Table 3 Feasibility measures, targets, and outcomes

Enrollment

N of the total enrolled participants

 ≥ 16 participants

12 participants

N of day shift participants

 ≥ 8 day shift participants

9 participants

N of night shift participants

 ≥ 4 night shift participants

3 participants

Retention

N of blood pressure measurements of those attempted (e.g., 1 measurement per hour, over each 24-h sampling period)

 ≥ 80% expected

84%

N of heart rate measurements of those attempted (e.g., 1 measurement per 5 s, over each 24-h sampling period)

 ≥ 80% expected

60%

N of urine cortisol measurements of those collected (e.g., 2 collections over each 24-h sampling period)

 ≥ 80% expected

97%

N of the participants who completed the requested questionnaires

 ≥ 80% of participants with fully completed questionnaires

Patient Health Questionnaire- 9: 96% complete (n = 26 complete of 27 requested; e.g., 26/27)

Pittsburg Sleep Quality Index (PSQI):

100% complete (27/27)

Epworth Sleepiness Scale (ESS):

93% complete (25/27)

Exit Survey:

88% complete (7/8)

Acceptability

Self-reported difficulty participating in ambulatory monitoring (0–10 scale), mean (SD)

 < 4

6 (2.8) (among n = 8 respondents)

Self-reported difficulty of participating in urine collection (0–10 scale), mean (SD)

 < 4

1 (1.7) (among n = 6 respondents)

Self-reported difficulty of participating in surveys (0–10 scale), mean (SD)

 < 4

0 (0) (among n = 7 respondents)

N of participants who would recommend participating in this study to a friend

 ≥ 80% of participants

100% (among n = 6 respondents)

Scientific feasibility

Qualitative variation between sampling periods, for each participant

Heart rate monitor

 > 0% variation

Yes

Blood pressure monitor

 > 0% variation

Yes