Table 1—

Clinical variables in the four subject groups

	Age yrs				BMI kg·M⁻²				ESS SCORE
No.	Controls	UARS	OSAS	OSHS	Controls	UARS	OSAS	OSHS	Controls	UARS	OSAS	OSHS
1	30.3	30.1	30.4	30	24	24.1	23.8	24.4	3	12	11	11
2	41.1	41.2	39.9	43.9	26	26.1	26.2	27.3	5	11	13	12
3	54.2	54	54.3	51.9	27	27	27.3	28.9	7	12	14	13
4	37.1	37.3	37.5	39.9	24.4	24.6	24.7	26	4	12	12	12
5	42.5	42.4	42.1	42	24.2	24.3	24.6	24.2	5	12	13	11
6	38.4	38.9	38.9	42.3	23.6	23.9	24.1	28	3	11	12	14
7	44.6	44.5	44.5	48.3	25.2	24.8	25.3	27	4	13	12	13
8	46.1	46.3	46.3	41.2	26.4	26.6	26.9	25.1	2	12	13	12
9	36.8	36.6	36.6	39.9	24.1	24.5	24.3	26.7	0	11	12	12
10	50.2	50.6	50.6	53.5	25.6	25.2	25.5	26.9	7	13	14	14
11	33.8	33.9	33.9	36.7	22.8	23.1	23.4	27	2	11	11	13
12	48.1	48.6	48.6	52.1	24.3	24.5	24.7	28.5	4	13	12	14
Mean	41.9	42.0	42.0	43.5	24.8	24.9	25.0	26.7	3.8	11.9	12.4	12.6
sd	7.05	7.10	7.12	6.95	1.24	1.15	1.22	1.51	2.04	0.79	1.00	1.08

Data presented as absolute values
BMI: body mass index
ESS: Epworth Sleepiness Scale
UARS: upper airway resistance
OSAS: obstructive sleep apnoea syndrome
OSHS: obstructive sleep hypopnoea syndrome