Table 4.

Multinomial logistic regression of factors associated with THI-CM categorical

	Univariate								Adjusted for Obstructive sleep apnoea
	Grade2 vs. Grade1				Grade3-5 vs. Grade1				Grade2 vs. Grade1				Grade3-5 vs. Grade1
	OR	(95%CI)		p value	OR	(95%CI)		p value	OR	(95%CI)		p value	OR	(95%CI)		p value
Male	0.95	(0.24-	3.75)	0.944	0.74	(0.20-	2.79)	0.657
Age	1.04	(0.97-	1.11)	0.273	0.98	(0.92-	1.04)	0.466
BMI (kg/m2)	1.07	(0.91-	1.25)	0.418	1.07	(0.91-	1.25)	0.409
Neck circumference (cm)	1.09	(0.95-	1.25)	0.204	0.97	(0.84-	1.12)	0.674
Waist circumference (cm)	1.02	(0.96-	1.08)	0.509	1.01	(0.96-	1.07)	0.601
PHQ-9 (total score)	1.07	(0.90-	1.28)	0.449	1.37	(1.13-	1.66)	0.001**	1.00	(0.82-	1.22)	0.996	1.28	(1.04-	1.56)	0.017*
Depression	1.31	(0.37-	4.64)	0.676	16.43	(2.89-	93.41)	0.002**	0.70	(0.15-	3.18)	0.640	8.68	(1.19-	63.32)	0.033*
Obstructive sleep apnoea	3.33	(0.78-	14.14)	0.104	16.80	(1.82-	154.89)	0.013*
Subjective sleep quality	1.92	(0.78-	4.70)	0.155	6.15	(2.09-	18.04)	0.001**
Sleep latency	0.96	(0.49-	1.88)	0.912	1.69	(0.86-	3.32)	0.126
Sleep duration	1.11	(0.57-	2.17)	0.753	1.95	(0.95-	4.01)	0.069
Habitual sleep efficiency	1.66	(0.80-	3.44)	0.172	2.14	(1.05-	4.36)	0.037*
Sleep disturbances	4.54	(1.35-	15.22)	0.014*	6.72	(1.95-	23.22)	0.003**
Use of sleep medication	1.80	(1.10-	2.95)	0.019*	1.93	(1.19-	3.16)	0.008**
Daytime dysfunction	2.58	(1.08-	6.19)	0.034*	3.78	(1.55-	9.26)	0.004**
Apnea–Hypopnea Index	1.01	(0.98-	1.05)	0.525	1.00	(0.97-	1.04)	0.799
Apnea–Hypopnea Index > 5	1.18	(0.29-	4.78)	0.816	1.32	(0.33-	5.29)	0.696

. *p < 0.05, **p < 0.01. Depression defined by PHQ-9 ≥ 10. PHQ-9, Patient Health Questionnaire-9