| Factors | Rating | Mean | ||
| Not important | Important | Very important | ||
| Price of food | 26 (13.8) | 116 (61.7) | 46 (24.5) | 1.63 |
| Convenience as a factor | 23 (12.2) | 123 (65.4) | 42 (22.3) | 1.56 |
| Cleanliness of the surrounding | 74 (39.4) | 10 (5.3) | 104 (55.3) | 2.16 |
| Cleanliness of the vendor | 75 (39.9) | 30 (16.0) | 83 (44.1) | 2.04 |
| Taste of the food | 58 (30.9) | 45 (23.9) | 85 (45.2) | 2.14 |
| Appearance of vendor | 64 (34.0) | 41 (21.8) | 83 (44.1) | 2.10 |
| Aroma of the food | 32 (17.0) | 61 (32.4) | 95 (50.5) | 2.33 |
| Food additive content | 50 (26.6) | 106 (56.4) | 32 (17.0) | 1.60 |