Table 1 Description of variables and coding scheme.
Variable/ indicator | Type of variable | Category | Measurement explanation |
|---|---|---|---|
Dependent variable | |||
Asthma | Dich. | Yes = 1 / No = 0 | Self-reported history of physician-diagnosed asthma in any household member within the past year. |
Independent variable | |||
Geography | |||
Elevation | Category | 1 = Zone A, 2 = Zone B, 3 = Zone C, 4 = Zone D, 5 = Zone E, 6 = Zone F | Geocoding of each sample patient’s locations was carried out using a Garmin GPSMAP 64s device. |
Demography | |||
Ethnicity | Dich. | 1 = Gujjar, 2 = Bakarwals | Self-reported through survey responses. |
Gender | Dich. | Male = 1, Female = 2 | Self-reported through survey responses. |
Marital status | Category | Single = 1, Married = 2, Divorced = 3, Widowed = 4, | Self-reported through survey responses. |
Type of family | Category | Nuclear = 1, Joint = 2, Extended = 3 | Self-reported through survey responses. |
Age group | Category | 0–10 = 1, 11–20 = 2, 21–30 = 3, 31–40 = 4, 41–50 = 5, 51–60 = 6, >61 = 7 | Self-reporting and documented date of birth during field surveys to ensure accuracy and reliability of demographic data collection. |
Socioeconomy | |||
Educational level | Category | No formal education = 1, Primary = 2, Secondary = 3, Higher Secondary = 4, Graduate = 5, Post Graduate = 6 | Self-reporting by participants during field surveys and confirmation based on educational certificates. |
Occupation | Category | Not applicable (children) = 1 Unemployed = 2, Govt. employed = 3, Herdsman = 4, Labour/Daily Wager = 5, Farmer = 6, Housewife = 7, Self-employed (Trader/businessman) = 8, Student = 9, Retired Ex-Serviceman = 10 | Self-reported through survey responses. |
Monthly Income (Indian rupees) | Category | <₹5000 = 1, ₹5000 – ₹10,000 = 2, ₹10,000 – ₹15,000 3=₹15,000 – ₹20,000 = 4, >₹20,000 = 5 | Self-reported through survey responses. |
Environment | |||
Type of home | Category | Traditional house = 1, Modern House = 2, Both = 3, Nomadic house = 4 | Self-reported by respondents and observation. |
Heating system during winter | Category | Bhukhari (Wooden) = 1, Electric heater = 2 | Self-reported through survey responses. |
Kitchen location | Dichotomous | Inside the house = 1, Separate from the house = 2 | Self-reported by respondents and observation. |
Choices of cooking appliance | Dichotomous | ChulhaA = 1, Stove = 2, Both (Chulha + stove) = 3 | Self-reported through survey responses. |
Source of drinking water | Category | Water spring = 1, Water supply = 2, Surface water (pond/tank/lake) = 3, Hand Pump = 4 | Self-reported through survey responses. |
Purity of drinking water | Dich. | Yes = 1, No = 2 | Self-reported through survey responses. |
Behaviour | |||
SmokingB | Dich. | Yes = 1, No = 2 | Self-reported through survey responses. |
Tobacco | Dich. | Yes = 1, No = 2 | Self-reported through survey responses. |
