Weighted Epworth sleepiness scale predicted the apnea-hypopnea index better

Guo, Qi; Song, Wei-dong; Li, Wei; Zeng, Chao; Li, Yan-hong; Mo, Jian-ming; Lü, Zhong-dong; Jiang, Mei

doi:10.1186/s12931-020-01417-w

Respiratory Research

Table 2 Association of the predictive rule of ESS with the AHI in the derivation cohort (n = 756)

From: Weighted Epworth sleepiness scale predicted the apnea-hypopnea index better

Criteria/item score		AHI ≥ 5		x² value	p value	OR (95% CI)	p value	AHI > 15		x² value	p value	OR (95% CI)	p value	AHI > 30		x² value	p value	OR (95% CI)	p value
Criteria/item score		Yes	No	x² value	p value	OR (95% CI)	p value	Yes	No	x² value	p value	OR (95% CI)	p value	Yes	No	x² value	p value	OR (95% CI)	p value
Sitting and reading	0	198	64	71.074	< 0.001	4.877 (3.153-7.543)	< 0.001	196	66	32.317	< 0.001	1.200 (1.015-1.303)	< 0.001	130	132	20.070	< 0.001	1.009 (0.946-1.076)	0.793
	1	276	24					236	64					116	184
	2	145	0					137	8					87	58
	3	49	0					47	2					27	22
Watching TV	0	205	58	50.811	< 0.001	3.793 (2.523-5.702)	< 0.001	193	70	24.151	< 0.001	1.819 (1.410-2.348)	< 0.001	117	146	8.162	0.043	1.246 (1.053-1.476)	0.011
	1	306	30					278	58					154	182
	2	112	0					104	8					60	52
	3	46	0					41	4					29	16
Sitting inactive in a public place (e.g., a theater or a meeting)	0	224	70	71.054	< 0.001	5.199 (3.241-8.340)	< 0.001	208	86	47.677	< 0.001	2.632 (1.969-3.520)	< 0.001	124	170	25.916	< 0.001	1.487 (1.250-1.768)	< 0.001
	1	284	16					252	48					132	168
	2	125	2					121	6					77	50
	3	35	0					35	0					27	8
As a passenger in a car for an hour without a break	0	164	40	38.853	< 0.001	2.316 (1.734-3.095)	< 0.001	148	56	24.843	< 0.001	1.663 (1.347-2.054)	< 0.001	90	114	2.140	0.544	1.057 (0.912-1.229)	0.459
	1	233	40					217	56					137	136
	2	186	8					174	20					90	104
	3	85	0					77	8					43	42
Lying down to rest in the afternoon when circumstances permit	0	81	20	11.846	0.008	1.377 (1.103-1.717)	0.005	81	20	6.991	0.072	1.208 (1.006-1.449)	0.043	51	50	11.919	0.008	1.108 (0.960-1.279)	0.159
	1	170	28					150	48					88	110
	2	233	20					211	42					105	148
	3	184	20					174	30					116	88
Sitting and talking to someone	0	456	82	24.166	< 0.001	5.285 (2.399-11.645)	< 0.001	410	128	36.123	< 0.001	4.542 (2.580-7.996)	< 0.001	238	300	11.438	0.010	1.506 (1.226-1.849)	< 0.001
	1	150	6					144	12					82	74
	2	48	0					48	0					30	18
	3	14	0					14	0					10	4
Sitting quietly after a lunch without alcohol	0	147	46	42.527	< 0.001	2.159 (1.630-2.861)	< 0.001	145	48	8.316	0.040	1.226 (1.004-1.496)	0.045	83	110	5.925	0.115	1.031 (0.886-1.200)	0.691
	1	244	28					230	42					144	128
	2	207	8					175	40					95	120
	3	70	6					66	10					38	38
In a car, while stopped for a few minutes in traffic	0	352	82	52.647	< 0.001	9.019 (4.023-20.218)	< 0.001	314	120	58.246	< 0.001	4.198 (2.724-6.470)	< 0.001	176	258	34.652	< 0.001	1.730 (1.427-2.096)	< 0.001
	1	212	6					200	18					112	106
	2	82	0					80	2					52	30
	3	22	0					22	0					20	2

NOTE: ESS Epworth sleepiness scale. AHI Apnea-hypopnea index. OR Odds ratio. CI Confidence interval

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