Prevalence of sleep apnea and daytime sleepiness in professional truck drivers

The prevalence of obstructive sleep apnea (OSA) among professional truck drivers has varied from 28 to 78% in previous studies. In this study we wanted estimate the OSA and with both subjectively measured sleepiness objectively ability stay awake (ie syndrome, OSAS) Finland. Altogether 2066 received a structured questionnaire. 175 had clinical examination laboratory studies, which included respiratory polygraphy (RP) maintenance wakefulness test (MWT). Three groups were formed: 75 subjects suspected apnea, healthy controls random sample 25 subjects. 1095 answered RP was performed on 172 167 participated MWT. mean age 40.7 years BMI 27.7 kgm−2. using various criteria were: AHI ≥5: 40.1%, AHI≥ 15: 16.2% and, 30: 7.2%. depended history. Prevalence AHI≥5 between 20 56.9% AHI≥15 4.3–25%. 4.8% ≥15 abnormally short latency MWT (<19.4 min). Moderate is common but significant inability awake, defined as <19.4 min, found about one twenty drivers.