Table 5.
Proportion of active tests that were considered free of play-to-quit behaviours.
| Functional domain | Test | Sensors used | Digital measure | Number of test performed without play-to-quit behaviour, % (n/N) | Quality control criterion | ||
|---|---|---|---|---|---|---|---|
| Self-declared MS participants | Self-declared non-MS participants | All participants | |||||
| Cognition | IPS Test | Touchscreen | Correct response, n | 99.7% (4073/4086) | 86.3% (794/920) | 97.2% (4867/5006) | Response selected independently of symbol to be matched |
| Cognition | IPS Digit–Digit Test | Touchscreen | Correct responses, n | 99.7% (3950/3962) | 88.5% (710/802) | 97.8% (4660/4764) | Response selected independently of symbol to be matched |
| Hand motor function | Pinching Test | Touchscreen | Successful pinches, n | 99.9% (22,521/22,537) | 99.3% (3212/3235) | 99.8% (25,733/25,772) | No gestures recorded by touchscreen (no screen interaction) |
| Hand motor function | DaS Test | Touchscreen | Average best Hausdorff distance across shapes | 87.5% (22,053/25,198) | 61.2% (3659/5980) | 82.5% (25,712/31,178) | No touch events for any of the six shapes |
| Gait and balance | SBT | Accelerometer | Sway path, m/s2 | 96.2% (18,951/19,693) | 89.1% (2272/2550) | 95.4% (21,223/22,243) | Phone is kept on the table |
| Gait and balance | UTT | Accelerometer, gyroscope | Mean turn speed, rad/s | 98.2% (17,528/17,846) | 96.6% (2060/2133) | 98.0% (19,588/19,979) | Phone is kept on the table |
| Gait and balance | 2MWT | Accelerometer | Steps, n | 99.6% (16,203/16,261) | 97.9% (1193/1219) | 99.5% (17,396/17,480) | Phone is kept on the table |
2MWT Two-Minute Walk Test, DaS Draw a Shape, IPS Information Processing Speed, MS multiple sclerosis, s seconds, SBT Static Balance Test, UTT U-Turn Test.