Investigation of obstructive sleep apnoea syndrome prevalence among long-distance drivers from Zonguldak, Turkey

Table 1 Differences in symptoms among study participants

Symptoms	OSAS (+) in PSG	OSAS (−) in PSG	Negatıve symptoms at questionnaire	p	Intergroup comparison*
					p^θ	p^λ	p^ω
	n = 34%	n = 8	n = 199
Witness apnoea	64.7	12.5	1	<0.001	0,015	<0.001	NS
Snoring	100	100	45.1	<0.001	NA	<0.001	*0.002*
Awakening during sleep	67.6	50	25.9	<0.001	NS	<0.001	NS
Daytime sleepiness	61.8	37.5	18.7	<0.001	NS	<0.001	NS
Morning fatigue	73.5	75	48.2	0.011	NS	0.009	NS
Character changes	52.9	75	24.9	<0.001	NS	0.002	NS
Cognitive disorders	58.8	50	21.2	<0.001	NS	<0.001	NS
Mouth dryness	82.4	50	46.1	<0.001	NS	<0.001	NS
Sweating	61.8	62.5	38.3	0.02	NS	0.014	NS
Nasal obstruction	76.5	75	42.5	<0.001	NS	<0.001	NS
Sleepiness while driving	41.2	37.5	14.5	0.001	NS	0.001	NS
Sexual dysfunction	41.2	37.5	18.7	0.009	NS	0.006	NS

^θRepresents comparison with OSAS (+) vs. OSAS (−) subjects in PSG; ^ω represents comparison with OSAS (+) subjects in PSG vs. subjects with negative symptoms at questionnaire, ^λrepresents comparison with OSAS (−) subjects in PSG vs. subjects with negative symptoms at questionnaire.

ISSN: 2049-6958