Table 3.
Results of a multivariate linear regression analysis for ISa on weight status and body composition indicators.
|
|
IS | Midpointb | TSTc | M10d | Age | Gender | Adjusted R2 | ||||||||||||
| BMI | |||||||||||||||||||
|
|
App | 0.213 | |||||||||||||||||
|
|
|
β (SE) | –0.342 (0.123) | 0.188 (0.109) | –0.119 (0.119) | –0.282 (0.108) | 0.196 (0.108) | 0.029 (0.111) |
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|
|
|
P value | .007 | .09 | .33 | .01 | .07 | .79 |
|
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|
|
Actigraphy | 0.262 | |||||||||||||||||
|
|
|
β (SE) | –0.225 (0.118) | 0.012 (0.107) | 0.458 (0.124) | 0.081 (0.135) | 0.285 (0.107) | 0.004 (0.096) |
|
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|
|
|
P value | .06 | .91 | <.001 | .56 | .009 | .97 |
|
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| Body fat % | |||||||||||||||||||
|
|
App | 0.408 | |||||||||||||||||
|
|
|
β (SE) | –0.293 (0.106) | 0.278 (0.094) | 0.024 (0.096) | –0.252 (0.095) | 0.296 (0.093) | –0.158 (0.095) |
|
||||||||||
|
|
|
P value | .008 | .004 | .82 | .009 | .002 | >.99 |
|
||||||||||
|
|
Actigraphy | 0.410 | |||||||||||||||||
|
|
|
β (SE) | –0.292 (0.105) | 0.011 (0.099) | 0.417 (0.112) | 0.101 (0.121) | 0.367 (0.121) | –0.206 (0.093) |
|
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|
|
|
P value | .02 | .91 | <.001 | .41 | <.001 | .03 |
|
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| Estimate visceral adipose tissue area | |||||||||||||||||||
|
|
App | 0.421 | |||||||||||||||||
|
|
|
β (SE) | –0.305 (0.105) | 0.188 (0.093) | –0.128 (0.104) | –0.364 (0.093) | 0.458 (0.091) | 0.087 (0.093) |
|
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|
|
|
P value | .005 | .05 | .22 | <.001 | <.001 | .36 |
|
||||||||||
|
|
Actigraphy | 0.437 | |||||||||||||||||
|
|
|
β (SE) | –0.268 (0.103) | 0.015 (0.098) | 0.335 (0.106) | –0.039 (0.117) | 0.536 (0.093) | 0.062 (0.091) |
|
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|
|
|
P value | .01 | .88 | .002 | .74 | <.001 | .49 |
|
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aIS: interdaily stability.
bMidpoint of sleep.
cTST: total sleep time.
dM10: the maximum 10 hours of physical activity within a 24-hour period (derived from actigraphy data).