Table 2 Descriptions of independent variables included in the Stepwise Multiple Linear and Binary Logistic Regression Models (n = 384)
| Descriptions of variables | Specifications |
Types of variables | Level/Scale of variables | Mean value |
|---|---|---|---|---|
| Socio-economic variables | ||||
| Gender (X1) | Male (0), Female (1) | Dummy | 2 | – |
| Location of residence (X2) | Suburb (0), Core area (1) | Dummy | 2 | – |
| Age (X3) | Respondents’ age (years) | Continuous | – | 42.4 |
| Education (X4) | Primary School (1), Secondary School (2), Bachelor’s Degree (3), Master’s Degree and higher (4) | Categories | 4 | – |
| Occupation (X5) | Not permanently employed (0), Permanently employed (1) | Dummy | 2 | – |
| Household income (X6) | Less than 25,000 Baht (1), 25,000–50,000 Baht (2), 50,001–75,000 Baht (3), 75,001–100,000 Baht (4), Higher than 100,000 Baht (5) | Categories | 5 | – |
| Household size (X7) | Number of household members | Continuous | – | 3.9 |
| Children HHM (X8) | No (0), Yes (1) | Dummy | 2 | – |
| Elderly HHM (X9) | No (0), Yes (1) | Dummy | 2 | – |
| HHM with health problem (X10) | No (0), Yes (1) | Dummy | 2 | – |
| Vegetarian HHM (X11) | No (0), Yes (1) | Dummy | 2 | – |
| Access to information on organic vegetables (OV) | ||||
| Access to information on OV (X12) | Index of intensity | Continuous | 5 | 0.55 |
| Knowledge on characteristics of OV (X13) | Incorrect (0), Correct (1) | Dummy | 2 | – |
| Perception of the environmental and health benefits of OV | ||||
| Environmental benefits (X14) | Index of perception | Continuous | 5 | 0.72 |
| Health benefits (X15) | Index of perception | Continuous | 5 | 0.78 |
| Satisfaction with OV | ||||
| Quality (X16) | Index of satisfaction | Continuous | 5 | 0.77 |
| Labelling/certification (X17) | Index of satisfaction | Continuous | 5 | 0.75 |
| Access to market/stores (X18) | Index of satisfaction | Continuous | 5 | 0.55 |
| Variety (X19) | Index of satisfaction | Continuous | 5 | 0.56 |
| Price (X20) | Index of satisfaction | Continuous | 5 | 0.60 |
