Background
Short Birth Interval (SBI) is a public health problem in most low- and lower-middle-income countries. Understanding geographic variations in SBI, particularly SBI hot spots and associated factors, may help intervene with tailored programs. This study identified the geographical hot spots of SBI in Bangladesh and the factors associated with them. `
Methods
We analyzed women’s data extracted from the 2017/18 Bangladesh Demographic and Health Survey and the healthcare facility data extracted from the 2017 Service Provision Assessment. Moran’s I was used to examine the spatial variation of SBI in Bangladesh whereas the Getis-Ord G*i (d) was used to determine the hot spots of SBI. The Geographical Weighted Regression (GWR) was used to explore the spatial variation of SBI on explanatory variables. The explanatory variables included in the GWR were selected using the exploratory regression and ordinary least square regression model.
Results
Data of 5941 women were included in the analyses. Around 26% of the total births in Bangladesh had occurred in short intervals. A majority of the SBI hot spots were found in the Sylhet division, and almost all SBI cold spots were in the Rajshahi and Khulna divisions. No engagement with formal income-generating activities, high maternal parity, and history of experiencing the death of a child were significantly associated with SBI in the Sylhet region. Women’s age of 34 years or less at the first birth was a protective factor of SBI in the Rajshahi and Khulna divisions.
Conclusion
The prevalence of SBI in Bangladesh is highly clustered in the Sylhet division. We recommend introducing tailored reproductive health care services in the hot spots instead of the existing uniform approach across the country.

Figure 1

Figure 2
No competing interests reported.
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Posted 11 Jun, 2021
On 24 Sep, 2021
Received 24 Sep, 2021
On 13 Sep, 2021
Received 06 Aug, 2021
On 20 Jul, 2021
On 09 Jul, 2021
Invitations sent on 30 Jun, 2021
On 30 Jun, 2021
On 09 Jun, 2021
On 08 Jun, 2021
On 06 Jun, 2021
Posted 11 Jun, 2021
On 24 Sep, 2021
Received 24 Sep, 2021
On 13 Sep, 2021
Received 06 Aug, 2021
On 20 Jul, 2021
On 09 Jul, 2021
Invitations sent on 30 Jun, 2021
On 30 Jun, 2021
On 09 Jun, 2021
On 08 Jun, 2021
On 06 Jun, 2021
Background
Short Birth Interval (SBI) is a public health problem in most low- and lower-middle-income countries. Understanding geographic variations in SBI, particularly SBI hot spots and associated factors, may help intervene with tailored programs. This study identified the geographical hot spots of SBI in Bangladesh and the factors associated with them. `
Methods
We analyzed women’s data extracted from the 2017/18 Bangladesh Demographic and Health Survey and the healthcare facility data extracted from the 2017 Service Provision Assessment. Moran’s I was used to examine the spatial variation of SBI in Bangladesh whereas the Getis-Ord G*i (d) was used to determine the hot spots of SBI. The Geographical Weighted Regression (GWR) was used to explore the spatial variation of SBI on explanatory variables. The explanatory variables included in the GWR were selected using the exploratory regression and ordinary least square regression model.
Results
Data of 5941 women were included in the analyses. Around 26% of the total births in Bangladesh had occurred in short intervals. A majority of the SBI hot spots were found in the Sylhet division, and almost all SBI cold spots were in the Rajshahi and Khulna divisions. No engagement with formal income-generating activities, high maternal parity, and history of experiencing the death of a child were significantly associated with SBI in the Sylhet region. Women’s age of 34 years or less at the first birth was a protective factor of SBI in the Rajshahi and Khulna divisions.
Conclusion
The prevalence of SBI in Bangladesh is highly clustered in the Sylhet division. We recommend introducing tailored reproductive health care services in the hot spots instead of the existing uniform approach across the country.

Figure 1

Figure 2
No competing interests reported.
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