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. 2023 Jun 22;11:186. doi: 10.1186/s40359-023-01215-1

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