Table 2.
Descriptive statistics for the intervention’s acceptability and usability scores at each time point for the overall sample (n=49) and stratified by the sociodemographic variables (n=46).
| Sociodemographic variables | Total (n=49) | Sex | Age group (years) | Racial group | ||||||||||||
|
|
|
Female (n=23) | Male (n=23) | 18-50 (n=37) | 51-70 (n=9) | People of color (n=24) | White (n=22) | |||||||||
| Acceptability (Acceptability of Intervention Measure) | ||||||||||||||||
|
|
Day 1, mean (SD; min-max) | 4.06 (0.57; 1.75-5.00) | 4.00 (0.65; 1.75-5.00) | 4.14 (0.49; 3.00-5.00) | 4.02 (0.57; 1.75-5.00) | 4.22 (0.58; 3.25-5.00) | 4.08 (0.70; 1.75-5.00) | 4.05 (0.41; 3.00-5.00) | ||||||||
|
|
Day 7, mean (SD; min-max) | 4.26 (0.59; 2.75-5.00) | 4.32 (0.61; 2.75-5.00) | 4.25 (0.49; 3.25-5.00) | 4.29 (0.55; 2.75-5.00) | 4.28 (0.60; 3.25-5.00) | 4.33 (0.59; 2.75-5.00) | 4.24 (0.52; 3.25-5.00) | ||||||||
|
|
Day 14, mean (SD; min-max) | 4.23 (0.57; 2.75-5.00) | 4.32 (0.71; 2.75-5.00) | 4.21 (0.43; 3.25-5.00) | 4.28 (0.59; 2.75-5.00) | 4.19 (0.61; 3.25-5.00) | 4.26 (0.60; 2.75-5.00) | 4.26 (0.57; 3.00-5.00) | ||||||||
|
|
P value | .04a | .99b | .99b | .90b | .90b | .88b | .88b | ||||||||
| Usability | ||||||||||||||||
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Perceived impact | |||||||||||||||
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|
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Day 1, mean (SD; min-max) | 4.34 (0.71; 2.67-5.00) | 4.25 (0.73; 2.67-5.00) | 4.41 (0.71; 3.00-5.00) | 4.32 (0.64; 2.67-5.00) | 4.33 (1.00; 3.00-5.00) | 4.44 (0.68; 3.00-5.00) | 4.21 (0.75; 2.67-5.00) | |||||||
|
|
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Day 7, mean (SD; min-max) | 4.49 (0.66; 2.67-5.00) | 4.48 (0.74; 2.67-5.00) | 4.46 (0.60; 3.33-5.00) | 4.45 (0.66; 2.67-5.00) | 4.54 (0.75; 3.33-5.00) | 4.56 (0.65; 2.67-5.00) | 4.38 (0.69; 2.67-5.00) | |||||||
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Day 14, mean (SD; min-max) | 4.40 (0.82; 1.00-5.00) | 4.44 (0.90; 1.00-5.00) | 4.30 (0.78; 2.33-5.00) | 4.50 (0.76; 1.00-5.00) | 3.85 (0.96; 2.33-5.00) | 4.25 (0.92; 1.00-5.00) | 4.50 (0.74; 2.33-5.00) | |||||||
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P value | .80a | .72b | .72b | .27b | .27b | .68b | .68b | |||||||
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|
Usefulness | |||||||||||||||
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|
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Day 1, mean (SD; min-max) | 4.66 (0.47; 3.00-5.00) | 4.66 (0.45; 3.67-5.00) | 4.65 (0.51; 3.00-5.00) | 4.69 (0.40; 3.67-5.00) | 4.53 (0.72; 3.00-5.00) | 4.63 (0.56; 3.00-5.00) | 4.68 (0.38; 3.67-5.00) | |||||||
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Day 7, mean (SD; min-max) | 4.68 (0.39; 3.56-5.00) | 4.70 (0.40; 3.56-5.00) | 4.66 (0.41; 3.78-5.00) | 4.71 (0.36; 3.56-5.00) | 4.53 (0.54; 3.78-5.00) | 4.68 (0.42; 3.78-5.00) | 4.68 (0.39; 3.56-5.00) | |||||||
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Day 14, mean (SD; min-max) | 4.60 (0.68; 1.00-5.00) | 4.57 (0.90; 1.00-5.00) | 4.62 (0.46; 3.67-5.00) | 4.65 (0.72; 1.00-5.00) | 4.37 (0.61; 3.67-5.00) | 4.47 (0.90; 1.00-5.00) | 4.73 (0.36; 3.89-5.00) | |||||||
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P value | .50a | .76b | .76b | .13b | .13b | .82b | .82b | |||||||
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Ease of use | |||||||||||||||
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Day 1, mean (SD; min-max) | 4.60 (0.57; 3.00-5.00) | 4.61 (0.51; 3.60-5.00) | 4.58 (0.65; 3.00-5.00) | 4.67 (0.45; 3.60-5.00) | 4.29 (0.91; 3.00-5.00) | 4.49 (0.64; 3.00-5.00) | 4.71 (0.49; 3.20-5.00) | |||||||
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Day 7, mean (SD; min-max) | 4.67 (0.53; 2.60-5.00) | 4.76 (0.37; 4.00-5.00) | 4.53 (0.67; 2.60-5.00) | 4.77 (0.35; 4.00-5.00) | 4.13 (0.89; 2.60-5.00) | 4.59 (0.61; 2.60-5.00) | 4.71 (0.47; 3.20-5.00) | |||||||
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Day 14, mean (SD; min-max) | 4.64 (0.71; 1.00-5.00) | 4.64 (0.88; 1.00-5.00) | 4.61 (0.56; 3.20-5.00) | 4.72 (0.71; 1.00-5.00) | 4.24 (0.71; 3.20-5.00) | 4.52 (0.94; 1.00-5.00) | 4.73 (0.41; 3.80-5.00) | |||||||
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P value | .79a | .69b | .69b | .004b | .004b | .30b | .30b | |||||||
aP value corresponds to the null hypothesis of no mean difference between time points (days 1, 7, and 14 of follow-up).
bP value corresponds to the null hypothesis of no mean difference between groups.