Table 5.
Systolic Blood Pressure cleaning results.
| Device Name | Erroneous Data | Corrective Actions | Missing Data | Corrective Actions |
|---|---|---|---|---|
| Systolic Blood Pressure Code | ||||
| iHealth Clear | 0 | None | 0 | None |
| iHealth Track | 0 | None | 0 | None |
| Withings BPM | 0 | None | 0 | None |
| iHealth View | 0 | None | 1 | Dropped record |
| Systolic Blood Pressure Value | ||||
| iHealth Clear | 2 | kNN imputation | 2 | C4.5 imputation |
| iHealth Track | 2 | kNN imputation | 1 | C4.5 imputation |
| Withings BPM | 1 | kNN imputation | 4 | C4.5 imputation |
| iHealth View | 1 | kNN imputation | 3 | C4.5 imputation |
| Systolic Blood Pressure Unit | ||||
| iHealth Clear | 1 | Filled with value | 1 | Filled with value |
| iHealth Track | 1 | Filled with value | 0 | None |
| Withings BPM | 1 | Filled with value | 2 | Filled with value |
| iHealth View | 0 | None | 0 | None |