Effect of external motion on correspondence between infant actigraphy and maternal diary.
Correspondence between infant actigraphy and mother-recorded diary differed significantly when receiver-operator function area under the curve, correlation, and logistic regression was calculated with and without excluding periods of external motion. External motion occurred in 40% of recording time and significantly changed activity count per epoch.
Tsai
Shao-Yu
SY
Department of Family and Child Nursing, Box 357262, University of Washington, Seattle, WA 98195-7262, USA.
Burr
Robert L
RL
Thomas
Karen A
KA