Socioecological Challenges of Polio Supplementary Immunization Activities (SIAs) in the Asia-Pacific Region: A Systematic Review

Table 2

Description of articles based on outcome measure.

Category	Subcategory	No. of studies	Article number
Vaccination coverage		6	[1][3][4][5][6][8]
Barrier or challenges in supplementary immunization activities (SIAs)	Intrapersonal	1	[5]
	Interpersonal	1	[5] [7]
	Institutional	2	[2][3]
	Community	N/A	—
	Policy	1	[8]
Intervention strategy to supplementary immunization activities (SIAs)	Intrapersonal	N/A	—
	Interpersonal	N/A	—
	Institutional	2	[3][9]
	Community	4	[1][4][6][8]
	Policy	1	[8]

The manuscripts (from 1 to 9 manuscripts) were numbered with the same numbering with which they are cited in Table 1.