Sex of respondents
1 = Female
2 = Male

Age of respondents
1 = 18 to 34
2 = 35-54
3 = above 55

Religion of respondents
1 = Orthodox
2 = Mosleum

Ethnicity of respondents
1 = Tigrian
2 = other

Marital status of respondents
1 = Married
2 = unmarried
3 = Divorced
4 = Widowed

Education of respondents
1 = Iliterate
2 = Primary school
3 = Secondary school and above

Income of the respondents
1 = less than 1000
2 = 1000-4000
3 = greater than 4000

Employment status of the respondents
1 = unemployed
2 = employed
3 = farmer
4 = house wife
5 = Civil servants

Residence of respondents
1 = Urban
2 = Rural

Asthma Status of respondents
0 = No
1 = Yes

Respondent reported Asthma control level
0 = non asthmatic
1 = well controlled
2 = less controlled
3 = uncontrolled

Asthma during Mentrual cycle of female respondents
0 = male excluded
1 = gets better
2 = gets worse
3 = No change

Asthma during pregnancy
0 = male excluded
1 = Better
2 = Worse
3 = No change

History of Nasal allergies of the respondents
1 = yes
2 = no

History of exposure to freezing weather of the respondents
1 = Yes
2 = No

History of severe respiratory infection during early childhood
1 = yes
2 = No

Job Type of the respondents
1 = Civil servants
2 = No Job
3 = farmer
4 = House wife

Road traffic distance proximity ( walking distance from your house in minutes)
1 = 2 minutes or less
2 = more than 2 minutes

Carpet year in mostly used Room
1 = less than one year
2 = 1-5 year
3 = greater than 5 year
9 = Not applicable

Physical exercise frquency in a week of the respondents
1 = Never
2 = About 1 hour
3 = About 2-3 hours
4 = four and above
9 = Not applicable

Packaged food usage
1 = Every day or most days
2 = Less than once a week

Body mass index (measurement) of respondents
0 = 18-24.99
1 = 25-29.99
2 = above 30