| Before having smartphone | After having smartphone |
II. About your lifestyle and physical condition | ||
(4) How is your appetite? | 1. Very good 2. Good 3. Average 4. Poor | 1. Very good 2. Good 3. Average 4. Poor |
(5) How has your weight changed since having your smartphone? |
| 1. Increased by >10 kg per year or >3 kg per month. 2. Decreased by >10 kg per year or >3 kg per month 3. Changes (not applicable to 1 or 2) 4. No change |
(6) Do you have constipation? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(7) Do you feel eyestrain? | 1. Severe 2. To some extent 3. A little 4. None | 1. Severe 2. To some extent 3. A little 4. None |
(8) Did your eyesight become worse after having your smartphone? |
| 1. Severe 2. To some extent 3. A little 4. None |
(9) Does the smartphone use cause the symptoms on the right? (Multiple answers allowed) |
| 1. Dizzy 2. Tinnitus 3. Nausea 4. Headache 5. Dry eyes |