TABLE 3.

Results of regression models using L_Aeq,8h and kurtosis-adjusted L_Aeq,8h to estimate NIPTS₃₄₆

	Coefficients B	λ (b2/b1)	t Stat	p value	B Lower 95%	B Upper 95%
Model 1: NIPTS346 = b0+b1LAeq,8h		N/A			R2 = 0.75	F = 182.20
Intercept	−36.25		−10.02	<0.0001	−43.30	−29.02
LAeq	0.57		13.50	<0.0001	0.49	0.66
Model 2: NIPTS346 = b0+b1LAeq,8h+b2log10(βN/3)		6.50			R2 = 0.88	F = 225.81
Intercept	−38.64		−15.41	<0.0001	−43.66	−33.62
LAeq	0.56		19.31	<0.0001	0.50	0.62
log10(βN/3)	3.64		8.22	<0.0001	2.79	4.40

Note: the effects of age, sex, and duration were controlled in the models.