Table 2.

Associations between sleep characteristics and odor identification and olfactory sensitivity among NSHAP Wave 2 olfaction-sleep sub-sample (N=345)

	Model 11			Model 22
	Odor Identification
Variable	Beta coefficient	95% CI	p-value	Beta coefficient	95% CI	p-value
WASO	−0.013	(−0.022, −0.003)	<0.01	−0.013	(−0.022, −0.004)	<0.01
Fragmentation	−0.043	(−0.083, −0.003)	0.04	−0.039	(−0.084, 0.006)	0.09
Duration – hours (continuous)	0.027	(−0.111, 0.164)	0.70	0.005	(−0.156, 0.167)	0.95
Duration (categorical)
<5 hours	−0.291	(−0.829, 0.771)	0.94	0.383	(−0.773, 1.539)	0.51
5-8 hours	-ref-	-ref-	-ref-	-ref-	-ref-	-ref-
>8 hours	0.080	(−0.325, 0.484)	0.69	0.293	(−0.142, 0.727)	0.18
Self-Reported Duration – hours	−0.130	(−0.323, 0.063)	0.38	−0.154	(−0.396, 0.088)	0.21
Troubled Sleep	0.010	(−0.095, 0.114)	0.85	0.064	(−0.065, 0.194)	0.32
	Olfactory Sensitivity
WASO	−0.003	(−0.008, 0.003)	0.39	−0.003	(−0.009, 0.004)	0.42
Fragmentation	0.003	(−0.027, 0.032)	0.84	0.000	(−0.030, 0.030)	0.99
Duration – hours (continuous)	−0.180	(−0.290, −0.70)	<0.01	−0.152	(−0.275, −0.029)	0.02
Duration (categorical)
<5 hours	0.214	(−0.388, 0.816)	0.49	0.104	(−0.728, 0.936)	0.80
5-8 hours	-ref-	-ref-	-ref-	-ref-	-ref-	-ref-
>8 hours	−0.532	(−0.991, −0.072)	0.02	−0.426	(−0.897, 0.044)	0.08
Self-Reported Duration – hours	−0.107	(−0.216, 0.002)	0.05	−0.074	(−0.204, 0.055)	0.25
Troubled Sleep	−0.022	(−0.103, 0.059)	0.59	−0.010	(−0.077, 0.096)	0.82

¹Models are adjusted for age and gender

²Models are further adjusted for race/ethnicity, BMI, a modified Charlson Comorbidity Index, Center for Epidemiologic Studies Depression Scale (CES-D), sleep medication and antidepressant usage, and current smoking status.