Association between Sleep Duration, Work Type, and Hypertension in a Nigerian Oil and Gas Company

Isuo Francisca1, Maduka Omosivie2,*

1Department of Life Sciences, University of Roehampton, London.
2Department of Preventive and Social Medicine, University of Port Harcourt Teaching Hospital, Port Harcourt, Rivers State, Nigeria.

Abstract: Background: Researchers have speculated that there is an association between hypertension and short sleep duration (SSD) which has become a topic of great interest. This study investigated the association between sleep duration, work type, and hypertension in a Nigerian oil and gas company. Materials and Methods: The study was cross-sectional, done in oil and gas Company located in the South-south region of Nigeria. The 230 employees were randomly recruited from the phone directory and email address book to participate in the study using a questionnaire. The statistical analysis was done using SPSS version 21 with results presented as frequency/percentages. Results and Discussion: A substantial percentage (78.0%) of the study population worked in the daytime, while 22.0% reported working outside typical working hours (shift work), out of which 57.4% rotated between day and night shifts, and 42.6% reported rotating between morning, afternoon, and night shifts. In all, 11.2% of the participants slept for an average of 0 – 4 (but < 5) hours/night, 62.6% slept for 5 – 6 (but < 7) hours/night, and 26.2% slept for 7 – 9 hours/night. The overall proportion of participants with very good, fairly good, fairly bad, and very bad sleep quality was 39.4%, 52.8%, 6.5%, and 1.3% respectively. Conclusion: The sleep quality and work type were not significantly associated with the prevalence of hypertension among the oil workers.

Keywords:Sleep duration, work type, hypertension, association.


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