Nigerian Postgraduate Medical Journal (Jan 2014)
Sleep Disorders in women attending antenatal care at a Tertiary Hospital in Nigeria
Abstract
Aims and Objectives: To determine the prevalence of sleep disorders in a population of Nigerian women during pregnancy and to evaluate the frequency of these sleep disorders according to the three trimesters of pregnancy. Subjects and Methods: A prospective cross-sectional design. Participants′ were interviewed at the antenatal clinic with a questionnaire to evaluate their sleep during and before pregnancy and to appraise disturbance in their sleep according to the trimester. Results: Two hundred and three pregnant women participated in the survey and were evaluated at one of three points in pregnancy: 1st trimester (n=57), 2nd trimester (n=71) and 3rd trimester (n=75). Overall, the prevalence of sleep disorder in the population surveyed was 35.5% (72/203), more women experienced sleep disturbances in the first (42.1%) and third (40%) trimester of pregnancy compared to the second (25.3%). In terms of types of sleep disorders; 96(47.3%) reported insomnia, 32(15.8%) sleep breathing disorders, 86(42.4%) excessive daytime sleepiness, 172(84.7%) mild sleepiness and 64(31.5%) significant specific awakenings. The most common reason for specific awakening was frequent urination (78.6%). These sleep disorders were more common in the third trimester of pregnancy but only insomnia and specific awakenings showed statistical significance, p=0.007 and 0.031 respectively. Logistic regression model showed that nulliparity, increased BMI and previous adverse obstetric events had significant independent associations with sleep disorders. Conclusion: Sleep disorders are common in pregnancy, notably in the first and third trimesters.
