Table 7.
Postparticipation survey: adherence domain.
| Questions | Total percentage agreementa,b (N=32)c, % or % (n/N) | App percentage agreementa,b (N=20)c, % or % (n/N) | Tag percentage agreementa,b (N=12)c, % or % (n/N) | P valued | |||||
| Over the course of the 2-week study period, for what proportion of your total work shifts did you have the device either on you or within arms’ reach? | 87e | 91e | 81e | .06 | |||||
| The device was convenient to carry with me throughout my work shifts. | 69 (22/32) | 55 (11/20) | 92 (11/12) | .03 | |||||
| How did you carry the device with you throughout your workday? (tag only) | |||||||||
|
|
N/Af | N/A | 92 (11/12) | N/A | |||||
|
|
Bag | N/A | N/A | 0 (0/12) | N/A | ||||
|
|
Belt/lanyard | N/A | N/A | 8 (1/12) | N/A | ||||
|
|
Left at workspace | N/A | N/A | 8 (1/12) | N/A | ||||
| What were the most common reasons why you would not carry the device with you during a work shift? | |||||||||
|
|
Forgot at home | 9 (2/23) | 15 (2/13) | 0 (0/10) | .19 | ||||
|
|
Intentionally left at home | 0 (0/23) | 0 (0/13) | 0 (0/10) | N/A | ||||
|
|
Forgot at desk/workstation | 74 (17/23) | 69 (9/13) | 80 (8/10) | .56 | ||||
|
|
Intentionally left at desk/workstation | 9 (2/23) | 15 (2/13) | 0 (0/10) | .19 | ||||
|
|
Unable to carry it into certain lab environments | 22 (5/23) | 38 (5/13) | 0 (0/10) | .03 | ||||
|
|
Left it to charge | 13 (3/23) | 0 (0/13) | 30 (3/10) | .03 | ||||
| I would be more likely to carry the device with me if it were smaller (for instance, the size of a thumb drive that could be attached to a lanyard). (app only) | N/A | 95 (19/20) | N/A | <.001 | |||||
| I would be more likely to carry the tag with me if it were larger (for instance, the size of a phone). (tag only) | N/A | N/A | 0 (0/12) | <.001 | |||||
aUnless otherwise specified.
bPercentage agreement was calculated by dividing the number of Likert or binary responses indicating agreement by the total number of responses for each question.
cSome questions were not answered by all participants; exact counts of agreement and total responses are shown in parentheses for each question.
dP values obtained by tests of proportions for differences in percentage agreement and by unpaired t tests for differences in means.
eMean response.
fN/A: not applicable.