Table 4: Discriminant analysis in 18 patients without AAD pre-treatment (Group 1a vs Group 2a) .

Table 4: Discriminant analysis in 18 patients without AAD pre-treatment (Group 1a vs Group 2a) . during daily activity (4A) and night sleep (4B). Performance of the classification rules based on single HRV parameter and combination of parameters.

4A	Parameters		AF Recurrence if	Sensitivity %	Specificity %	PPV %	NPP %	Accuracy %
daily activity	TD	Mean RR	> 893.92	71.4	72.7	62.5	80	72.2
	FFT	HF ms²	>73.08	90.9	42.9	71.4	75	72.2
		LF n.u	< 72.74	71.4	72.7	62.5	80	72.2
		HF n.u	>26.99	71.4	72.7	62.5	80	72.2
		LF/HF	< 4.57	85.7	72.7	66.7	88.9	77.8
	AR	HF %	> 21.62	71.4	72.7	62.5	80	72.2
		LF n.u	< 72.12	71.4	72.7	62.5	80	72.2
		HF n.u.	> 27.5	71.4	72.7	62.5	80	72.2
		LF/HF	< 3.84	85.7	63.6	60	87.5	72.2
	NL	SD1/SD2	> 0.492	42.9	81.8	66.7	75	72.2
	NL	ApEn	< 1.107	57.1	100	100	78.6	83.3
	F1		< 0	71.4	81.8	71.4	81.8	72.2
	F2		< 0	71.4	90.9	100	84.6	88.9
	F1 = -0.01 x HFms2fft -0.12 LFx n.u. fft +1.11 x LF/HF fft +0.07 x HF%AR +0.22 x LF n.u.AR -0.97 x LF/HFAR -8.58 F2 = -5.23 x SD1/SD2 +16.41 x ApEn -15.06

4B	Parameters		AF Recurrence if	Sensitivity %	Specificity %	PPV %	NPP %	Accuracy %
night sleep	TD	SDNN/RMSSD	> 1.032	71.4	72.7	66.7	88.9	77.8
	AR	VLF ms²	> 81.2	57.1	72.7	66.7	75	72.2
		HF %	< 32.93	100	55	58.3	100	72.2
		LF n.u.	> 60.57	100	55	64	100	77.8
		HF n.u.	< 38.83	100	64	64	100	77.8
	NL	SD1/SD2	< 0.588	85.7	63.6	60	87.5	72.2
		DFA a1	> 1.056	85.7	55	58.3	100	72.2
		ApEn	< 1.066	71.4	81.8	71.4	81.8	77.8
		SampEn	< 1.774	85.7	81.8	75	90	83.3
	F1		> 0	71.4	64	55.6	78	83.3
	F2		> 0	85.7	91	85.7	91	100
	F1 = 1.76 x SDNN/RMSSD + 0.01 x VLF ms2 - 0.03 x HF% + 0.01 x LF n.u. -2.31 F2 = 12.71 x SD1/SD2 + 6.44 x DFA a1 -19.50 x ApEn -7.8 x SampEn +20.35

FFT: Fast Fourier Transform. AR: Auroregressive. NL: Non-linear.