Table 2.
Mean, SD, 95% CI, and paired t test results for the actigraphy and the Oura ring sleep parameters in a sample of 45 healthy adults.
| Parameter | Mean (SD) | 95% CI | t value (df) | P value | |
| Total sleep time (min) | |||||
|
|
t test | N/Aa | N/A | −6.26 (265) | <.001 |
|
|
Actigraphy | 419.04 (78.31) | 409.59-428.5 | N/A | N/A |
|
|
Oura ring | 434.31 (72.14) | 425.6-443.02 | N/A | N/A |
| Sleep efficiency (%) | |||||
|
|
t test | N/A | N/A | 3.69 (265) | <.001 |
|
|
Actigraphy | 90.47 (5.1) | 89.86-91.09 | N/A | N/A |
|
|
Oura ring | 89.13 (6.28) | 88.38-89.89 | N/A | N/A |
| Wake after sleep onset (min) | |||||
|
|
t test | N/A | N/A | 10.03 (265) | <.001 |
|
|
Actigraphy | 43.57 (27.28) | 40.28-46.86 | N/A | N/A |
|
|
Oura Ring | 26.17 (24.98) | 23.15-29.18 | N/A | N/A |
aN/A: not applicable.