title: The relationship between shift work and sleep patterns in nurses.
abstract: The scope of this study was to evaluate the sleep/wake cycle in shift work nurses, as well as their sleep quality and chronotype. The sleep/wake cycle was evaluated by keeping a sleep diary for a total of 60 nurses with a mean age of 31.76 years. The Horne & Östberg Questionnaire (1976) for the chronotype and the Pittsburgh Sleep Quality Index (PSQI) for sleep quality were applied. The results revealed a predominance of indifferent chronotypes (65.0%), followed by moderately evening persons (18.3%), decidedly evening persons (8.3%), moderately morning persons (6.6%) and decidedly morning persons (1.8%). The sleep quality perception was analyzed by the visual analogical scale, showing a mean score of 5.85 points for nighttime sleep and 4.70 points for daytime sleep, which represented a statistically significant difference. The sleep/wake schedule was also statistically different when considering weekdays and weekends. The PSQI showed a mean of 7.0 points, characterizing poor sleep quality. The results showed poor sleep quality in shift work nurses, possibly due to the lack of sport and shift work habits.
authors.affiliation: Departamento de enfermagem, Universidade Federal de São Paulo, Rua Renato Reis 56, Jardim América. 13084-445 Campinas SP, Brazil. martino.milva@unifesp.br
authors.forename: Milva Maria Figueiredo
authors.initials: MM
authors.lastname: De Martino
authors.forename: Ana Cristina Basto
authors.initials: AC
authors.lastname: Abreu
authors.forename: Manuel Fernando dos Santos
authors.initials: MF
authors.lastname: Barbosa
authors.forename: João Eduardo Marques
authors.initials: JE
authors.lastname: Teixeira
mesh_terms: D000328:Adult; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009729:Nursing; D016272:Occupational Health; D012890:Sleep / Q000502:physiology*; D014940:Work Schedule Tolerance / Q000502:physiology*; D055815:Young Adult