Knowledge, Preference, and Willingness to Pay for Hepatitis B Vaccination Services among Woman of Reproductive Age in Vietnam

Table 1

Study settings and sample size.

Level	Settings	Total woman fitting	Sample size
		the research criteria
District (rural)	Phu Son Commune	220	207
	Thuy An Commune	200	200
District (urban)	Trung Tu Commune	465	200
	Phuong Lien Commune	410	200