Table 2—

Results from day and night polygraphic recordings

Subject	Apnoea+hypopnoea index				Minimum S_a,O₂ %				Peak P_oes cmH₂O				MSLT MIN
No.	Controls	UARS	OSAS	OSHS	Controls	UARS	OSAS	OSHS	Controls	UARS	OSAS	OSHS	Controls	UARS	OSAS	OSHS
1	0.1	1.2	29	26	97	92	86	86	−5	−32	−26	−27	18	8.1	8	8
2	0.3	1.6	36	35	96	91	81	85	−7	−51	−32	−29	15	7.9	7.4	7.8
3	0.5	2.2	40	37	95	92	82	82	−6	−40	−26	−31	13	7.8	7	7.2
4	0.3	2.1	27	39	98	92	85	83	−7	−62	−35	−29	19	7.7	7.6	7.7
5	0.24	1.8	49	31	97	93	83	85	−6	−65	−42	−27	17	7.8	7.2	7.8
6	0.2	1.3	28	26	98	94	87	86	−6	−28	−24	−23	18	8.5	8.4	8
7	0.8	0.8	35	41	97	92	84	85	−8	−34	−33	−76	17	7.7	7.9	7.6
8	0.6	2.4	37	43	97	93	85	86	−7	−30	−40	−30	16.5	7.9	7.8	7.5
9	0.3	1.7	30	34	98	93	83	84	−6	−39	−31	−32	17.4	8.3	8.5	7.9
10	0.4	2.7	39	45	97	92	84	85	−6	−27	−46	−25	15.4	7.6	7.8	7.5
11	0.1	0.7	27	36	98	94	86	85	−5	−32	−27	−23	18.2	9	8.8	8.5
12	0.36	1.1	33	42	97	93	81	84	−6	−37	−32	−33	17.3	8.2	7.8	7
Mean	0.35	1.63	34.2	36.2	97	92.6	83.9	84	−6.25	−39.7	−32.8	−32	16.8	8.0	7.9	7.7
sd	0.20	0.64	6.58	6.25	0.90	0.90	1.98	1.23	0.9	12.9	6.9	14.2	1.7	0.4	0.5	0.4

Data presented as absolute values
S_a,O₂: arterial oxygen saturation
Peak P_oes: most negative peak end inspiratory oesophageal pressure measured during one night
MSLT: multiple sleep latency test (5 daytime tests)
UARS: upper airway resistance
OSAS: obstructive sleep apnoea syndrome
OSHS: obstructive sleep apnoea syndrome