Table 4 Correlation coefficients between diurnal features and MZ features for BD, BPD and HC participants.

Diurnal Features	BD			BPD			HC
	Correlation Coefficient			Correlation Coefficient			Correlation Coefficient
	MZneg	MZpos	MZirr	MZneg	MZpos	MZirr	MZneg	MZpos	MZirr
Total Acceleration
stdPhase	−0.374	−0.178	−0.122	0.206	0.470	0.174	0.219	0.174	0.176
stdMESOR	0.298	0.151	0.120	0.676	0.812**	0.276	0.448	0.691*	0.481
stdAmplitude	0.226	−0.292	0.020	0.465	0.724*	0.074	−0.052	0.258	−0.190
diffPhase	−0.365	−0.174	−0.065	0.105	0.417	−0.104	0.049	0.251	−0.069
diffMESOR	0.332	0.252	0.225	−0.119	0.185	0.222	0.635	0.731*	0.658
diffAmplitude	−0.037	−0.120	−0.241	0.452	0.733*	0.029	0.004	0.046	−0.012
RMS	0.100	−0.363	−0.065	0.923***	0.887**	0.583	0.350	0.535	0.464
‘Sleep’
stdPhase	0.384	0.473	0.474	0.703*	0.617	0.521	−0.134	0.282	−0.112
stdAmplitude	0.411	0.595	0.618	−0.071	−0.035	0.492	−0.433	−0.423	−0.462
diffPhase	0.422	0.424	0.529	0.683	0.487	0.498	0.017	0.139	0.07
diffAmplitude	0.245	0.308	0.297	−0.397	−0.277	−0.068	−0.351	−0.413	−0.326
RMS	0.309	0.567	0.555	0.655	0.599	0.525	−0.118	0.015	0.071
Heart Rate
stdPhase	−0.265	0.112	−0.177	0.427	0.690	0.276	−0.211	−0.092	−0.094
stdMESOR	−0.145	0.141	−0.430	0.190	0.177	0.579	−0.125	0.096	−0.235
stdAmplitude	−0.253	0.471	−0.171	0.781**	0.740*	0.761**	0.066	−0.139	−0.026
diffPhase	−0.265	0.051	−0.087	0.395	0.503	0.441	−0.244	−0.068	−0.153
diffMESOR	−0.195	0.229	−0.465	0.143	0.163	0.706*	0.108	0.559	0.248
diffAmplitude	−0.367	0.136	−0.407	0.848**	0.687*	0.576	−0.038	−0.006	−0.092
RMS	−0.195	0.115	−0.180	0.301	0.228	0.561	−0.198	0.303	−0.165

Pearson correlation coefficients, with statistically significant correlations appearing in bold. ^*Represents the FDR = 0.05 level, ^**The FDR = 0.01 level and ^***The FDR <0.001 level. For diurnal features, stdPhase, stdMESOR and stdAmplitude denote standard deviation of the difference between daily and total sinusoids measures. diff indicates the feature is the standard deviation of successive differences.

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