Table 2.
Measurements used in the study at the different assessment times
| Measurement | Screening | T0 | T1 | T2 | T3 | Daily | Objective |
|---|---|---|---|---|---|---|---|
| Pregnant, Resp., Card., mental disease | X | – | – | – | – | – | – |
| Demographics | – | – | X | – | – | – | – |
| Distal outcomes | |||||||
| PHQ-9 | X | X | X | X | X | – | 2,3 |
| GAD-7 | X | X | X | X | X | – | 2,3 |
| TICS | – | X | X | X | X | – | 2,3 |
| Proximal outcomes | |||||||
| MDMQ1 | – | – | – | – | – | X | 1,3 |
| Audio features | |||||||
| Voice commands | – | – | X2 | X2 | X2 | X2 | 1,2 |
| Breathing sounds | – | – | X2 | X2 | X2 | X2 | 1,2 |
| Conversational agent | |||||||
| Reaction time to chatbot messages | – | X | X | X | X | X | 1,2 |
| Therapeutic alliance | – | – | – | – | X | – | 3 |
| Qualitative feedback | |||||||
| Willingness continue using BEDDA | – | – | – | – | X | – | 3 |
| Willingness pay for BEDDA | – | – | – | – | X | – | 3 |
| Improvements suggestions | – | – | – | – | X | – | 3 |
| Breathing exercise Breeze | |||||||
| Location | – | – | – | – | – | X | 3 |
| Perceived breathing detection accuracy | – | – | – | – | – | X | 3 |
| Accelerometer | – | – | – | – | – | X2 | 1,2 |
| Gyroscope | – | – | – | – | – | X2 | 1,2 |
| Magnetometer | – | – | – | – | – | X2 | 1,2 |
| Light sensor | – | – | – | – | – | X2 | 1,2 |
| Ambient temperature sensor | – | – | – | – | – | X2 | 1,2 |
| Humidity sensor | – | – | – | – | – | X2 | 1,2 |
| Pressure sensor | – | – | – | – | – | X2 | 1,2 |
| Step counts since start | – | – | – | – | – | X2 | 1,2 |
| Proximity sensor | – | – | – | – | – | X2 | 1,2 |
| Smartwatch groups | |||||||
| Physical activity | – | – | – | – | – | X3 | 1,2,3 |
| Heart-rate | – | – | – | – | – | X3 | 1,2,3 |
| Heart-rate variability | – | – | – | – | – | X3 | 1,2,3 |
| Sleep duration, length of sleep phases | – | – | – | – | – | X3 | 1,2,3 |
| Oxygen saturation | – | – | – | – | – | X3 | 1,2,3 |
| Respiration rate | – | – | – | – | – | X3 | 1,2,3 |
| Stress level | – | – | – | – | – | X3 | 1,2,3 |
| Skin temperature | – | – | – | – | – | X3 | 1,2,3 |
| Motion-based activity | – | – | – | – | – | X3 | 1,2,3 |
| Steps | – | – | – | – | – | X3 | 1,2,3 |
Intervention days are repeated measures collected over each day when completing the daily trip. 1Each day one of three dimensions (mood, agitation, anhedonia) is used. X2 Only while Breeze is used. X3 Only in the smartwatch group