kumar Singh  2
Affiliations

Factors associated with unintended pregnancies in India among married women over the past one and half decade (2005-2021): a multivariable decomposition analysis

Sanjiv Singh et al. BMC Pregnancy Childbirth. .

Abstract

Background: Along with other low- and middle-income countries unintended pregnancies are a matter of grave concern for India as well as world. Preventing unintended pregnancy can significantly reduce fertility as well as population health.

Methods: Our study used data from three recent rounds of national family health survey (NFHS) which were conducted in 2005-06 (NFHS-3), 2015-16 (NFHS-4) and 2019-21 (NFHS-5). In union, currently married and pregnant women who have given birth to at least one child in last five years were taken into consideration for study. Dependent variable was unintended pregnancy (current pregnancy) which included mistimed as well as unwanted pregnancy. Univariate, bivariate analysis with point-to-point change was done to know aboutdependent variable. To know about important covariate of change in unintended pregnancy logistic regression has been used followed by multivariable decomposition analysis.

Results: Over all three - survey rounds considered in our study; prevalence of unintended pregnancy declined from 31.76% (NFHS-3) to 15.87% (NFHS-5). Highest percentage decline of 23.02% from NFHS-3 (39.01%) to NFHS-5 (15.99%) in unintended pregnancy was in the women of Muslim religion. Women of rural area have 19% lower chance of unintended pregnancy with adjusted odds ratio 0.81. Odds of having current unintended pregnancy were about 8 times in women whose last birth was unwanted. Women with incorrect knowledge of ovulatory cycle have 20% higher chance of having unintended pregnancy. After analysis it was found that out of total change in unintended pregnancies was proximately 23% due to compositional change and about 77% change was due to behavioural change.

Conclusions: Over the time prevalence of unintended pregnancies declining which can be helpful for better health to both child and women. Important factors leading to a decline in unintended pregnancy were young age groups, high education level, unwanted last birth, no and negative fertility gap, no intention to contraceptive use and incorrect knowledge of the ovulatory cycle. Most of decline in unintended pregnancies was due to behavioural change of women considered in our study.

Keywords: Logistic regression; Multivariate decomposition analysis; NFHS; Unintended pregnancy.

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Conflict of interest statement

Declarations. Ethical approval and consent to participate: Since our study was based on the secondary data which is freely available upon request in public domain so no ethical consideration was needed. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Conceptual framework
Fig. 2
Fig. 2
Respondent selection in each survey round
See this image and copyright information in PMC

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