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VANTTOLA, Päivi (2020); PUTTONEN, Sampsa; KARHULA, Kati; OKSANEN, Tuula; HÄRMÄ, Mikko. Employees with shift work disorder experience excessive sleepiness also on non-work days : a cross-sectional survey linked to working hours register in Finnish hospitals

VANTTOLA, Päivi (2020); PUTTONEN, Sampsa; KARHULA, Kati; OKSANEN, Tuula; HÄRMÄ, Mikko. Employees with shift work disorder experience excessive sleepiness also on non-work days : a cross-sectional survey linked to working hours register in Finnish hospitals

VANTTOLA, Päivi; PUTTONEN, Sampsa; KARHULA, Kati; OKSANEN, Tuula; HÄRMÄ, Mikko. Employees with shift work disorder experience excessive sleepiness also on non-work days : a cross-sectional survey linked to working hours register in Finnish hospitals. Industrial Health [online]. 2020. 58, 4. 366-374. [Consulta: 03.09.2020]. ISSN: 1880-8026. https://doi.org/10.2486/indhealth.2019-0179
 
Los empleados con trastornos del trabajo por turnos experimentan somnolencia excesiva también en los días no laborales: una encuesta transversal vinculada al registro de horas de trabajo en los hospitales finlandeses. Una proporción considerable de trabajadores por turnos tiene insomnio relacionado con el horario de trabajo y/o somnolencia excesiva, un fenómeno descrito como trastorno del trabajo por turnos. Todavía hay una falta de evidencia sobre si los empleados se recuperan o no de los síntomas de ese trastorno entre turnos de trabajo. En este trabajo se estudia si el trastorno del trabajo por turnos y sus subtipos están asociados con el insomnio y la somnolencia excesiva durante los días no laborables semanales y con el tiempo de sueño de 24 h.
 
Els empleats amb trastorns del treball per torns experimenten somnolència excessiva també en els dies no laborals: una enquesta transversal vinculada al registre d'hores de treball als hospitals finlandesos. Una proporció considerable de treballadors per torns té insomni relacionat amb l'horari de treball i/o somnolència excessiva, un fenomen descrit com a trastorn del treball per torns. Encara hi ha una falta d'evidència sobre si els empleats es recuperen o no dels símptomes d'aqueix trastorn entre torns de treball. En aquest treball s'estudia si el trastorn del treball per torns i els seus subtipus estan associats amb l'insomni i la somnolència excessiva durant els dies no laborables setmanals i amb el temps de somni de 24 h.
 
A considerable proportion of shift workers have work schedule-related insomnia and/or excessive sleepiness, a phenomenon described as shift work disorder (SWD). There is yet a lack of evidence on whether or not employees recover from symptoms of SWD between work shifts. We studied whether SWD and its subtypes are associated with insomnia and excessive sleepiness during weekly non-work days and with 24-h sleep time. Hospital employees answered a survey on SWD, insomnia and excessive sleepiness on weekly non-work days, and 24-h sleep. To identify shift workers with night shifts (n=2,900, 18% with SWD) and SWD, we linked survey responses to employers' register on working hours. SWD included three subtypes: insomnia only (SWD-I, 4%, n=102), excessive sleepiness only (SWD-Es, 8%, n=244), and both insomnia and excessive sleepiness (SWD-IEs, 6%, n=183). Based on regression analyses, SWD was associated with excessive sleepiness on non-work days (OR: 1.42, 95% CI: 1.07–1.88) and with insomnia on non-work days (0.53, 0.31–0.91). SWD-I was associated with excessive sleepiness on non-work days (2.25, 1.31–3.87) and with shorter sleep (7–7.5 h: 1.96, 1.06–3.63; ≤6.5h: 2.39, 1.24–4.59; reference: ≥8 h). The results suggest that especially employees with SWD-I may need longer time to overcome excessive sleepiness than allowed by their roster.