| Factor Information | |
|---|---|
| Data ID | 918 |
| Factor | Between-device differences in wear time |
| Description | Between-device differences in wear time was a significant correlate of between-device differences in steps, but explained only 7% of the variance (r =0.072, p=0.048). On days were the two devices had similar wear time (n=12; ±30 min) the bias in steps was -1,854 (95%LoA -4,815 to 1,107). |
| Biomarker | NA |
| Classification | C4 (lifestycle factor - other) |
| Association | |
|---|---|
| Application | risk assessment |
| Objective | assess the validity of physical activity from a commercial activity tracker against a research-grade accelerometer under free living conditions in children with CHD. |
| p Value | 0.048 |
| Conclusion | Between-device differences in wear time was a significant correlate of between-device differences in steps, but explained only 7% of the variance (r =0.072, p=0.048). |
| Risk Factor | unknown |
| CHD Type | |
|---|---|
| ID | 148 |
| CHD Type | NA |
| CHD Subtype | NA |
| Reference | |
|---|---|
| PMID | 28347581 |
| Year | 2017 |
| Title | Validity of Commercial Activity Trackers in Children With Congenital Heart Disease. |
| Sample | ||
|---|---|---|
| Population | children | |
| Source | participants | |
| Region | Columbia,Canada | |
| Method | We assessed the association between devices using intraclass correlation coefficients (ICCs) and Bland-Altman plots. Receiver operating curves were used to identify Fitbit step cut points. | |
| Race | North America | |
| Disease History | N/A | |
| Treatment History | N/A | |
| Group | children with congenital heart disease (CHD)(Treatment) | children with congenital heart disease (CHD)(Control) |
| Number | N/A (total 30) | N/A (total 30) |
| Age | 10-18 years | 10-18 years |
| Gender (Male: Female) | N/A | N/A |
| Marker Level | N/A | N/A |
