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Open Access Research article

How mistimed and unwanted pregnancies affect timing of antenatal care initiation in three districts in Tanzania

Amon Exavery1*, Almamy Malick Kanté12, Ahmed Hingora1, Godfrey Mbaruku1, Senga Pemba3 and James F Phillips2

Author Affiliations

1 Ifakara Health Institute (IHI), Plot 463, Kiko Avenue, off Old Bagamoyo Road, Mikocheni, P.O. Box 78373, Dar es Salaam, Tanzania

2 Heilbrunn Department of Population and Family Health, Mailman School of Public Health, Columbia University, New York, USA

3 Tanzanian Training Centre for International Health (TTCIH), Ifakara, Tanzania

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BMC Pregnancy and Childbirth 2013, 13:35  doi:10.1186/1471-2393-13-35

Published: 6 February 2013

Abstract

Background

Early antenatal care (ANC) initiation is a doorway to early detection and management of potential complications associated with pregnancy. Although the literature reports various factors associated with ANC initiation such as parity and age, pregnancy intentions is yet to be recognized as a possible predictor of timing of ANC initiation.

Methods

Data originate from a cross-sectional household survey on health behaviour and service utilization patterns. The survey was conducted in 2011 in Rufiji, Kilombero and Ulanga districts in Tanzania on 3,127 women from whom 910 of reproductive age who had given birth in the past two years and sought ANC at least once during pregnancy were selected for the current analysis. ANC initiation was considered to be early only if it occurred in the first trimester of pregnancy gestation. A recently completed pregnancy was defined as mistimed if a woman wanted it later, and if she did not want it at all the pregnancy was termed as unwanted. Chi-square was used to test for associations and multinomial logistic regression was conducted to examine how mistimed and unwanted pregnancies relate with timing of ANC initiation.

Results

Although 49.3% of the women intended to become pregnant, 50.7% (34.9% mistimed and 15.8% unwanted) became pregnant unintentionally. While ANC initiation in the 1st trimester was 18.5%, so was 71.7% and 9.9% in the 2nd and 3rd trimesters respectively. Multivariate analysis revealed that ANC initiation in the 2nd trimester was 1.68 (95% CI 1.10–2.58) and 2.00 (95% CI 1.05–3.82) times more likely for mistimed and unwanted pregnancies respectively compared to intended pregnancies. These estimates rose to 2.81 (95% CI 1.41–5.59) and 4.10 (95% CI 1.68–10.00) respectively in the 3rd trimester. We controlled for gravidity, age, education, household wealth, marital status, religion, district of residence and travel time to a health facility.

Conclusion

Late ANC initiation is a significant maternal and child health consequence of mistimed and unwanted pregnancies in Tanzania. Women should be empowered to delay or avoid pregnancies whenever they need to do so. Appropriate counseling to women, especially those who happen to conceive unintentionally is needed to minimize the possibility of delaying ANC initiation.

Keywords:
Mistimed pregnancy; Unwanted pregnancy; Timing; ANC initiation; Tanzania