Table 4.

Comparison between Fitbit and the best two-level models on microscopic performance measures.

	Per-epoch accuracy	Kappa	MMCC
Fitbit	0.638 ± 0.100	0.371 ± 0.148	0.387 ± 0.151
NBd + XGBd	0.701 ± 0.098*,a	0.422 ± 0.175	0.437 ± 0.177
RF + XGBd	0.681 ± 0.109	0.405 ± 0.187	0.419 ± 0.191
SVM + XGBd	0.704 ± 0.097*	0.427 ± 0.178	0.439 ± 0.180
NBd + XGBu	0.728 ± 0.123**	0.427 ± 0.214	0.445 ± 0.215
RF + XGBu	0.722 ± 0.109**	0.414 ± 0.206	0.437 ± 0.200
SVM + XGBu	0.731 ± 0.119**	0.433 ± 0.212	0.451 ± 0.214

^aBold indicates statistically significant difference compared to Fitbit.

^*p < 0.05;

^**p < 0.01.