Table 2.
Comparison of baseline characteristics between the use (participants downloaded the app) and nonuse (participants did not download the app) groups.
| Variables | Both groups (n=48) | Use (n=24) | Nonuse (n=24) | Chi-square (df) or t test (df) | P value | |
| Age (in years), mean (SD) | 57.3 (10.3) | 56.9 (9.8) | 57.8 (10.9) | –0.279 (46) | .78 | |
| Gender, n (%) |
|
|
|
1.0 (1) | >.999 | |
|
|
Male | 14 (29.2) | 7 (29.2) | 7 (29.2) |
|
|
|
|
Female | 34 (70.8) | 17 (70.8) | 17 (70.8) |
|
|
| Relation to patient, n (%) |
|
|
|
0.133 (4) | .14 | |
|
|
Patient self | 5 (10.4) | 3 (12.5) | 2 (8.3) |
|
|
|
|
Partner | 5 (10.4) | 1 (4.2) | 4 (16.7) |
|
|
|
|
First-degree relative | 34 (70.8) | 20 (83.3) | 14 (58.3) |
|
|
|
|
Second-degree relative | 3 (6.3) | 0 (0.0) | 3 (12.5) |
|
|
|
|
Other | 1 (2.1) | 0 (0.0) | 1(4.2) |
|
|
| Smartphone experience (years), n (%) |
|
|
|
0.008 (2) | .004 | |
|
|
<5 | 3 (6.3) | 2 (8.3) | 1 (4.2) | 0.551 (1) | >.999 |
|
|
5-10 | 8 (16.7) | 0 (0.0) | 8 (33.3) | 0.002 (1) | .004 |
|
|
>10 | 37 (77.1) | 22 (91.7) | 15 (62.5) | 0.016 (1) | .04 |
| Use of apps on a smartphone, n (%) | 48 (100) | 24 (100) | 24 (100) | — | >.999 | |
| Self-registered expert level, n (%) | 44 (91.7) | 23 (95.8) | 21 (87.5) | 0.296(1) | .61 | |