Sex of the respondent
1 = Male
2 = Female

Residence of respondent
1 = Urban
2 = Rural

Relationship to pregnant women
1 = Mother
2 = Father
3 = Wife
4 = Husband
5 = Brother
6 = Sister
7 = Son
8 = daughter
9 = Others_________

Marital status of respondent
1 = Single
2 = Married
3 = Divorced
4 = Widowed
5 = Separated

Religion of the respondent
1 = Orthodox
2 = Muslim
3 = Protestant
4 = Catholic
5 = I have no religion
6 = Others_________

Educational status of respondent
1 = Unable to read and write
2 = Primary and secondary education
3 = Certificate
4 = Diploma
5 = Degree and above

Occupation status of respondent
1 = Civil servant
2 = Self-employers
3 = Merchant
4 = Farmer
5 = Housewife
6 = Sex worker
7 = Student
8 = Military
9 = Other________

Ethnicity of respondent
1 = Hadiya
2 = Kembata
3 = Gurage
4 = Silte
5 = Halaba
6 = Yem
7 = Oromo
8 = Wolaita
10 = Tigre
11 = Others_______

Information about HBV
1 = Yes
2 = No

Duration of stay with index case
1 = Greater than 6 months
2 = Less than 6 months

Vaccination status
1 = Unvaccinated
2 = Dose 1
3 = Dose 2
4 = Dose 3

Sexual contact relationship to pregnant women
1 = Wife
2 = Husband
3 = Partner
4 = Other_______

Hepatitis B surface antigen
0 = Negative
1 = Posative

Donation type of respondent
1 = Voluntary
2 = Replacement

Frequency of donation
1 = First time
2 = Repeated

Age in compelete years
1 = Lower age(18-28)
2 = Middle Age(29-39)
3 = Higher Age( greater than or equal to 40)

Martial status final
1 = Single
2 = Married
3 = Ever Married

Occupation Final
1 = Employed
2 = Self-employed
3 = Unemployed

Famsize Final
1 = Small Family Size(1-3)
2 = Medium Family Size(4-6)
3 = Large Family Size(greater than or equal to 7)

Average monthly income
1 = Lower Income( less or equal to 2000ETB )
2 = Medium Income(2001-4000)
3 = Higher Income(greater than 4001)

Number of contacts per case final
1 = 1-3 times
2 = 4-6 times
3 = Greater or equal to 7 times

Relationship of close contacts with the index case final
1 = parent
2 = husband
3 = brother
4 = sister
5 = others

Sexual contact Final
1 = Husband
2 = Partner

1 = Unvaccinated
2 = Vaccinated only for dose one