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Título

THE RELATION BETWEEN SERUM VITAMIN D AND SLEEP QUALITY ON FEMALE WORKERS OF DAY AND NIGHT SHIFT IN A HOSPITAL OF WESTERN PARANÁ

Introdução

Vitamin D deficiency is an increasing problem in modern society and may be associated with concomitant increase in sleep disorders; and this may be associated with working shifts.

Objetivo

To perform an investigation of the association between serum levels of vitamin D and the sleep quality of day and night shift workers.

Métodos

We selected two groups of female shift workers who did not perform vitamin D supplementation. They answered a questionnaire with variables of: age, race, sleep duration, daily sun exposure and with the Pittsburgh Sleep Quality Index. Serum vitamin D levels were measured at the study site and correlated with the variables. Statistical analysis using Fisher Exact Test established the associations between the variables. Results: The average age of participants was 41 years. Most are in the sun <30 minute daily and slept for five to eight hours. Both night-shift workers and day-shift workers had poor sleep quality and vitamin D deficiency. There were no significant associations between vitamin D levels and sleep quality in shift workers.

Resultados

Some previous studies have shown a similar result to the one obtained; whereas others have found a significant association between vitamin D levels and sleep quality in shift workers.

Conclusões

Regardless of whether participants worked day or night shifts, vitamin D deficiency and poor sleep quality were prevalent in most of the study participants.

Palavras-chave

Vitamin D, sleep quality, sleep disorders, work shift.

Área

Área Clínica

Instituições

Centro Universitário Fundação Assis Gurgacz - Parana - Brasil, Universidade Estadual do Oeste do Paraná - Parana - Brasil

Autores

KARINA FERNANDA BORTOLOTO PREDOLIN, CAROLINA FERRAZ DE PAULA SOARES, JULIANA EMI SHIMABUKURO, JAIME VENTURA DA SILVA JUNIOR, SARA NAOMI SHIMABUKURO, Luana Piva Netto, Paula Turra Provensi