Table 2.
Variables, measurement method, and data collection times
| Variables | Measurement method | Data collection timea | |||
|---|---|---|---|---|---|
| Main variables | |||||
| Knowledge and understanding of the procedure | 12-point specific multiple-response questionnaire for each procedure (see Appendix 3) | 1st | 2nd | 3rd | |
| Satisfaction with the method of communicating information | 10-point VASb | 1st | 2nd | 3rd | |
| Satisfaction with information transmitted | 10-point Visual Analog Scaleb | 1st | 2nd | 3rd | |
| Anxiety related to the procedure | STAI questionnaire and 10-point VASb | 1st | 2nd | 3rd | |
| Other variables | |||||
| Demographic variables | Sex, age, marital status, and educational level | 1st | |||
| Personal history | Previous IR procedures, other types of interventions, history of anxiety and depression, and previous knowledge of IR | 1st | |||
| Procedure-specific variables | Preparation method, anesthesia type, sedation level (Ramsay Sedation Scale), and procedure duration | 4th | |||
| Pain intensity during the procedure | 10-point VASc | 4th | |||
| Intervention tolerance level | 10-point VASb | 4th | |||
| Satisfaction level with the intervention | 10-point VASb | 4th | |||
| Usefulness of explanatory videos | 10-point VASb and dichotomous questionsd | 2nd | |||
IR Interventional radiology, STAI State-Trait Anxiety Inventory, VAS Visual analog scale
a Data collection times: 1st (screening visit), 2nd (after the consultation with the radiologist, only for the experimental group), 3rd (on the day of the procedure, before it is performed), and 4th (on the day of the procedure, after it is performed)
b VAS, where 1 represents the minimum value and 10 the maximum value
c VAS for pain, where 0 indicates no pain, 1–3 mild pain, 4–6 moderate pain, 7–8 severe pain, and 9–10 excruciating pain
d The questions are: Did you find the video useful for better understanding the intervention? Did you like the video as an explanatory tool? Do you feel less anxiety after watching the video? Do you understand the intervention better after watching the video?