Table 2.

Binary sleep–wake and nonwear–wear classification.

Classification	Approach	Outer Cross-validation			Test
		F1 (%)	AP (%)	Kappa	F1 (%)	AP (%)	Kappa
Sleep–wake	Sadeh	69.24	62.89	0.39	68.13	61.75	0.37
	Cole-Kripke	68.66	62.23	0.39	67.49	61.15	0.36
	vanHees	70.23	61.53	0.41	70.85	62.30	0.42
	Random forests	75.91 ± 2.43	80.27 ± 2.36	0.52 ± 0.05	73.93	78.76	0.50
Nonwear	Random forests	91.28 ± 2.31	96.95 ± 1.47	0.83 ± 0.05	93.31	99.08	0.85

F1 F1-score, AP average precision (mean ± standard deviation).