Background: Sulphadoxine pyrimethamine using intermittent preventive treatment (IPTp-SP) for malaria prevention is recommended for all pregnant women at malaria endemic areas. However, there is limited evidence on the level of socioeconomic inequality in IPTp-SP use to prevent malaria in pregnant women in Nigeria. Thus, this study aimed to determine the level of socioeconomic inequality in IPTp-SP use among pregnant women and to decompose it into its contributing factors.
Methods: A secondary data analysis of Nigerian demographic and health survey of 2018 was conducted. A sample of 21,621 pregnant women aged between 15-49 years and had live birth in the previous 2 years before the survey were included to this analysis. Participants were recruited based on two-stage cluster sampling method. Socioeconomic inequality was decomposed into its contributing factors by concentration index.
Result: Totally 63.6% of pregnant women took at least one dose of IPTp. Among IPTp users, 35.1% took one dose, 38.6% took two doses and 26.2% took three doses and more. Based on concentration index of 0.180 (p-value= <0.001, 95% CI: 0.176 to 0.183) and the Erreyger’s normalization concentration index 0.280 (p-value=<0.001, 95% CI: 0.251 to 0.309 IPTp utilization was pro-rich. The largest contributors to the inequality in IPTp uptake were wealth index (47.81%) and educational status (28.66%).
Conclusion: Our findings showed that IPTp use was pro-rich in Nigeria. Wealth index and educational status were the factors that significantly contributed to the inequality. The disparities could be reduced through IPTp free service expansion by targeting pregnant women from low socioeconomic status.

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On 12 Aug, 2020
On 11 Aug, 2020
Posted 04 Dec, 2020
On 24 Nov, 2020
On 23 Nov, 2020
On 08 Nov, 2020
Received 04 Nov, 2020
Received 03 Nov, 2020
Received 03 Nov, 2020
On 16 Oct, 2020
On 15 Oct, 2020
Invitations sent on 15 Oct, 2020
On 15 Oct, 2020
On 15 Oct, 2020
On 14 Oct, 2020
On 14 Oct, 2020
On 16 Sep, 2020
Received 15 Sep, 2020
Received 15 Sep, 2020
Received 13 Sep, 2020
On 26 Aug, 2020
Invitations sent on 25 Aug, 2020
On 25 Aug, 2020
On 25 Aug, 2020
On 25 Aug, 2020
On 13 Aug, 2020
On 12 Aug, 2020
On 12 Aug, 2020
On 11 Aug, 2020
Background: Sulphadoxine pyrimethamine using intermittent preventive treatment (IPTp-SP) for malaria prevention is recommended for all pregnant women at malaria endemic areas. However, there is limited evidence on the level of socioeconomic inequality in IPTp-SP use to prevent malaria in pregnant women in Nigeria. Thus, this study aimed to determine the level of socioeconomic inequality in IPTp-SP use among pregnant women and to decompose it into its contributing factors.
Methods: A secondary data analysis of Nigerian demographic and health survey of 2018 was conducted. A sample of 21,621 pregnant women aged between 15-49 years and had live birth in the previous 2 years before the survey were included to this analysis. Participants were recruited based on two-stage cluster sampling method. Socioeconomic inequality was decomposed into its contributing factors by concentration index.
Result: Totally 63.6% of pregnant women took at least one dose of IPTp. Among IPTp users, 35.1% took one dose, 38.6% took two doses and 26.2% took three doses and more. Based on concentration index of 0.180 (p-value= <0.001, 95% CI: 0.176 to 0.183) and the Erreyger’s normalization concentration index 0.280 (p-value=<0.001, 95% CI: 0.251 to 0.309 IPTp utilization was pro-rich. The largest contributors to the inequality in IPTp uptake were wealth index (47.81%) and educational status (28.66%).
Conclusion: Our findings showed that IPTp use was pro-rich in Nigeria. Wealth index and educational status were the factors that significantly contributed to the inequality. The disparities could be reduced through IPTp free service expansion by targeting pregnant women from low socioeconomic status.

Figure 1

Figure 2
This is a list of supplementary files associated with this preprint. Click to download.
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